Efficient start page (Splash) to start splash

Efficient start page (Splash) to start splash

When many applications start, a page is required to display the company's brand or Logo, or even if this page is not needed, if the layout is complex, when starting an application, there will be a short white screen (related to the system topic). We often write an Activity separately and then display an image or Logo, set a fixed time delay to start the real MainActivity. In this way, you can share a small skill:

• First, use layer-list to define a hierarchical drawable:

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<layer-list xmlns:android="http://schemas.android.com/apk/res/android">    <item>        <color android:color="@color/background_material_light"/>    </item>    <item>        <bitmap            android:src="@drawable/launch_logo_image"            android:tileMode="disabled"            android:gravity="center"/>    </item></layer-list>

Define the background color and a bitmap Logo. the Logo is displayed in the center. Areas beyond the bitmap size are not tiled or processed;

• Then apply it to the global background (when the application starts, the topic is rendered first. If the system topic is not set by default ):

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<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar" />  <style name="AppTheme.BrandedLaunch" parent="AppTheme">    <item name="android:windowBackground">@drawable/branded_logo</item></style>

• Portal Activity setting topic:

1234	<activity    android:name=".MainActivity"    android:label="@string/app_name"    android:theme="@style/AppTheme.BrandedLaunch">

As this will change the overall theme, you can change it dynamically in onCreate to return to the original default theme:

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@Overrideprotected void onCreate(Bundle savedInstanceState) {    setTheme(R.style.AppTheme);    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);}

A short white screen is displayed before the application is started:

After using this method:

Is it much more comfortable.