Question

单击时，我的编程创建按钮基本上没有被按下。知道为什么吗？没有任何事情发生，动作不会触发，图像也不会改变为替代图像等。

（我正在使用MomentaryChangeButton，但我已将其设置为MomentaryPushIn（以检查它是否正在推动。它并不令人沮丧。）

    NSButton *titleButton = [[NSButton alloc]initWithFrame:NSMakeRect(TITLE_BUTTON_X_OFFSET, TITLE_BUTTON_Y_OFFSET, TITLE_BUTTON_WIDTH, TITLE_BUTTON_HEIGHT)];
    [titleButton setBordered:NO];
    [titleButton setNeedsDisplay:YES];
    [titleButton setImage:[NSImage imageNamed:TITLE_BUTTON_NAME]];
    [titleButton setAlternateImage:[NSImage imageNamed:TITLE_BUTTON_PRESSED_NAME]];
    [titleButton setButtonType:NSMomentaryChangeButton];
    [self addSubview:titleButton];

    NSButton *aboutButton = [[NSButton alloc]initWithFrame:NSMakeRect(ABOUT_BUTTON_X_OFFSET, ABOUT_BUTTON_Y_OFFSET, ABOUT_BUTTON_WIDTH, ABOUT_BUTTON_HEIGHT)];
    [aboutButton setBordered:NO];
    [aboutButton setNeedsDisplay:YES];
    [aboutButton setButtonType:NSMomentaryChangeButton];
    [aboutButton setImage:[NSImage imageNamed:ABOUT_BUTTON_NAME]];
    [aboutButton setAlternateImage:[NSImage imageNamed:ABOUT_BUTTON_PRESSED_NAME]];
    [[aboutButton image] setSize:NSMakeSize(ABOUT_BUTTON_WIDTH, ABOUT_BUTTON_HEIGHT)];
    [[aboutButton alternateImage]setSize:NSMakeSize(ABOUT_BUTTON_WIDTH, ABOUT_BUTTON_HEIGHT)];
    [self addSubview:aboutButton];

    NSButton *settingsButton = [[NSButton alloc]initWithFrame:NSMakeRect(SETTINGS_BUTTON_X_OFFSET, SETTINGS_BUTTON_Y_OFFSET, SETTINGS_BUTTON_WIDTH, SETTINGS_BUTTON_HEIGHT)];
    [settingsButton setBordered:NO];
    [settingsButton setNeedsDisplay:YES];
    [settingsButton setButtonType:NSMomentaryChangeButton];
    [settingsButton setImage:[NSImage imageNamed:SETTINGS_BUTTON_NAME]];
    [settingsButton setAlternateImage:[NSImage imageNamed:SETTINGS_BUTTON_PRESSED_NAME]];
    [[settingsButton image] setSize:NSMakeSize(SETTINGS_BUTTON_WIDTH, SETTINGS_BUTTON_HEIGHT)];


    [self addSubview:settingsButton];

Answer 1

您必须为每个按钮实施setTarget:和setAction:。

完整的工具是：

-(void)awakeFromNib{

    NSString *SETTINGS_BUTTON_NAME=@"red.png";
    NSString *SETTINGS_BUTTON_PRESSED_NAME=@"green.png";

    NSButton *settingsButton = [[NSButton alloc]initWithFrame:NSMakeRect(20, 500, 120, 32)];
    [settingsButton setBordered:YES];
    [settingsButton setNeedsDisplay:YES];
    [settingsButton setButtonType:NSMomentaryChangeButton];
    [settingsButton setImage:[NSImage imageNamed:SETTINGS_BUTTON_NAME]];
    [settingsButton setAlternateImage:[NSImage imageNamed:SETTINGS_BUTTON_PRESSED_NAME]];
    [[settingsButton image] setSize:NSMakeSize(120,32)];

    [settingsButton setTitle:@"title"];
    [settingsButton setTarget: self];
    [settingsButton setAction: @selector(invisible:)]; //invisible is a selector see below
    [self.window.contentView addSubview: settingsButton];
}

- (IBAction)invisible:(id)sender{ //change this name accordingly
    NSLog(@"yepiiee");
}

编辑：根据我的方便，我做了一些更改，图像和框架矩形，你可以改变你的要求。

Answer 2

尝试检查要添加按钮的视图的帧。视图可以绘制其子视图，但如果按钮不在“可见”框架区域，则操作将无法接收。

以编程方式创建的NSButtons不会按

2 个答案: