UISegmentedControl的使用 IOS学习手记

NSArray *segmentedArray = [[NSArray alloc]initWithObjects:@"消息",@"联系人",@"群发",@"讨论组",nil];
    //初始化UISegmentedControl
    UISegmentedControl *segmentedControl = [[UISegmentedControl alloc]initWithItems:segmentedArray];
    segmentedControl.frame = CGRectMake(1.0, [UIScreen mainScreen].bounds.size.height-50-64, 318.0, 50.0);
    segmentedControl.selectedSegmentIndex = 0;//设置默认选择项索引
    [segmentedControl setBackgroundImage:[UIImage imageNamed:@"zyyy_choose_middle.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
    [segmentedControl setBackgroundImage:[UIImage imageNamed:@"zyyy_choose_middle_touch.png"] forState:UIControlStateSelected barMetrics:UIBarMetricsDefault];
    segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;//设置样式
    [segmentedControl addTarget:self action:@selector(segmentAction:)forControlEvents:UIControlEventValueChanged];  //添加委托方法
    [self.view addSubview:segmentedControl];

-(void)segmentAction:(UISegmentedControl *)Seg{
    
    NSInteger Index = Seg.selectedSegmentIndex;
    
    NSLog(@"Index %i", Index);
    
    switch (Index) {
            
        case 0:
            break;
    }
}