PopupWindow的使用

View view = View.inflate(this, R.layout.?, null);

final PopupWindow pw = new PopupWindow(view, LayoutParams.FILL_PARENT,
				LayoutParams.WRAP_CONTENT, true);


pw.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

pw.setAnimationStyle(R.style.pw_style);

pw.showAtLocation(getWindow().getDecorView(), Gravity.BOTTOM, 0, 0);

添加动画

<style name="pw_style" parent="android:Animation">
         <!-- //进入时的动画 -->
        <item name="@android:windowEnterAnimation">@anim/dialog_enter</item>
        <!-- //退出时的动画 -->
        <item name="@android:windowExitAnimation">@anim/dialog_exit</item>
        
</style>