1.Create Empty activity in package.

2.Copy a logo into drawable.

3.New activity xml;.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"    
    android:background="@color/white"
    android:gravity="center"
    tools:context=".New_activity">



    <ImageView
        android:layout_width="120dp"
        android:layout_height="120dp"
        android:id="@+id/logo"
        android:src="@drawable/logo"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

</RelativeLayout>

4.New_activity java;.

public class splashscreen extends AppCompatActivity {

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

        Thread thread = new Thread(){
            public void run(){
                try {
                    sleep(1000);
                }catch (InterruptedException e){
                    e.printStackTrace();
                }finally {
                    startActivity(new Intent(splashscreen.this, MainActivity.class));
                    finish();
                }
            }
        };
        thread.start();
    }
}

5.AndroidManifes xml, move intent;.

<activity android:name=".New_activity">
   <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>