Android

시도해보세요 : 먼저 playstore 링크에 대한 요청 호출을 만들고 거기에서 현재 버전을 가져온 다음 현재 버전과 비교해야합니다.

String currentVersion, latestVersion;
Dialog dialog;
private void getCurrentVersion(){
 PackageManager pm = this.getPackageManager();
        PackageInfo pInfo = null;

        try {
            pInfo =  pm.getPackageInfo(this.getPackageName(),0);

        } catch (PackageManager.NameNotFoundException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        currentVersion = pInfo.versionName;

   new GetLatestVersion().execute();

}

private class GetLatestVersion extends AsyncTask<String, String, JSONObject> {

        private ProgressDialog progressDialog;

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }

        @Override
        protected JSONObject doInBackground(String... params) {
            try {
//It retrieves the latest version by scraping the content of current version from play store at runtime
                Document doc = Jsoup.connect(urlOfAppFromPlayStore).get();
                latestVersion = doc.getElementsByClass("htlgb").get(6).text();

            }catch (Exception e){
                e.printStackTrace();

            }

            return new JSONObject();
        }

        @Override
        protected void onPostExecute(JSONObject jsonObject) {
            if(latestVersion!=null) {
                if (!currentVersion.equalsIgnoreCase(latestVersion)){
                   if(!isFinishing()){ //This would help to prevent Error : BinderProxy@45d459c0 is not valid; is your activity running? error
                    showUpdateDialog();
                    }
                }
            }
            else
                background.start();
            super.onPostExecute(jsonObject);
        }
    }

private void showUpdateDialog(){
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("A New Update is Available");
        builder.setPositiveButton("Update", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse
                        ("market://details?id=yourAppPackageName")));
                dialog.dismiss();
            }
        });

        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                background.start();
            }
        });

        builder.setCancelable(false);
        dialog = builder.show();
    }