效果图.gif
通过按钮的状态改变按钮的颜色
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self setupTitleView];
}
-(void)setupTitleView{
UIView *titleView = [[UIView alloc]initWithFrame:CGRectMake(0, 22, self.view.frame.size.width, 30)];
[self.view addSubview:titleView];
CGFloat titleBtnW = self.view.frame.size.width/5.0;
NSArray *titleArray = @[@"全部",@"视频",@"声音",@"图片",@"段子"];
for (int i=0; i<titleArray.count; i++) {
UIButton *titleBtn = [[UIButton alloc]initWithFrame:CGRectMake(i*titleBtnW, 0, titleBtnW, 30)];
[titleBtn setTitle:titleArray[i] forState:UIControlStateNormal];
[titleBtn setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal];
[titleBtn setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
[titleBtn addTarget:self action:@selector(titleBtnClick:) forControlEvents:UIControlEventTouchUpInside];
[titleView addSubview:titleBtn];
}
}
-(void)titleBtnClick:(UIButton*)titleBtn{
self.previousClickBtn.selected = NO;
titleBtn.selected = YES;
self.previousClickBtn = titleBtn;
}
如果想要在当前选中的按钮再次点击则刷新 则需要重写一个继承自UIButton的子类。重写下面的方法。让按钮不响应高亮状态。则按钮会在选中状态后再点击响应UIControlStateSelected状态的点击事件。否则高亮状态和选中状态重叠按钮会为normal状态。
- (void)setHighlighted:(BOOL)highlighted
{
// 只要重写了这个方法，按钮就无法进入highlighted状态
//不做任何操作就可以
}
