CODEWITHSUNDEEP
androidpermissionsdialogandroid-permissionsruntime-permissions
Karan Asthana
Karan Asthana

Reputation: 326

Android - Request Permission dialog not appearing after requestPermissions(activity, permissions[], requestCode)

I have been trying to implement Run-Time permissions. The following is the code snippet for it :

RunTimePermissionsUtil.java

package com.orgzit.android.util;

import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.v4.app.ActivityCompat;

public class RuntimePermissionsUtil {

private static boolean shouldAskPermission() {
    return (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M);
}

private static boolean shouldAskPermission(Context context, String permission) {
    if (shouldAskPermission()) {
        int permissionGrantedResult = ActivityCompat.checkSelfPermission(context, permission);
        return !(permissionGrantedResult == PackageManager.PERMISSION_GRANTED);
    }
    return false;
}

//TODO Karan 2018-09-20 Still need to investigate on the behaviour of storing in SharedPreferences whether I have asked for the permission before or not
public static void checkPermission(Context context, String permission, AskPermissionListener permissionListener) {
    if (shouldAskPermission(context, permission)) {
        if (!ActivityCompat.shouldShowRequestPermissionRationale(((Activity)context), permission)) {
            permissionListener.onNeedPermission();
        } else {
            permissionListener.onPermissionDisabled();
        }
    } else {
        permissionListener.onPermissionGranted();
    }
}

public interface AskPermissionListener {

    void onPermissionGranted();

    void onNeedPermission();

    void onPermissionDisabled();
}
}

Further inside an activity, AddFileActivity, I implement this listener on a Click Event, the code for the same is :

public class AddFileActivity extends DrawerActivity {

private static final int CAMERA_REQ_CODE = 1001;
private static final int FILE_SELECT_REQ_CODE = 1002;

private Activity activity;

private RuntimePermissionsUtil.AskPermissionListener askPermissionListener;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    activity = this;
    init();
    getSupportActionBar().setTitle("Add File");

    askPermissionListener = new RuntimePermissionsUtil.AskPermissionListener() {
        @Override
        public void onPermissionGranted() {
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            cameraFileUri = getCameraFileUri();
            intent.putExtra(MediaStore.EXTRA_OUTPUT, cameraFileUri);
            startActivityForResult(intent, CAMERA_REQ_CODE);
        }

        @Override
        public void onNeedPermission() {
            ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.CAMERA}, CAMERA_REQ_CODE);
        }

        @Override
        public void onPermissionDisabled() {
            Toast.makeText(activity,"App does not have the permission to Open Camera :(", Toast.LENGTH_LONG).show();
        }
    };
}

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    Log.d("q","q");
}

private void init() {
            showFileChooser();
}


private void showFileChooser() {
    final CharSequence[] items = {"Open camera", "Select from device",
            "Cancel"};
    AlertDialog.Builder builder = new AlertDialog.Builder(AddFileActivity.this);
    builder.setItems(items, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int item) {
            if (items[item].equals("Open camera")) {
                RuntimePermissionsUtil.checkPermission(activity, Manifest.permission.CAMERA, askPermissionListener);
                Log.d("d","d");
            } else if (items[item].equals("Select from device")) {
                //DO SOMETHING
            } else if (items[item].equals("Cancel")) {
                dialog.dismiss();
            }
        }
    });
    builder.show();
}

So, all my code executes, and it goes into the onNeedPermissions() code, wherein, it goes to 

ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.CAMERA}, CAMERA_REQ_CODE);

But, after this, astonishingly, there is no dialog asking for the RunTime Permission for camera, Rather, the dialog closes and displays the activity again.

Can someone please help me regarding this or point out a way to overcome it

Upvotes: 2

Views: 2305

Answers (1)

Nabin Bhandari
Nabin Bhandari

Reputation: 16429

The reasons due to which permission request dialog doesn't appear are:

  • Either the permission is already granted.
  • Or permissions have been set not to ask again.
  • Or you haven't declared the permission in your manifest.

In all cases onRequestPermissionsResult() is called immediately without showing dialog. Check it it is being called and also check the results.

Instead of writing your own utility class, I suggest you to have a look at my library: https://github.com/nabinbhandari/Android-Permissions

Upvotes: 3

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