PermissionsDispatcher库的使用（简单处理Android 6.0系统中的运行时权限的开源库）

PermissionsDispatcher使用

开源地址https://github.com/hotchemi/PermissionsDispatcher

一，添加依赖

dependencies {
compile('com.github.hotchemi:permissionsdispatcher:${latest.version}') {
// if you don't use android.app.Fragment you can exclude support for them
exclude module: "support-v13"
}
annotationProcessor 'com.github.hotchemi:permissionsdispatcher-processor:${latest.version}'
}

二，使用（以相机权限为例）

添加 AndroidManifest

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

添加注释及使用

@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 showNev
a04e
erAskForCamera() {
Toast.makeText(this, R.string.permission_camera_neverask, Toast.LENGTH_SHORT).show();
}
}

@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.showCameraWithCheck(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);
}

三，危险权限和权限组列表

android中文官方文档https://developer.android.google.cn/guide/topics/security/permissions.html#defining