Question

我有一个应用程序在重启时崩溃，因为它会立即显示一个对话框。这只发生在我重启设备时（应用程序有一个Boot接收器），否则，只需自己启动应用程序，它就可以正常工作。该对话框由主活动调用。这是代码：

public class AssistekAlertDialog extends Dialog {

    @Override
public void onAttachedToWindow() {
    getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
    ///Exception^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

    KeyguardManager manager = (KeyguardManager)con.getSystemService(Context.KEYGUARD_SERVICE);

    KeyguardManager.KeyguardLock keylock = manager.newKeyguardLock(Context.KEYGUARD_SERVICE);
    keylock.disableKeyguard();

    super.onAttachedToWindow();
}
}

这是logcat：

03-05 15:38:08.292: E/AndroidRuntime(1505): FATAL EXCEPTION: main
03-05 15:38:08.292: E/AndroidRuntime(1505): java.lang.IllegalArgumentException: View not attached to window manager
03-05 15:38:08.292: E/AndroidRuntime(1505):     at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:383)
03-05 15:38:08.292: E/AndroidRuntime(1505):     at android.view.WindowManagerGlobal.updateViewLayout(WindowManagerGlobal.java:272)
03-05 15:38:08.292: E/AndroidRuntime(1505):     at android.view.WindowManagerImpl.updateViewLayout(WindowManagerImpl.java:74)
03-05 15:38:08.292: E/AndroidRuntime(1505):     at android.app.Dialog.onWindowAttributesChanged(Dialog.java:677)
03-05 15:38:08.292: E/AndroidRuntime(1505):     at android.view.Window.setType(Window.java:637)
03-05 15:38:08.292: E/AndroidRuntime(1505):     at com.assistek.ediary.AssistekAlertDialog.onAttachedToWindow(AssistekAlertDialog.java:298)

我可以通过使用try-catch块来摆脱异常，但这似乎很懒惰。有没有其他方法来处理此异常？

IllegalArgumentException视图未附加到Window

0 个答案: