Android Download Update code

Actually was yesterday anti-compile an apk, give it to add an automatic update function to use. In order to Smali under the convenient view, code write not standard, anyway to the smali are a hanging sample ~ ~ ~

Permissions:     <uses-permission android:name= "Android.permission.WRITE_EXTERNAL_STORAGE"/>    <uses-permission Android:name= "Android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>    <uses-permission android:name= " Android.permission.INTERNET "/>

    //start===========     Public voidUpdata () {NewThread () {@Override Public voidrun () {request (Apiurl);    }}.start (); } String newapkname= "updata.apk"; String Apiurl= "Http://192.168.1.101:8080/udate.txt"; //Request Interface     Public voidrequest (String httpurl) {URL URL=NULL; Try{URL=NewURL (Httpurl); HttpURLConnection Conn=(HttpURLConnection) url.openconnection (); InputStream is=Conn.getinputstream (); String s=toString (IS); Jsonobject Jsonobject=NewJsonobject (s); Double Versioncode= Jsonobject.getdouble ("Versioncode");//Remote VersionString Versionname =Getversionname (); Doublev =double.parsedouble (versionname); if(Versioncode >v) {                //Update DownloadDownLoadFile (jsonobject.getstring ("UpdateUrl")); }        } Catch(Exception e) {e.printstacktrace (); }} Handler Handler=NewHandler () {@Override Public voidhandlemessage (Message msg) {Switch(msg.what) { Case1: Showupdatadilg ();  Break;    }        }    }; //version prompt dialog box     Public voidShowupdatadilg () {NewAlertdialog.builder (mainactivity. This). Settitle (Prompted). Setmessage ("Do you want to install the latest version?" "). Setpositivebutton ("OK",NewDialoginterface.onclicklistener () { Public voidOnClick (Dialoginterface Dialog,intwhich)                    {uodate (); }}). Setnegativebutton ("Cancel",NewDialoginterface.onclicklistener () { Public voidOnClick (Dialoginterface Dialog,intwhich)    {}}). Show (); }    //Get version    PrivateString Getversionname ()throwsException {Packagemanager Packagemanager=Getpackagemanager (); //Getpackagename () is the package name of your current class, and 0 means to get version informationPackageInfo packinfo = Packagemanager.getpackageinfo (Getpackagename (), 0); String version=Packinfo.versionname; returnversion; }    //Install apk     Public voiduodate () {//String str = "/" + Newapkname;//String fileName = environment.getexternalstoragedirectory () + str;//Intent Intent = new Intent (intent.action_view);//Intent.setdataandtype (Uri.fromfile (New File), "application/vnd.android.package-archive");//startactivity (intent);String str= "/sdcard/update/" +Newapkname; Intent Intent=NewIntent (Intent.action_view); Intent.setdataandtype (Uri.fromfile (NewFile (str)),"Application/vnd.android.package-archive");    StartActivity (Intent); }//dialog box determines     Public voidisupdate () {String str= "/" +Newapkname; String FileNames= Environment.getexternalstoragedirectory () +str; Intent Intent=NewIntent (Intent.action_view); Intent.setdataandtype (Uri.fromfile (NewFile (FileNames)), "Application/vnd.android.package-archive");    StartActivity (Intent); }    protectedfile DownLoadFile (String httpurl) {file Tmpfile=NewFile ("/sdcard/update"); if(!tmpfile.exists ())        {Tmpfile.mkdir (); }        FinalFile File =NewFile ("/sdcard/update/" +newapkname); Try{URL URL=NewURL (Httpurl); Try{HttpURLConnection conn=(HttpURLConnection) url.openconnection (); InputStream is=Conn.getinputstream (); FileOutputStream Fos=Newfileoutputstream (file); byte[] buf =New byte[256];                Conn.connect (); DoubleCount = 0; if(Conn.getresponsecode () >= 400) {Toast.maketext (mainactivity. This, "Connection timed out", Toast.length_short). Show (); } Else {                     while(Count <= 100) {                        if(Is! =NULL) {                            intNumread =Is.read (BUF); if(Numread <= 0) {                                 Break; } Else{fos.write (buf,0, Numread); }                        } Else {                             Break;                }}} fos.close ();                Is.close ();                Conn.disconnect (); //Download SuccessfulHandler.sendemptymessage (1); } Catch(IOException e) {e.printstacktrace (); }        } Catch(malformedurlexception e) {e.printstacktrace (); }        returnfile; }    //input stream converted to string     Publicstring toString (InputStream is) {string result=NULL; Try {            //constructs an output stream (byte queue output stream)Bytearrayoutputstream BAOs =NewBytearrayoutputstream (); //a byte array that is used to store the resulting byte data            byte[] Bys =New byte[1024]; intLen = 0; //iterate through the full byte data             while(len = Is.read (bys))! =-1) {baos.write (bys,0, Len); }            //convert byte data to a stringresult =NewString (Baos.tobytearray ());            Is.close ();        Baos.close (); } Catch(IOException e) {e.printstacktrace (); }        returnresult; }    //end===========

Android Download Update code