diff --git a/Android/decodesdk/src/main/java/net/irext/decodesdk/IRDecode.java b/Android/decodesdk/src/main/java/net/irext/decodesdk/IRDecode.java
index 501e794..792f705 100644
--- a/Android/decodesdk/src/main/java/net/irext/decodesdk/IRDecode.java
+++ b/Android/decodesdk/src/main/java/net/irext/decodesdk/IRDecode.java
@@ -47,6 +47,12 @@ public class IRDecode {
         return mInstance;
     }
 
+    private IRDecode() {
+        String libPath = "/develop/irext/core/src/ir_decoder/cmake-build-debug/libirda_decoder.so";
+        System.out.println("loading decode library " + libPath);
+        System.load(libPath);
+    }
+
     public int openFile(int category, int subCate, String fileName) {
         return irOpen(category, subCate, fileName);
     }
@@ -56,6 +62,9 @@ public class IRDecode {
     }
 
     public int[] decodeBinary(int keyCode, ACStatus acStatus, int changeWindDir) {
+        if (null == acStatus) {
+            acStatus = new ACStatus();
+        }
         return irDecode(keyCode, acStatus, changeWindDir);
     }
 
diff --git a/Android/decodesdk/src/main/java/net/irext/decodesdk/bean/ACStatus.java b/Android/decodesdk/src/main/java/net/irext/decodesdk/bean/ACStatus.java
index 6869c0a..076fe5d 100644
--- a/Android/decodesdk/src/main/java/net/irext/decodesdk/bean/ACStatus.java
+++ b/Android/decodesdk/src/main/java/net/irext/decodesdk/bean/ACStatus.java
@@ -1,5 +1,7 @@
 package net.irext.decodesdk.bean;
 
+import net.irext.decodesdk.utils.Constants;
+
 /**
  * Filename:       ACStatus.java
  * Revised:        Date: 2017-03-28
@@ -24,6 +26,14 @@ public class ACStatus {
     private int acTimer;
 
     public ACStatus() {
+        this.acPower = Constants.ACPower.POWER_OFF.getValue();
+        this.acMode = Constants.ACMode.MODE_AUTO.getValue();
+        this.acTemp = Constants.ACTemperature.TEMP_24.getValue();
+        this.acWindSpeed = Constants.ACWindSpeed.SPEED_AUTO.getValue();
+        this.acWindDir = Constants.ACSwing.SWING_ON.getValue();
+        this.acTimer = 0;
+        this.acDisplay = 0;
+        this.acSleep = 0;
     }
 
     public ACStatus(int acPower, int acMode, int acTemp, int acWindSpeed, int acWindDir,
@@ -101,4 +111,5 @@ public class ACStatus {
     public void setAcTimer(int acTimer) {
         this.acTimer = acTimer;
     }
+
 }