popwindow动画显示消失，activity切换动画
popwindow通过setAnimationStyle(int animationStyle)函数来设置动画效果
android:windowEnterAnimation表示进入窗口动画
android:windowExitAnimation表示窗口退出动画
在res/values/style.xml代码：
<?xml version="1.0" encoding="utf-8"?><resources><style name="PopupAnimation" parent="android:Animation" mce_bogus="1"><item name="android:windowEnterAnimation">@anim/popup_enter</item><item name="android:windowExitAnimation">@anim/popup_exit</item></style></resources>?
在res/anim/popup_enter.xml声明所需进入动画
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><scale android:fromXScale="0.6" android:toXScale="1.0"android:fromYScale="0.6" android:toYScale="1.0" android:pivotX="50%"android:pivotY="50%" android:duration="1000" /><alpha android:interpolator="@android:anim/decelerate_interpolator"android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="1000" /></set>
在res/anim/popup_exit.xml声明所需退出动画
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><scale android:fromXScale="1.0" android:toXScale="0.5"android:fromYScale="1.0" android:toYScale="0.5" android:pivotX="50%"android:pivotY="50%" android:duration="500" /><alpha android:interpolator="@android:anim/accelerate_interpolator"android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="500" /></set>设置popwindow的位置及动画
??????? popupWindow.setAnimationStyle(R.style.PopupAnimation);
??? ??? popupWindow.showAtLocation(findViewById(R.id.parent), Gravity.CENTER
??? ??? ??? ??? | Gravity.CENTER, 0, 0);
??? ??? popupWindow.update();
调用popupWindow.dismiss();语句。popwindow消失，自动调用消失动画popup_exit.xml
activity切换动画
public void onClick(View v) {
??? ??? ??? ??? Intent intent = new Intent(ActivityAnim.this,ActivityTwo.class);
??? ??? ??????? startActivity(intent);??? ??? ????????
??? ??? ??????? overridePendingTransition(R.anim.act_enter,R.anim.act_exit);??? ??? ????????
? }
overridePendingTransition(int ,int)函数，第一个参数为activity显示动画，第二个参数为退出动画，两个动画的xml文件存放在anim文件夹下
或者：getWindow().setWindowAnimations(R.style.window_animation);
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