私はネイティブに反応するのが初めてで、現在ImagePickerパッケージを使用して画像/ビデオキャプチャアプリを作成しています。画像キャプチャ用とビデオ キャプチャ用の 2 つのボタンがあります。私の問題は、現在、TouchableOpacityボタンと同じページに画像が表示されていることですが、を使用して次のページ ( ThirdScreen.js) に画像を表示する必要がありますStackNavigator。
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View,
PixelRatio,
TouchableOpacity,
Image,
} from 'react-native';
import ImagePicker from 'react-native-image-picker';
import Video from 'react-native-video';
import ThirdScreen from './ThirdScreen';
import Help from './app/components/Help';
const util = require('util');
class SecondScreen extends React.Component {
static navigationOptions ={
header: null,
};
//TODO: Link SecondScreen and PictureTaken together
//Research how to pass props to another component in react-native
render() {
const {navigate} = this.props.navigation;
return (
<View style={styles.container}>
<Help onPress = {()=> navigate("HelpSecond")}/>
<TouchableOpacity style={styles.button} onPress = {()=> navigate("Third")}>
<Text>Third Screen</Text>
</TouchableOpacity>
<ImagePickerProject/>
<VideoPickerProject/>
</View>
);
}
};
class ImagePickerProject extends Component<{}> {
state = {
ImageSource: null,
};
selectPhotoTapped(response) {
console.log('oh hi mark', response.fileName)
const options = {
maxWidth: 1000,
maxHeight: 1000,
storageOptions: {
skipBackup: true,
file: response.fileName,
}
};
ImagePicker.showImagePicker(options, (response) => {
console.log('Response = ', response.fileName);
if (response.didCancel) {
console.log('User cancelled photo picker');
}
else if (response.error) {
console.log('ImagePicker Error: ', response.error);
}
else if (response.customButton) {
console.log('User tapped custom button: ', response.customButton);
}
else {
let source = { uri: response.uri };
// You can also display the image using data:
// let source = { uri: 'data:image/jpeg;base64,' + response.data };
this.setState({
ImageSource: source
});
}
});
}
render() {
return (
<View style={styles.Image}>
{ this.state.ImageSource === null ?
<TouchableOpacity style={styles.button} onPress={this.selectPhotoTapped.bind(this)}>
<Text>Photo</Text>
</TouchableOpacity> :
<Image resizeMode={'cover'}
style={{ width: '100%', height: 400 }}
source={this.state.ImageSource}>
{this.state.file}
</Image>
}
</View>
);
}
};
class VideoPickerProject extends Component<{}> {
state = {
ImageSource: null,
};
selectPhotoTapped() {
const options = {
title: 'Video Picker',
takePhotoButtonTitle: 'Take Video...',
mediaType: 'video',
videoQuality: 'medium',
storageOptions: {
skipBackup: true
}
};
ImagePicker.showImagePicker(options, (response) => {
console.log('Response = ', response);
if (response.didCancel) {
console.log('User cancelled photo picker');
}
else if (response.error) {
console.log('ImagePicker Error: ', response.error);
}
else if (response.customButton) {
console.log('User tapped custom button: ', response.customButton);
}
else {
let source = { uri: response.uri };
// You can also display the image using data:
// let source = { uri: 'data:image/jpeg;base64,' + response.data };
this.setState({
ImageSource: source
});
}
});
}
render() {
return (
<View style={styles.Image}>
{ this.state.ImageSource === null ?
<TouchableOpacity style={styles.button} onPress={this.selectPhotoTapped.bind(this)}>
<Text>Video</Text>
</TouchableOpacity> :
<Video style={{ width: '100%', height: 400 }} source={this.state.ImageSource}
ref={(ref) => {
this.player = ref
}}
rate={1.0} // 0 is paused, 1 is normal.
volume={1.0} // 0 is muted, 1 is normal.
muted={false} // Mutes the audio entirely.
paused={false} // Pauses playback entirely.
resizeMode="cover" // Fill the whole screen at aspect ratio.*
repeat={true} // Repeat forever.
playInBackground={false} // Audio continues to play when app entering background.
playWhenInactive={false} // [iOS] Video continues to play when control or notification center are shown.
ignoreSilentSwitch={"ignore"} // [iOS] ignore | obey - When 'ignore', audio will still play with the iOS hard silent switch set to silent. When 'obey', audio will toggle with the switch. When not specified, will inherit audio settings as usual.
progressUpdateInterval={250.0} // [iOS] Interval to fire onProgress (default to ~250ms)
onLoadStart={this.loadStart} // Callback when video starts to load
onLoad={this.setDuration} // Callback when video loads
onProgress={this.setTime} // Callback every ~250ms with currentTime
onEnd={this.onEnd} // Callback when playback finishes
onError={this.videoError} // Callback when video cannot be loaded
onBuffer={this.onBuffer} // Callback when remote video is buffering
onTimedMetadata={this.onTimedMetadata}/>
}
</View>
);
}
};
const styles = StyleSheet.create({
container: {
flex:1,
justifyContent: 'flex-start',
alignItems: 'center',
backgroundColor: '#1e1f20',
paddingLeft: 60,
paddingRight: 60,
paddingTop: 10,
},
ImageContainer: {
borderRadius: 0,
width: 800,
height: 800,
borderColor: '#9B9B9B',
borderWidth: 1 / PixelRatio.get(),
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#1e1f20',
},
button: {
width: 300,
height:100,
marginBottom: 10,
marginTop: 10,
backgroundColor: 'purple',
alignItems: 'center',
},
Image: {
width: 193, height: 110
}
});
export default SecondScreen;