在屏幕旋转后，ProgreeDialog出现leaked window com.android.internal的错误

在程序起始的时候，acticity启动一个线程去请求部分数据，这时在ui层，弹出一个进度条，正常情况下没有什么问题，但是当在线程没有运行结束，ProgressDialog还在show的时候，在log中会出现错误如下：

E/WindowManager(  244): Activity MyAct has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b7150 that was originally added here
E/WindowManager(  244): android.view.WindowLeaked: Activity MyAct has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b7150 that was originally added here
E/WindowManager(  244):     at android.view.ViewRoot.<init>(ViewRoot.java:178)
E/WindowManager(  244):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:147)
E/WindowManager(  244):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:90)
E/WindowManager(  244):     at android.view.Window$LocalWindowManager.addView(Window.java:393)
E/WindowManager(  244):     at android.app.Dialog.show(Dialog.java:212)
E/WindowManager(  244):     at android.app.ProgressDialog.show(ProgressDialog.java:103)
E/WindowManager(  244):     at android.app.ProgressDialog.show(ProgressDialog.java:91)
E/WindowManager(  244):     at MyAct.send(MyAct.java:294)
E/WindowManager(  244):     at MyAct$4.onClick(MyAct.java:174)
E/WindowManager(  244):     at android.view.View.performClick(View.java:2129)
E/WindowManager(  244):     at android.view.View.onTouchEvent(View.java:3543)
E/WindowManager(  244):     at android.widget.TextView.onTouchEvent(TextView.java:4664)
E/WindowManager(  244):     at android.view.View.dispatchTouchEvent(View.java:3198)
E/WindowManager(  244):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:857)
E/WindowManager(  244):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:857)
E/WindowManager(  244):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:857)
E/WindowManager(  244):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:857)
E/WindowManager(  244):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:857)
E/WindowManager(  244):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1593)
E/WindowManager(  244):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1089)
E/WindowManager(  244):     at android.app.Activity.dispatchTouchEvent(Activity.java:1871)
E/WindowManager(  244):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1577)
E/WindowManager(  244):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1140)
E/WindowManager(  244):     at android.os.Handler.dispatchMessage(Handler.java:88)
E/WindowManager(  244):     at android.os.Looper.loop(Looper.java:123)
E/WindowManager(  244):     at android.app.ActivityThread.main(ActivityThread.java:3739)
E/WindowManager(  244):     at java.lang.reflect.Method.invokeNative(Native Method)
E/WindowManager(  244):     at java.lang.reflect.Method.invoke(Method.java:515)
E/WindowManager(  244):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
E/WindowManager(  244):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:497)
E/WindowManager(  244):     at dalvik.system.NativeStart.main(Native Method)

我做了一个简单的代码如下：

public class MyAct extends Activity implements Runnable {
    public ProgressDialog mProgress;

    // UI has a button that when pressed calls send

    public void send() {
         mProgress = ProgressDialog.show(this, "Please wait", 
                      "Please wait", 
                      true, true);
        Thread thread = new Thread(this);
        thread.start();
    }

    public void run() {
        Thread.sleep(10000);
        Message msg = new Message();
        mHandler.sendMessage(msg);
    }

    private final Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            mProgress.dismiss();
        }
    };
}

问题解决了。

主要是由于在屏幕旋转的时候，view发生改变，而另一个进程还在尝试改变老的视图，去掉diaolog.

我用两个方式，都比较简单：
1.是在配置文件中忽略横竖屏旋转。

android:configChanges="orientation|keyboardHidden"

2.是在OnPause的时候对progressDialog进行处理：

protected void onPause() {
        super.onPause();
        if ((mProgress != null) && mProgress.isShowing()) {
            mProgress.dismiss();
        }
    }

原文地址： http://www.dewen.org/q/3334/%E5%9C%A8%E5%B1%8F%E5%B9%95%E6%97%8B%E8%BD%AC%E5%90%8E%EF%BC%8CProgreeDialog%E5%87%BA%E7%8E%B0leaked+window+com.android.internal%E7%9A%84%E9%94%99%E8%AF%AF