获取缓存数据并清除缓存
//清除缓存
clearCache() {
let that = this;
let os = plus.os.name;
if (os == 'Android') {
let main = plus.android.runtimeMainActivity();
let sdRoot = main.getCacheDir();
let files = plus.android.invoke(sdRoot, "listFiles");
let len = files.length;
for (let i = 0; i < len; i++) {
let filePath = '' + files[i]; // 没有找到合适的方法获取路径，这样写可以转成文件路径
plus.io.resolveLocalFileSystemURL(filePath, function(entry) {
if (entry.isDirectory) {
entry.removeRecursively(function(entry) { //递归删除其下的所有文件及子目录
uni.showToast({
title: '缓存清理完成',
duration: 2000
});
that.formatSize(); // 重新计算缓存
}, function(e) {
console.log(e.message)
});
} else {
entry.remove();
}
}, function(e) {
console.log('文件路径读取失败')
});
}
} else { // ios
plus.cache.clear(function() {
uni.showToast({
title: '缓存清理完成',
duration: 2000
});
that.formatSize();
});
}
},
//获取缓存数据
formatSize() {
let that = this;
plus.cache.calculate(function(size) {
let sizeCache = parseInt(size);
console.log(sizeCache, 'sizeCache')
if (sizeCache == 0) {
that.fileSizeString = "0B";
} else if (sizeCache < 1024) {
that.fileSizeString = sizeCache + "B";
} else if (sizeCache < 1048576) {
that.fileSizeString = (sizeCache / 1024).toFixed(2) + "KB";
} else if (sizeCache < 1073741824) {
that.fileSizeString = (sizeCache / 1048576).toFixed(2) + "MB";
} else {
that.fileSizeString = (sizeCache / 1073741824).toFixed(2) + "GB";
}
console.log(that.fileSizeString, 'that.fileSizeString')
});
},
uni-热更新
在APP.vue里面
onLaunch: function() {
// let uniIdToken = uni.getStorageSync('uniIdToken');
// if (uniIdToken) {
// this.login(uni.getStorageSync('username'));
// }
console.log('App Launch');
var that = this;
// #ifdef APP-PLUS
plus.runtime.getProperty(plus.runtime.appid, function(widgetInfo) {
// console.log(widgetInfo, '版本');
uni.request({
url: 'http://10.168.1.204:9092/charge_app/update/info',
data: {
version: widgetInfo.version,
appid: widgetInfo.appid
},
method: 'POST',
success: result => {
console.log(result, '更新结果');
var data = result.data.result;
if (Number(data.status) && data.url) {
that.wgtUrl = data.url; //保存下载地址
uni.showModal({
title: '发现新版本',
content: '确认下载更新',
success: res => {
if (res.confirm) {
/* 下载软件 */
uni.showLoading({
title: '正在更新，请稍后'
});
plus.downloader
.createDownload(
data.url, {
filename: '_doc/update/' + widgetInfo.name + '/' + new Date().getTime() + '/'
},
function(res, code) {
let filePath = res.filename;
plus.runtime.install(
filePath, {
force: false
},
res => {
/* 重新启动APP资源 */
uni.hideLoading();
uni.showModal({
title: '',
content: '更新成功，确定现在重启吗？',
confirmText: '重启',
confirmColor: '#5480F9',
success: function(res) {
if (res.confirm) {
// console.log('重启', res);
plus.runtime.restart();
}
}
});
},
e => {
console.log(e);
/* 更新失败做的操作 */
}
);
}
)
.start();
// that.doUpData();
} else if (res.cancel) {
// console.log('用户点击取消');
}
}
});
}
}
});
});
},
3.整体更新 需要跳转页面
//检查更新
checkUpdate() {
var that = this;
// #ifdef APP-PLUS
plus.runtime.getProperty(plus.runtime.appid, function(widgetInfo) {
uni.request({
url: 'http://10.168.1.204:9092/charge_app/update/info',
data: {
version: widgetInfo.version,
appid: widgetInfo.appid
},
method: 'POST',
success: result => {
console.log(result, '更新结果');
var data = result.data.result;
if (Number(data.status)) {
uni.showModal({
title: '发现新版本',
content: '是否前往下载',
success: res => {
if (res.confirm) {
plus.runtime.openURL('http://10.168.1.204:8080/rtdownload/__UNI__096D2C0.wgt');
} else {
console.log('用户取消');
}
}
});
} else {
uni.showToast({
title: '当前版本为最新版本',
icon: 'none'
});
}
}
});
});
// #endif
}
