react-native-image-pickerlaunchCamera在android中不起作用

在捕获图像之前，请向用户询问相机权限。在棉花糖版本以上的 Android 中，您还应该询问运行时权限，这些权限称为危险权限。

const requestCameraPermission = async () => {
  try {
    const granted = await PermissionsAndroid.request(
      PermissionsAndroid.PERMISSIONS.CAMERA,
      {
        title: "App Camera Permission",
        message:"App needs access to your camera "
        buttonNeutral: "Ask Me Later",
        buttonNegative: "Cancel",
        buttonPositive: "OK"
      }
    );
    if (granted === PermissionsAndroid.RESULTS.GRANTED) {
      console.log("Camera permission given");
    } else {
      console.log("Camera permission denied");
    }
  } catch (err) {
    console.warn(err);
  }
};

然后如果获得许可，则内部if调用

ImagePicker.launchCamera