可以横向弹出的Button

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控件例子：http://download.csdn.net/detail/qqmcy/6972517

ViewController.m使用方法如下：例子来自网上，出处忘记了。我在原版基础上加了，主Button的代理回调

////  ViewController.m//  可以横向弹出的Button////  Created by 杜甲 on 14-2-28.//  Copyright (c) 2014年 杜甲. All rights reserved.//#import "ViewController.h"#import "OCExpandableButton.h"@interface ViewController ()<OCExpandableButtonAlignmentDelegate>@property (strong , nonatomic) OCExpandableButton* button;@end@implementation ViewController- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.        NSMutableArray *subviews = [[NSMutableArray alloc] init];        for(int i = 0; i < 2; i++) {        UIButton *numberButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 30.f, 30.f)];        numberButton.tag = i;        numberButton.backgroundColor = [UIColor clearColor];        [numberButton setTitle:[NSString stringWithFormat:@"%d", i] forState:UIControlStateNormal];        numberButton.titleLabel.textAlignment = NSTextAlignmentCenter;        [numberButton addTarget:self action:@selector(tapped:) forControlEvents:UIControlEventTouchUpInside];        [subviews addObject:numberButton];    }        self.button = [[OCExpandableButton alloc] initWithFrame:CGRectMake(0,  57, 39, 59) subviews:subviews];    //  button.backgroundColor = [UIColor redColor];        self.button.delegate = self;    //You can change the alignment with:    self.button.alignment = OCExpandableButtonAlignmentLeft;    [self.view addSubview:self.button];}- (void)tapped:(UIButton*)sender {        switch (sender.tag) {        case 0:                        break;                    default:            break;    }    [self.button close];    NSLog(@"tapped = %d",sender.tag);}-(void)mainButton:(BOOL)active{    }- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

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