这个问题可能是在机器人：宽=WRAP_CONTENT ....
因为ü没有包装的水平滚动视图的内容和它的LinearLayout和按钮，在上述情况下.......
的父 这可能会创建所有的问题... 无论是硬code的线性布局大小或将机器人：宽=FILL_PARENT水平滚动视图.....

the problem might be in android:width="wrap_content"....
as u did wrap content for horizontal scrollview and it is parent of linearlayout and button in above case.......
that might be creating all the problem... either hard code size of linear layout or put android:width="fill_parent" in horizontal scroll view.....