三星Galaxy S9(Android9)上ExponentImagePicker.launchCameraAsync调用失败求助

在三星Galaxy S9（Android 9）真机上调用ExponentImagePicker.launchCameraAsync时出现以下错误：

Error: Call to function 'ExponentImagePicker.launchCameraAsync' has been rejected.
Caused by: kotlin.UninitializedPropertyAccessException: lateinit property cameraLauncher has not been initialized

Android 9及更高版本模拟器运行正常，该功能在更新React Native及相关库后出现异常。

相关代码 #

import * as ImagePicker from 'expo-image-picker';

const MediaSelector: React.FC<Props> = (props) => {
    const open = async () => {
        const permissions = await ImagePicker.requestCameraPermissionsAsync();
        if (!permissions.granted) return Alert.alert("permission denied!")
        
        const config: ImagePicker.ImagePickerOptions = {
            mediaTypes: ImagePicker.MediaTypeOptions.Images,
            allowsEditing: true,
            allowsMultipleSelection: false,
            exif: false,
            aspect: [1, 1],
        }
        try {
            const result = await ImagePicker.launchCameraAsync(config);
        } catch (error) {
            console.log(error)
            Alert.alert("error!")
            return
        }
    }
    
    return <Pressable style={styles.container} onPress={open}>
        <ImageView img={props.image}/>
    </Pressable>
}

版本信息 #

"react": "18.0.0",
"expo-image-picker": "~13.3.1",
"react-native": "0.69.6",

解决办法 #

• 降级expo-image-picker版本：该版本在Android 9真机上存在初始化兼容性问题，可尝试降级至同SDK版本下的稳定版，比如~13.1.1或~13.2.0。修改package.json后执行npm install或yarn install，清理项目缓存后重新打包。
• 提前触发相机相关初始化：在组件挂载时，通过useEffect提前获取相机权限或触发轻量初始化操作，避免调用launchCameraAsync时实例未初始化。示例：

  useEffect(() => {
    // 提前触发权限检查或初始化
    ImagePicker.getCameraPermissionsAsync();
  }, []);
  

• 确认Android权限配置：确保AndroidManifest.xml中已正确添加相机及存储权限：

  <uses-permission android:name="android.permission.CAMERA" />
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
  

• 清理项目构建缓存：执行./gradlew clean（Android），清理Expo缓存expo r -c，重新构建项目。

内容的提问来源于stack exchange，提问作者Simen Russnes