iOS: 学习笔记, 动态添加按钮

1. 新建iOS -> Single View Application.

2. 个性控制器文件YYViewController.m(此处修改为你相应的控制器文件名)

 //
 //  YYViewController.m
 //  StudyDynamicButton
 //
 //  Created by yao_yu on 14-5-27.
 //  Copyright (c) 2014年 yao_yu. All rights reserved.
 //

 #import "YYViewController.h"

 @interface YYViewController ()

 @end

 @implementation YYViewController

 - (void)onAddButtonClicked{
     CGRect pframe = self.view.frame;
     CGFloat width = ;
     CGFloat height = ;
     CGRect frame = CGRectMake(pframe.origin.x + (pframe.size.width - width)/, pframe.origin.y + height * , width, height);
     UIButton *btnAddedButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
     btnAddedButton.backgroundColor = [UIColor clearColor];
     [btnAddedButton setTitle:@"动态添加的按钮" forState:UIControlStateNormal];
     btnAddedButton.frame = frame;
     [btnAddedButton addTarget:self action:@selector(onDynamicButtonClicked) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btnAddedButton];
 }

 -(void) onDynamicButtonClicked{
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"您点击了动态按钮" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定",@"第二项", nil];
     [alert show];
 }

 -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
 {
     NSLog(@"按钮索引:%ld", buttonIndex);
 }

 - (void)viewDidLoad
 {
     [super viewDidLoad];

     //手动添加按钮
     CGRect pframe = self.view.frame;
     CGFloat width = ;
     CGFloat height = ;
     CGRect frame = CGRectMake(pframe.origin.x + (pframe.size.width - width)/, pframe.origin.y, width, height);
     UIButton *btnAddDynamicButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
     btnAddDynamicButton.backgroundColor = [UIColor clearColor];
     [btnAddDynamicButton setTitle:@"增加动态按钮" forState:UIControlStateNormal];
     btnAddDynamicButton.frame = frame;
     [btnAddDynamicButton addTarget:self action:@selector(onAddButtonClicked) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btnAddDynamicButton];
 }

 - (void)didReceiveMemoryWarning
 {
     [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
 }

 @end

3. 运行程序.