CODEWITHSUNDEEP
javaandroidandroid-permissions
Tom
Tom

Reputation: 472

Android System overlay window

I'm trying to create a system overlay. But I keep getting "permission denied". I'm using SDK version 23.

My manifest file:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test" >

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

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".activity.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

</manifest>

The code I use to create the overlay:

    //mView = new HUDView(this);
    mButton = new Button(this);
    mButton.setText("Overlay button");
    mButton.setOnTouchListener(this);

    WindowManager.LayoutParams params = new WindowManager.LayoutParams(
            WindowManager.LayoutParams.WRAP_CONTENT,
            WindowManager.LayoutParams.WRAP_CONTENT,
            WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
            PixelFormat.TRANSLUCENT);
    params.gravity = Gravity.RIGHT | Gravity.TOP;
    params.setTitle("Load Average");
    WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
    wm.addView(mButton, params);

Upvotes: 20

Views: 33685

Answers (7)

Upendra Shah
Upendra Shah

Reputation: 2301

For Display over the other apps permissions is required to add in the manifest is

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

To check your app has permission

Settings.canDrawOverlays(context)

To check permission checkOverlayPermission

private const val CODE_DRAW_OVER_OTHER_APP_PERMISSION = 2084

private fun checkOverlayPermission(){
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {
        //If the draw over permission is not available open the settings screen
        //to grant the permission.
        val intent = Intent(
            Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
            Uri.parse("package:$packageName")
        )
        startActivityForResult(
            intent,
            CODE_DRAW_OVER_OTHER_APP_PERMISSION
        )
    }
}

And in onActivityResult you can check permission is granted or not

override fun onActivityResult(
    requestCode: Int,
    resultCode: Int,
    data: Intent?
) {
    if (requestCode == CODE_DRAW_OVER_OTHER_APP_PERMISSION) {
        if (Settings.canDrawOverlays(this)) {
            // Permission Granted
        } else {
            // Permission not Granted
            // If you want then call again checkOverlayPermission until permission granted
        }
    } 
}

Upvotes: 0

Gk Mohammad Emon
Gk Mohammad Emon

Reputation: 6936

I handled all of the overlay permissions for every android version in my library. Please see the gist here. enter image description here

Upvotes: 0

arwTheDev
arwTheDev

Reputation: 109

for users below and above android 8 use

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

Upvotes: 0

Arkady
Arkady

Reputation: 664

As an alternative solution, you can try WindowManager.LayoutParams.TYPE_TOAST instead of WindowManager.LayoutParams.TYPE_SYSTEM_ALERT. This not requires any permission. I'm using it to show image, maybe button will work to

Upvotes: 0

Nonos
Nonos

Reputation: 2518

You can also lead the user over to the specific app's overlaying page. The documentation states:

Input: Optionally, the Intent's data URI can specify the application package name to directly invoke the management GUI specific to the package name. For example "package:com.my.app".

So something like:

intent.setData(Uri.fromParts("package", getPackageName(), null));

Upvotes: 0

Anthone
Anthone

Reputation: 2290

In AndroidManifest (for version < 23)

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


public static int ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE= 5469;
//Random value

    public void testPermission() {
        if (!Settings.canDrawOverlays(this)) {
            Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                    Uri.parse("package:" + getPackageName()));
            startActivityForResult(intent, ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE);
        }
    }

Result :

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE) {
        if (Settings.canDrawOverlays(this)) {
            // You have permission
        }
    }
}

Upvotes: 27

CommonsWare
CommonsWare

Reputation: 1006944

First, there is no permission named SYSTEM_OVERLAY_WINDOW. It is SYSTEM_ALERT_WINDOW.

Second, if your targetSdkVersion is 23 or higher, and you are running on Android 6.0+ devices, your app will not get this permission at the outset. Call Settings.canDrawOverlays() to see if you have the permission, and use ACTION_MANAGE_OVERLAY_PERMISSION to lead the user over to Settings if you do not.

Upvotes: 35

Related Questions