@interface AlertView : UIView
@property (nonatomic,copy) void(^block)(UIColor *color);
- (id)initWithAlertView;
- (void)showTwo;
@end
自定义View的.m文件
- (id)initWithAlertView
{
self = [super init];//自定义init方法 就是重写了系统的init方法；
if (self)
{
UIButton *btn1 = [UIButton buttonWithType:UIButtonTypeCustom];
btn1.backgroundColor = [UIColor redColor];
btn1.frame = CGRectMake(5, 100, 40, 25);
[btn1 addTarget:self action:@selector(btn1Click:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:btn1];
UIButton *btn2 = [UIButton buttonWithType:UIButtonTypeCustom];
btn2.backgroundColor = [UIColor greenColor];
btn2.frame = CGRectMake(150, 100, 40, 25);
[btn2 addTarget:self action:@selector(btn2Click:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:btn2];
}
return self;
}
- (void)btn1Click:(UIButton *)btn
{
self.block(btn.backgroundColor);
[self removeFromSuperview];
}
- (void)btn2Click:(UIButton *)btn
{
self.block(btn.backgroundColor);
[self removeFromSuperview];
}
主界面的.m
- (IBAction)buttonClick:(id)sender
{
AlertView *alertView = [[AlertView alloc] initWithAlertView];
alertView.backgroundColor = [UIColor grayColor];
alertView.frame = CGRectMake(100, 100, 200, 130);
// [alertView initWithAlertView];
[self.view addSubview:alertView];
__block ViewController *vc = self;
alertView.block = ^(UIColor *color){
vc.view.backgroundColor = color;
};
// [alertView showTwo];要不要都行 看情况而定
}