Cordova android插件中的onRequestPermissionsResult

时间:2017-09-27 10:33:22

标签: android cordova android-permissions

我通过Cordova插件(android)访问相机。为此,我向用户询问permission。如果用户在permission对话框中单击“允许”,则必须启动摄像头。为此,在原生android中,我重写了onRequestPermissionsResult方法,如

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    switch (requestCode) {
        case RequestCameraPermissionID: {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                    return;
                }
                try {
                    cameraSource.start(surfaceView.getHolder());
                } catch (IOException e) {
                    e.printStackTrace();
                }

            }
        }
        break;
    }
}

所以,我想在Cordova插件中使用onRequestPermissionsResult。任何人都可以帮助我吗?

1 个答案:

答案 0 :(得分:3)

如果将该方法放在插件.java文件中,它应该照常工作。关于运行时权限的主题甚至有很好的documentation。 请求权限如下:

cordova.requestPermission(CordovaPlugin plugin, int requestCode, String permission);

回调方法如下所示:

public void onRequestPermissionResult(int requestCode, String[] permissions, int[] grantResults) throws JSONException {
  ... // you can find the whole example implementation in the docs
}

如果你不想自己实现这个,你可以随时使用这个方便的插件:cordova-plugin-android-permissions来请求相机的许可。

编辑(如何使用android-permissions插件):

var permissions = cordova.plugins.permissions;

permissions.hasPermission(permissions.CAMERA, function(status) {
  if (status.hasPermission) {
    // here you can savely start your own plugin because you already have CAMERA permission
  }
  else {
    // need to request camera permission
    permissions.requestPermission(permissions.CAMERA, success, error);

    function error() {
      // camera permission not turned on
    }

    function success(status) {
      if (status.hasPermission) {
        // user accepted, here you can start your own plugin
      }
    }
  }
});