CNSlideSelectionView *sliderView = [[CNSlideSelectionView alloc]init];
sliderView.delegate=self;
sliderView.indexArr = @[@"A",@"B",@"C",@"D",
@"E",@"F",@"G",@"H",
@"I",@"J",@"K",@"L",
@"M",@"N",@"O",@"P",
@"Q",@"R",@"S",@"T",
@"U",@"V",@"W",@"X",
@"Y",@"Z"];
[self.view addSubview:sliderView];