Android server and client design APK upgrade

Http://blog.csdn.net/muyu114/article/details/6623509

Server Design: There should be many design methods. here is one of my methods: A. Create a folder under the server project to store the APK installation file: B. Create a resource file named apkversion. properties under SRC. The attributes are defined as follows: View plaincopy to clipboardprint? Apkversion = 1 saved version Apksize = 550kb Apkpath = http: // xx8080/srv/APK/demo.apk upgrade File Apkversion = 1 saved version Apksize = 550kb Apkpath = http: // xx8080/srv/APK/demo.apk upgrade File C. Define a servlet to obtain information in the resource: Definition class: updateapkservlet. Java View plaincopy to clipboardprint? // Obtain resource file information Static { Properties PPT = new properties (); Try { PPT. Load (updateapkservlet. Class. getresourceasstream ("/apkversion. properties ")); Apkversion = PPT. getproperty ("apkversion "); Apksize = PPT. getproperty ("apksize "); Apkpath = PPT. getproperty ("apkpath ");} Catch (exception e ){ E. printstacktrace (); } } // Obtain resource file information Static { Properties PPT = new properties (); Try { PPT. Load (updateapkservlet. Class. getresourceasstream ("/apkversion. properties ")); Apkversion = PPT. getproperty ("apkversion "); Apksize = PPT. getproperty ("apksize "); Apkpath = PPT. getproperty ("apkpath ");} Catch (exception e ){ E. printstacktrace (); } } Obtain the resource, and then generate a JSON string to return to the client for processing. Note: When the Client Version is updated, the server only needs to copy the APK file to the APK directory and update the information in the apkversion. properties file. Remember. Client design: 1. The client first obtains the server version information (obtained through HTTP ). 2. See the following code for how to obtain the version information of the local client: View plaincopy to clipboardprint? /** * Obtain the version information of the local application. * @ Return */ Private int getapkversion (){ // Determine the APK version Int sdcardversion = 0; String apkfilepath = "sdcard/demo.apk"; // installation package path Packagemanager PM = getpackagemanager (); Packageinfo info = PM. getpackagearchiveinfo (apkfilepath, packagemanager. get_activities ); If (info! = NULL ){ Sdcardversion = info. versioncode; // obtain the version information. Log. V (TAG, "version =" + sdcardversion ); } Return sdcardversion; } /** * Obtain the version information of the local application. * @ Return */ Private int getapkversion (){ // Determine the APK version Int sdcardversion = 0; String apkfilepath = "sdcard/demo.apk"; // installation package path Packagemanager PM = getpackagemanager (); Packageinfo info = PM. getpackagearchiveinfo (apkfilepath, packagemanager. get_activities ); If (info! = NULL ){ Sdcardversion = info. versioncode; // obtain the version information. Log. V (TAG, "version =" + sdcardversion ); } Return sdcardversion; } 3. Compare versions. if the version is the same, update is not performed. Here, we will insert the Client Version settings: The Client Version is set in androidmanifest. in the XML file, there are two attributes that can be used to set version information. Android: versioncode = "1" version number Android: versionname = "1.1" version name must correspond to the server. 4. required permission settings View plaincopy to clipboardprint? Sdcard access permission: Uses-Permission Android: Name = "android. Permission. write_external_storage" Network access permission: Uses-Permission Android: Name = "android. Permission. Internet" Sdcard access permission: Uses-Permission Android: Name = "android. Permission. write_external_storage" Network access permission: Uses-Permission Android: Name = "android. Permission. Internet" 5. Update and install. When you click an application, check for updates. For more information about the code, see: // Prompt in the pop-up box View plaincopy to clipboardprint? Public handler = new handler (){ Public void handlemessage (Message MSG ){ Super. handlemessage (MSG ); Dialog dialog = new alertdialog. Builder (mainactivity. This). settitle ("system update"). setmessage ("new version found, please update! ") // Set content . Setpositivebutton ("OK", // set