Android APK version update

<span id="Label3"></p><p><p><span style="font-size:32px; color:#FF0000">Android APK version update</span></p></p><p>/**<br>* Get version Name<br>*<br>* @return Version<br>*/<br>Private String getversionname () {<br>try {<br>Get an instance of Packagemanager<br>Packagemanager Packagemanager = Getpackagemanager ();<br>Getpackagename () is the package name of your current class, and 0 means to get version information<br>PackageInfo Packinfo = Packagemanager.getpackageinfo (<br>Getpackagename (), 0);<br>Version = Packinfo.versionname;//versionname is to get the release name and version number, etc...<br>} catch (namenotfoundexception E) {<br>E.printstacktrace ();<br>}<br>Return version;<br>}</p><p><p>Activity class Invocation</p></p><p><p>Here to check if the version needs to be updated<br>Updatemanager Mupdatemanager = new Updatemanager (<br>settingactivity.this);<br>Mupdatemanager.checkupdateinfo ();</p></p><p>public class Updatemanager {<br><br>Private Context mcontext;<br>/* Download Package Installation path */<br>private static final String Savepath = "//sdcard//updatedemo//";<br>private static final String Savefilename = Savepath + "licaike.apk";<br>/* progress bar with notification UI refreshed handler and MSG constants */<br><br>private int progress;<br>Private Progressdialogutil pdu;<br><br>Private Boolean Interceptflag = true;<br><br>@SuppressLint ("handlerleak")<br>Private Handler Mhandler = new Handler () {<br>public void Handlemessage (Message Msg) {<br>Switch (msg.what) {<br>Case 0x123:<br>Pdu.setprogress (progress);<br>Break<br>Case 0x124://install APK<br>File Apkfile = new file (savefilename);<br>If (!apkfile.exists ()) {<br>Return<br>}<br>Intent i = new Intent (intent.action_view);<br>I.setdataandtype (uri.parse ("file://" + apkfile.tostring ()),<br>"application/vnd.android.package-archive");<br>Mcontext.startactivity (i);<br>Pdu.dismiss ();<br>Break<br>Default<br>Break<br>}<br>};<br>};<br><br>Public Updatemanager (context Context) {<br>This.mcontext = context;<br>}<br><br>The external interface lets the main activity call<br>public void Checkupdateinfo () {<br>Final Alertdialogutil dialogutil = new Alertdialogutil (mcontext, false,<br>null);<br>Dialogutil.setmessage ("please Update the new version");<br>Dialogutil.setbtnpositivevalue ("update");<br>Dialogutil.setpositiveclicklistener (new View.onclicklistener () {<br><br>@Override<br>public void OnClick (View Arg0) {<br>Showdownloaddialog ();<br>Dialogutil.dismiss ();<br>}<br>});<br>Dialogutil.setbtnnegativevalue ("cancel");<br>Dialogutil.setnegativeclicklistener (new View.onclicklistener () {<br><br>@Override<br>public void OnClick (View Arg0) {<br>Dialogutil.dismiss ();<br>}<br>});<br>Dialogutil.show ();<br><br>}<br><br>private void Showdownloaddialog () {<br>Download apk<br>Downloadthread ();<br>PDU = new Progressdialogutil (mcontext, false, null);<br>Pdu.setmessage ("software is being updated ...");<br>Pdu.setbtnnegativevalue ("cancel");<br>Pdu.setnegativeclicklistener (new View.onclicklistener () {<br><br>@Override<br>public void OnClick (View Arg0) {<br>Interceptflag = false;<br>Pdu.dismiss ();<br>}<br>});<br>Pdu.show ();<br>}<br><br>private void Downloadthread () {<br>New Thread (new Runnable () {<br><br>@Override<br>public void Run () {<br>InputStream is = null;<br>FileOutputStream fos = null;<br>try {<br>Return the installation package URL<br>String Apkurl = "http://d.m.hexun.com/app/licaike.apk";<br>URL url = new URL (apkurl);<br>HttpURLConnection conn = (httpurlconnection) URL<br>. OpenConnection ();<br>Conn.connect ();<br>int length = Conn.getcontentlength ();<br>is = Conn.getinputstream ();<br><br>File File = new file (savepath);<br>If (!file.exists ()) {<br>File.mkdir ();<br>}<br>String Apkfile = savefilename;<br>File Apkfile = new file (apkfile);<br>FOS = new FileOutputStream (apkfile);<br><br>int count = 0;<br>byte buf[] = new byte[1024];<br>While (interceptflag) {//click Cancel to stop the Download.<br>int numread = Is.read (buf);<br>Count + = numread;<br>progress = (int) ((float) Count/length) * 100);<br>Update progress<br>Mhandler.sendemptymessage (0x123);<br>If (numread <= 0) {<br>Download Complete Notification Installation<br>Mhandler.sendemptymessage (0x124);<br>Break<br>}<br>Fos.write (buf, 0, numread);<br>}<br>} catch (Exception E) {<br>E.printstacktrace ();<br>} finally {<br>try {<br>If (fos! = Null)<br>Fos.close ();<br>If (is = Null)<br>Is.close ();<br>} catch (Exception E) {<br>} finally {<br>FOS = null;<br>is = null;<br>}<br>}<br><br>}<br>}). Start ();<br>}<br><br>}</p><p><p><span style="color:#FF0000">Alertdialog Tool class My blog has been written, you can see yourself write, you can paste it</span></p></p><p><p>http://blog.csdn.net/menglele1314/article/details/45718501<br></p></p><p><p>The progress bar you go to the dialog box to drag a<br></p></p><p><p><br></p></p><p><p>Android APK version update</p></p></span>