前端之家收集整理的这篇文章主要介绍了
不断渐变的背景色,
前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
1、创建
显示的xml布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.ui.demo.custom.AnimatorTestActivity"
android:id="@+id/container">
</LinearLayout>
2、创建颜色渐变
属性
<?xml version="1.0" encoding="utf-8"?>
<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
android:propertyName = "backgroundColor"
android:duration="3000"
android:valueFrom="#FF8080"
android:valueTo="#8080FF"
android:repeatCount="infinite"
android:repeatMode="reverse"
android:valueType="intType">
</objectAnimator>
3、
显示的Activity
public class AnimatorTestActivity extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_animator_test);
LinearLayout container = (LinearLayout) findViewById(R.id.container);
container.addView(new MyAnimationView(this));
}
private class MyAnimationView extends View
{
public MyAnimationView(Context context)
{
super(context);
//加载动画资源
ObjectAnimator colorAnim = (ObjectAnimator) AnimatorInflater
.loadAnimator(AnimatorTestActivity.this,R.anim.color_anim);
colorAnim.setEvaluator(new ArgbEvaluator());
//对该View本身应用属性动画
colorAnim.setTarget(this);
colorAnim.start();
}
}
}
原文链接:https://www.f2er.com/xml/295129.html