Android background Shape color gradient—sweep gradient

Android background color scanning gradient can be defined by defining an xml file in res/drawable (the name of the xml file can be defined according to the individual):

1. sweep_gradient.xml code:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <gradient
        android:startColor="#03A9F4"
        android:centerColor="#FF5722"
        android:endColor="#FF9800"
        android:type="sweep"
        android:centerX="0.5"
        android:centerY="0.5" />

</shape>

1. android:startColor start color

2. android:centerColor middle color

3. android:endColor end color

4. android:type gradient type, scan sweep

5. centerX, centerY: x and y coordinates of the center radial point, the value is 0-1.0, centerX takes 0.5 to indicate horizontal centering, centerY takes 0.5 to indicate vertical centering

2. Use it in the interface you want to implement:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    tools:context=".ColorActivity"
    android:orientation="vertical"
    android:background="@drawable/sweep_gradient">


</LinearLayout>

3. Rendering: