fixed activity object cache issue

android-example/app/src/main/AndroidManifest.xml

@@ -32,20 +32,20 @@
 
         <activity
                 android:name=".ui.activity.CreateActivity"
-                android:parentActivityName="android.support.v4.app.FragmentActivity"
+                android:parentActivityName="net.irext.ircontrol.ui.activity.MainActivity"
                 android:theme="@style/AppTheme">
             <meta-data
                     android:name="android.support.PARENT_ACTIVITY"
-                    android:value="android.support.v4.app.FragmentActivity"/>
+                    android:value="net.irext.ircontrol.ui.activity.MainActivity"/>
         </activity>
 
         <activity
                 android:name=".ui.activity.ControlActivity"
-                android:parentActivityName="android.support.v4.app.FragmentActivity"
+                android:parentActivityName="net.irext.ircontrol.ui.activity.MainActivity"
                 android:theme="@style/AppTheme">
             <meta-data
                     android:name="android.support.PARENT_ACTIVITY"
-                    android:value="android.support.v4.app.FragmentActivity"/>
+                    android:value="net.irext.ircontrol.ui.activity.MainActivity"/>
         </activity>
 
         <provider

android-example/app/src/main/java/net/irext/ircontrol/controller/ArduinoRemote.java

@@ -59,13 +59,9 @@ public class ArduinoRemote extends Remote {
 
     private Context mContext = null;
 
-    private static ArduinoRemote mInstance;
+    public ArduinoRemote(Context context, IRSocketEmitterCallback callback) {
-
+        this.mContext = context;
-    public static ArduinoRemote getInstance(Context context, IRSocketEmitterCallback callback) {
+        this.callback = callback;
-        if (mInstance == null) {
-            mInstance = new ArduinoRemote(context, callback);
-        }
-        return mInstance;
     }
 
     public Context getContext() {
@@ -82,9 +78,8 @@ public class ArduinoRemote extends Remote {
         void onResponse(String response);
     }
 
-    public ArduinoRemote(Context context, IRSocketEmitterCallback callback) {
+    public static ArduinoRemote getInstance(Context context, IRSocketEmitterCallback callback) {
-        this.mContext = context;
+        return new ArduinoRemote(context, callback);
-        this.callback = callback;
     }
 
     public void setCallback(IRSocketEmitterCallback callback) {
@@ -218,7 +213,9 @@ public class ArduinoRemote extends Remote {
         } else {
             Log.e(TAG, "unexpected response : " + response);
         }
-        callback.onResponse(response);
+        if (callback != null) {
+            callback.onResponse(response);
+        }
     }
 
     public int irControl(int category, int subCategory, int keyCode) {
@@ -236,7 +233,9 @@ public class ArduinoRemote extends Remote {
             try {
                 sendControlToEmitter(controlCommand);
             } catch (Exception e) {
-                callback.onResponse(E_INDICATION_FAILED);
+                if (callback != null) {
+                    callback.onResponse(E_INDICATION_FAILED);
+                }
             }
         }).start();
 

android-example/app/src/main/java/net/irext/ircontrol/ui/activity/ControlActivity.java

@@ -1,61 +1,349 @@
 package net.irext.ircontrol.ui.activity;
 
-import android.os.Bundle;
+import android.content.Context;
-import android.view.MenuItem;
+import android.graphics.Color;
+import android.os.*;
+import android.util.Log;
+import android.view.View;
+import android.widget.*;
+
 import androidx.appcompat.app.AppCompatActivity;
-import androidx.fragment.app.FragmentManager;
+import androidx.appcompat.content.res.AppCompatResources;
-import androidx.fragment.app.FragmentTransaction;
+import net.irext.decode.sdk.IRDecode;
+import net.irext.decode.sdk.utils.Constants;
 import net.irext.ircontrol.R;
-import net.irext.ircontrol.ui.fragment.ControlFragment;
+import net.irext.ircontrol.bean.RemoteControl;
+import net.irext.ircontrol.controller.ArduinoRemote;
+import net.irext.ircontrol.controller.PhoneRemote;
+import net.irext.ircontrol.controller.base.Remote;
+import net.irext.ircontrol.utils.FileUtils;
+import net.irext.ircontrol.utils.MessageUtils;
+import net.irext.ircontrol.utils.MiscUtils;
+import net.irext.ircontrol.utils.ToastUtils;
+
+import java.lang.ref.WeakReference;
 
 /**
  * Filename:       ControlActivity.java
  * Revised:        Date: 2017-04-22
  * Revision:       Revision: 1.0
  * <p>
- * Description:    Control activity containing control fragment
+ * Description:    Control activity containing control panel (without fragment)
  * <p>
  * Revision log:
  * 2017-04-22: created by strawmanbobi
  */
 @SuppressWarnings("unused")
-public class ControlActivity extends AppCompatActivity {
+public class ControlActivity extends AppCompatActivity implements View.OnClickListener {
 
     private static final String TAG = ControlActivity.class.getSimpleName();
 
-    public static final String KEY_REMOTE_ID = "KEY_REMOTE_ID";
+    private static final int VIB_TIME = 60;
 
