Android - Install Application Programmatically With Result

I am new to Android and I have an application which consists in a service and on some point the service needs to install a new .apk (basically an auto-update), currently the instal

Solution 1:

The Logic Could Be:

1. Install Script
2. Wait 5 seconds
3. Run the appInstalledOrNot function
4. If not installed, then try again in 1 second

Here could be the code:

publicvoidinstallApp(){
    FilemFile=newFile(Uri.parse(downloadedPackageUriString).getPath());
    IntentpromptInstall=newIntent(Intent.ACTION_VIEW)
            .setDataAndType(Uri.fromFile(mFile), "application/vnd.android.package-archive")
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    appContext.startActivity(promptInstall);

    Threadt=newThread(){
        publicvoidrun(){

            booleaninstalled= checkInstalled("vnd.android.package-archive");
            while(!installed)
            {
                System.out.println("Not Installed Yet..Waiting 1 Second");
                t.sleep(1000);
            }

            //Now it has been installedif(installed) {
                //This intent will help you to launch if the package is already installedIntentLaunchIntent= getPackageManager()
                    .getLaunchIntentForPackage("com.Ch.Example.pack");
                startActivity(LaunchIntent);

                System.out.println("App already installed on your phone");        
            }
            else {
                System.out.println("App is not installed on your phone");
            }
            }
    t.start();
}

privatebooleancheckInstalled(String uri) {
    PackageManagerpm= getPackageManager();
    booleanapp_installed=false;
    try {
        pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
        app_installed = true;
    }
    catch (PackageManager.NameNotFoundException e) {
        app_installed = false;
    }
    return app_installed ;
}

Code based on: How to check programmatically if an application is installed or not in Android?