android 仿QQ音乐建议反馈上方的提示动画效果，渐隐

来源：互联网发布：热血征途2008java 编辑：程序博客网时间：2024/05/16 05:43

第一种，在activity里直接代码写，但是有些手机无法实现动画效果，如酷派

float curTranslationY = notice_lab.getTranslationY();          float toTranslationY=10*density;         ObjectAnimator moveInOut = ObjectAnimator.ofFloat(notice_lab, "translationY", curTranslationY, toTranslationY, toTranslationY, toTranslationY, toTranslationY,curTranslationY);          ObjectAnimator fadeInOut = ObjectAnimator.ofFloat(notice_lab, "alpha", 0f, 1f,1f,1f,1f, 0f);          AnimatorSet animSet = new AnimatorSet();          animSet.play(moveInOut).with(fadeInOut);          animSet.setDuration(4000);          animSet.start();

第二种在 anim的XML里写，然后再activity引用

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"    android:interpolator="@android:anim/accelerate_interpolator">    <translate         android:fromYDelta="0"        android:toYDelta="100%"        android:duration="1000"/><translate     android:startOffset="1000"        android:fromYDelta="100%"        android:toYDelta="100%"        android:duration="2000"/> <translate     android:startOffset="3000"        android:fromYDelta="100%"        android:toYDelta="0"        android:duration="1000"/><alpha    android:startOffset="0"    android:fromAlpha="0"    android:toAlpha="1"        android:duration="1000"/><alpha    android:startOffset="3000"    android:fromAlpha="1"    android:toAlpha="0"        android:duration="1000"/></set>

引用

Animation animSet=AnimationUtils.loadAnimation(this, R.anim.fade_down_up_anim);        notice_lab.setAnimation(animSet);

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