-    private ControlFragment mFragment;
+    private static final int CMD_GET_REMOTE_CONTROL = 0;
+
+    private PhoneRemote mPhoneRemote;
+    private ArduinoRemote mArduinoRemote;
+
+    private MsgHandler mHandler;
+
+    private Long mRemoteID;
+    private RemoteControl mCurrentRemoteControl;
+
+    private TextView mTvControlTitle;
+    private EditText mEtEmitterIp;
+    private ImageButton mBtnConnect;
+    private View mVWConnectStatus;
+
+    public static final String KEY_REMOTE_ID = "KEY_REMOTE_ID";
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_control);
 
-        FragmentManager fragmentManager = getSupportFragmentManager();
+        mHandler = new MsgHandler(this);
 
-        mFragment = new ControlFragment();
+        mArduinoRemote = new ArduinoRemote(this, createCallback());
-        Bundle bundle = getIntent().getExtras();
+
-        mFragment.setArguments(bundle);
+        mPhoneRemote = PhoneRemote.getInstance(this);
-        FragmentTransaction transaction = fragmentManager.beginTransaction();
+
-        transaction.replace(R.id.rl_main_layout, mFragment);
+        initViews();
-        transaction.commit();
+
+        mRemoteID = getIntent().getLongExtra(KEY_REMOTE_ID, -1L);
+        if (-1 == mRemoteID) {
+            Log.d(TAG, "remote ID IS NULL");
+        } else {
+            Log.d(TAG, "get remote, ID = " + mRemoteID);
+            getRemote();
+        }
+    }
+
+    private void initViews() {
+        mTvControlTitle = findViewById(R.id.tv_control_title);
+
+        ImageButton btnPower = findViewById(R.id.iv_power);
+        ImageButton btnBack = findViewById(R.id.iv_back);
+        ImageButton btnHome = findViewById(R.id.iv_home);
+        ImageButton btnMenu = findViewById(R.id.iv_menu);
+        ImageButton btnUp = findViewById(R.id.iv_up);
+        ImageButton btnDown = findViewById(R.id.iv_down);
+        ImageButton btnLeft = findViewById(R.id.iv_left);
+        ImageButton btnRight = findViewById(R.id.iv_right);
+        ImageButton btnOK = findViewById(R.id.iv_ok);
+        ImageButton btnPlus = findViewById(R.id.iv_plus);
+        ImageButton btnMinus = findViewById(R.id.iv_minus);
+
+        btnPower.setOnClickListener(this);
+        btnBack.setOnClickListener(this);
+        btnHome.setOnClickListener(this);
+        btnMenu.setOnClickListener(this);
+        btnUp.setOnClickListener(this);
+        btnDown.setOnClickListener(this);
+        btnLeft.setOnClickListener(this);
+        btnRight.setOnClickListener(this);
+        btnOK.setOnClickListener(this);
+        btnPlus.setOnClickListener(this);
+        btnMinus.setOnClickListener(this);
+
+        mEtEmitterIp = findViewById(R.id.emitter_ip);
+        mBtnConnect = findViewById(R.id.btn_connect_emitter);
+        mVWConnectStatus = findViewById(R.id.vw_connect_status);
+
+        mBtnConnect.setOnClickListener(v -> {
+            vibrate(ControlActivity.this);
+            String emitterIp = mEtEmitterIp.getText().toString();
+            if (!MiscUtils.isValidIPv4(emitterIp)) {
+                Log.e(TAG, "IP address is invalid: " + emitterIp);
+                ToastUtils.showToast(ControlActivity.this, getString(R.string.input_emitter_ip_address), null);
+                return;
+            }
+            mArduinoRemote.connectToEmitter(emitterIp, String.valueOf(ArduinoRemote.EMITTER_PORT));
+        });
+    }
+
+    private ArduinoRemote.IRSocketEmitterCallback createCallback() {
+        return new ArduinoRemote.IRSocketEmitterCallback() {
+            @Override
+            public void onConnected() {
+                runOnUiThread(() -> onEmitterConnected());
+            }
+
+            @Override
+            public void onDisconnected() {
+                runOnUiThread(() -> onEmitterDisconnected());
+            }
+
+            @Override
+            public void onResponse(String response) {
+                Log.d(TAG, "onResponse: " + response);
+                onEmitterResponse(response);
+            }
+        };
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
+    protected void onResume() {
-        if (item.getItemId() == android.R.id.home) {
+        super.onResume();
-            onBackPressed();
+        long newRemoteId = getIntent().getLongExtra(KEY_REMOTE_ID, -1L);
-            return true;
+        if (newRemoteId != mRemoteID) {
+            mRemoteID = newRemoteId;
+            if (mRemoteID != -1) {
+                Log.d(TAG, "get remote, ID = " + mRemoteID);
+                getRemote();
+            }
         }
-        return super.onOptionsItemSelected(item);
     }
 
     @Override
-    public void onStop() {
+    protected void onStop() {
-        if (null != mFragment) {
-            mFragment.closeIRBinary();
-        }
         super.onStop();
+        mArduinoRemote.disconnect();
+        closeIRBinary();
     }
-}
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mArduinoRemote.disconnect();
+    }
+
+    private void getRemote() {
+        new Thread() {
+            @Override
+            public void run() {
+                MessageUtils.postMessage(mHandler, CMD_GET_REMOTE_CONTROL);
+            }
+        }.start();
+    }
+
+    private void showRemote() {
+        Log.d(TAG, "showRemote, remoteID = " + mRemoteID);
+        mCurrentRemoteControl = RemoteControl.getRemoteControl(mRemoteID);
+        if (null != mCurrentRemoteControl) {
+            int categoryID  = mCurrentRemoteControl.getCategoryId();
+            int subCategoryID = mCurrentRemoteControl.getSubCategory();
+            String categoryName = mCurrentRemoteControl.getCategoryName();
+            String brandName = mCurrentRemoteControl.getBrandName();
+            String cityName = mCurrentRemoteControl.getCityName();
+            String operatorName = mCurrentRemoteControl.getOperatorName();
+            String remoteName = mCurrentRemoteControl.getRemote();
+            String remoteControlTitle;
+            Log.d(TAG, "showRemote, category = " + categoryID + ", subCategory = " + subCategoryID);
+            String binFileName = FileUtils.binDir + FileUtils.FILE_NAME_PREFIX +
+                    mCurrentRemoteControl.getRemoteMap() + FileUtils.FILE_NAME_EXT;
+
+            if (Constants.CategoryID.STB.getValue() == categoryID) {
+                remoteControlTitle = cityName + operatorName + categoryName + " - " + remoteName;
+            } else {
+                remoteControlTitle = brandName + categoryName + " - " + remoteName;
+            }
+            mTvControlTitle.setText(remoteControlTitle);
+            /* decode SDK - load binary file */
+            int ret = mPhoneRemote.irOpen(binFileName, categoryID, subCategoryID);
+            Log.d(TAG, "binary opened : " + ret);
+        }
+    }
+
+    public void closeIRBinary() {
+        mPhoneRemote.irClose();
+    }
+
+    private void onEmitterConnected() {
+        Log.d(TAG, "onEmitterConnected, set the status and button color in UI");
+        mBtnConnect.setImageDrawable(AppCompatResources.getDrawable(this, R.mipmap.button_unlink));
+        mVWConnectStatus.setBackgroundColor(Color.parseColor("#3FAFFF"));
+    }
+
+    private void onEmitterDisconnected() {
+        Log.d(TAG, "onEmitterDisconnected, set the status and button color in UI");
+        ToastUtils.showToast(this, getString(R.string.connect_disconnected), Toast.LENGTH_SHORT);
+        mBtnConnect.setImageDrawable(AppCompatResources.getDrawable(this, R.mipmap.button_link));
+        mVWConnectStatus.setBackgroundColor(Color.parseColor("#FF7F7F"));
+    }
+
+    private void processEHello(String response) {
+        mArduinoRemote.sendHelloToEmitter();
+    }
+
+    private void processEBin(String response) {
+        long currentRemoteId = getIntent().getLongExtra(KEY_REMOTE_ID, -1L);
+        Log.d(TAG, "processEBin: current remote ID = " + currentRemoteId);
+
+        RemoteControl currentRemoteControl = RemoteControl.getRemoteControl(currentRemoteId);
+        if (currentRemoteControl != null) {
+            Log.d(TAG, "processEBin, will send binary for remote control, id = " + currentRemoteId + 
+                  ", remoteControl.id = " + currentRemoteControl.getID() + 
+                  ", remoteControl.category = " + currentRemoteControl.getCategoryId());
+            
+            String binFileName = FileUtils.binDir + FileUtils.FILE_NAME_PREFIX +
+                    currentRemoteControl.getRemoteMap() + FileUtils.FILE_NAME_EXT;
+            byte []binContent = FileUtils.getByteArrayFromFile(binFileName);
+            if (null != binContent) {
+                mArduinoRemote.sendBinToEmitter(binContent, 
