Android Online Update apk

1. Get information about the current package:

1 Packagemanager manager = Main.this. Getpackagemanager (); 2 try {3     packageinfo info = manager.getpackageinfo (Main.this.getPackageName (), 0); 4     String appversion = info.versionname; Version Name 5     currentversioncode = Info.versioncode;//Version number 6     System.out.println (Currentversioncode + "" + Appvers ION); 7} catch (Namenotfoundexception e) {8    }11//above is to get version data from manifest, using VERSIONCODE12// From the server to obtain the latest version of Versioncode, compared to Showupdatedialog ();     

2. Start the thread directly for download management and install:

1 Private voidShowupdatedialog () {2Alertdialog.builder Builder =NewAlertdialog.builder ( This);3Builder.settitle ("New version detected");4Builder.setmessage ("Do you want to download the update?"));5Builder.setpositivebutton ("Update",NewDialoginterface.onclicklistener () {6 7 @Override8              Public voidOnClick (Dialoginterface Dialog,intwhich) {9                 //TODO auto-generated Method Stub One Showdownloaddialog (); Dialog.dismiss (); -             } the}). Setnegativebutton ("Update Later",NewDialoginterface.onclicklistener () { -  - @Override -              Public voidOnClick (Dialoginterface Dialog,intwhich) { +                 //TODO auto-generated Method Stub -Dialog.dismiss (); +             } A         }); at builder.show (); -}

3. Pop up the download update progress box to download the APK update:

1 Private voidShowdownloaddialog () {2Alertdialog.builder Builder =NewBuilder (mcontext);3Builder.settitle ("Software version update");4         5         FinalLayoutinflater Inflater =Layoutinflater.from (mcontext);6View v = inflater.inflate (r.layout.progress,NULL);7Mprogress =(ProgressBar) V.findviewbyid (r.id.progress);8         9 Builder.setview (v);TenBuilder.setnegativebutton ("Cancel",NewOnclicklistener () { One @Override A              Public voidOnClick (Dialoginterface Dialog,intwhich) { - Dialog.dismiss (); -Interceptflag =true; the             } -         }); -Downloaddialog =builder.create (); - downloaddialog.show (); +          - downloadapk (); +}

4. Start the thread to download the task:

1  /** 2      * Download apk3      */ 4     5     Private void downloadapk () {6         New Thread (mdownapkrunnable); 7         Downloadthread.start (); 8     }

5. Control for download update Progress box: Interceptflag

1 PrivateRunnable mdownapkrunnable =NewRunnable () {2 @Override3          Public voidrun () {4             Try {5URL url =NewURL (apkurl);6             7HttpURLConnection conn =(HttpURLConnection) url.openconnection ();8 Conn.connect ();9                 intLength =conn.getcontentlength ();TenInputStream is =Conn.getinputstream (); One                  AFile File =NewFile (savepath); -                 if(!file.exists ()) { - File.mkdir (); the                 } -String Apkfile =Savefilename; -File Apkfile =NewFile (apkfile); -FileOutputStream fos =NewFileOutputStream (apkfile); +                  -                 intCount = 0; +                 byteBuf[] =New byte[1024]; A                  at                  Do{                       -                     intNumread =Is.read (BUF); -Count + =Numread; -Progress = (int)(((float) count/length) * 100); -                     //Update Progress - mhandler.sendemptymessage (down_update); in                     if(Numread <= 0){     -                         //Download complete notification installation to mhandler.sendemptymessage (down_over); +                          Break; -                     } theFos.write (buf,0, numread); *} while(!interceptflag);//Click Cancel to stop the download. $                 Panax Notoginseng fos.close (); - is.close (); the}Catch(malformedurlexception e) { + e.printstacktrace (); A}Catch(IOException e) { the e.printstacktrace (); +             } -              $         } $};

6. Update the progress bar of the prompt box:

1 PrivateHandler Mhandler =NewHandler () {2          Public voidhandlemessage (Message msg) {3             Switch(msg.what) {4              Casedown_update:5 mprogress.setprogress (progress);6                  Break;7              CaseDown_over:8                 9 installapk ();Ten                  Break; One             default: A                  Break; -             } -         }; the};

7. Download complete, APK installation:

1  /**2 * Install apk3      */4     Private voidinstallapk () {5File Apkfile =NewFile (savefilename);6         if(!apkfile.exists ()) {7             return;8         }    9Intent i =NewIntent (intent.action_view);TenI.setdataandtype (Uri.parse ("file://" + apkfile.tostring ()), "Application/vnd.android.package-archive");  One mcontext.startactivity (i); A      -}

Android Online Update apk