重写 button 的创建方法
//sxc时时改变
// self.videoM.progress = progress;
// if ([self.videoM.downloadStr
isEqualToString:@"100%"]) {
// self.downloadBtn.titleLabel.
text = @"已缓存";
// }else{
// self.downloadBtn.titleLabel.text
= self.videoM.downloadStr;
// NSLog(@"%@=---------",self.v
ideoM.downloadStr);
// }//有两种重写方法,主要看你想怎么去创建
这个button
-(void)setFrame:(CGRect)frame
{
[super setFrame:frame];
[self.icon removeFromSuperview];
[self.textLabel removeFromSuperview];
[self.iconSelected
removeFromSuperview];
//创建一个正方形 的imageView (只读的不能
self. set方法不可以)
_icon= [[UIImageViewalloc]
initWithFrame:CGRectMake(0, 0,
frame.size.height, frame.size.height)];
[self addSubview:self.icon];
_iconSelected= [[UIImageViewalloc]
initWithFrame:self.icon.bounds];
self.iconSelected.hidden = YES;
[self addSubview:self.iconSelected];
_textLabel= [[UILabelalloc]
initWithFrame:CGRectMake(frame.size.height,
0, frame.size.width- frame.size.height,
frame.size.height)];
_textLabel.textColor= [UIColor
whiteColor];
_textLabel.font= [UIFont
systemFontOfSize:14];
[self addSubview:self.textLabel];
//第二种
//装逼的创建方法 只执行一次,单例方法也可用
//
//
//
initWithFrame:CGRectMake(0, 0,
frame.size.height, frame.size.height)];
-
// [self addSubview:self.icon];
////
// _textLabel = [[UILabel alloc]
initWithFrame:CGRectMake(frame.size.height,
0, frame.size.width - frame.size.height,
frame.size.height)];
// [self
addSubview:self.textLabel];
//
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_icon = [[UIImageView alloc]
// });
}
#pragma mark 重写selected方法,做图片更换
- (void)setSelected:(BOOL)selected
{
//父类怎么做 还怎么做我们只是在它原有的基础
上添加自己的方法
[super setSelected:selected];
//根据selected属性对图片做修改
if(selected) {
self.iconSelected.hidden = NO;
self.icon.hidden = YES;
}else
{
self.iconSelected.hidden = YES;
self.icon.hidden = NO;
}
}
//使用alloc创建
-
(instancetype)initWithFrame:(CGRect)frame
{
self= [superinitWithFrame:frame];
if(self) {
}
return self;
}