01 2017 档案

安卓Textview的getLineCount返回0
摘要：ViewTreeObserver observer = tv.getViewTreeObserver(); // textAbstract为TextView控件 observer.addOnGlobalLayoutListener(new OnGlobalLayoutListener() { @Override ... 阅读全文
posted @ 2017-01-21 09:56 netcorner 阅读(1760) 评论(0) 推荐(0)
指定经纬度与数据库多条经纬度进行距离计算
摘要：##121.308364,30.225778 示例对比的坐标 select * from broadcasts where location!='' and sqrt( ( ((121.308364-longitude)*PI()*12656*cos(((30.225778+latitude)/2)*PI()/180)/180) * ((1... 阅读全文
posted @ 2017-01-08 17:37 netcorner 阅读(1157) 评论(0) 推荐(0)