Android App detects version updates with viewer mode

First step: Define the viewer

Public interface Checkversionobserver {/** * Detected version update succeeded in Mainactivity * @param mainentity */public void Onchecknewversucci Nmain (mainentity mainentity);/** * Detect new version failure * @param errorCode * @param msg */public void onchecknewverfail (int errorcode,s Tring msg);/** * Detect new version Success * @param token * @param msg */public void Onchecknewversucc (checkupdataentity newentity);/** * Detection To version can be upgraded and able to upgrade (contains memory card) * @param token * @param msg */public void Oncheckvercanupdate (String promt, String versionname);/** * Detected version can be upgraded, but not upgradeable (no memory card) */public void Oncheckvercannotupdate ();/** * Download failed * @param code * @param err */public void ONUPDA Teerror (string topic, String msg, string btnstr, final int type);/** * Updating download * @param totalsize * @param downsize */publi c void ondataupdating (int totalsize, int downsize);}

Step Two: Detect if the system version upgrades the logic

public class Checknewversionlogic extends Baselogic<checkversionobserver>implements updatedownloadresponse { Private Context mcontext;private Activity mactivity;private final static int download_update = 1;private final static int download_updating = 2;private final static int download_error = 3;public Handler mdownloadhandler;private String Downloadu Rl;private ProgressDialog mdialog = null;private int mdownfilesize = 0;private int mdownsize = 0;public CheckNewVersionLog IC () {}public checknewversionlogic (context context) {This.mcontext = Context;mactivity = (Activity) mcontext; Mdownloadhandler = new Downloadhandler ();} /** * Determine if the test update request was successful * * @param vercode */public void checknewversion (final String vercode) {new Backforetask (true) {Checku Pdataentity result = null, @Overridepublic void Onfore () {//TODO auto-generated method stubif (result = = null) {FIRECHECKN Ewversionfail ( -1, null);} else if (Result.getretcode ()! = 0) {firechecknewversionfail (Result.getretcode (), Result.getmessage ());} else {FIRECHECKNEWVERSIONSUCC (result);}} @Overridepublic void Onback () {//TODO auto-generated Method Stubresult = Protocolimpl.getinstance (). Checkversion ( Vercode);}};} /** * Main interface Check UPDATE * @param token * @param firstopen * @param mobiletype * @param mobilesys * @param vercode */public void Chec Knewverinmain (final int firstopen,final string mobiletype, final string mobilesys, final string vercode) {New Backforetask (true) {mainentity result = null; @Overridepublic void Onfore () {//TODO auto-generated method stubif (result = = null) {FIRECHECKN Ewversionfail ( -1, null);} else if (Result.getretcode ()! = 0) {firechecknewversionfail (Result.getretcode (), Result.getmessage ());} else { Firechecknewversuccinmain (result);}} @Overridepublic void Onback () {//TODO auto-generated Method Stubresult = Protocolimpl.getinstance (). Checkverinmain ( Firstopen, Mobiletype, Mobilesys, Vercode);}};} private void Firechecknewversuccinmain (mainentity mainentity) {list<checkversionobserver> tmpList = Getobservers (); foR (Checkversionobserver observer:tmplist) {observer.onchecknewversuccinmain (mainentity);}} /** * Version update request failed * * @param errorCode * @param msg */private void firechecknewversionfail (int errorCode, String msg) {list& Lt checkversionobserver> tmplist = Getobservers (); for (Checkversionobserver observer:tmplist) { Observer.onchecknewverfail (ErrorCode, MSG);}} /** * Version update request succeeded * * @param newentity */private void firechecknewversionsucc (checkupdataentity newentity) {List<checkver sionobserver> tmplist = Getobservers (); for (Checkversionobserver observer:tmplist) {OBSERVER.ONCHECKNEWVERSUCC ( newentity);}} /** * Detected version can be upgraded and can upgrade (contains memory card) * * @param promt * @param versionname */private void Firecheckvercanupdate (String promt, St