Android自助餐之动画（二）补间动画

Android自助餐之动画（二）补间动画

下载完整源代码

明确被添加动画的控件

针对该控件写动画文件

res/anim

透明度动画

[code]<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:fromAlpha="0.2"
        android:toAlpha="0.8"
        android:duration="1000"
        android:fillAfter="true"
        android:fillBefore="false"
        android:interpolator="@android:interpolator/anticipate_overshoot"
        android:repeatMode="reverse"
        android:repeatCount="infinite"
        />
</set>

旋转动画

[code]<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <rotate
        android:fromDegrees="90"
        android:toDegrees="-90"
        android:pivotX="50%"
        android:pivotY="100%"
        android:duration="1000"
        android:repeatCount="infinite"
        android:repeatMode="reverse"
        android:interpolator="@android:interpolator/accelerate_decelerate"
        />
</set>

形变动画

[code]<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    >
    <!--以下动画同步进行，可自行设置duration和startOffset进行排序-->
    <scale
        android:fromXScale="100%"
        android:toXScale="50%"
        android:fromYScale="100%"
        android:toYScale="100%"
        android:duration="1000"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatMode="reverse"
        android:repeatCount="infinite"
        />
    <scale
        android:fromXScale="100%"
        android:toXScale="100%"
        android:fromYScale="100%"
        android:toYScale="50%"
        android:duration="1000"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatMode="reverse"
        android:repeatCount="infinite"
        android:startOffset="1000"
        />
</set>

位移动画

[code]<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <!--以下动画同步进行，可自行设置duration和startOffset进行排序-->
    <translate
        android:fromXDelta="-100%"
        android:toXDelta="150%"
        android:fromYDelta="100%"
        android:toYDelta="100%"
        android:duration="1000"
        android:repeatCount="infinite"
        android:repeatMode="reverse"
        android:interpolator="@android:interpolator/accelerate_decelerate"
        />
    <translate
        android:fromXDelta="100%"
        android:toXDelta="100%"
        android:fromYDelta="150%"
        android:toYDelta="-100%"
        android:duration="1000"
        android:repeatCount="infinite"
        android:repeatMode="reverse"
        android:startOffset="1000"
        />
</set>

播放动画

[code]AnimationSet animationSet = new AnimationSet(this, null);

Animation alphaAnimation = AnimationUtils.loadAnimation(this, R.anim.alpha_anim);
animationSet.addAnimation(alphaAnimation);

Animation scaleAnimation = AnimationUtils.loadAnimation(this, R.anim.scale_anim);
animationSet.addAnimation(scaleAnimation);

Animation translateAnimation = AnimationUtils.loadAnimation(this, R.anim.translate_anim);
animationSet.addAnimation(translateAnimation);

Animation rotateAnimation = AnimationUtils.loadAnimation(this, R.anim.rotate_anim);
animationSet.addAnimation(rotateAnimation);

imageView.startAnimation(animationSet);