属性动画

1.alpha 渐变透明度动画效果
2.scale 渐变尺寸伸缩动画效果
3.translate 画面转换位置移动动画效果
4.rotate 画面转移旋转动画效果

动态

显示动画

mShowAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f,

Animation.RELATIVE_TO_SELF,-1.0f, Animation.RELATIVE_TO_SELF, 0.0f);

mShowAction.setDuration(500);

隐藏动画

mHiddenAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF,0.0f, Animation.RELATIVE_TO_SELF, 0.0f,

Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,-1.0f);

mHiddenAction.setDuration(500);

View的显示：
view.startAnimation(mShowAction);
view.setVisibility(View.VISIBLE);

View的隐藏：
view.startAnimation(mHiddenAction);
view.setVisibility(View.GONE);

animation.setAnimationListener(new AnimationListener() {
@Override
public void onAnimationStart(Animation arg0) {} //在动画开始时使用

@Override
public void onAnimationRepeat(Animation arg0) {} //在动画重复时使用

@Override
public void onAnimationEnd(Animation arg0) {
Toast.makeText(AlphaActivity.this, "在动画结束时使用", Toast.LENGTH_SHORT).show();
}
});

XML

我们可以看下ImageView的显示：
ImageView imageView = (ImageView)findViewById(R.id.imageView1);
Animation animation = AnimationUtils.loadAnimation(this, R.anim.fade_in);
imageView.setBackgroundResource(R.drawable.t);
imageView.startAnimation(animation);

anim/alpha.xml（渐变动画）

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<alpha
android:fromAlpha="0.1"
android:toAlpha="1.0"
android:duration="3000"/>

</set>

anim/scale.xml（伸缩动画）

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromXScale="0.0"
android:toXScale="1.4"
android:fromYScale="0.0"
android:toYScale="1.4"
android:pivotX="50%"
android:pivotY="50%"
android:fillAfter="false"
android:duration="700" />
</set>

anim/translate.xml(移动动画)

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:fromXDelta="30"
android:toXDelta="-80"
android:fromYDelta="30"
android:toYDelta="300"
android:duration="2000"/>

</set>

anim/rotate.xml(旋转动画)

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<rotate
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromDegrees="0"
android:toDegrees="+350"
android:pivotX="50%"
android:pivotY="50%"
android:duration="3000" />

</set>