//
// ViewController.h
// UIButtonApply
//
// Created by zhyunfe on 16/9/21.
// Copyright © 2016年 zhyunfe. All rights reserved.
//
#import <UIKit/UIKit.h>
/*
//MARK: -Navigation
//在UI中展示两个Button,btn1和btn2,
//当点击一个btn1的时候,btn1.enable = false,btn2.enable = true
//当点击btn2的时候,btn2.enable = false,btn1.enable = true
*/
@interface ViewController : UIViewController
{
//创建一个全局的button来存放不可用btn
UIButton *_button;
}
- (IBAction)btn1Click:(UIButton *)sender;
- (IBAction)btn2Click:(UIButton *)sender;
@end
- (IBAction)btn1Click:(UIButton *)sender {
//将被点击的按钮状态设置为false,让全局中存储的之前的btn的状态设置为true,然后将本次点击的btn存储到全局的button中,这样就保证了全局的button存放的一直是不可用的btn,当点击另外一个按钮的时候,释放不可用的btn
_button.enabled = true;
sender.enabled = false;
_button = sender;
}
- (IBAction)btn2Click:(UIButton *)sender {
_button.enabled = true;
sender.enabled = false;
_button = sender;
}
@end
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