我有一个进度对话框,我需要关闭它并结束应用程序。我现在的做法是:
new AlertDialog.Builder(MainActivity.this)
.setMessage("There has been a problem.")
.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
dialog.dismiss();
finish();
}
}).show();
然而,我总是遇到这个著名的错误:
Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@48189240 is not valid; is your activity running?
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.view.ViewRoot.setView(ViewRoot.java:505)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:200)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:114)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.view.Window$LocalWindowManager.addView(Window.java:424)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.app.Dialog.show(Dialog.java:241)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.app.ProgressDialog.show(ProgressDialog.java:107)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.app.ProgressDialog.show(ProgressDialog.java:90)
05-23 16:56:44.573: ERROR/AndroidRuntime(2494): at android.app.ProgressDialog.show(ProgressDialog.java:85)
我怎样才能无误地解除它?我这样做对吗?
非常感谢您的帮助。
编辑:我可以完美地显示它,即使在解除它时,用户也看不到任何问题,但是在我的LogCat中,我可以看到那个讨厌的错误。