fixed android example

android-example/decodesdk/build.gradle

@@ -2,7 +2,6 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 27
-    buildToolsVersion '27.0.3'
 
     defaultConfig {
         minSdkVersion 19

android-example/decodesdk/src/main/java/net/irext/decode/sdk/IRDecode.java

@@ -18,6 +18,10 @@ public class IRDecode {
 
     private static final String TAG = IRDecode.class.getSimpleName();
 
+    static {
+        System.loadLibrary("irdecode");
+    }
+
     private static Object mSync = new Object();
 
     private native int irOpen(int category, int subCate, String fileName);
@@ -47,12 +51,6 @@ public class IRDecode {
         return mInstance;
     }
 
-    private IRDecode() {
-        String libPath = "/data/irext/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);
     }