Question

我尝试创建一个高于其他应用程序的视图：

WindowManager.LayoutParams paramsDirectorView = new WindowManager.LayoutParams(
        WindowManager.LayoutParams.WRAP_CONTENT,
        WindowManager.LayoutParams.WRAP_CONTENT,
        WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
        WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
        PixelFormat.TRANSLUCENT);

我查看了其他回复，并发现了以下内容：＃34;绘制应用程序＆＃34;：

我在清单
我正在进行Settings.canDrawOverlays（this）检查 回归真实。
我已经完成了permission denied for window type

我仍然得到＆＃34; - 窗口类型2038＆＃34;错误。截至目前我正在使用TYPE_PHONE并且它可以工作，但它已被弃用并且说要使用TYPE_APPLICATION_OVERLAY。有人可以跟进这一点，因为TYPE_PHONE答案不是真正的分辨率，而是一个＆＃34;补丁工作＆＃34;在Android O中弃用的解决方案。

我在Android 7.1.2上运行

android.view.WindowManager $ BadTokenException：无法添加窗口 android.view.ViewRootImpl$W@1f47e89 - 窗口权限被拒绝型号2038 at android.app.ActivityThread.handleServiceArgs（ActivityThread.java:3344）在android.app.ActivityThread.-wrap21（ActivityThread.java）处 android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1583）在android.os.Handler.dispatchMessage（Handler.java:102）at android.os.Looper.loop（Looper.java:154）at android.app.ActivityThread.main（ActivityThread.java:6121）at java.lang.reflect.Method.invoke（Native Method）at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:889）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:779）引起通过：android.view.WindowManager $ BadTokenException：无法添加窗口 android.view.ViewRootImpl$W@1f47e89 - 窗口权限被拒绝在android.view.ViewRootImpl.setView中输入2038（ViewRootImpl.java:703）在 android.view.WindowManagerGlobal.addView（WindowManagerGlobal.java:342）在android.view.WindowManagerImpl.addView（WindowManagerImpl.java:93）在 HeadService.TwoViewManager（TwoViewManager.java:99）在 HeadService.UIHeadService.onStartCommand（UIHeadService.java:65）在 android.app.ActivityThread.handleServiceArgs（ActivityThread.java:3327）在android.app.ActivityThread.-wrap21（ActivityThread.java）处 android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1583）在android.os.Handler.dispatchMessage（Handler.java:102）at android.os.Looper.loop（Looper.java:154）at android.app.ActivityThread.main（ActivityThread.java:6121）at java.lang.reflect.Method.invoke（Native Method）at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:889）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:779）

Answer 1

我有完全相同的问题。我想你应该区分目标（奥利奥之前和之后）

int LAYOUT_FLAG;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
     LAYOUT_FLAG = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
} else {
        LAYOUT_FLAG = WindowManager.LayoutParams.TYPE_PHONE;
}

params = new WindowManager.LayoutParams(
        WindowManager.LayoutParams.WRAP_CONTENT,
        WindowManager.LayoutParams.WRAP_CONTENT,
        LAYOUT_FLAG,
        WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
        PixelFormat.TRANSLUCENT);

Answer 2

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

我在服务类中遇到了完全相同的问题（在Marshmallow之前和之后）。

if (Build.VERSION.SDK_INT >= 23) {
    if (!Settings.canDrawOverlays(this)) {
        Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
          Uri.parse("package:" + getPackageName()));
        startActivityForResult(intent, 1234);
    }
} else {
    startService(new Intent(SplashActivity.this,                     
    CheckServicesForApps.class));
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 1234) {
            startService(new Intent(SplashActivity.this, 
            CheckServicesForApps.class));

    }
}

public class CheckServicesForApps extends Service {
    private Context context = null;

    @Override
    public void onCreate() {
        super.onCreate();

        ImageView imageView = new ImageView(context);
        imageView.setVisibility(View.GONE);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            try {
                windowManager = (WindowManager)getSystemService(WINDOW_SERVICE);

                //here is all the science of params
                final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                        WindowManager.LayoutParams.WRAP_CONTENT,
                        WindowManager.LayoutParams.WRAP_CONTENT,
                        WindowManager. LayoutParams.TYPE_SYSTEM_ERROR,
                        WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
                                | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
                        PixelFormat.TRANSLUCENT
                );

                windowManager.addView(imageView, params);
                hand=new Handler();

            } catch (Exception e) {
                hand=new Handler();
                e.printStackTrace();
            }
        }else{
            windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);

            final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                    WindowManager.LayoutParams.WRAP_CONTENT,
                    WindowManager.LayoutParams.WRAP_CONTENT,
                    WindowManager.LayoutParams.TYPE_PHONE,
                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                    PixelFormat.TRANSLUCENT);

            params.gravity = Gravity.TOP | Gravity.CENTER;
            params.x = ((getApplicationContext().getResources().getDisplayMetrics().widthPixels) / 2);
            params.y = ((getApplicationContext().getResources().getDisplayMetrics().heightPixels) / 2);
            windowManager.addView(imageView, params);
        }
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        /* We want this service to continue running until it is explicitly
        * stopped, so return sticky.
        */
        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        if (imageView != null) {
            try {
                windowManager.removeView(imageView);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        /**** added to fix the bug of view not attached to window manager ****/
    }
}

Answer 3

您是否通过调用以下意图来请求运行时权限？

private void requestOverlayPermission() {
    if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.M) {
        return;
    }

    Intent myIntent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
    myIntent.setData(Uri.parse("package:" + getPackageName()));
    startActivityForResult(myIntent, APP_PERMISSIONS);
}

然后在 onActivityResult（）中检查Settings.canDrawOverlays（this）是否为true，否则请通过调用上述方法再次请求权限。

Answer 4

Source SYSTEM_ALERT_WINDOW 字符串SYSTEM_ALERT_WINDOW 允许应用使用TYPE_APPLICATION_OVERLAY类型创建窗口，显示在所有其他应用之上。很少有应用程序应该使用此权限;这些窗口用于与用户进行系统级交互。

注意：如果应用面向API级别23或更高级别，则应用用户必须通过权限管理屏幕向应用明确授予此权限。该应用通过发送动作ACTION_MANAGE_OVERLAY_PERMISSION来请求用户的批准。该应用可以通过调用Settings.canDrawOverlays（）来检查它是否具有此授权。

Answer 5

尝试将WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY更改为WindowManager.LayoutParams.TYPE_PHONE？

Answer 6

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
        layoutParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
    }else {
        layoutParams.type = WindowManager.LayoutParams.TYPE_PHONE;
    }

Android：使用TYPE_APPLICATION_OVERLAY

6 个答案: