uibutton发送者标签

问题描述

我有一个UIImageView对象，单击该对象将播放动画，我想重用相同的代码来制作多个对象.如何设置发件人标记，以便它知道其不同的对象?

I have a UIImageView object that when clicked it will play a animation, I want to reuse the same code to make multiple objects. How do I set the sender tag so it knows its a different object?

.h

- (IBAction)startClick:(id)sender;

.m

- (IBAction)startClick:(id)sender
{
    //UIImageView *theButton = (UIImageView *)sender.tag;

    bubble.animationImages = [NSArray arrayWithObjects:
                           [UIImage imageNamed: @"Pop_1.png"],
                           [UIImage imageNamed: @"Pop_2.png"],
                           [UIImage imageNamed: @"Pop_3.png"], nil];

    [bubble setAnimationRepeatCount:1];
    bubble.animationDuration = 1;
    [bubble startAnimating];
}

推荐答案

发件人是调用startClick方法的对象.您可以将该对象转换为UIImageView，然后查看该对象的tag属性以确定它是哪个.

The sender is the object that called the startClick method. You can cast that object into a UIImageView and then look at that object's tag property to determine which one it is.

您需要在代码中的其他位置设置tag属性.如果在Interface Builder中具有UIImageViews，则可以使用属性窗口输入标签号.否则，当您分配并初始化UIImageViews时，然后设置tag属性.

You'll need to set the tag property elsewhere in the code. If you have the UIImageViews in Interface Builder, you can use the properties window to enter a tag number. Otherwise, when you allocate and init your UIImageViews, set the tag property then.

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