Android动画工具类有哪些具体应用场景？

本文共计92个文字，预计阅读时间需要1分钟。

javaimport android.view.View;import android.view.animation.AlphaAnimation;

public class AnimationUtil { public static void showAlphaAnimation(View v, long durationMillis) { AlphaAnimation animation=new AlphaAnimation(0, 1); animation.setDuration(durationMillis); v.startAnimation(animation); }}

AnimationUtil.java

import android.view.View; import android.view.animation.AlphaAnimation; public class AnimationUtil { public static void showAlphaAnimation(View v, long durationMillis) { AlphaAnimation animation = new AlphaAnimation(0, 1); animation.setDuration(durationMillis); v.startAnimation(animation); } public static void hideAlphaAnimation(View v, long durationMillis) { AlphaAnimation animation = new AlphaAnimation(1, 0); animation.setDuration(durationMillis); v.startAnimation(animation); } }