+                    currentRemoteControl.getCategoryId(), 
+                    currentRemoteControl.getSubCategory());
+            } else {
+                Log.e(TAG, "emitter sender could not open the binary file");
+                ToastUtils.showToast(this, getString(R.string.file_could_not_open), Toast.LENGTH_SHORT);
+            }
+        }
+    }
+
+    private void processECtrl(String response) {
+
+    }
+
+    private void processControlResult(String response) {
+        runOnUiThread(() -> {
+            if (response.startsWith(ArduinoRemote.E_INDICATION_SUCCESS)) {
+                ToastUtils.showToast(this, getString(R.string.decode_and_send_success), null);
+            } else {
+                ToastUtils.showToast(this, getString(R.string.decode_and_send_failed), null);
+            }
+        });
+    }
+
+    private void onEmitterResponse(String response) {
+        if (response.startsWith(ArduinoRemote.E_RESPONSE_HELLO)) {
+            processEHello(response);
+        } else if (response.startsWith(ArduinoRemote.E_RESPONSE_BIN)) {
+            processEBin(response);
+        } else if (response.startsWith(ArduinoRemote.E_RESPONSE_CTRL)) {
+            processECtrl(response);
+        } else if (response.startsWith(ArduinoRemote.E_INDICATION_SUCCESS) ||
+                   response.startsWith(ArduinoRemote.E_INDICATION_FAILED)) {
+            processControlResult(response);
+        } else {
+            Log.e(TAG, "unexpected response : " + response);
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        vibrate(this);
+        Remote remote = null;
+        int keyCode = 0;
+        int result = 0;
+        int id = v.getId();
+        if (id == R.id.iv_power) {
+            keyCode = Remote.KEY_POWER;
+        } else if (id == R.id.iv_up) {
+            keyCode = Remote.KEY_UP;
+        } else if (id == R.id.iv_down) {
+            keyCode = Remote.KEY_DOWN;
+        } else if (id == R.id.iv_left) {
+            keyCode = Remote.KEY_LEFT;
+        } else if (id == R.id.iv_right) {
+            keyCode = Remote.KEY_RIGHT;
+        } else if (id == R.id.iv_ok) {
+            keyCode = Remote.KEY_OK;
+        } else if (id == R.id.iv_plus) {
+            keyCode = Remote.KEY_PLUS;
+        } else if (id == R.id.iv_minus) {
+            keyCode = Remote.KEY_MINUS;
+        } else if (id == R.id.iv_back) {
+            keyCode = Remote.KEY_BACK;
+        } else if (id == R.id.iv_home) {
+            keyCode = Remote.KEY_HOME;
+        } else if (id == R.id.iv_menu) {
+            keyCode = Remote.KEY_MENU;
+        }
+
+        if (mArduinoRemote.getConnectionStatus() == ArduinoRemote.EMITTER_WORKING && mCurrentRemoteControl != null) {
+            mArduinoRemote.irControl(mCurrentRemoteControl.getCategoryId(), mCurrentRemoteControl.getSubCategory(), keyCode);
+        } else if (mCurrentRemoteControl != null){
+            result = mPhoneRemote.irControl(mCurrentRemoteControl.getCategoryId(), mCurrentRemoteControl.getSubCategory(), keyCode);
+            if (0 == result) {
+                ToastUtils.showToast(this, getString(R.string.decode_and_send_success), null);
+            } else {
+                ToastUtils.showToast(this, getString(R.string.decode_and_send_failed), null);
+            }
+        }
+    }
+
+    private static class MsgHandler extends Handler {
+
+        WeakReference<ControlActivity> mActivity;
+
+        MsgHandler(ControlActivity activity) {
+            super(Looper.getMainLooper());
+            mActivity = new WeakReference<>(activity);
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            int cmd = msg.getData().getInt(MessageUtils.KEY_CMD);
+
+            ControlActivity activity = mActivity.get();
+            if (activity != null && cmd == CMD_GET_REMOTE_CONTROL) {
+                activity.showRemote();
+            }
+        }
+    }
+
+    private static void vibrate(Context context) {
+        Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
+        vibrator.vibrate(VIB_TIME);
+    }
+}

