Download, install, and uninstall Android (original)

Scenario: When checking for version updates, you often need to download them from the server side and install them on your phone

Using tools: Xutils, this open source framework really takes a lot of time to read and understand, very useful, on the way! fighting!

Download: Download keyword search in github

　

1 //the reserved address provided by Google does not change the test IP address as the IP address of the computer changes2 Private Static FinalString mdownloadurl= "http://10.0.2.2:8080/xxx.apk";3 4 protected voiddownloadapk () {5 6         if(Environment.getexternalstoragestate (). Equals (7 environment.media_mounted)) {8  　　　　　　　　 //download apk to SD path9String Sdpath =environment.getexternalstoragedirectory ()Ten. GetAbsolutePath () + File.separator + "xxx.apk"; OneHttputils httputils =Newhttputils (); A  - httputils.download (Mdownloadurl, Sdpath, -                     NewRequestcallback<file>() { the  - @Override -                          Public voidOnStart () { -LOG.I (Tag, "Start Download"); +                             Super. OnStart (); -                         } +  A @Override at                          Public voidOnloading (LongTotalLongCurrent , -                                 Booleanisuploading) { -LOG.I (tag, "Downloading in progress"); -LOG.I (Tag, "total =" +Total ); -LOG.I (Tag, "current =" +Current ); -                             Super. onloading (Total, Current, isuploading); in                         } -  to @Override +                          Public voidOnsuccess (responseinfo<file>responseinfo) { -LOG.I (tag, "Download Done"); the                             //get the downloaded file path *File File =Responseinfo.result; $  　　　　　　　　　　　　　　　　 //Install apkPanax Notoginseng installapk (file); -  the                         }   +  A @Override the                          Public voidonfailure (httpexception error, String msg) { +LOG.I (tag, "Download Failed"); -                         } $  $                     }); -         } -}

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To implement the download through implicit intent

Find out the code below by querying the source.

* <data android:mimetype= "application/vnd.android.package-archive"/> * </intent-filter> * *

And then there's a simple implicit intent to start the activity process.

protected void installapk (file file) {Intent Intent = new Intent (); Intent.setaction ("Android.intent.action.VIEW"); Intent.addcategory ("Android.intent.category.DEFAULT");/* * Intent.setdata (uri.fromfile (file)); * Intent.settype ("application/vnd.android.package-archive"); */
is equivalent to the commented code, but the following method is recommended, there is a finish problem with the annotated method Intent.setdataandtype (uri.fromfile (file), "application/ Vnd.android.package-archive "); StartActivity (intent);}

Uninstall the application the same way, find the corresponding source code, see how the Android system is implemented

<intent-filter>    <action android:name= "Android.intent.action.VIEW"/>    <action android:name= "Android.intent.action.DELETE"/>    <category android:name= "Android.intent.category.DEFAULT"/>    <data android:scheme= "Package"/></intent-filter>

Ibid., Open the intention

protected void Uninstall () {Intent Intent = new Intent (); intent.setaction (Intent.action_delete); Intent.setdata ( Uri.parse ("Application package name to uninstall"); StartActivity (intent);}

　　

Download, install, and uninstall Android (original)