diff --git a/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java b/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java
index 09af0f4..f69b5f1 100644
--- a/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java
+++ b/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java
@@ -205,6 +205,7 @@ public class ControlFragment extends Fragment implements View.OnClickListener {
             acStatus.setAcTemp(Constants.ACTemperature.TEMP_24.getValue());
             acStatus.setAcWindSpeed(Constants.ACWindSpeed.SPEED_AUTO.getValue());
             acStatus.setAcWindDir(Constants.ACSwing.SWING_ON.getValue());
+            acStatus.setChangeWindDir(0);
             acStatus.setAcDisplay(0);
             acStatus.setAcTimer(0);
             acStatus.setAcSleep(0);
@@ -250,7 +251,7 @@ public class ControlFragment extends Fragment implements View.OnClickListener {
         /* translate key code for AC according to the mapping above */
         /* ac status is useless for decoding devices other than AC, it's an optional parameter */
         /* change wind dir is an optional parameter, set to 0 as default */
-        return mIRDecode.decodeBinary(inputKeyCode, acStatus, 0);
+        return mIRDecode.decodeBinary(inputKeyCode, acStatus);
     }
 
     private void onEmitterConnected() {
diff --git a/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so b/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so
old mode 100644
new mode 100755
index 234e4df..6d80e94
Binary files a/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so and b/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so differ
diff --git a/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so b/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so
old mode 100644
new mode 100755
index b043552..bf800e2
Binary files a/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so and b/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so differ
diff --git a/android-example/app/src/main/jniLibs/x86/libirdecode.so b/android-example/app/src/main/jniLibs/x86/libirdecode.so
old mode 100644
new mode 100755
index aff802f..61cbe7a
Binary files a/android-example/app/src/main/jniLibs/x86/libirdecode.so and b/android-example/app/src/main/jniLibs/x86/libirdecode.so differ
diff --git a/android-example/app/src/main/jniLibs/x86_64/libirdecode.so b/android-example/app/src/main/jniLibs/x86_64/libirdecode.so
old mode 100644
new mode 100755
index 13ed693..427ada0
Binary files a/android-example/app/src/main/jniLibs/x86_64/libirdecode.so and b/android-example/app/src/main/jniLibs/x86_64/libirdecode.so differ
diff --git a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java
index c75609d..15bd6b0 100644
--- a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java
+++ b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java
@@ -4,7 +4,6 @@ import net.irext.decode.sdk.bean.ACStatus;
 import net.irext.decode.sdk.bean.TemperatureRange;
 import net.irext.decode.sdk.utils.Constants;
 
-
 /**
  * Filename:       IRDecode.java
  * Revised:        Date: 2017-04-22
@@ -31,7 +30,7 @@ public class IRDecode {
 
     private native int irOpenBinary(int category, int subCate, byte[] binaries, int binLength);
 
-    private native int[] irDecode(int keyCode, ACStatus acStatus, int changeWindDirection);
+    private native int[] irDecode(int keyCode, ACStatus acStatus);
 
     private native void irClose();
 
@@ -46,7 +45,6 @@ public class IRDecode {
     private native int irACGetSupportedWindDirection(int acMode);
 
     private static IRDecode mInstance;
-
     public static IRDecode getInstance() {
         if (null == mInstance) {
             mInstance = new IRDecode();
@@ -66,17 +64,17 @@ public class IRDecode {
         return irOpenBinary(category, subCate, binaries, binLength);
     }
 
-    public int[] decodeBinary(int keyCode, ACStatus acStatus, int changeWindDir) {
+    public int[] decodeBinary(int keyCode, ACStatus acStatus) {
         int []decoded;
         synchronized (mSync) {
             if (null == acStatus) {
                 acStatus = new ACStatus();
             }
             // validate ac status
-            if (!validateAcStatus(acStatus, keyCode, changeWindDir)) {
+            if (!validateAcStatus(acStatus, keyCode)) {
                 return new int[0];
             }
-            decoded = irDecode(keyCode, acStatus, changeWindDir);
+            decoded = irDecode(keyCode, acStatus);
         }
         return decoded;
     }
@@ -129,7 +127,7 @@ public class IRDecode {
         return irACGetSupportedWindDirection(acMode);
     }
 
-    private boolean validateAcStatus(ACStatus acStatus, int keyCode, int changeWindDir) {
+    private boolean validateAcStatus(ACStatus acStatus, int keyCode) {
         if (acStatus.getAcPower() != Constants.ACPower.POWER_ON.getValue() &&
             acStatus.getAcPower() != Constants.ACPower.POWER_OFF.getValue()) {
             return false;
@@ -150,7 +148,7 @@ public class IRDecode {
                 acStatus.getAcWindDir() > Constants.ACSwing.SWING_OFF.getValue()) {
             return false;
         }
-        if (changeWindDir != 0 && changeWindDir != 1) {
+        if (acStatus.getChangeWindDir() != 0 && acStatus.getChangeWindDir() != 1) {
             return false;
         }
         return true;
diff --git a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/bean/ACStatus.java b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/bean/ACStatus.java
index 9756e59..4aa6080 100644
--- a/android-example/decodesdk/src/main/java/net/irext/decode/sdk/bean/ACStatus.java
+++ b/android-example/decodesdk/src/main/java/net/irext/decode/sdk/bean/ACStatus.java
@@ -24,6 +24,7 @@ public class ACStatus {
     private int acDisplay;
     private int acSleep;
     private int acTimer;
+    private int changeWindDir;
 
     public ACStatus() {
         this.acPower = Constants.ACPower.POWER_OFF.getValue();
@@ -34,10 +35,11 @@ public class ACStatus {
         this.acTimer = 0;
         this.acDisplay = 0;
         this.acSleep = 0;
+        this.changeWindDir = 0;
     }
 
     public ACStatus(int acPower, int acMode, int acTemp, int acWindSpeed, int acWindDir,
-                    int acDisplay, int acSleep, int acTimer) {
+                    int acDisplay, int acSleep, int acTimer, int changeWindDir) {
         this.acPower = acPower;
         this.acTemp = acTemp;
         this.acMode = acMode;
@@ -46,6 +48,7 @@ public class ACStatus {
         this.acDisplay = acDisplay;
         this.acSleep = acSleep;
         this.acTimer = acTimer;
+        this.changeWindDir = changeWindDir;
     }
 
     public int getAcPower() {
@@ -112,4 +115,11 @@ public class ACStatus {
         this.acTimer = acTimer;
     }
 
+    public int getChangeWindDir() {
+        return changeWindDir;
+    }
+
+    public void setChangeWindDir(int changeWindDir) {
+        this.changeWindDir = changeWindDir;
+    }
 }