UIButton 按钮点击常用效果，本文介绍：
1、BtnClickBlock 点击Block
2、使用颜色设置按钮背景 - (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state;
3、设置按钮额外热区
4、倒计时按钮
5、点赞动画💗
NO1 BtnClickBlock
1.1 代码
#import <objc/runtime.h>
static const void *UIButtonBlockKey = &UIButtonBlockKey;
@implementation UIButton (Category)
#pragma mark 按钮点击Block
-(void)add_BtnClickHandler:(BtnClickBlock)clickHandlerr{
objc_setAssociatedObject(self, UIButtonBlockKey, clickHandlerr, OBJC_ASSOCIATION_COPY_NONATOMIC);
[self addTarget:self action:@selector(actionTouched:) forControlEvents:UIControlEventTouchUpInside];
}
-(void)actionTouched:(UIButton *)btn{
BtnClickBlock block = objc_getAssociatedObject(self, UIButtonBlockKey);
if (block) {
block(btn.tag);
}
}
1.2 使用
[button04 add_BtnClickHandler:^(NSInteger tag) {
// do something
}];
NO2 使用颜色设置按钮背景
2.1 代码
/**
* @brief 使用颜色设置按钮背景
*
* @param backgroundColor 背景颜色
* @param state 按钮状态
*/
- (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state
{
[self setBackgroundImage:[UIButton imageWithColor:backgroundColor] forState:state];
}
//根据颜色生成一个图片
+ (UIImage *)imageWithColor:(UIColor *)color
{
CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
2.2 使用
[button01 setBackgroundColor:[UIColor orangeColor] forState:UIControlStateNormal];
NO3 设置按钮额外热区,增加按钮响应范围
3.1 代码
#pragma mark 设置按钮额外热区
/**
* @brief 设置按钮额外热区
*/
- (UIEdgeInsets)touchAreaInsets
{
return [objc_getAssociatedObject(self, @selector(touchAreaInsets)) UIEdgeInsetsValue];
}
- (void)setTouchAreaInsets:(UIEdgeInsets)touchAreaInsets
{
NSValue *value = [NSValue valueWithUIEdgeInsets:touchAreaInsets];
objc_setAssociatedObject(self, @selector(touchAreaInsets), value, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
UIEdgeInsets touchAreaInsets = self.touchAreaInsets;
CGRect bounds = self.bounds;
bounds = CGRectMake(bounds.origin.x - touchAreaInsets.left,
bounds.origin.y - touchAreaInsets.top,
bounds.size.width + touchAreaInsets.left + touchAreaInsets.right,
bounds.size.height + touchAreaInsets.top + touchAreaInsets.bottom);
return CGRectContainsPoint(bounds, point);
}
3.2 使用
button03.touchAreaInsets=UIEdgeInsetsMake(30, 30, 30, 30);
3.3 效果示例
1B9934C7-4806-48D6-B044-7D2DFCDAB326.jpeg
NO4 倒计时按钮
4.1 代码
#pragma mark 倒计时按钮
/**
* @brief 倒计时按钮
*
* @param timeout 时间
* @param tittle tittle
* @param waitTittle waitTittle
*/
-(void)add_startTime:(NSInteger )timeout title:(NSString *)tittle waitTittle:(NSString *)waitTittle{
__block NSInteger timeOut=timeout; //倒计时时间
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);
dispatch_source_set_timer(_timer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0); //每秒执行
dispatch_source_set_event_handler(_timer, ^{
if(timeOut<=0){ //倒计时结束，关闭
dispatch_source_cancel(_timer);
dispatch_async(dispatch_get_main_queue(), ^{
//设置界面的按钮显示 根据自己需求设置
[self setTitle:tittle forState:UIControlStateNormal];
self.userInteractionEnabled = YES;
});
}else{
// int minutes = timeout / 60;
int seconds = timeOut % 60;
NSString *strTime = [NSString stringWithFormat:@"%.2d", seconds];
dispatch_async(dispatch_get_main_queue(), ^{
//设置界面的按钮显示 根据自己需求设置
NSLog(@"____%@",strTime);
[self setTitle:[NSString stringWithFormat:@"%@%@",strTime,waitTittle] forState:UIControlStateNormal];
self.userInteractionEnabled = NO;
});
timeOut--;
}
});
dispatch_resume(_timer);
}
4.2 使用
[button02 add_startTime:12 title:@"倒计时" waitTittle:@"S"];
4.3 效果
5A996B8C-414A-4AC9-AF4C-54D036FDC099.jpeg
NO4 点赞动画
代码
- (void)start_ZanAnimation
{
CAKeyframeAnimation *clickAnima = [CAKeyframeAnimation animationWithKeyPath:@"transform.scale"];
clickAnima.values = @[@(0.1),@(1.0),@(1.5)];
clickAnima.keyTimes = @[@(0.0),@(0.5),@(0.8),@(1.0)];
clickAnima.calculationMode = kCAAnimationLinear;
[self.layer addAnimation:clickAnima forKey:@"commendAnimation"];
}
我是写代码的凡，如有错误，欢迎指正！🙂🙂🙂
