检测哪个按钮被按下？ （然后行动）

Question

这是我在SOF上的第一篇文章。 我是Objective-C的新程序员。 继承人我正在处理的“问题”

我创建了2个UIbutton：一个从屏幕顶部拉UIImageView，另一个将其推回。 我有代码的行动**，但我不知道如何将它与if语句如果（按钮1按下），然后拉视图其他（按下按钮2），然后推回查看。

-(void)viewDidLoad{ 
{super viewDidLoad] 

UIButton *button1 = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
button1.frame = CGRectMake(200, 0, 90, 30); 
[button1 addTarget:self action:@selector(buttonPressed1) forControlEvents:UIControlEventTouchUpInside]; 
[self.view addSubview:button1]; 

UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
button2.frame = CGRectMake(400, 0, 90, 30); 
[button2 addTarget:self action:@selector(buttonPressed2) forControlEvents:UIControlEventTouchUpInside]; 
[self.view addSubview:button2]; 
} 


** 

-(void)buttonPressed1 { 

double speed = 1/round(random() % 100) + 1.0; 

UIImageView *banetteView2 = [[UIImageView alloc] initWithImage:banetteImage]; 
banetteView2.frame = CGRectMake(100, -740, 568, 790); 
banetteView2.opaque = NO; 
[self.view addSubview:banetteView2]; 

[UIView beginAnimations:nil context:banetteView2]; 
[UIView setAnimationDuration: 2*speed ]; 

//banetteView2.frame = CGRectMake(100, -1, 568, 790); 

UIImageView *banetteView = [[UIImageView alloc] initWithImage:banetteImage]; 
banetteView.frame = CGRectMake(100, -740, 568, 790); 
banetteView.opaque = NO; 
banetteView.hidden = YES; 
[self.view addSubview:banetteView]; 


[UIView setAnimationDidStopSelector:@selector(onAnimationComplete:finished:context:)]; 
[UIView setAnimationDelegate:self]; 
[UIView commitAnimations]; 


} 

- (void)onAnimationComplete:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context { 

UIImageView *banetteView2 = context; 
[banetteView2 release]; 


double speed = 1/round(random() % 100) + 1.0; 
banetteView2.frame = CGRectMake(100, 0, 568, 790); 
banetteView2.opaque = NO; 
[self.view addSubview:banetteView2]; 

[UIView beginAnimations:nil context:banetteView2]; 
[UIView setAnimationDuration: 2*speed ]; 

//banetteView2.frame = CGRectMake(100, -740, 568, 790); 

} 

Answer 1

我不知道这是否适用于UIButtons，但对于普通可可按钮，您将添加一个参数有关发件人是这样的：

-(void)buttonPressed1:(id)sender 
{ 
    // And now you can check which button is the sender 
    if(sender==button1) 
     // Do stuff.... 
} 

然后ofcourse你就需要添加一个冒号就当你设置按钮动作的选择：（buttonPressed1 :) @selector

Answer 2

我发现通过调整该代码

http://mobile.tutsplus.com/tutorials/iphone/iphone-sdk-learning-about-touch-events-basic-game-animation/