the OK button New dialoginterface. onclicklistener (){ @ Override Public void onclick (dialoginterface dialog, int which ){ Pbar = new progressdialog (mainactivity. This ); Pbar. settitle ("downloading "); Pbar. setmessage ("Please wait ..."); Pbar. setprogressstyle (progressdialog. style_spinner ); Downfile (apkpath ); } }). Setnegativebutton ("cancel", new dialoginterface. onclicklistener (){ Public void onclick (dialoginterface dialog, int whichbutton ){ // Click "cancel ". } }). Create (); // create // Display dialog box Dialog. Show (); } }; Public handler = new handler (){ Public void handlemessage (Message MSG ){ Super. handlemessage (MSG ); Dialog dialog = new alertdialog. Builder (mainactivity. This). settitle ("system update"). setmessage ("new version found, please update! ") // Set content . Setpositivebutton ("OK", // set the OK button New dialoginterface. onclicklistener (){ @ Override Public void onclick (dialoginterface dialog, int which ){ Pbar = new progressdialog (mainactivity. This ); Pbar. settitle ("downloading "); Pbar. setmessage ("Please wait ..."); Pbar. setprogressstyle (progressdialog. style_spinner ); Downfile (apkpath ); } }). Setnegativebutton ("cancel", new dialoginterface. onclicklistener (){ Public void onclick (dialoginterface dialog, int whichbutton ){ // Click "cancel ". } }). Create (); // create // Display dialog box Dialog. Show (); } }; // Download View plaincopy to clipboardprint? /** * Download APK file by URL * @ Param URL */ Public void downfile (final string URL ){ Pbar. Show (); New thread (){ Public void run (){ Httpclient client = new defaulthttpclient (); // Params [0] indicates the URL of the connection. Httpget = new httpget (URL ); Httpresponse response; Try { Response = client.exe cute (get ); Httpentity entity = response. getentity (); Long length = entity. getcontentlength (); Inputstream is = entity. getcontent (); Fileoutputstream = NULL; If (is! = NULL ){ File file = new file (environment. getexternalstoragedirectory (), "demo.apk "); Fileoutputstream = new fileoutputstream (File ); Byte [] Buf = new byte [1, 1024]; Int CH =-1; Int COUNT = 0; While (CH = is. Read (BUF ))! =-1 ){ // Baos. Write (BUF, 0, CH ); Fileoutputstream. Write (BUF, 0, CH ); Count + = CH; If (length> 0 ){ } } } Fileoutputstream. Flush (); If (fileoutputstream! = NULL ){ Fileoutputstream. Close (); } Down (); } Catch (clientprotocolexception e ){ E. printstacktrace (); } Catch (ioexception e ){ E. printstacktrace (); } } }. Start (); } Public void down (){ Handler. Post (New runnable (){ Public void run (){ Pbar. Cancel (); Update (); } }); } /** * Download APK file by URL * @ Param URL */ Public void downfile (final string URL ){ Pbar. Show (); New thread (){ Public void run (){ Httpclient client = new defaulthttpclient (); // Params [0] indicates the URL of the connection. Httpget = new httpget (URL ); Httpresponse response; Try { Response = client.exe cute (get ); Httpentity entity = response. getentity (); Long length = entity. getcontentlength (); Inputstream is = entity. getcontent (); Fileoutputstream = NULL; If (is! = NULL ){ File file = new file (environment. getexternalstoragedirectory (), "demo.apk "); Fileoutputstream = new fileoutputstream (File ); Byte [] Buf = new byte [1, 1024]; Int CH =-1; Int COUNT = 0; While (CH = is. Read (BUF ))! =-1 ){ // Baos. Write (BUF, 0, CH ); Fileoutputstream. Write (BUF, 0, CH ); Count + = CH; If (length> 0 ){ } } } Fileoutputstream. Flush (); If (fileoutputstream! = NULL ){ Fileoutputstream. Close (); } Down (); } Catch (clientprotocolexception e ){ E. printstacktrace (); } Catch (ioexception e ){ E. printstacktrace (); } } }. Start (); } Public void down (){ Handler. Post (New runnable (){ Public void run (){ Pbar. Cancel (); Update (); } }); } // Update and upgrade View plaincopy to clipboardprint? Public void Update (){ Intent intent = new intent (intent. action_view ); Intent. setdataandtype (URI. fromfile (new file ("/sdcard/demo.apk"), "application/vnd. Android. Package-Archive "); Startactivity (intent ); } Public void Update (){ Intent intent = new intent (intent. action_view ); Intent. setdataandtype (URI. fromfile (new file ("/sdcard/demo.apk"), "application/vnd. Android. Package-Archive "); Startactivity (intent ); }