Popwindow 向上弹出

http://stackoverflow.com/questions/7092370/how-to-animate-popup-window-from-bottom-to-top-in-android

/*** 获取父控件的位置y-popwindow的高度 = 应该显示的y坐标.   x这里设置为center 不刻意指定坐标  注意:控件坐标永远是 左上角坐标!* * @param parent*/public void showUp(View parent) {int[] location = new int[2];parent.getLocationOnScreen(location);popupWindow.setAnimationStyle(R.style.AnimationPopup);popupWindow.showAtLocation(parent, Gravity.CENTER_HORIZONTAL| Gravity.TOP, 0, location[1] - popupWindow.getHeight() + 20);popupWindow.setFocusable(true);popupWindow.setOutsideTouchable(true);popupWindow.update();}

values\style.xml:

<resources> <style name="AnimationPopup"><item name="@android:windowEnterAnimation">@anim/appear</item><item name="@android:windowExitAnimation">@anim/disappear</item> </style> </resources>

anim\appear.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<scale
android:duration="500"
android:fromXScale="1.0"
android:fromYScale="0.5"
android:pivotX="0%"
android:pivotY="100%"
android:toXScale="1"
android:toYScale="1" />
<alpha
android:duration="500"
android:fromAlpha="0.5"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="1.0" />
</set>

anim\disappear.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<scale
android:duration="500"
android:fromXScale="1.0"
android:fromYScale="1"
android:pivotX="0%"
android:pivotY="100%"
android:toXScale="1"
android:toYScale="0.5" />
<alpha
android:duration="500"
android:fromAlpha="1.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="0.0" />
</set>