[android] 动画（Animation）

一、Tween animation

1、用代码写的

     /*
     *1、 播放透明度变化的动画
     */
     public void alpha(View v){
          AlphaAnimation aa = new AlphaAnimation(0.0f, 1.0f);
          //设置播放的持续时间
          aa.setDuration(5000);
          //将此动画设置给ImageView
          iv.startAnimation(aa);
     }
     /*
     * 2、播放缩放变化的动画
     */
     public void scale(View v){
          ScaleAnimation sa = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f);
          //设置播放的持续时间
          sa.setDuration(5000);
          //将此动画设置给ImageView
          iv.startAnimation(sa);
     }
     /*
     * 3、播放旋转变化的动画
     */
     public void rotate(View v){
          RotateAnimation ra = new RotateAnimation(0, 90);//从0度旋转到90度
          //设置播放的持续时间
          ra.setDuration(5000);
          //将此动画设置给ImageView
          iv.startAnimation(ra);
     }
     /*
     * 4、播放平移变化的动画
     */
     public void translate(View v){
          TranslateAnimation ta = new TranslateAnimation(0, 100, 0, 100);//x从0到100，y从0到100
          //设置播放的持续时间
          ta.setDuration(5000);
          //将此动画设置给ImageView
          iv.startAnimation(ta);

     }   

3、用xml配置文件

     

   在
配置：

     1、alpha.xml

<?xml version="1.0" encoding="utf-8"?>

<alpha xmlns:android="http://schemas.android.com/apk/res/android"

         android:fromAlpha="0.0"

         android:toAlpha="1.0"

         android:duration="2000"

         android:repeatCount="2"

         android:repeatMode="reverse"

    >

</alpha>

  2、scale.xml

   <?xml version="1.0" encoding="utf-8"?>

<scale xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXScale="0.0"
    android:toXScale="2.0"
    android:fromYScale="0.0"
    android:toYScale="2.0"
    android:repeatCount="2"
    android:repeatMode="restart"
    android:duration="2000"
    >

      </scale> 

   

  3、rotate.xml

   <?xml version="1.0" encoding="utf-8"?>

<rotate xmlns:android="http://schemas.android.com/apk/res/android"
     android:fromDegrees="0"
     android:toDegrees="90"
     android:pivotX="50%p"  //按照父体来缩放
     android:pivotY="50%p"
     android:duration="3000"
    >

</rotate> 

  4、translate.xml

   <?xml version="1.0" encoding="utf-8"?>

<translate xmlns:android="http://schemas.android.com/apk/res/android"
     android:fromXDelta="0"
     android:toXDelta="100"
     android:fromYDelta="0"
     android:toYDelta="100"  
     android:duration="2000"
     android:startOffset="1000" 
    >
</translate>

     

  public void translate(View v){

          TranslateAnimation ta = (TranslateAnimation) AnimationUtils.loadAnimation(this,R.anim.translate);
          //将此动画设置给ImageView
          iv.startAnimation(ta);
     }

3、组合动画

  1）直接代码实现

     AlphaAnimation aa = new AlphaAnimation(0.0f, 1.0f);

          aa.setDuration(5000);
          RotateAnimation ra = new RotateAnimation(0, 90);//从0度旋转到90度
          ra.setDuration(5000);
          TranslateAnimation ta = new TranslateAnimation(0, 100, 0, 100);//x从0到100，y从0到100
          ta.setDuration(5000);
          AnimationSet set = new AnimationSet(false);//加速器，不要使用
          set.addAnimation(aa);
          set.addAnimation(ra);
          set.addAnimation(ta);
          iv.startAnimation(set);

   2）xml配置实现

     <?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android" >
    <alpha
        android:duration="2000"
        android:fromAlpha="0.0"
        android:repeatCount="2"
        android:repeatMode="reverse"
        android:toAlpha="1.0" >
    </alpha>
    <rotate
        android:fromDegrees="0"
        android:pivotX="50%p"
        android:pivotY="50%p"
        android:toDegrees="90" >
    </rotate>
    <translate
        android:duration="2000"
        android:fromXDelta="0"
        android:fromYDelta="0"
        android:startOffset="1000"
        android:toXDelta="100"
        android:toYDelta="100" >
    </translate>

</set>     

    

    Animation a = AnimationUtils.loadAnimation(this, R.anim.set);

          iv.startAnimation(a);

4、完整代码：

二、Frame animation

     1、在
下放置图片及其下建立list.xml

       <?xml version="1.0" encoding="utf-8"?>

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"

    android:oneshot="false" >

    <item

        android:drawable="@drawable/girl_1"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_2"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_3"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_4"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_5"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_6"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_7"

        android:duration="800"/>

    <item

        android:drawable="@drawable/girl_8"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_9"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_10"

        android:duration="200"/>

    <item

        android:drawable="@drawable/girl_11"

        android:duration="200"/>

</animation-list>

public class FrameActivity extends Activity {

     private ImageView iv;

     private AnimationDrawable drawable;

    

     @Override

     public void onCreate(Bundle savedInstanceState) {

          super.onCreate(savedInstanceState);

          setContentView(R.layout.main);

          iv = (ImageView) this.findViewById(R.id.iv);

          iv.setBackgroundResource(R.drawable.list);

          drawable = (AnimationDrawable) iv.getBackground();

     }

     @Override

     //触摸事件

     public boolean onTouchEvent(MotionEvent event) {

          //触摸下就开始播放帧动画

          if (event.getAction() == MotionEvent.ACTION_DOWN) {

               drawable.start();

          }

          return super.onTouchEvent(event);

     }

}