Android(安卓)Handler内存泄漏解决方法

Android Context内存泄漏的情况很多，有兴趣可阅读以下文章：

Android学习系列(36)--App调试内存泄露之Context篇(上)

Android学习系列(37)--App调试内存泄露之Context篇(下)

下面是关于Handler内存泄漏的一种解决方法：

1、将Handler声明为静态类；

2、在Handler中增加一个对Activity的弱引用（WeakReference）；

具体实现如下：

public class MyActivity extends Activity {private Handler mHandler = null;private final static int MSG_SECCESS = 1;private final static int MSG_FAILED = 2;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);mHandler = new ActivityHandler(this);}private static class ActivityHandler extends Handler {private WeakReference<Activity> activityWeakReference = null;public ActivityHandler(Activity activity) {activityWeakReference = new WeakReference<Activity>(activity);}@Overridepublic void handleMessage(Message msg) {// TODO Auto-generated method stubMyActivity activity = (MyActivity) activityWeakReference.get();if (activity != null){switch(msg.what) {case MSG_SECCESS:break;case MSG_FAILED:break;default:break;}}}}}

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