（Activity） has leaked window that was originally added

1、Activity has leaked window that was originally added（以解决） 【转】  

2011-11-04 14:54:46|  分类：android 常见错误 |  标签：|字号大中小 订阅

在编写Android程序的时候，遇到一个隐藏性问题。仔细查看LogCat，错误信息如下：

10-31 13:03:34.549: ERROR/WindowManager(444): Activity com.iqiwu.android.NoticeActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@437d1570 that was originally added here

10-31 13:03:34.549: ERROR/WindowManager(444): android.view.WindowLeaked: Activity com.iqiwu.android.NoticeActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@437d1570 that was originally added here

10-31 13:03:34.549: ERROR/WindowManager(444): at android.view.ViewRoot.<init>(ViewRoot.java:214)

10-31 13:03:34.549: ERROR/WindowManager(444): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)

10-31 13:03:34.549: ERROR/WindowManager(444): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)

10-31 13:03:34.549: ERROR/WindowManager(444): at android.view.Window$LocalWindowManager.addView(Window.java:409)

10-31 13:03:34.549: ERROR/WindowManager(444): at android.app.Dialog.show(Dialog.java:238)

10-31 13:03:34.549: ERROR/WindowManager(444): at android.app.AlertDialog$Builder.show(AlertDialog.java:802)

10-31 13:03:34.549: ERROR/WindowManager(444): atcom.iqiwu.android.NoticeActivity.setAlarmNotice(NoticeActivity.java:139)

10-31 13:03:34.549: ERROR/WindowManager(444): atcom.iqiwu.android.NoticeActivity.onCreate(NoticeActivity.java:68)

10-31 13:03:34.549: ERROR/WindowManager(444): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)

……

从错误提示中可以看出，错误产生过程如下：NoticeActivity.onCreate -> NoticeActivity.setAlarmNotice -> AlertDialog$Builder.show，于是发现错误，在关闭Activity的时候，没有关闭AlertDialog！！！

解决方法：

我们知道，在关闭Activity的时候，Activity会调用自己的onPause函数，只要在这里关闭AlertDialog就可以啦！！！至于怎么关闭，其实很简单，调用AlertDialog.dismiss();就可以了。O(∩_∩)o 哈哈。

2、has leaked window android.widget.TextView that was originally added 错误 

当使用WindowManager 的addView添加界面时，

在释放时，需要调用removeView，否则会出现

has leaked window android.widget.TextView that was originally added  内在泄露错误

如下示例

private WindowManager mWindowManager ;

private TextView mDialogText  ;

public void onCreate(Bundle savedInstanceState) {

TextView mDialogText = (TextView) LayoutInflater.from(this).inflate(R.layout.device_list_position, null); 

WindowManager mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);

    WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT,
    WindowManager.LayoutParams.TYPE_APPLICATION,
    WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
    | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
    PixelFormat.TRANSLUCENT);
    mWindowManager.addView(mDialogText, lp);

    indexBar.setTextView(mDialogText);

}

public void onDestroy(Bundle savedInstanceState) {

mWindowManager.removeView(mDialogText);

}