Android 6.0权限管理

private static final String TAG = "MainActivity";
  private static final int REQUEST_CODE_CAMERA = 0x01;
  private RelativeLayout activity_main;
  private PermissionManager mPermissionManager= null;

  @Override protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    activity_main = (RelativeLayout) findViewById(R.id.activity_main);
    getPermission();
  }

  public void getPermission() {
    mPermissionManager = PermissionManager.with(this)
        // 添加权限请求码
        .addRequestCode(REQUEST_CODE_CAMERA)
        // 设置权限
        .permissions(Manifest.permission.CAMERA)
        // 设置权限监听器
        .setPermissionsListener(new PermissionListener() {
          @Override public void onGranted() {
            // 当权限被授予时
            Log.e(TAG, "onGranted: 权限被授予");
          }

          @Override public void onDenied() {
            // 用户拒绝该权限
            Log.e(TAG, "onDenied: 用户拒绝该权限");
          }

          @Override public void onShowRationale(String[] permissions) {
            Log.e(TAG, "onShowRationale: 再次请求");
            // 当用户拒绝某权限时并点击`不再提醒`的按钮时，下次应用再请求该权限时，
            // 需要给出合适的响应（比如,给个展示对话框来解释应用为什么需要该权限）
            Snackbar.make(activity_main, "需要相机权限", Snackbar.LENGTH_INDEFINITE)
                .setAction("ok", new View.OnClickListener() {
                  @Override public void onClick(View v) {
                    // 必须调用manager.setIsPositive(true);
                    mPermissionManager.setIsPositive(true);
                    mPermissionManager.request();
                  }
                })
                .show();
          }
        })
        .request();
  }

  @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
      @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode){
      case REQUEST_CODE_CAMERA:
        mPermissionManager.onPermissionResult(permissions,grantResults);
        break;
    }
  }