自定义循环label效果

项目介绍：

github链接

使用方法

//设置label的frame和数据源
OttoCycleLabel *label = [[OttoCycleLabel alloc] initWithFrame:CGRectMake(0, 100, MainWidth, 20) texts:_dataArr];
label.timeInterval = 0.5;//设置滚动的时间间隔
label.backgroundColor = [UIColor clearColor];
label.directionMode = DirectionTransitionFromBottom;//设置滚动模式
label.textAlignment = NSTextAlignmentCenter;
label.font = [UIFont systemFontOfSize:12 weight:UIFontWeightHeavy];
label.textColor = [UIColor colorWithRed:0.5 green:0.5 blue:1 alpha:1];

[self.view addSubview:label];
[label startCycling];//开始滚动