A simple easy-to-use permission helper for Android. No need to handle result in onActivityResult and passing it to fragment or model. PermissionUtil can be used from any place with context only (Activity, Fragment,ViewModel).

//Easy to use
PermissionUtil.locationBoth(context, requestPermissionListener);

Added new CallbackBuilder so now you can build PermissionCallback with or without granted or denied calls. Also you can set resources for rationale explanation.

new CallbackBuilder()
                .onGranted(()->yourGrantedCall())
                .onDenied(()->yourDeniedCall())
                .withRationale(titleId,messageId)
                .build();

Simplified callback. Just override method that you need and that's it.

public abstract class ShortPerCallback implements PermissionCallback {

    @Override
    public void onPermissionGranted() {
    }

    @Override
    public void onPermissionDenied() {
    }
   
}

If you need to show rationale explanation - you may use CallbackBuilder or you need to override getRationaleTitleId() and getRationaleMessageId() of PermissionCallback class if you don't wan't to use builder . Dialog won't be shown if getRationaleMessageId() will return 0.

    // default implementation 
    
    int getRationaleTitleId() {
        return 0;
    }
    
    int getRationaleMessageId() {
        return 0;
    }

You can directly use prepared requests like :

PermissionUtil.locationFine(context, requestPermissionListener);
PermissionUtil.locationCoarse(context, requestPermissionListener);

Or you can request multiple permissions with your group :

PermissionUtil.checkGroup(context, requestPermissionListener,new String[]{Manifest.permission.READ_PHONE_STATE});

List of permissions that could be requested according to Dangerous permissions :

• contactsRead
• contactsWrite
• contactsRW
• calendarRead
• calendarWrite
• calendarRW
• storageRead
• storageWrite
• storageRW
• locationFine
• locationCoarse
• locationBoth
• camera
• microphone
• phoneReadState
• phoneCall
• phoneReadCallLog
• phoneWriteCallLog
• phoneAddVoiceMail
• phoneSip
• phoneOutgoing
• phoneAll
• sensors
• smsSend
• smsReceive
• smsRead
• smsWap
• smsMms
• smsAll
• checkGroup

repositories {
    // yo can use 
    mavenCentral() // or jcenter()
    
    //or direct link to repository or jitpack
    maven { url  "http://dl.bintray.com/euzee/Libs" } // or maven { url "https://jitpack.io" }
}
(with gradle plugin less then v3 use 'compile' instead of implementation) 
implementation 'com.github.euzee:permissionUtil:1.0.7'

Copyright 2017 Euzee, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.