LeakCanary

监测应用内存泄露的轻量级工具，方便集成，简洁清晰。

LeakCanary简单集成：

在build.gradle中加入对应依赖：

 dependencies {
              debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
               releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
 }

在Application的onCreate方法中加入 LeakCanary.install(this)：

 public class ExampleApplication extends Application {
            @Override 
            public void onCreate() {
                          super.onCreate();
                          LeakCanary.install(this);
              }
    }

Hander导致的内存泄漏解决

           public class SampleActivity extends Activity {

                     private static class MyHandler extends Handler {
                             private final WeakReference<SampleActivity> mActivity;

                             public MyHandler(SampleActivity activity) {
                                    mActivity = new WeakReference<SampleActivity>(activity);
                             }

                             @Override
                             public void handleMessage(Message msg) {
                                   SampleActivity activity = mActivity.get();
                                   if (activity != null) {
                                                      // ...
                                        }
                              }
                     }
      
                     private final MyHandler mHandler = new MyHandler(this);

                     private static final Runnable sRunnable = new Runnable() {
                                      @Override
                                      public void run() { /* ... */ }
                     };

                     @Override
                     protected void onCreate(Bundle savedInstanceState) {
                             super.onCreate(savedInstanceState);

                             mHandler.postDelayed(sRunnable, 1000 * 60 * 10);
                      }
            }