IOS7中contentsize获取高度的方法

    [cell.methodTextView.text boundingRectWithSize:CGSizeMake(cell.methodTextView.frame.size.width, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:[NSDictionary dictionaryWithObjectsAndKeys:cell.methodTextView.font,NSFontAttributeName, nil] context:nil].size.heightspa

textview中text字符串调用boundingRectWithSize方法得到CGpoint,经过CGpoint调用.size.height 字符串

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