Ring versionname) {list<checkversionobserver> tmplist = Getobservers (); for (Checkversionobserver Observer: Tmplist) {observer.oncheckvercanupdate (promt, Versionname);}} /** * Detected version can be upgraded, but cannot be upgraded (no memory card) */private void Firecheckvercannotupdate () {List<checkversionobserver> tmplist = Getobservers (); for (Checkversionobserver observer:tmplist) {observer.oncheckvercannotupdate ();}} /** * Download Failed * * @param code * @param err */private void Fireonerror (String topic, String msg, string btnstr,final int type ) {list<checkversionobserver> tmplist = Getobservers (); for (Checkversionobserver observer:tmplist) { Observer.onupdateerror (topic, MSG, BTNSTR, type);}} /** * Downloading * * @param totalsize * @param downsize */private void fireondataupdating (int downfilesize, int downsize) {List <CheckVersionObserver> tmplist = Getobservers (); for (Checkversionobserver observer:tmplist) { Observer.ondataupdating (downfilesize, downsize);}} /** * Download update */public void Downloadupdate () {mdownloadhandler.sendemptymessage (download_update);} /** * Downloading Updates * * @param totalsize * @param downsize */public void downloadupdating (int totalsize, int downsize) {Mdownfil Esize = Totalsize;mdownsize = Downsize;mdownloadhandler.sendemptymessage (download_updating);} /** * Download Failed */pubLIC void Downloaderror () {mdownloadhandler.sendemptymessage (download_error);} /*** * Select whether to update version */public void checkversion (int serververcode, String promt, String versionname, string url) {log.i ("Ciyunu Pdate ", Serververcode +" "); System.out.println ("Serververcode" + serververcode); int appvercode = 1;try {Appvercode = Mcontext.getpackagemanager (). Getpackageinfo (Mcontext.getpackagename (), 0). Versioncode; LOG.I ("Ciyunupdate", Appvercode + ""); System.out.println ("Appvercode" + Appvercode);} catch (Namenotfoundexception e) {e.printstacktrace ();} if (Serververcode > Appvercode) {if (! Fileutil.issdcardexist ()) {/* * ShowDialog (mcontext.getstring (r.string.str_version_update), * mcontext.getresources (). getString (R.string.no_sdcard), * mcontext.getresources (). getString (R.string.sure), 0); */firecheckvercannotupdate ();} else {//Popupdatedlg (promt,versionname);d Ownloadurl = Url;firecheckvercanupdate (promt, Versionname);}}} /** * * @Description: Download Update processor * @author: * @see: * @since: * @copyright ©ciyun.cn * @Date: August 12, 2014 */private class Downloadhandler extends Handler {/** * {@inheritDoc} * * @see Android.os.Handler #handleMessage (android.os.Message) */@Overridepublic void Handlemessage (Message msg) {super.handlemessage (msg); Switch (msg.what) {case download_update: {new Thread () {@Overridepublic void run () {super.run (); if ( Utils.isexternalstorageremovable ()) {Fileutil.createfileex (healthapplication.updatafilename); Httppostengine service = new Httppostengine (); Service.downloadupdatefile (Checknewversionlogic.this,downloadurl, FileUtil.updateFile.getPath ());}}. Start ();} Break;case download_updating:fireondataupdating (mdownfilesize, mdownsize); Break;case DOWNLOAD_ERROR:fireOnError ( Mcontext.getstring (R.string.str_version_update), mcontext.getstring (R.string.str_download_err), Mcontext.getresources (). getString (R.string.sure), 0); break;}}}  @Overridepublic void OnError (int code, String err) {//TODO auto-generated method stublog.v ("Update", Code + "/" + err); (Mdialog! = null &&Mdialog.isshowing ()) {Mdialog.dismiss ();} Mdownloadhandler.sendemptymessage (download_error);} @Overridepublic void ondataupdated (int totalsize, int downsize) {//TODO auto-generated method stubmdownfilesize = Totalsi Ze;mdownsize = Downsize;mdownloadhandler.sendemptymessage (download_updating);} @Overridepublic void Onupdatedfinish () {//TODO auto-generated method Stuburi uri = Uri.fromfile (fileutil.updatefile); Ntent Intent = new Intent (Intent.action_view); Intent.setdataandtype (URI, "application/vnd.android.package-archive") ; mactivity.startactivity (intent);}}

