1.修改html，flash显示在右上角；
2.从assets/flash.html中读取html用于显示；
3.点击弹窗外部时，关闭弹窗；
4.全屏时禁止移动。
#	modified:   assets/flash.html
#	modified:   src/com/example/mypopupwindow/MyPopupWindow.java
#	modified:   src/com/example/popview/PopView.java
#	modified:   src/com/example/popview/PopViewWrapper.java
#
修改全屏按钮文本为“放大”/“缩小”
#	modified:   res/layout/popview.xml
#	modified:   res/values/strings.xml
#	modified:   src/com/example/popview/PopView.java
修改字串，控件等id，方便移植
#	renamed:    res/drawable/pop_bg.xml -> res/drawable/x_pop_bg.xml
#	renamed:    res/values/strings.xml -> res/values/x_strings.xml
#	renamed:    res/layout/popview.xml -> res/layout/x_popview.xml
#	modified:   AndroidManifest.xml
#	modified:   res/layout/activity_my_popup_window.xml
#	modified:   res/layout/pop.xml
#	modified:   res/menu/my_popup_window.xml
#	modified:   src/com/example/mypopupwindow/MyPopupWindow.java
#	modified:   src/com/example/popview/PopView.java
#	modified:   src/com/example/popview/PopViewWrapper.java
根据父布局宽高，计算弹窗宽高
#	modified:   res/layout/pop.xml
#	modified:   src/com/example/popview/PopViewWrapper.java
#
增加转屏处理
#	modified:   AndroidManifest.xml
#	modified:   src/com/example/mypopupwindow/MyPopupWindow.java
#	modified:   src/com/example/popview/PopView.java
#	modified:   src/com/example/popview/PopViewWrapper.java
#