问题
I am implementing camera in my react native application. I want to show the recently captured image from that camera in a small image view on the same screen after click. But I am not getting how do I access the recently clicked image. Whenever any new image is clicked through phone it has been given a default random name, how do I refer it in image view's source?Please suggest me some way to do that. My code is
class Incident extends Component {
constructor(props)
{ super(props)
this.state= {path:"",show:false,video:Camera.constants.CaptureMode.video,camera:Camera.constants.CaptureMode.camera}
}
render() {
return (
<View style={styles.container}>
<View style={{flex:72}}>
<Camera
ref={(cam) => {
this.camera = cam;
}}
style={styles.preview}
aspect={Camera.constants.Aspect.fill}
captureMode={this.state.camera}>
</Camera>
</View>
<View style={{flex:8,opacity:0.5,backgroundColor:'black'}}>
{()=>this.showClickedImage()}
</View>
<View style={{flex:10,flexDirection:'row',justifyContent:'space-between',backgroundColor:'#f3396b'}}>
<TouchableOpacity style={{flex:33,flexDirection:'column', alignItems: 'center',paddingTop:10}}>
<Image style={styles.icon} source={require('./Images/menu.png')}/>
<Text>Home</Text>
</TouchableOpacity>
<TouchableOpacity style={{flex:34,flexDirection:'column', height:70,alignItems: 'center',borderColor:'#dd1e52',borderWidth:1,paddingTop:5}}
onPress={()=>this.takePicture()}>
<Image style={{width:50,height:50}} source={require('./Images/capture.png')}/>
</TouchableOpacity>
<TouchableOpacity style={{flex:33,flexDirection:'column', alignItems: 'center',paddingTop:10}}>
<Image style={styles.icon} source={require('./Images/profile.png')}/>
<Text>Profile</Text>
</TouchableOpacity>
</View>
</View>
);
}
showClickedImage()
{
return <View style={{flex:1,height:40,width:40, borderWidth:1,borderColor:'black'}}>
<Image style={{width:40,height:40}} source= {{uri: this.state.path}}/>
</View>
}
takePicture()
{
this.camera.capture()
.then((data) =>{console.log(data.path),this.setState({show:true}),this.setState({path:data.path})})
.catch(err => console.error(err));
}
}
回答1:
camera.capture()
returns path of the captured image. Use that to show in Image
component.
<Image source={{uri: data.path}} style={{width: 100, height: 100}} />
来源:https://stackoverflow.com/questions/40583159/get-recently-clicked-image-from-camera-on-image-view-in-react-native