android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java

@@ -1,318 +0,0 @@
-package net.irext.ircontrol.ui.fragment;
-
-import android.content.Context;
-import android.graphics.Color;
-import android.os.*;
-import android.provider.ContactsContract;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.*;
-
-import androidx.appcompat.content.res.AppCompatResources;
-import androidx.fragment.app.Fragment;
-import net.irext.decode.sdk.IRDecode;
-import net.irext.ircontrol.R;
-import net.irext.ircontrol.bean.RemoteControl;
-import net.irext.ircontrol.controller.ArduinoRemote;
-import net.irext.ircontrol.controller.PhoneRemote;
-import net.irext.ircontrol.controller.base.Remote;
-import net.irext.ircontrol.ui.activity.ControlActivity;
-import net.irext.ircontrol.utils.FileUtils;
-import net.irext.ircontrol.utils.MessageUtils;
-import net.irext.ircontrol.utils.MiscUtils;
-import net.irext.ircontrol.utils.ToastUtils;
-
-import java.lang.ref.WeakReference;
-
-/**
- * Filename:       ControlFragment.java
- * Revised:        Date: 2017-04-22
- * Revision:       Revision: 1.0
- * <p>
- * Description:    Control fragment containing control panel
- * <p>
- * Revision log:
- * 2017-04-22: created by strawmanbobi
- */
-@SuppressWarnings("unused")
-public class ControlFragment extends Fragment implements View.OnClickListener {
-
-    private static final String TAG = ControlFragment.class.getSimpleName();
-
-    private static final int VIB_TIME = 60;
-
-    private static final int CMD_GET_REMOTE_CONTROL = 0;
-
-    private PhoneRemote mPhoneRemote;
-    private ArduinoRemote mArduinoRemote;
-
-    private MsgHandler mHandler;
-
-    private ControlActivity mParent;
-    private Long mRemoteID;
-    private RemoteControl mCurrentRemoteControl;
-
-    private EditText mEtEmitterIp;
-    private ImageButton mBtnConnect;
-    private View mVWConnectStatus;
-
-    public ControlFragment() {
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-                             Bundle savedInstanceState) {
-
-        mHandler = new MsgHandler(this);
-
-        mParent = (ControlActivity)getActivity();
-        View view = inflater.inflate(R.layout.fragment_control, container, false);
-
-        ImageButton btnPower = view.findViewById(R.id.iv_power);
-        ImageButton btnBack = view.findViewById(R.id.iv_back);
-        ImageButton btnHome = view.findViewById(R.id.iv_home);
-        ImageButton btnMenu = view.findViewById(R.id.iv_menu);
-        ImageButton btnUp = view.findViewById(R.id.iv_up);
-        ImageButton btnDown = view.findViewById(R.id.iv_down);
-        ImageButton btnLeft = view.findViewById(R.id.iv_left);
-        ImageButton btnRight = view.findViewById(R.id.iv_right);
-        ImageButton btnOK = view.findViewById(R.id.iv_ok);
-        ImageButton btnPlus = view.findViewById(R.id.iv_plus);
-        ImageButton btnMinus = view.findViewById(R.id.iv_minus);
-
-        btnPower.setOnClickListener(this);
-        btnBack.setOnClickListener(this);
-        btnHome.setOnClickListener(this);
-        btnMenu.setOnClickListener(this);
-        btnUp.setOnClickListener(this);
-        btnDown.setOnClickListener(this);
-        btnLeft.setOnClickListener(this);
-        btnRight.setOnClickListener(this);
-        btnOK.setOnClickListener(this);
-        btnPlus.setOnClickListener(this);
-        btnMinus.setOnClickListener(this);
-
-        mPhoneRemote = PhoneRemote.getInstance(mParent);
-        mArduinoRemote = ArduinoRemote.getInstance(mParent, new ArduinoRemote.IRSocketEmitterCallback() {
-            @Override
-            public void onConnected() {
-                onEmitterConnected();
-            }
-
-            @Override
-            public void onDisconnected() {
-                onEmitterDisconnected();
-            }
-
-            @Override
-            public void onResponse(String response) {
-                onEmitterResponse(response);
-            }
-        });
-
-        mEtEmitterIp = view.findViewById(R.id.emitter_ip);
-        mBtnConnect = view.findViewById(R.id.btn_connect_emitter);
-        mVWConnectStatus = view.findViewById(R.id.vw_connect_status);
-
-        mBtnConnect.setOnClickListener(new View.OnClickListener() {
-
-            @Override
-            public void onClick(View v) {
-                vibrate(mParent);
-                String emitterIp = mEtEmitterIp.getText().toString();
-                if (!MiscUtils.isValidIPv4(emitterIp)) {
-                    Log.e(TAG, "IP address is invalid: " + emitterIp);
-                    ToastUtils.showToast(mParent, mParent.getString(R.string.input_emitter_ip_address), null);
-                    return;
-                }
-                mArduinoRemote.connectToEmitter(emitterIp, String.valueOf(ArduinoRemote.EMITTER_PORT));
-            }
-        });
-
-        return view;
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-
-        assert getArguments() != null;
-        mRemoteID  = getArguments().getLong(ControlActivity.KEY_REMOTE_ID, -1L);
-        if (-1 == mRemoteID) {
-            Log.d(TAG, "remote ID IS NULL");
-        } else {
-            getRemote();
-        }
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-        mArduinoRemote.disconnect();
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        mArduinoRemote.disconnect();
-    }
-
-    private void getRemote() {
-        new Thread() {
-            @Override
-            public void run() {
-                MessageUtils.postMessage(mHandler, CMD_GET_REMOTE_CONTROL);
-            }
-        }.start();
-    }
-
-    private void showRemote() {
-        mCurrentRemoteControl = RemoteControl.getRemoteControl(mRemoteID);
-        if (null != mCurrentRemoteControl) {
-            int category = mCurrentRemoteControl.getCategoryId();
-            String binFileName = FileUtils.binDir + FileUtils.FILE_NAME_PREFIX +
