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硅谷新闻1--引导界面GuideActivity

1.红点切换间距

RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) iv_red_point.getLayoutParams();
params.leftMargin = leftmargin;
iv_red_point.setLayoutParams(params);  

2.显示和隐藏按钮

3.getViewTreeObserver()

http://www.cnblogs.com/wangying222/p/5267923.html

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硅谷新闻1--引导界面GuideActivity