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by tbruyelle

tbruyelle /RxPermissions

Android runtime permissions powered by RxJava2

9.7K Stars 1.2K Forks Last release: 2 days ago (v0.12) Apache License 2.0 227 Commits 20 Releases

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


To use this library your


must be >= 14.

allprojects { repositories { ... maven { url '' } } } dependencies { implementation 'com.github.tbruyelle:rxpermissions:0.12' }


Create a


instance :

final RxPermissions rxPermissions = new RxPermissions(this); // where this is an Activity or Fragment instance


new RxPermissions(this)



parameter can be a FragmentActivity or a Fragment. If you are using


inside of a fragment you should pass the fragment instance(

new RxPermissions(this)

) as constructor parameter rather than

new RxPermissions(fragment.getActivity())

or you could face a

java.lang.IllegalStateException: FragmentManager is already executing transactions


Example : request the CAMERA permission (with Retrolambda for brevity, but not required)

// Must be done during an initialization phase like onCreate rxPermissions .request(Manifest.permission.CAMERA) .subscribe(granted -\> { if (granted) { // Always true pre-M // I can control the camera now } else { // Oups permission denied } });

If you need to trigger the permission request from a specific event, you need to setup your event as an observable inside an initialization phase.

You can use JakeWharton/RxBinding to turn your view to an observable (not included in the library).

Example :

// Must be done during an initialization phase like onCreate RxView.clicks(findViewById( .compose(rxPermissions.ensure(Manifest.permission.CAMERA)) .subscribe(granted -\> { // has been clicked });

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 } });

You can also observe a detailed result with





rxPermissions .requestEach(Manifest.permission.CAMERA, Manifest.permission.READ\_PHONE\_STATE) .subscribe(permission -\> { // will emit 2 Permission objects if (permission.granted) { // `` is granted ! } else if (permission.shouldShowRequestPermissionRationale) { // Denied permission without ask never again } else { // Denied permission with ask never again // Need to go to the settings } });

You can also get combined detailed result with





rxPermissions .requestEachCombined(Manifest.permission.CAMERA, Manifest.permission.READ\_PHONE\_STATE) .subscribe(permission -\> { // will emit 1 Permission object if (permission.granted) { // All permissions are granted ! } else if (permission.shouldShowRequestPermissionRationale) // At least one denied permission without ask never again } else { // At least one denied permission with ask never again // Need to go to the settings } });

Look at the


app for more.

Important read

As mentioned above, because your app may be restarted during the permission request, the request must be done during an initialization phase. This may be


, or


, but not pausing methods like


, because you'll potentially create an infinite request loop, as your requesting activity is paused by the framework during the permission request.

If not, and if your app is restarted during the permission request (because of a configuration change for instance), the user's answer will never be emitted to the subscriber.

You can find more details about that here.


This library is still beta, so contributions are welcome. I'm currently using it in production since months without issue.


  • 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



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


Copyright (C) 2015 Thomas Bruyelle 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 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.

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