-                    mCurrentRemoteControl.getRemoteMap() + FileUtils.FILE_NAME_EXT;
-
-            /* decode SDK - load binary file */
-            int ret = mPhoneRemote.irOpen(binFileName, category, mCurrentRemoteControl.getSubCategory());
-            Log.d(TAG, "binary opened : " + ret);
-        }
-    }
-
-    public void closeIRBinary() {
-        mPhoneRemote.irClose();
-    }
-
-    private void onEmitterConnected() {
-        mParent.runOnUiThread(() -> {
-            Log.d(TAG, "onEmitterConnected, set the status and button color in UI");
-            mBtnConnect.setImageDrawable(AppCompatResources.getDrawable(mParent, R.mipmap.button_unlink));
-            mVWConnectStatus.setBackgroundColor(Color.parseColor("#3FAFFF"));
-        });
-    }
-    private void onEmitterDisconnected() {
-        mParent.runOnUiThread(() -> {
-            Log.d(TAG, "onEmitterConnected, set the status and button color in UI");
-            ToastUtils.showToast(mParent, mParent.getString(R.string.connect_disconnected), Toast.LENGTH_SHORT);
-            mBtnConnect.setImageDrawable(AppCompatResources.getDrawable(mParent, R.mipmap.button_link));
-            mVWConnectStatus.setBackgroundColor(Color.parseColor("#FF7F7F"));
-        });
-    }
-
-    private void processEHello(String response) {
-        mArduinoRemote.sendHelloToEmitter();
-    }
-
-    private void processEBin(String response) {
-        String binFileName = FileUtils.binDir + FileUtils.FILE_NAME_PREFIX +
-                mCurrentRemoteControl.getRemoteMap() + FileUtils.FILE_NAME_EXT;
-        byte []binContent = FileUtils.getByteArrayFromFile(binFileName);
-        if (null != binContent) {
-            mArduinoRemote.sendBinToEmitter(binContent, mCurrentRemoteControl.getCategoryId(), mCurrentRemoteControl.getSubCategory());
-        } else {
-            Log.e(TAG, "emitter sender could not open the binary file");
-            ToastUtils.showToast(mParent, mParent.getString(R.string.file_could_not_open), Toast.LENGTH_SHORT);
-        }
-    }
-
-    private void processECtrl(String response) {
-
-    }
-
-    private void processControlResult(String response) {
-        mParent.runOnUiThread(() -> {
-            if (response.startsWith(ArduinoRemote.E_INDICATION_SUCCESS)) {
-                ToastUtils.showToast(mParent, mParent.getString(R.string.decode_and_send_success), null);
-            } else {
-                ToastUtils.showToast(mParent, mParent.getString(R.string.decode_and_send_failed), null);
-            }
-        });
-    }
-
-    private void onEmitterResponse(String response) {
-        if (response.startsWith(ArduinoRemote.E_RESPONSE_HELLO)) {
-            processEHello(response);
-        } else if (response.startsWith(ArduinoRemote.E_RESPONSE_BIN)) {
-            processEBin(response);
-        } else if (response.startsWith(ArduinoRemote.E_RESPONSE_CTRL)) {
-            processECtrl(response);
-        } else if (response.startsWith(ArduinoRemote.E_INDICATION_SUCCESS) ||
-                   response.startsWith(ArduinoRemote.E_INDICATION_FAILED)) {
-            processControlResult(response);
-        } else {
-            Log.e(TAG, "unexpected response : " + response);
-        }
-    }
-
-    // control
-    @Override
-    public void onClick(View v) {
-        vibrate(mParent);
-        Remote remote = null;
-        int keyCode = 0;
-        int result = 0;
-        int id = v.getId();
-        if (id == R.id.iv_power) {
-            keyCode = Remote.KEY_POWER;
-        } else if (id == R.id.iv_up) {
-            keyCode = Remote.KEY_UP;
-        } else if (id == R.id.iv_down) {
-            keyCode = Remote.KEY_DOWN;
-        } else if (id == R.id.iv_left) {
-            keyCode = Remote.KEY_LEFT;
-        } else if (id == R.id.iv_right) {
-            keyCode = Remote.KEY_RIGHT;
-        } else if (id == R.id.iv_ok) {
-            keyCode = Remote.KEY_OK;
-        } else if (id == R.id.iv_plus) {
-            keyCode = Remote.KEY_PLUS;
-        } else if (id == R.id.iv_minus) {
-            keyCode = Remote.KEY_MINUS;
-        } else if (id == R.id.iv_back) {
-            keyCode = Remote.KEY_BACK;
-        } else if (id == R.id.iv_home) {
-            keyCode = Remote.KEY_HOME;
-        } else if (id == R.id.iv_menu) {
-            keyCode = Remote.KEY_MENU;
-        }
-
-        if (mArduinoRemote.getConnectionStatus() == ArduinoRemote.EMITTER_WORKING) {
-            mArduinoRemote.irControl(mCurrentRemoteControl.getCategoryId(), mCurrentRemoteControl.getSubCategory(), keyCode);
-        } else {
-            result = mPhoneRemote.irControl(mCurrentRemoteControl.getCategoryId(), mCurrentRemoteControl.getSubCategory(), keyCode);
-            if (0 == result) {
-                ToastUtils.showToast(mParent, mParent.getString(R.string.decode_and_send_success), null);
-            } else {
-                ToastUtils.showToast(mParent, mParent.getString(R.string.decode_and_send_failed), null);
-            }
-        }
-    }
-
-    private static class MsgHandler extends Handler {
-
-        WeakReference<ControlFragment> mMainFragment;
-
-        MsgHandler(ControlFragment fragment) {
-            super(Looper.getMainLooper());
-            mMainFragment = new WeakReference<>(fragment);
-        }
-
-        @Override
-        public void handleMessage(Message msg) {
-            int cmd = msg.getData().getInt(MessageUtils.KEY_CMD);
-
-            ControlFragment controlFragment = mMainFragment.get();
-            if (cmd == CMD_GET_REMOTE_CONTROL) {
-                controlFragment.showRemote();
-            }
-        }
-    }
-
-    // vibrate on button click in this fragment
-    private static void vibrate(Context context) {
-        Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
-        vibrator.vibrate(VIB_TIME);
-    }
-}

