App update

App There are two main ways to update

1. Package update
2. Hot update
   Recent project encounters app Update questions , Android and iOS to update .
   Today I mainly talk about app Package update （Android And IOS）

Function realization effect

android： Check for new versions , Background download , The installation page will pop up automatically
IOS： Jump appStore app Update the interface

One 、 Click Detect version

Directly on the code ha , There are renderings in the back

adopt plus.runtime.getProperty obtain APP Version information ,

//  obtain APP Version number 
			getVersion() {
    
				let that = this;
				plus.runtime.getProperty(plus.runtime.appid, (wgtinfo) => {
    
					this.version = wgtinfo.version.split('.').join('')
				})
			},

Get the latest version of customized information on the server
The custom information is as follows

// Android APP Update data dynamically 
{
    
	"code":"200",
	"version":"1.2.7",   // The latest version 
	"iosappid":"*********",   //APP stay ios The only one in id
	"url":"http://xxxxxx/xx/yy/xxxx.apk"    //android Installation package （1.2.7）
}

Get server information , Judge the present app Whether the version information is smaller than the customized version information of the server

UpdatedVersion() {
       // Test version 
				let that = this
				this.$util.appReqeust('get', AppToUpdate, "", false).then(res => {
    
					let Myversion = res.version.split('.').join('')
					if (that.version < Myversion) {
     // There's a new version 
						that.content = ` Can be updated to  **${
      res.version}`
						that.LoadreUrl = res.url
						that.show = true
						that.IosAppid = res.iosappid
					} else {
     // No new version 
						that.showToast()
					}
				})
			},

Confirm update

SubmitUpdate() {
        // Click to confirm the update 
				let platform = uni.getSystemInfoSync().platform;
				this.show = false
				if (platform == 'android') {
    
					var dtask = plus.downloader.createDownload(this.LoadreUrl, {
    
						filename: "_downloads/"
					}, function(d, status) {
    
						//  Download complete  
						if (status == 200) {
    
							plus.runtime.install(plus.io.convertLocalFileSystemURL(d
								.filename), {
    }, {
    }, function(error) {
    
								plus.nativeUI.closeWaiting();
								uni.showToast({
    
									title: ' Installation failed ！',
									icon: "none",
									mask: false,
									duration: 1500
								});
							})
						} else {
    
							plus.nativeUI.closeWaiting();
							uni.showToast({
    
								title: ' Update failed ！',
								icon: "none",
								mask: false,
								duration: 1500
							});
						}
					});
					var prg = 0;
					var showLoading = plus.nativeUI.showWaiting(" Downloading ");
					dtask.addEventListener('statechanged', function(task, status) {
    
						switch (task.state) {
    
							case 1:
								showLoading.setTitle(" Downloading ");
								break;
							case 2:
								showLoading.setTitle(" Connected to server ");
								break;
							case 3:
								prg = parseInt(
									(parseFloat(task.downloadedSize) /
										parseFloat(task.totalSize)) *
									100
								);
								showLoading.setTitle(" Version update , Downloading " + prg + "% ");
								break;
							case 4:
								plus.nativeUI.closeWaiting();
								// Download complete 
								break;
						}
					});
					dtask.start();
				} else {
    
					// ios Auto update 
					let appleId = this.IosAppid
					plus.runtime.launchApplication({
    
						action: `itms-apps://itunes.apple.com/cn/app/id${
      appleId}?mt=8`
					}, function(e) {
    
						// console.log('Open system default browser failed: ' + e.message);
					});
				}
			},

If a new version is detected , User click Update
android End It will download the information on the server in the background apk file , When you're done, open , as long as apk Of documents appid Consistent with the application package name , The installation will replace the lower version apk Installation package
IOS Will jump to App store market , Users need to manually click Update . appleId Can be in IOS Developer Center APP View in info

design sketch

Test version

Confirm update

Updating （android）

IOS Click to update , Will jump to the mobile application center App store Manually follow the new version