Step three: Write the following code in the main interface button event:

Checknewversionlogic checknewversionlogic = new Checknewversionlogic (aboutappactivity.this); Checknewversionlogic.checknewversion (Vercode + "");

The fourth step: the main interface class to implement Checkversionobserver, and implement the following methods:

void ShowDialog (String topic, String msg, string btnstr, final int type) {Alertdialog.builder Builder = new Alertdialog.bu Ilder (this); Builder.seticon (Android. R.drawable.ic_dialog_info); builder.settitle (topic); Builder.setmessage (msg); Builder.setnegativebutton (BTNSTR, New Dialoginterface.onclicklistener () {public void OnClick (Dialoginterface dialog, int which) {Dialog.dismiss (); Type = = 1) {AboutAppActivity.this.finish ();} else {}}}); builder.setcancelable (false); Builder.create (). Show (); private void Popupdatingdlg (long totalsize) {if (Mdialog = = null) {Mdialog = new ProgressDialog (this); Mdialog.setmax (100) ; String size = (totalsize*0.000001 + ""). Substring (0, 4); Mdialog.settitle (Getresources (). getString (R.string.now_ loading_new_version) (+size+ "M)"); Mdialog.setprogressstyle (progressdialog.style_horizontal); Mdialog.setcanceledontouchoutside (false); Mdialog.setonkeylistener (new Onkeylistener () {@Overridepublic Boolean OnKey (dialoginterface dialog, int keycode,keyevent event) {if (keycode = = Keyevent.keycode_search) | | (keycode = = Keyevent.keycode_back)) {return true;} return false;}}); Mdialog.setcancelable (false); Mdialog.show ();}} @Overridepublic void Oncheckvercanupdate (String promt, String versionname) {//TODO auto-generated method Stubpopupdatedlg (promt,versionname);} @Overridepublic void Oncheckvercannotupdate () {//TODO auto-generated method Stubshowdialog (getString (r.string.str_ Version_update), Getresources (). getString (R.string.no_sdcard), Getresources (). getString (R.string.sure), 0);} @Overridepublic void Onupdateerror (String topic, String msg, string btnstr, int type) {//TODO auto-generated method stubs Howdialog (topic,msg, btnstr, type);} @Overridepublic void ondataupdating (int totalsize, int downsize) {//TODO auto-generated method Stubpopupdatingdlg ( TotalSize); if (mdialog! = null && mdialog.isshowing ()) {if (Downsize < totalsize) {mdialog.setprogress ( downsize*100/totalsize);} else {Mdialog.dismiss ();}}} @Overridepublic void Onchecknewverfail (int errorCode,String msg) {//TODO auto-generated method Stubhalotoast.dismisswaitdialog ();//Close the Prompt box if (! Textutils.isempty (msg)) Toast.maketext (this, MSG, up). Show (); if (ErrorCode = =) {Intent Intent = new Intent ( Aboutappactivity.this,loginactivity.class); startactivity (intent);} if (Textutils.isempty (msg)) {Toast.maketext (this, r.string.str_network_error_msg,.). Show ();}} @Overridepublic void Onchecknewversucc (checkupdataentity newentity) {//TODO auto-generated method Stubhalotoast.dismisswaitdialog (); if (newentity.getretcode () = = 0) {HealthApplication.mUserCache.setToken ( Newentity.gettoken ()); if (Newentity.getdata ()!=null) {int serververcode = Newentity.getdata (). Getvercode (); String prompt = Newentity.getdata (). GetMessage (); String vername = Newentity.getdata (). Getvername (); checknewversionlogic.checkversion (Serververcode, prompt, VerName, Newentity.getdata (). Getappurl ());}} @Overridepublic void Onchecknewversuccinmain (mainentity mainentity) {//TODO auto-generated method stub}

