How to correctly implement the Android boot screen (avoid white screen)

The incorrect implementation of the Android boot screen may cause the user to wait for a long time, or a black and white screen may appear. Here is a brief demonstration of how to correctly implement the Android boot screen.

The demo is divided into the following steps:

Create a splash_background.xml file in the res/drawable folder.
Edit res/values/
Create java/.../SplashActivity
Edit manifests/

1. Create splash_background.xml file in the res/drawable folder

Adjust the gravity and size of the bitmap image according to your needs.

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:andro>

  <item android:drawable="@color/colorPrimary"/>

  <item android:gravity="center" android:width="100dp" android:height="100dp">
    <bitmap
      android:gravity="fill_horizontal|fill_vertical"
      android:src="@drawable/logo"/>
  </item>

</layer-list>

2. Edit res/values/

The style here is used for the launch screen. This is to hide the action bar when the screen is launched.

<resources>

  <!-- Base application theme. -->
  <style name="AppTheme" parent="">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
  </style>

  <style name="SplashTheme" parent="">
    <item name="android:windowBackground">@drawable/splash_background</item>
  </style>

</resources>

3. Create java/.../SplashActivity

Once the App starts, SplashActivity will be started and then transferred to MainActivity.

package ;

import ;
import ;
import .;

public class SplashActivity extends AppCompatActivity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);

    //switch from splash activity to main activity
    Intent intent = new Intent(this, );
    startActivity(intent);
    finish();
  }
}

4. Edit manifests/

Add a new splash screen activity in the manifest file.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:andro
  package="">

  <application

    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="goodSplash"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

    <activity android:name="" android:theme="@style/SplashTheme">
      <intent-filter>
        <action android:name="" />
        <category android:name="" />
      </intent-filter>
    </activity>

    <activity android:name=""></activity>

  </application>

</manifest>

Sample source code address:/mrjoedang/goodSplash

The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.