Very practical small function update example of Android application version

Each application has a function, that is, version update. I remember when I was interviewing before, the interviewer asked me to introduce some specific operations of application version update. I answered smoothly because I had done this function at that time. Now I share this with you and need to make common progress.

That's what I said:

First, we should check the version information on the home page after the user logs in. Specifically, after obtaining the local version number, we submit it to the server for judgment, and then the background will tell us whether the current version is the latest version. Then we get the download address and perform the download operation, Specifically, the input / output stream can be used to store and read files. In order to facilitate downloading, we can also use a third-party framework: xutils, which can better realize the functions of breakpoint continuation. Finally, we will download the files and call the system installation interface for installation. Since then, our update operation has been completed. Of course, One important thing is not to forget to add permissions:

<uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYstemS"/>

In general, this answer can almost achieve the effect.

Let's take a look at the specific code implementation. I'll take the app download of "public comments" as an example to see the operation of activity:

The comments here are also quite clear. I won't repeat them, but there is one thing to note. I use the xutils framework here, so I can't use it without this framework.

Finally, I attach the source code. The above is all the content of this article. I hope it will be helpful to your study and support programming tips.