问题描述
AndroidManifest.xml
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
App.js
const App = () => {
const [uri,setUri] = useState("/storage/emulated/0/DCIM/Screenshots/Screenshot_20200902-162017_Netflix.jpg")
const requestPermission = async () => {
await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.READ_EXTERNAL_STORAGE,{
title: 'Get Read External Storage Access',message: 'get read external storage access for detecting screenshots',buttonNeutral: 'Ask Me Later',buttonNegative: 'Cancel',buttonPositive: 'OK',}
);
}
const requestPermission2 = async () => {
await PermissionsAndroid.request(
PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,}
);
}
useEffect(() => {
requestPermission()
requestPermission2()
},[])
return (
<View style={styles.container}>
<Image
source={{uri : `file://${uri}`}}
style={{height:'100%',width:'100%'}}
/>
</View>
);
};
进入应用设置后,我获得了权限
“ / storage / emulated / 0 / DCIM / Screenshots / Screenshot_20200902-162017_Netflix.jpg文件实际上存在。
为什么我什么也看不到
解决方法
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