I think what you’re referring is how to implement a Splash screen,
Create a new empty activity, I’ll call it Splash for this example;
public class SplashScreen extends Activity {
// Sets splash screen time in miliseconds
private static int SPLASH_TIME = 3000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
// run() method will be executed when 3 seconds have passed
//Time to start MainActivity
Intent intent = new Intent(Splash.this, MainActivity.class);
startActivity(intent );
finish();
}
}, SPLASH_TIME);
}
}
Make sure you’ve set Splash activity as the launcher activity in your Manifest file :
<activity
android:name=".Splash"
android:theme="@android:style/Theme.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
solved Showing logo 3 seconds before loading mainActivity [duplicate]