ktina ktina - 1 year ago 58
Android Question

How to get "Never ask Again" option in runtime permission

In my app I have created a class name Untility where I wrore the code for permission of READ_EXTERNAL_STORAGE. But the problem is when I click Deny on the app, I am not finding the alert notification to set it allow again. Initialy I have the option "Never ask Again". Once I clicked on it, the dialog desapperas. and now after running the app if I click on deny, I cannot find Dialog message anymore to make it allow again. How can I modify my code to show this message every time.

My Utility Class is

public class Utility {

public static final int MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 123;

@TargetApi(Build.VERSION_CODES.M)
public static boolean checkPermission(final Context context) {
int currentAPIVersion = Build.VERSION.SDK_INT;
if (currentAPIVersion >= android.os.Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
Log.v("TAG", "Permission is granted");
}
else {
ActivityCompat.requestPermissions((Activity) context, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
}
return false;
} else {
return true;
}
} else {
return true;
}
}


My Another class here I am calling the Utility class is

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case Utility.MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if(userChoosenTask.equals("Take Photo"))
cameraIntent();
else if(userChoosenTask.equals("Choose from Library"))
galleryIntent();

//do something here
} else {
//code for deny
Toast.makeText(DetailMyColleague.this, "Permission Denied", Toast.LENGTH_SHORT).show();
}
break;
}
}
private void selectImage() {
final CharSequence[] items = { "Take Photo", "Choose from Library",
"Cancel" };

AlertDialog.Builder builder = new AlertDialog.Builder(DetailMyColleague.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
boolean result=Utility.checkPermission(DetailMyColleague.this);

if (items[item].equals("Take Photo")) {
userChoosenTask ="Take Photo";
if(result)
cameraIntent();

} else if (items[item].equals("Choose from Library")) {
userChoosenTask ="Choose from Library";
if(result)
galleryIntent();

} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
private void galleryIntent()
{
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);//
startActivityForResult(Intent.createChooser(intent, "Select File"),SELECT_FILE);
}
private void cameraIntent()
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CAMERA);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_FILE)
onSelectFromGalleryResult(data);
else if (requestCode == REQUEST_CAMERA)
onCaptureImageResult(data);
}
}

private void onCaptureImageResult(Intent data) {
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);

File destination = new File(Environment.getExternalStorageDirectory(),
System.currentTimeMillis() + ".jpg");

FileOutputStream fo;
try {
destination.createNewFile();
fo = new FileOutputStream(destination);
fo.write(bytes.toByteArray());
fo.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

profilePic.setImageBitmap(thumbnail);
}
@SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {

Bitmap bm=null;
if (data != null) {
try {
bm = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());
} catch (IOException e) {
e.printStackTrace();
}
}

profilePic.setImageBitmap(bm);
}

Answer Source

You cannot show the same Request message once they say "don't ask again", but you can check for the permission, and if denied, show a custom dialog that directs them to the settings page with an intent:

startActivityForResult(new Intent(android.provider.Settings.ACTION_SETTINGS), 0);

If your permission check fails:

if (ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
    // show a dialog
    new AlertDialog.Builder(context).setMessage("You need to enable permissions to use this feature").setPositiveButton("Go to settings", new DialogInterface.OnClickListener() {
         @Override
         public void onClick(DialogInterface dialog, int which) {
             // navigate to settings
             ((Activity) context).startActivityForResult(new Intent(android.provider.Settings.ACTION_SETTINGS), 0);
         }
     }).setNegativeButton("Go back", new DialogInterface.OnClickListener() {
         @Override
         public void onClick(DialogInterface dialog, int which) {
             // leave?
             ((Activity) context).onBackPressed();
         }
     }).show();
}
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