android 初级动画效果XML配置与代码使用

1===============<alpha/>========淡入淡出=====================

1、先看配置文件

当只有一个<alpha>标签是，动画执行一次

<alpha

        android:duration="3000" ---动画的动作过程执行时间为3000毫秒
        android:fromAlpha="0.0" ---从0%透明开始（完全透明）
        android:toAlpha="1.0" />---从100%透明结束（原图） />

<alpha

        android:duration="3000" ---动画的动作过程执行时间为3000毫秒
        android:fromAlpha="1.0" ---从100%透明开始（原图）
        android:toAlpha="0.0" ---从0%透明结束（完全透明）
        android:startOffset="3000" ---当第一次动画执行3000毫秒之后再开始/>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter="true"
    android:fillBefore="false"
    android:interpolator="@android:anim/accelerate_interpolator" >

    <alpha
        android:duration="3000"
        android:fromAlpha="0.0"
        android:toAlpha="1.0" />
    <alpha
        android:duration="3000"
        android:fromAlpha="1.0"
        android:startOffset="3000"
        android:toAlpha="0.0" /> 
</set>

 java代码实现

AnimationSet animationSet = new AnimationSet(true);
AlphaAnimation alphaAnimation1 = new AlphaAnimation(0, 1);
alphaAnimation.setDuration(3000);
animationSet.addAnimation(alphaAnimation1);

AlphaAnimation alphaAnimation2 = new AlphaAnimation(1, 0);
alphaAnimation.setDuration(3000);
alphaAnimation.setStartOffset(3000);
animationSet.addAnimation(alphaAnimation2);

animationSet.setFillBefore(false);
animationSet.setFillAfter(true);

2=============<scale/>===========放大放小===========

XML文件

<scale
        android:duration="6000" /*动画时间*/
        android:fromXScale="0.0" /*开始width的比例*/
        android:fromYScale="0.0"   /*开始hight的比例*/
        android:pivotX="50%"    /*X坐标相对分辨率X的比率*/
        android:pivotY="50%"     /*Y坐标相对分辨率Y的比率*/
        android:toXScale="1.0"    /*结束时width的比例*/
        android:toYScale="1.0" />   /*结束是hight的比例*/
    <scale
        android:duration="6000"
        android:fromXScale="1.0"
        android:fromYScale="1.0"
        android:pivotX="50%"
        android:pivotY="50%"
        android:startOffset="6000"
        android:toXScale="0.0"
        android:toYScale="0.0" />

 java 代码实现

AnimationSet animationSet = new AnimationSet(true);
ScaleAnimation scaleAnimation1 = new ScaleAnimation(0.0f, 1, 0.0f, 1,
        Animation.RELATIVE_TO_SELF, 0.5f,
        Animation.RELATIVE_TO_SELF, 0.5f);
animationSet.addAnimation(scaleAnimation1);
scaleAnimation1.setDuration(6000);

ScaleAnimation scaleAnimation2 = new ScaleAnimation(1, 0.0f, 1, 0.0f,
        Animation.RELATIVE_TO_SELF, 0.5f,
        Animation.RELATIVE_TO_SELF, 0.5f);
animationSet.addAnimation(scaleAnimation2);
scaleAnimation2.setDuration(6000);
scaleAnimation2.setStartOffset(6000);

 3=================<Rotate/>=======正顺旋转效果===============

XML文件

<rotate
        android:duration="3000"    /*动画时间*/
        android:fromDegrees="0"  /*从0度开始*/
        android:pivotX="50%"       /*中心的X坐标*/
        android:pivotY="50%"       /*中心的Y坐标*/
        android:toDegrees="+360" /> /*顺时针旋转360度*/
    <rotate
        android:duration="3000"
        android:fromDegrees="0"
        android:pivotX="50%"
        android:pivotY="50%"
         android:startOffset="3000"
        android:toDegrees="-360" /> /*逆时针旋转360度*/

Java代码实现

AnimationSet animationSet = new AnimationSet(true);
RotateAnimation rotateAnimation1 = new RotateAnimation(0, 360,
        Animation.RELATIVE_TO_PARENT, 0.5f,
        Animation.RELATIVE_TO_PARENT, 0.5f);
rotateAnimation1.setDuration(3000);
animationSet.addAnimation(rotateAnimation1);

RotateAnimation rotateAnimation2 = new RotateAnimation(0, 360,
        Animation.RELATIVE_TO_PARENT, 0.5f,
        Animation.RELATIVE_TO_PARENT, 0.5f);
rotateAnimation2.setDuration(3000);
animationSet.addAnimation(rotateAnimation2);
rotateAnimation2.setStartOffset(3000);

4================<Translate/>========移来移去效果==========

<translate
        android:fromXDelta="0%p"  /*X坐标的在初始*/
        android:toXDelta="100%p"   /*X坐标向右移出屏幕（-100%p为向左移出屏幕）*/
        android:fromYDelta="0%p"   /*Y在初始*/
        android:toYDelta="100%p"   /*Y移除屏幕（-100%p为向下移出屏幕）*/
        android:duration="3000" /> /**/ 

java 实现代码

AnimationSet animationSet = new AnimationSet(true);
TranslateAnimation translateAnimation = new TranslateAnimation(
        Animation.RELATIVE_TO_SELF, 0f,
        Animation.RELATIVE_TO_SELF, 1.0f,
        Animation.RELATIVE_TO_SELF, 0f,
        Animation.RELATIVE_TO_SELF, 1.0f);
translateAnimation.setDuration(1000);
animationSet.addAnimation(translateAnimation);

end>>>>>>>>java调用代码

ImageView imageView=(ImageView)findViewById(R.id.imag1);
        imageView.setImageResource(R.drawable.pc1);
        
        //实现淡入淡出
        
        Animation animation = AnimationUtils.loadAnimation(LeastinputActivity.this, R.anim.leastinout);
        imageView.startAnimation(animation);