目的：
触摸内部时，将更改按钮背景图像
码：
- (void)addMyButton{ // Method for creating button, with background image and other properties
UIButton *playButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
[self.view addSubview:playButton];
playButton.frame = CGRectMake(150, 150, 100, 100);
//set title,backgroundcolor...
UIImage *buttonImageNormal = [UIImage imageNamed:@"red.png"];
UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:0 topCapHeight:0];
[playButton setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal];
if([playButton isTouchInside:[UIImage buttonImageNormal]]) //This line warning
{
UIImage *buttonImageNormal2 = [UIImage imageNamed:@"yellow.png"];
UIImage *strechableButtonImageNormal2 = [buttonImageNormal2 stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[playButton setBackgroundImage:strechableButtonImageNormal2 forState:UIControlStateNormal];
}
}
请告诉我我目前在警告栏中所做的事情。
告诉我什么错误。
并告诉我'isTouchInside'的语法。
如果你喜欢，就做我的目标。
最佳答案
尝试更改：
if([playButton isTouchInside:[UIImage buttonImageNormal]])
至：
if([playButton isTouchInside])
isTouchInside不接受任何参数