android-example/app/src/main/res/layout/activity_control.xml

@@ -3,7 +3,6 @@
         xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
         xmlns:app="http://schemas.android.com/apk/res-auto"
-        android:id="@+id/rl_main_layout"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:paddingLeft="@dimen/activity_horizontal_margin"
@@ -14,4 +13,293 @@
         android:fitsSystemWindows="true"
         tools:context="net.irext.ircontrol.ui.activity.ControlActivity">
 
-</RelativeLayout>
+    <LinearLayout
+            android:id="@+id/ll_control_title"
+            android:layout_width="match_parent"
+            android:layout_height="60dp"
+            android:orientation="vertical">
+        <TextView
+            android:id="@+id/tv_control_title"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:paddingStart="8dp"
+            android:paddingEnd="8dp"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold"
+            android:singleLine="false"/>
+    </LinearLayout>
+    <LinearLayout
+            android:id="@+id/ll_control_panel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/ll_control_title"
+            android:orientation="vertical">
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:padding="8dp"
+                android:orientation="horizontal">
+            <ImageButton
+                    android:id="@+id/iv_power"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_power"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:contentDescription="@string/button_power"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    android:scaleType="fitCenter"
+                    style="?android:buttonBarButtonStyle"/>
+        </LinearLayout>
+        <View
+                android:layout_width="match_parent"
+                android:layout_height="1dp"
+                android:layout_margin="4dp"
+                android:background="#7F7F7F" />
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp"
+                android:orientation="horizontal">
+            <ImageButton
+                    android:id="@+id/iv_back"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_back"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_back"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <ImageButton
+                    android:id="@+id/iv_home"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_home"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_home"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <ImageButton
+                    android:id="@+id/iv_menu"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_menu"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_menu"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+        </LinearLayout>
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp"
+                android:orientation="horizontal">
+            <TextView
+                    android:id="@+id/tv_empty_top_left"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:layout_weight="1"/>
+            <ImageButton
+                    android:id="@+id/iv_up"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_up"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_up"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <TextView
+                    android:id="@+id/tv_empty_top_right"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:layout_weight="1"/>
+        </LinearLayout>
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp"
+                android:orientation="horizontal">
+            <ImageButton
+                    android:id="@+id/iv_left"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_left"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_left"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <ImageButton
+                    android:id="@+id/iv_ok"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_ok"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_ok"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <ImageButton
+                    android:id="@+id/iv_right"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_right"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_right"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+        </LinearLayout>
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp"
+                android:orientation="horizontal">
+            <TextView
+                    android:id="@+id/tv_empty_bottom_left"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:layout_weight="1"/>
+            <ImageButton
+                    android:id="@+id/iv_down"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_down"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_down"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <TextView
+                    android:id="@+id/tv_empty_bottom_right"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:layout_weight="1"/>
+        </LinearLayout>
+
+        <View
+                android:layout_width="match_parent"
+                android:layout_height="1dp"
+                android:layout_margin="4dp"
+                android:background="#7F7F7F" />
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="8dp"
+                android:orientation="horizontal">
+            <ImageButton
+                    android:id="@+id/iv_minus"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_minus"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_minus"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+            <TextView
+                    android:id="@+id/tv_empty_center"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:layout_weight="1"/>
+            <ImageButton
+                    android:id="@+id/iv_plus"
+                    android:layout_width="match_parent"
+                    android:layout_height="64dp"
+                    android:src="@mipmap/button_plus"
+                    android:paddingTop="16dp"
+                    android:paddingBottom="16dp"
+                    android:layout_weight="1"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/button_plus"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+        </LinearLayout>
+    </LinearLayout>
+    <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:layout_alignParentBottom="true">
+        <View
+                android:id="@+id/vw_connect_status"
+                android:layout_width="match_parent"
+                android:layout_height="2dp"
+                android:layout_margin="4dp"
+                android:background="#FF3F3F"/>
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:layout_marginBottom="2dp"
+                android:layout_marginStart="20dp"
+                android:layout_marginEnd="20dp"
+                tools:ignore="UselessParent">
+            <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="60dp"
+                    android:gravity="center_vertical"
+                    android:textSize="18sp"
+                    android:paddingStart="8dp"
+                    android:paddingEnd="8dp"
+                    android:text="@string/emitter_ip">
+            </TextView>
+            <EditText
+                    android:id="@+id/emitter_ip"
+                    android:layout_width="0dp"
+                    android:autofillHints=""
+                    android:gravity="center_vertical"
+                    android:textSize="18sp"
+                    android:inputType="text"
+                    android:text="@string/default_ip"
+                    android:layout_height="60dp"
+                    android:layout_weight="1">
+            </EditText>
+            <ImageButton
+                    android:id="@+id/btn_connect_emitter"
+                    android:layout_width="60dp"
+                    android:layout_height="60dp"
+                    android:padding="12dp"
+                    android:src="@mipmap/button_link"
+                    android:scaleType="fitCenter"
+                    android:contentDescription="@string/connect"
+                    android:stateListAnimator="@animator/button_elevation_anim"
+                    style="?android:buttonBarButtonStyle"/>
+        </LinearLayout>
+        <View
+                android:layout_width="match_parent"
+                android:layout_height="1dp"
+                android:layout_margin="4dp"
+                android:background="#7F7F7F"/>
+    </LinearLayout>
+
+</RelativeLayout>

android-example/app/src/main/res/layout/fragment_control.xml

@@ -1,281 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout
-        xmlns:tools="http://schemas.android.com/tools" android:id="@+id/sv_control"
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-    <LinearLayout
-            android:id="@+id/ll_control_panel"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="vertical">
-
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:gravity="center"
-                android:padding="8dp"
-                android:orientation="horizontal">
-            <ImageButton
-                    android:id="@+id/iv_power"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_power"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:contentDescription="@string/button_power"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    android:scaleType="fitCenter"
-                    style="?android:buttonBarButtonStyle"/>
-        </LinearLayout>
-        <View
-                android:layout_width="match_parent"
-                android:layout_height="1dp"
-                android:layout_margin="4dp"
-                android:background="#7F7F7F" />
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:padding="8dp"
-                android:orientation="horizontal">
-            <ImageButton
-                    android:id="@+id/iv_back"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_back"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_back"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <ImageButton
-                    android:id="@+id/iv_home"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_home"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_home"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <ImageButton
-                    android:id="@+id/iv_menu"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_menu"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_menu"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-        </LinearLayout>
-
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:padding="8dp"
-                android:orientation="horizontal">
-            <TextView
-                    android:id="@+id/tv_empty_top_left"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:layout_weight="1"/>
-            <ImageButton
-                    android:id="@+id/iv_up"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_up"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_up"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <TextView
-                    android:id="@+id/tv_empty_top_right"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:layout_weight="1"/>
-        </LinearLayout>
-
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:padding="8dp"
-                android:orientation="horizontal">
-            <ImageButton
-                    android:id="@+id/iv_left"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_left"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_left"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <ImageButton
-                    android:id="@+id/iv_ok"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_ok"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_ok"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <ImageButton
-                    android:id="@+id/iv_right"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_right"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_right"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-        </LinearLayout>
-
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:padding="8dp"
-                android:orientation="horizontal">
-            <TextView
-                    android:id="@+id/tv_empty_bottom_left"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:layout_weight="1"/>
-            <ImageButton
-                    android:id="@+id/iv_down"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_down"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_down"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <TextView
-                    android:id="@+id/tv_empty_bottom_right"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:layout_weight="1"/>
-        </LinearLayout>
-
-        <View
-                android:layout_width="match_parent"
-                android:layout_height="1dp"
-                android:layout_margin="4dp"
-                android:background="#7F7F7F" />
-
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:padding="8dp"
-                android:orientation="horizontal">
-            <ImageButton
-                    android:id="@+id/iv_minus"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_minus"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_minus"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-            <TextView
-                    android:id="@+id/tv_empty_center"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:layout_weight="1"/>
-            <ImageButton
-                    android:id="@+id/iv_plus"
-                    android:layout_width="match_parent"
-                    android:layout_height="64dp"
-                    android:src="@mipmap/button_plus"
-                    android:paddingTop="16dp"
-                    android:paddingBottom="16dp"
-                    android:layout_weight="1"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/button_plus"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-        </LinearLayout>
-    </LinearLayout>
-    <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="vertical"
-            android:layout_alignParentBottom="true">
-        <View
-                android:id="@+id/vw_connect_status"
-                android:layout_width="match_parent"
-                android:layout_height="2dp"
-                android:layout_margin="4dp"
-                android:background="#FF3F3F"/>
-        <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal"
-                android:layout_marginBottom="2dp"
-                android:layout_marginStart="20dp"
-                android:layout_marginEnd="20dp"
-                tools:ignore="UselessParent">
-            <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="60dp"
-                    android:gravity="center_vertical"
-                    android:textSize="18sp"
-                    android:paddingStart="8dp"
-                    android:paddingEnd="8dp"
-                    android:text="@string/emitter_ip">
-            </TextView>
-            <EditText
-                    android:id="@+id/emitter_ip"
-                    android:layout_width="0dp"
-                    android:autofillHints=""
-                    android:gravity="center_vertical"
-                    android:textSize="18sp"
-                    android:inputType="text"
-                    android:text="@string/default_ip"
-                    android:layout_height="60dp"
-                    android:layout_weight="1">
-            </EditText>
-            <ImageButton
-                    android:id="@+id/btn_connect_emitter"
-                    android:layout_width="60dp"
-                    android:layout_height="60dp"
-                    android:padding="12dp"
-                    android:src="@mipmap/button_link"
-                    android:scaleType="fitCenter"
-                    android:contentDescription="@string/connect"
-                    android:stateListAnimator="@animator/button_elevation_anim"
-                    style="?android:buttonBarButtonStyle"/>
-        </LinearLayout>
-        <View
-                android:layout_width="match_parent"
-                android:layout_height="1dp"
-                android:layout_margin="4dp"
-                android:background="#7F7F7F"/>
-    </LinearLayout>
-
-</RelativeLayout>