SampleForceUpdate main activity

MainActivity.java

public class MainActivity extends AppCompatActivity 
        implements ForceUpdateChecker.OnUpdateNeededListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ForceUpdateChecker.with(this).onUpdateNeeded(this).check();
    }

    @Override
    public void onUpdateNeeded(final String updateUrl) {
        AlertDialog dialog = new AlertDialog.Builder(this)
                .setTitle("New version available")
                .setMessage("Please, update app to new version to continue reposting.")
                .setPositiveButton("Update",
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                redirectStore(updateUrl);
                            }
                        }).setNegativeButton("No, thanks",
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                finish();
                            }
                        }).create();
        dialog.show();
    }

    private void redirectStore(String updateUrl) {
        final Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(updateUrl));
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);
    }
}