popupwindow的用法

popupWindow = new PopupWindow(popupwindow的布局,LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, true);popupWindow.setBackgroundDrawable(new BitmapDrawable());popupWindow.setAnimationStyle(R.style.PopupAnimation);int publicbenefitxoffInPixels = imgbtn_toaction.getWidth() / 2;popupWindow.showAsDropDown(imgbtn_toaction,-publicbenefitxoffInPixels, 0);popupWindow.update();

R.style.PopupAnimation代码:

<style name="PopupAnimation" parent="android:Animation"><item name="android:windowEnterAnimation">@anim/popup_enter</item><item name="android:windowExitAnimation">@anim/popup_exit</item></style>