How to use the react-native-update.checkUpdate function in react-native-update
To help you get started, we’ve selected a few react-native-update examples, based on popular ways it is used in public projects.
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reactnativecn / react-native-pushy / Example / testHotUpdate / src / index.js View on Github 
checkUpdate = async () => {
let info;
try {
info = await checkUpdate(appKey);
} catch (err) {
console.warn(err);
return;
}
if (info.expired) {
Alert.alert('提示', '您的应用版本已更新,请前往应用商店下载新的版本', [
{
text: '确定',
onPress: () => {
info.downloadUrl && Linking.openURL(info.downloadUrl);
},
},
]);
} else if (info.upToDate) {
Alert.alert('提示', '您的应用版本已是最新.');
} else {checkUpdate = () => {
checkUpdate(appKey).then(info => {
if (info.expired) {
Alert.alert('提示', '您的应用版本已更新,请前往应用商店下载新的版本-', [
{ text: '确定', onPress: () => { info.downloadUrl && Linking.openURL(info.downloadUrl) } },
]);
} else if (info.upToDate) {
Alert.alert('提示', '您的应用版本已是最新.');
} else {
Alert.alert('提示', '检查到新的版本' + info.name + ',是否下载?\n' + info.description, [
{ text: '是', onPress: () => { this.doUpdate(info) } },
{ text: '否', },
]);
}
}).catch(err => {
Alert.alert('提示', '更新失败.');
});
};check = () => {
checkUpdate(appKey).then(info => {
if (info.expired) {
Alert.alert('提示', '您的应用版本已更新,请前往应用商店下载新的版本', [
{text: '确定', onPress: ()=>{info.downloadUrl && Linking.openURL(info.downloadUrl)}},
])
} else if (info.upToDate) {
Alert.alert('提示', '您的应用版本已是最新.')
} else {
Alert.alert('提示', '检查到新的版本'+info.name+',是否下载?\n'+ info.description, [
{text: '是', onPress: ()=>{this.doUpdate(info)}},
{text: '否',},
])
}
}).catch(err => {
Alert.alert('提示', '更新失败.')
})
}
