我如何在React Native中一次请求多个权限

Question

我想在一页上请求权限，而不是等待每种特定情况。但是，我不希望有多个弹出窗口。有没有一种方法可以通过单个弹出窗口/模式来请求权限。

在android方面，我发现了这篇文章和this，看起来很有希望，但是我还没有找到适用于iOS的东西。

Answer 1

在Android中

首先将权限添加到AndroidManifest.xml文件中，然后

if (Platform.OS === 'android') {
    PermissionsAndroid.requestMultiple(
      [PermissionsAndroid.PERMISSIONS.CAMERA, 
      PermissionsAndroid.PERMISSIONS.READ_CONTACTS,
      PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION,
      PermissionsAndroid.PERMISSIONS.ACCESS_COARSE_LOCATION,
      PermissionsAndroid.PERMISSIONS.READ_EXTERNAL_STORAGE,
      PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE]
      ).then((result) => {
        if (result['android.permission.ACCESS_COARSE_LOCATION']
        && result['android.permission.CAMERA']
        && result['android.permission.READ_CONTACTS']
        && result['android.permission.ACCESS_FINE_LOCATION']
        && result['android.permission.READ_EXTERNAL_STORAGE']
        && result['android.permission.WRITE_EXTERNAL_STORAGE'] === 'granted') {
          this.setState({
            permissionsGranted: true
          });
        } else if (result['android.permission.ACCESS_COARSE_LOCATION']
        || result['android.permission.CAMERA']
        || result['android.permission.READ_CONTACTS']
        || result['android.permission.ACCESS_FINE_LOCATION']
        || result['android.permission.READ_EXTERNAL_STORAGE']
        || result['android.permission.WRITE_EXTERNAL_STORAGE'] === 'never_ask_again') {
          this.refs.toast.show('Please Go into Settings -> Applications -> APP_NAME -> Permissions and Allow permissions to continue');
        }
      });
  }

在iOS中 在XCode上项目的信息部分

• 添加权限，然后添加描述，例如-隐私：-联系人使用情况描述，

  Permissions.request('photo').then(response => {
    if (response === 'authorized') {
      iPhotoPermission = true;
    }
   Permissions.request('contact').then(response => {
    if (response === 'authorized') {
      iPhotoPermission = true;
    }
  });
  });
  

Answer 2

确保您还在清单文件中添加了相应的权限。

export async function GetAllPermissions() {
  try {
    if (Platform.OS === "android") {
      const userResponse = await PermissionsAndroid.requestMultiple([
        PermissionsAndroid.PERMISSIONS.READ_CONTACTS,
        PermissionsAndroid.PERMISSIONS.CALL_PHONE
      ]);
      return userResponse;
    }
  } catch (err) {
    Warning(err);
  }
  return null;
}