• Fully Kotlin support
• Special Permissions support
• Xiaomi support
• 100% reflection-free

PermissionsDispatcher provides a simple annotation-based API to handle runtime permissions.

This library lifts the burden that comes with writing a bunch of check statements whether a permission has been granted or not from you, in order to keep your code clean and safe.

• If you're using Kotlin check Kotlin ver first of all.

Here's a minimum example, in which you register a MainActivity which requires Manifest.permission.CAMERA.

Add the following line to AndroidManifest.xml:

<uses-permission android:name="android.permission.CAMERA" />

PermissionsDispatcher introduces only a few annotations, keeping its general API concise:

NOTE: Annotated methods must not be private.

@RuntimePermissions
public class MainActivity extends AppCompatActivity {

    @NeedsPermission(Manifest.permission.CAMERA)
    void showCamera() {
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.sample_content_fragment, CameraPreviewFragment.newInstance())
                .addToBackStack("camera")
                .commitAllowingStateLoss();
    }

    @OnShowRationale(Manifest.permission.CAMERA)
    void showRationaleForCamera(final PermissionRequest request) {
        new AlertDialog.Builder(this)
            .setMessage(R.string.permission_camera_rationale)
            .setPositiveButton(R.string.button_allow, (dialog, button) -> request.proceed())
            .setNegativeButton(R.string.button_deny, (dialog, button) -> request.cancel())
            .show();
    }

    @OnPermissionDenied(Manifest.permission.CAMERA)
    void showDeniedForCamera() {
        Toast.makeText(this, R.string.permission_camera_denied, Toast.LENGTH_SHORT).show();
    }

    @OnNeverAskAgain(Manifest.permission.CAMERA)
    void showNeverAskForCamera() {
        Toast.makeText(this, R.string.permission_camera_neverask, Toast.LENGTH_SHORT).show();
    }
}

Upon compilation, PermissionsDispatcher generates a class for MainActivityPermissionsDispatcher([Activity Name] + PermissionsDispatcher), which you can use to safely access these permission-protected methods.

The only step you have to do is delegating the work to this helper class:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    findViewById(R.id.button_camera).setOnClickListener(v -> {
      // NOTE: delegate the permission handling to generated method
      MainActivityPermissionsDispatcher.showCameraWithPermissionCheck(this);
    });
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    // NOTE: delegate the permission handling to generated method
    MainActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);
}

Check out the sample for more details.

• Getting Special Permissions
• maxSdkVersion
• Xiaomi
  • Since Xiaomi manipulates something around runtime permission mechanism Google's recommended way doesn't work well. But don't worry, PermissionsDispatcher supports it! Check related PR for more detail.
• IntelliJ plugin
• AndroidAnnotations plugin
  • If you use AndroidAnnotations, you need to add AndroidAnnotationsPermissionsDispatcherPlugin.

If you're in trouble check known issues list before filing an issue.

Thankfully we've got hundreds of users around the world!

To add PermissionsDispatcher to your project, include the following in your app module build.gradle file:

${latest.version} is

dependencies {
  implementation "com.github.hotchemi:permissionsdispatcher:${latest.version}"
  annotationProcessor "com.github.hotchemi:permissionsdispatcher-processor:${latest.version}"
}

Snapshots of the development version are available in JFrog's snapshots repository. Add the repo below to download SNAPSHOT releases.

repositories {
  jcenter()
  maven { url 'http://oss.jfrog.org/artifactory/oss-snapshot-local/' }
}

• If you include Jitpack.io dependencies in your project, it is important to review the order of the repositories available to your app module
  • Because of the library's artifact ID, Jitpack might be tempted to resolve the dependency on its own, which could lead to an error during Gradle's configuration time
• If you're going to bump up the major version number we recommend to refer to migration guide

Copyright 2016 Shintaro Katafuchi, Marcel Schnelle, Yoshinori Isogai

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.