oskarh / RxPermissions

Android M runtime permissions powered by RxJava

RxPermissions

This library allows the usage of RxJava with the new Android M permission model.

Example (With Retrolambda for brevity, but not required):

 rxPermissions.request(Manifest.permission.CAMERA)
                .subscribe(granted -> {
                    if (granted) { // Always true pre-M
                       // I can control the camera now
                    } else {
                       // Oups permission denied
                    }
                });

If multiple permissions at the same time, the result is combined :

 rxPermissions.request(Manifest.permission.CAMERA,
                       Manifest.permission.READ_PHONE_STATE)
                .subscribe(granted -> {
                    if (granted) {
                       // All requested permissions are granted
                    } else {
                       // At least one permission is denied
                    }
                });

Look at the sample app for more.

Status

This library is at a very early stage of development, so contributions are welcome. It should not be used in production, or at your own risk.

Benefits

• Avoid worrying about the framework version. If the sdk is pre-M, the observer will automatically receive a granted result.

• Prevents you to split your code between the permission request and the result handling. Currently without this library you have to request the permission in one place and handle the result in Activity.onRequestPermissionsResult().

• Handles multiple permission requests out of the box. For instance if during the initialization of your app you request the same permission in 2 different places, only one request will be made to the framework. As a result, only one popup will appear to the user, but his reponse will be dispatched to all requesters.

• Easy testing.

• All what RX provides about transformation, filter, chaining...

Setup

In your build.gradle :

repositories {
    maven { url "http://dl.bintray.com/tbruyelle/tbruyelle" }
}

dependencies {
    compile 'com.tbruyelle.rxpermissions:rxpermissions:0.1.0@aar'
}

In your activity :

 private RxPermissions mRxPermissions;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);

     mRxPermissions = new RxPermissions(this);
 }

 @Override
 public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
     mRxPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults);
 }