React Native Cookbook by Dan Ward
Author:Dan Ward
Language: eng
Format: epub
Tags: COM051390 - COMPUTERS / Programming / Open Source, COM051260 - COMPUTERS / Programming Languages / JavaScript, COM051460 - COMPUTERS / Programming / Mobile Devices
Publisher: Packt Publishing
Published: 2019-01-31T14:03:33+00:00
onSubmitPress = () => {
const requestBody = {
title: 'foo',
body: 'bar',
userId: 1
};
if (this.state.isConnected) {
this.submitData(requestBody);
} else {
this.pendingSync = requestBody;
this.setState({syncStatus : 'Pending'});
}
}
Now, we can build out our UI, which will render the Submit Data button and show the current connection status, sync status, and most recent response from the API:
render() {
const {
isConnected,
syncStatus,
serverResponse
} = this.state;
return (
<View style={styles.container}>
<TouchableOpacity onPress={this.onSubmitPress}>
<View style={styles.button}>
<Text style={styles.buttonText}>Submit Data</Text>
</View>
</TouchableOpacity>
<Text style={styles.status}>
Connection Status: {isConnected ? 'Connected' :
'Disconnected'}
</Text>
<Text style={styles.status}>
Sync Status: {syncStatus}
</Text>
<Text style={styles.status}>
Server Response: {serverResponse}
</Text>
</View>
);
}
You can disable the network connection in the simulator in the same way as described in step 10 of the previous recipe:
Download
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Coding Theory | Localization |
Logic | Object-Oriented Design |
Performance Optimization | Quality Control |
Reengineering | Robohelp |
Software Development | Software Reuse |
Structured Design | Testing |
Tools | UML |
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