YFRollingLabel *label = [[YFRollingLabel alloc] initWithFrame:frame textArray:@[@The first One”,@“The Second One”,@“The Third One”,@“The Last One”] font:[UIFont systemFontOfSize:20] textColor:[UIColor whiteColor]];

speed:         pixel rolling for every 0.02s, default : 1.0f.
internalWidth: the width between two labels, default : a third of view's width.
orientation:   rolling from left to right or not: default : RollingOrientationLeft.

-(void)beginTimer;    start rolling. 
-(void)pauseTimer;    pause rolling. 
-(void)stopTimer;     stop  rolling. 

label.labelClickBlock = ^(NSInteger index){	
	//Your Code.
};