android 权限管理

android 6.0之后申请还有点麻烦的,所以我们介绍PermissionsDispatcher

https://github.com/permissions-dispatcher/PermissionsDispatcher

android studio 安装插件 image.png

@RuntimePermissions
public class AccusedActivity extends BaseActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_accused);
         //APT生成需要编译一下
        AccusedActivityPermissionsDispatcher.showCameraWithPermissionCheck(this);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        AccusedActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);
    }

  //同意请求之后触发
    @NeedsPermission(Manifest.permission.CAMERA)
    void showCamera() {
        Toast.makeText(this, "showCamera", Toast.LENGTH_SHORT).show();
    }

// 申请权限弹窗  选择禁止  但是并未勾选以后再不提醒 , 第二次进来显示自定义弹窗
    @OnShowRationale(Manifest.permission.CAMERA)
    void showRationaleForCamera(final PermissionRequest request) {
        new AlertDialog.Builder(this)
                .setMessage("showRationaleForCamera")
//显示同意  再调出权限弹窗询问
                .setPositiveButton("同意", (dialog, button) -> request.proceed())
                .setNegativeButton("拒绝", (dialog, button) -> request.cancel())
                .show();
    }

//选择权限禁止按钮
    @OnPermissionDenied(Manifest.permission.CAMERA)
    void showDeniedForCamera() {
        Toast.makeText(this, "拒绝", Toast.LENGTH_SHORT).show();
    }

//选中了 不再询问并且禁止了  再次进来时提醒 
    @OnNeverAskAgain(Manifest.permission.CAMERA)
    void showNeverAskForCamera() {
        Toast.makeText(this, "从来不问", Toast.LENGTH_SHORT).show();
    }
}