iPhone开发技巧之私有API --- UIButton

如下图所示，指定 100 以上的UIButton的buttonWithType:就可以得到非公开的按钮风格。
[img]http://dl.iteye.com/upload/attachment/0066/1553/e401a77c-888f-3a4f-90f7-e1ba541a3dd8.png[/img]

其中 100 ～ 102 是 UINavigationButton 风格的按钮
[img]http://dl.iteye.com/upload/attachment/0066/1555/1622f3d2-7263-3897-b0f6-55e39aaa6541.png[/img]

UIButton *button;
    button = [UIButton buttonWithType:100]; 
    button.frame = CGRectMake(10.0f, 10.0f, button.frame.size.width, button.frame.size.height);
    [button setTitle:[NSString stringWithUTF8String:"100 番のボタン"] forState:UIControlStateNormal];
    [self.view addSubview:button];
    button = [UIButton buttonWithType:101]; 
    button.frame = CGRectMake(10.0f, 50.0f, button.frame.size.width, button.frame.size.height);
    [button setTitle:[NSString stringWithUTF8String:"101 番のボタン"] forState:UIControlStateNormal];
    [self.view addSubview:button];
    button = [UIButton buttonWithType:102];
    button.frame = CGRectMake(10.0f, 90.0f, button.frame.size.width, button.frame.size.height);
    [button setTitle:[NSString stringWithUTF8String:"102 番のボタン"] forState:UIControlStateNormal];
    [self.view addSubview:button];

[img]http://dl.iteye.com/upload/attachment/0066/1557/d1951c14-9af9-380f-942b-51266924d0a0.png[/img]

button = [UIButton buttonWithType:110];
    button.frame = CGRectMake(10.0f, 130.0f, 140.0f, 40.0f); 
    [button setTitle:[NSString stringWithUTF8String:"110 番のボタン"] forState:UIControlStateNormal];
    [self.view addSubview:button];

[img]http://dl.iteye.com/upload/attachment/0066/1559/e4362127-98da-3d1a-aeca-55d08b614a88.png[/img]

button = [UIButton buttonWithType:111];
    button.frame = CGRectMake(10.0f, 180.0f, 180.0f, 40.0f); 
    [button setTitle:[NSString stringWithUTF8String:"111 番のボタン"] forState:UIControlStateNormal];
    [self.view addSubview:button]; button = [UIButton buttonWithType:111];
    button.frame = CGRectMake(10.0f, 230.0f, 180.0f, 40.0f);
    [button setTitle:[NSString stringWithUTF8String:"111 番のボタン"] forState:UIControlStateNormal];
    [button setTintColor:[UIColor redColor]]; 
    [self.view addSubview:button]; button = [UIButton buttonWithType:111];
    button.frame = CGRectMake(10.0f, 280.0f, 180.0f, 40.0f); 
    [button setTitle:[NSString stringWithUTF8String:"111 番のボタン"] forState:UIControlStateNormal];
    [button setTintColor:[UIColor blueColor]]; 
    [self.view addSubview:button];