The fifth step: Some of the network methods used:

/** * Detection System Version Upgrade * @param vercode * @return */public checkupdataentity checkversion (String vercode) {Jsonobject j = Httpjsonr Equesproxy.getinstance (). Getcheckverreques (Vercode); String jsondata=null;try {jsondata = Httputil.senddatatoserver (Lovehealthconstant.hosturl, j.toString ());} catch ( Exception e) {e.printstacktrace ();} if (jsondata==null) {return null;} Return Jsonutil.parse (Jsondata, checkupdataentity.class);} /** * Main interface Detection system version upgrade * @param token * @param firstopen * @param mobiletype * @param mobilesys * @param vercode * @return * * Public mainentity checkverinmain (int firstopen,string mobiletype, string Mobilesys, String vercode) {Jsonobject j = HttpJs Onrequesproxy.getinstance (). Gethomepagereques (Firstopen, Mobiletype, Mobilesys, Vercode); String jsondata=null;try {jsondata = Httputil.senddatatoserver (Lovehealthconstant.hosturl, j.toString ());} catch ( Exception e) {e.printstacktrace ();} if (jsondata==null) {return null;} Return Jsonutil.parse (Jsondata, mainentity.class);}

/** * Version Updated *  * @param token * @param vercode * @return */public jsonobject getcheckverreques (String vercode) {Jsonobje CT title = Getcontextjsonobj ("CheckUp"); try {//Another JSON object requires a new jsonobject Mqrinfo = new Jsonobject (); Mqrinfo.put (" Vercode ", vercode);//Add user and code values to the entire JSON title.put (" data ", Mqrinfo);} catch (Jsonexception e) {//key is NULL or use JSON unsupported number format (NaN, infinities) throw new RuntimeException (e);} return title;}

/** * Home * *  @param token * @param firstopen * @param mobiletype * @param mobilesys * @param vercode * @return */publi C jsonobject gethomepagereques (int firstopen,string mobiletype, string Mobilesys, String vercode) {jsonobject title = GetC Ontextjsonobj ("homepage"); try {//Another JSON object requires a new jsonobject Mqrinfo = new Jsonobject (); Mqrinfo.put ("Firstopen", Firstopen) mqrinfo.put ("Mobiletype", Mobiletype); Mqrinfo.put ("Mobilesys", Mobilesys); Mqrinfo.put ("Vercode", Vercode);//Add user and code values to the entire JSON title.put ("data", Mqrinfo);} catch (Jsonexception e) {//key is NULL or use JSON unsupported number format (NaN, infinities) throw new RuntimeException (e);} return title;}

public string senddatatoserver (string URL, String body) throws Exception {HttpPost HttpPost = new HttpPost (URL); Bytearrayentity postdata = new Bytearrayentity (Body.getbytes ()); httppost.setentity (postdata); int res = 0; Httpparams httpparameters = new Basichttpparams (); Httpconnectionparams.setconnectiontimeout (Httpparameters, time_out); Httpconnectionparams.setsotimeout (Httpparameters, time_out);D efaulthttpclient httpClient = new Defaulthttpclient ( Httpparameters); HttpResponse HttpResponse = Httpclient.execute (httppost); res = Httpresponse.getstatusline (). GetStatusCode (); if (res = = $) {String result = entityutils.tostring (httpresponse.getentity ()); XLOG.D ("result==", result); return result;} return null;}

Android App detects version updates with viewer mode