iOS7 UIBarButtonItem UIButton

####iOS7 Programming Cookbook 第一章学习笔记 UIBarButtonItem

#####Adding Buttons to Navigation Bars Using UIBarButtonItem

- (void) segmentedControlTapped:(UISegmentedControl *)paramSender{
    
    switch (paramSender.selectedSegmentIndex){
        case 0:{
            NSLog(@"Up");
            break;
        }
        case 1:{
            NSLog(@"Down");
            break;
        }
    }
    
}
    
- (void)viewDidLoad{
    [super viewDidLoad];
    //nav title
    self.title = @"First Controller";
    //items数组
    NSArray *items = @[
                       @"Up",
                       @"Down"
                       ];
    //初始化UISegmentedControl组件
    UISegmentedControl *segmentedControl = [[UISegmentedControl alloc]
                                            initWithItems:items];
    //yes为UISegmentedControl选中以后不显示，no为默认显示选中
    segmentedControl.momentary = YES;
    
    //添加UISegmentedControl事件
    [segmentedControl addTarget:self
                         action:@selector(segmentedControlTapped:)
               forControlEvents:UIControlEventValueChanged];
    
    //初始化nav右边barbutton为自定义view，segmentedControl
    UIBarButtonItem *rightBarButton = [[UIBarButtonItem alloc] initWithCustomView:segmentedControl];
    
    //设置navigationItem为rightBarButton
    [self.navigationItem setRightBarButtonItem:rightBarButton
                                  animated:YES];
    
}

##iOS7 Programming Cookbook 第一章学习笔记 UIButton

###Adding Buttons to the User Interface with UIButton

- (void) buttonIsPressed:(UIButton *)paramSender{
    NSLog(@"Button is pressed.");
}
    
- (void) buttonIsTapped:(UIButton *)paramSender{
    NSLog(@"Button is tapped.");
}
    
- (void)viewDidLoad{
    [super viewDidLoad];
    
    //创建2个UIImage对象
    UIImage *normalImage = [UIImage imageNamed:@"NormalBlueButton"];
    UIImage *highlightedImage = [UIImage imageNamed:@"HighlightedBlueButton"];
    
    //设置button为自定义
    self.myButton = [UIButton buttonWithType:UIButtonTypeCustom];
    
    //坐标
    self.myButton.frame = CGRectMake(110.0f,
                                     200.0f,
                                     100.0f,
                                     44.0f);
    
    //设置未按下png
    [self.myButton setBackgroundImage:normalImage
                             forState:UIControlStateNormal];
    //设置未按下title
    [self.myButton setTitle:@"Normal"
                   forState:UIControlStateNormal];
    
    //设置按下png
    [self.myButton setBackgroundImage:highlightedImage
                             forState:UIControlStateHighlighted];
    //设置按下title
    [self.myButton setTitle:@"Pressed"
                   forState:UIControlStateHighlighted];
    
    //添加按下事件
    [self.myButton addTarget:self
                      action:@selector(buttonIsPressed:)
            forControlEvents:UIControlEventTouchDown];
    //添加按钮抬起事件
    [self.myButton addTarget:self
                      action:@selector(buttonIsTapped:)
            forControlEvents:UIControlEventTouchUpInside];
    //添加到view
    [self.view addSubview:self.myButton];
    
}

Reference

• O’Reilly Shop iOS 7 Programming Cookbook