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| import React, { Component } from 'react';
import {
StyleSheet,
Text,
TextInput,
View,
Slider,
ActivityIndicator,
ListView,
TouchableHighlight
} from 'react-native';
import { executeFetchRequest, urlForSearchtext, urlForInteresting } from '../DataManager';
const ResultsScreen = require('./ResultsScreen');
const DetailScreen = require('./DetailScreen');
class SearchScreen extends Component {
constructor(props) {
super(props);
const dataSource = new ListView.DataSource(
{rowHasChanged: (r1,r2) => r1.id !== r2.id }
);
this.state = {
searchText: 'Summer',
isLoading: false,
dataSource: dataSource.cloneWithRows([]),
photos: []
};
}
// Event handlers
_onPressSearch() {
const url = urlForSearchtext(this.state.searchText);
this.setState({ isLoading: true });
executeFetchRequest(url, (photos) => {
this.setState({ isLoading: false });
this.props.navigator.push ({
title: this.state.searchText + ' Photos',
component: ResultsScreen,
passProps: {photos: photos}
});
});
}
// Lifecycle
componentDidMount() {
const url = urlForInteresting();
executeFetchRequest(url, (photos) => {
let dataSource = new ListView.DataSource(
{rowHasChanged: (r1,r2) => r1.id !== r2.id }
);
this.setState({
isLoading: false,
dataSource: dataSource.cloneWithRows(photos),
photos: photos
});
});
}
render() {
const spinner = this.state.isLoading ? (<ActivityIndicator size='large'/>) : (<View/>);
return (
<View style={styles.root}>
<View style={styles.topContainer}>
<Text style={styles.screenTitle}>Search</Text>
<TextInput style={styles.textInput}
placeholder='"Anything"'
onChangeText={(searchText) => this.setState({searchText})}
/>
{spinner}
<TouchableHighlight style={styles.searchButton}
onPress={this._onPressSearch.bind(this)}
underlayColor='#007AFF'>
<Text style={styles.buttonText}>GO</Text>
</TouchableHighlight>
</View>
<View style={styles.bottomContainer}>
<Slider
style={{ width: 300 }}
step={1}
minimumValue={1}
maximumValue={5}
value={this.state.column}
onValueChange={val => this.setState({ column: val })}
/>
<Text style={styles.welcome}>
{this.state.column}
</Text>
</View>
</View>
);
}
}
// Styles
const styles = StyleSheet.create({
root: {
flex: 1,
alignItems: 'center' ,
},
topContainer: {
margin: 10,
borderRadius: 10,
flex: 2,
alignSelf: 'stretch',
justifyContent: 'center',
marginBottom: 20
},
screenTitle: {
fontSize: 50,
fontFamily: 'helvetica',
fontWeight: 'bold',
alignSelf: 'center',
textAlign: 'center',
color: '#4A4A4A',
},
textInput: {
fontSize: 30,
fontFamily: 'helvetica',
fontWeight: 'bold',
alignSelf: 'center',
textAlign: 'center',
color: '#007AFF',
marginTop: 30,
height: 64, width: 300
},
searchButton: {
marginTop: 20,
alignSelf: 'center',
justifyContent: 'center',
backgroundColor: '#007AFF',
borderRadius: 20,
height: 64, width: 64
},
buttonText: {
fontSize: 24,
fontFamily: 'helvetica',
fontWeight: 'bold',
color: '#FFF',
textAlign: 'center',
},
bottomContainer: {
flex: 2,
paddingRight: 10
},
listContainer: {
flex: 1
},
rowContainer: {
flex: 5,
backgroundColor:'transparent',
paddingLeft: 10, paddingTop: 10, paddingBottom: 10
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
})
module.exports = SearchScreen; |
(
