android - 无法删除叠加 View

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我能够解决这个问题，问题是对话和相关可以从广播接收器启动但不推荐，因为 Activity 运行在 View 之前结束。

尝试实现像 fb messenger、truecaller 等覆盖

public class IncomingCall extends BroadcastReceiver
{
private Context pcontext;
private static final String TAG = "CustomBroadcastReceiver";
 TelephonyManager telephony;
 CustomPhoneStateListener customPhoneListener ;
@Override
public void onReceive(Context context, Intent intent) 
{
    pcontext = context;
    Bundle extras = intent.getExtras();
    if (extras != null) {
        String state = extras.getString(TelephonyManager.EXTRA_STATE);
        Log.w("DEBUG", state);

            telephony = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
            customPhoneListener = new   CustomPhoneStateListener();
            telephony.listen(customPhoneListener,   PhoneStateListener.LISTEN_CALL_STATE);
            Bundle bundle = intent.getExtras();
            String phoneNr= bundle.getString("incoming_number");


    }


}
public class CustomPhoneStateListener extends PhoneStateListener
{
    private static final String TAG = "CustomPhoneStateListener";
    Handler handler=new Handler();
    @Override
    public void onCallStateChanged(int state, String incomingNumber) 
    {

        WindowManager wm = (WindowManager) pcontext.getSystemService(Context.WINDOW_SERVICE);

        WindowManager.LayoutParams params = new WindowManager.LayoutParams(
            LayoutParams.MATCH_PARENT,
            LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.TYPE_SYSTEM_ALERT |
            WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
            PixelFormat.TRANSPARENT);

        params.height = LayoutParams.MATCH_PARENT;
        params.width = LayoutParams.MATCH_PARENT;
        params.format = PixelFormat.TRANSLUCENT;

        params.gravity = Gravity.BOTTOM;

        RelativeLayout ly;
        final LayoutInflater inflater = (LayoutInflater) pcontext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        ly = (RelativeLayout) inflater.inflate(R.layout.dialog, null);

        switch (state) 
        {
        case TelephonyManager.CALL_STATE_RINGING:
            Log.d("Call","RINGING");

            wm.addView(ly, params);
            break;

        case TelephonyManager.CALL_STATE_IDLE:

                Log.d("Call","End");
                //WindowManager wm = (WindowManager) pcontext.getSystemService(Context.WINDOW_SERVICE);

                if(ly!=null)
                {
                    wm.removeView(ly);
                    ly = null;
                }
            break;
        default:
            break;
        }
        super.onCallStateChanged(state, incomingNumber);
        telephony.listen(customPhoneListener, PhoneStateListener.LISTEN_NONE);
    }


}       
}

addView 工作正常，这是日志

“ View 未附加到窗口管理器”

08-24 20:05:56.404: W/DEBUG(28001): IDLE
08-24 20:05:56.424: D/Call(28001): End
08-24 20:05:56.424: D/AndroidRuntime(28001): Shutting down VM
08-24 20:05:56.424: W/dalvikvm(28001): threadid=1: thread exiting with uncaught exception (group=0x412982a0)
08-24 20:05:56.444: E/AndroidRuntime(28001): FATAL EXCEPTION: main
08-24 20:05:56.444: E/AndroidRuntime(28001): java.lang.IllegalArgumentException: View not attached to window manager
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:673)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:369)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.view.WindowManagerImpl$CompatModeWrapper.removeView(WindowManagerImpl.java:160)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at com.androidexample.broadcastreceiver.IncomingCall$CustomPhoneStateListener.onCallStateChanged(IncomingCall.java:105)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.telephony.PhoneStateListener$2.handleMessage(PhoneStateListener.java:393)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.os.Handler.dispatchMessage(Handler.java:99)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.os.Looper.loop(Looper.java:137)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at android.app.ActivityThread.main(ActivityThread.java:4898)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at java.lang.reflect.Method.invokeNative(Native Method)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at java.lang.reflect.Method.invoke(Method.java:511)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
08-24 20:05:56.444: E/AndroidRuntime(28001):    at dalvik.system.NativeStart.main(Native Method)
08-24 20:08:22.669: I/Process(28001): Sending signal. PID: 28001 SIG: 9

我也曾尝试以编程方式创建布局......但没有运气

也搞不清楚生成布局的id

Answer 1

问题是，我们不能在广播接收器中使用对话框，它必须在另一个可以有意启动的 Activity 中。