相关疑难解决方法(0)

我有一个启动AsyncTask的活动,并显示操作持续时间的进度对话框.声明活动不会通过旋转或键盘滑动重新创建.

    <activity android:name=".MyActivity" 
              android:label="@string/app_name"
              android:configChanges="keyboardHidden|orientation"
              >
        <intent-filter>
        </intent-filter>
    </activity>

任务完成后,我会忽略对话框,但在某些手机上(框架:1.5,1.6)会抛出这样的错误:

java.lang.IllegalArgumentException: View not attached to window manager
    at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:356)
    at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:201)
    at android.view.Window$LocalWindowManager.removeView(Window.java:400)
    at android.app.Dialog.dismissDialog(Dialog.java:268)
    at android.app.Dialog.access$000(Dialog.java:69)
    at android.app.Dialog$1.run(Dialog.java:103)
    at android.app.Dialog.dismiss(Dialog.java:252)
    at xxx.onPostExecute(xxx$1.java:xxx)

我的代码是:

final Dialog dialog = new AlertDialog.Builder(context)
    .setTitle("Processing...")
    .setCancelable(true)
    .create();

final AsyncTask<MyParams, Object, MyResult> task = new AsyncTask<MyParams, Object, MyResult>() {

    @Override
    protected MyResult doInBackground(MyParams... params) {
        // Long operation goes here
    }

    @Override
    protected void onPostExecute(MyResult result) {
        dialog.dismiss();
        onCompletion(result);
    }
};

task.execute(...);

dialog.setOnCancelListener(new OnCancelListener() { …

我从客户端远程获取以下内容,因此我不知道他们正在使用什么硬件等.

java.lang.IllegalArgumentException: View not attached to window manager
       at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:355)
       at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:200)
       at android.view.Window$LocalWindowManager.removeView(Window.java:417)
       at android.app.Dialog.dismissDialog(Dialog.java:279)
       at android.app.Dialog.access$000(Dialog.java:72)
       at android.app.Dialog$1.run(Dialog.java:108)
       at android.app.Dialog.dismiss(Dialog.java:263)
       at com..mysite.android.ActivityGame$1.onFinish(ActivityGame.java:154)
       at android.os.CountDownTimer$1.handleMessage(CountDownTimer.java:118)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loop(Looper.java:123)
       at android.app.ActivityThread.main(ActivityThread.java:4203)
       at java.lang.reflect.Method.invokeNative(Native Method)
       at java.lang.reflect.Method.invoke(Method.java:521)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:799)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)

这是因为ProgressDialog而发生的

    progressDialog = new ProgressDialog( this );
    progressDialog.setMessage(getString(R.string.get_ready));
    progressDialog.setCancelable(false);
    progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
    progressDialog.setMax(12);
    progressDialog.show();

    new CountDownTimer(3000, 250) {

         @Override
        public void onTick(long millisUntilFinished) {
             //progressDialog.incrementProgressBy(1);
         }

         @Override
        public void onFinish() {
             progressDialog.dismiss(); //********* ERROR HAPPENS HERE *********
             nextQuestion();
         }
    }.start();

活动在清单中看起来像这样. …