请问下UIButton点击后改变背景的方法
http://www.cocoachina.com/bbs/read.php?tid-48666-keyword-UIButton.html
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//初始设置：
UIImage *bgImg1 = [UIImage imageNamed:@"Selected.png"];
UIImage *bgImg2 = [UIImage imageNamed:@"Unselected.png"];
[btn setImage:bgImg2 forState:UIControlStateNormal];
[btn setImage:bgImg1 forState:UIControlStateSelected];
//然后在button的Action方法改变button状态：
- (IBAction) buttonTouch:(id)sender
{
UIButton *button = (UIButton *)sender;
button.selected = !button.selected;
}
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——————————————————————
批量创建button
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for(int
i=1; i<=6;i++) {
UIButton btn;
bt setTitle:@"btn..."
forState....]
btn.tag = i;
[myview addSubview bt];
}
//获得button
UIButton *bt1 = (UIButton *)[myview viewWithTag:1];
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获取UIView上所有的Button的tag值
UIView上循环了很多UIButton,然后button点击后tag+100.然后我要做一个多选的形式，最后统计的时候统计tag<100的，取对应数组里的数据。如何button的tag值。
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for(id
obj in [uiview subviews])
{
if([obj isKindofClass:[UIButton class]])
{
UIButton *ButtonTmp = (UIButton *)obj;
if(ButtonTmp.tag<100)
{
NSLog(@"我就是你想要的tag小于100的button")；
}
else
{
NSLog(@"这些都是tag大于等于100的button")
}
}
}
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-------------获取父视图tag值-------------
button.superview.tag
----------------改变button背景-----
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- (void)selectChange:(id)sender
{
UIButton *btn = (UIButton *)sender;
[UIView animateWithDuration:0.6 animations:^{
if
(btn.tag==1) {
self.btnview.frame=CGRectMake(100, 100, 50, 30) ;
}else{
self.btnview.frame=CGRectMake(200, 100, 50, 30) ;
}
} ];
}
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自定义cell中有一个button按钮，按下按钮的同时怎么获得该按钮所在的行的row值
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//------解决方案--------------------
[(UIButton *)[cell viewWithTag:5] addTarget:self
action:@selector(btnPress:) forControlEvents:UIControlEventTouchUpInside];
UIButton *btn=(UIButton *)[cell viewWithTag:5];
btn.tag=indexPath.row+100;
//------解决方案--------------------
//给button设定tag值，跟row值有固定的关系
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iPhone的九宫格实现代码
http://www.cocoachina.com/iphonedev/sdk/2010/0803/1968.html
UIButton点击后改变背景的等方法 按钮,码迷,mamicode.com
时间： 2024-10-06 06:38:36
