How to know if user allowed a Permission upon prompt

Question

When the permission Dialog pops up, it asks if I want to allow or deny a certain permission. Thing is, when I allow or deny, the action doesn't execute. How do I know if he allowed so I can execute an action upon accepting?

I tried:

int hasWriteExternalStoragePermission = ctx.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE);
    if (hasWriteExternalStoragePermission == PackageManager.PERMISSION_GRANTED) {
        // my code
    }

But it doesn't execute as it's "too late"

You should follow the guide about [Runtime Permission](https://developer.android.com/training/permissions/requesting.html). This is usually a good start on Android basics — AxelH, Jan 23 '17 at 07:13

score 1 · Answer 1 · answered Jan 23 '17 at 07:09

You have to override onRequestPermissionsResult function there you will get call back of permission Dialog pop up.

Like below

public void onRequestPermissionsResult(int requestCode,
        String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted
            } else {

                // permission denied
                // ask again or ignore

            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

score 1 · Answer 2 · answered Jan 23 '17 at 07:10

you need to override this method

@Override
public void onRequestPermissionsResult(int requestCode,
        String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_READ_CONTACTS: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.

            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}

link to official docs

score 0 · Answer 3 · answered Jan 23 '17 at 07:18

Try this way :

public  boolean isStoragePermissionGranted() 
{
    if (Build.VERSION.SDK_INT >= 23) 
    {
        if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                == PackageManager.PERMISSION_GRANTED) 
        {
            Log.v(TAG,"Permission is granted");
            return true;
        } 
        else 
        {

            Log.v(TAG,"Permission is revoked");
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
            return false;
        }
    }
    else 
    { 
        //permission is automatically granted on sdk<23 upon installation
        Log.v(TAG,"Permission is granted <23");
        return true;
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) 
{
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if(grantResults[0]== PackageManager.PERMISSION_GRANTED)
    {
        Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);
        //resume tasks needing this permission
    }

   else
   {
       Log.v(TAG,"Permission denied");
   }
}

This way, If the permission is granted it would come here:

Log.v(TAG,"Permission is granted");

If permission is not already granted , it would come here:

Log.v(TAG,"Permission is revoked"); and try get the permission.

And if user grants the permission in runtime :

Log.v(TAG,"Permission: "+permissions[0]+ "was "+grantResults[0]);

if the user denies it :

Log.v(TAG,"Permission denied");

In case the version is below Marshamallow, ie below API 23, then it would come here:

Log.v(TAG,"Permission is granted <23");

How to know if user allowed a Permission upon prompt

3 Answers3