ios - 将外部 UI 组件添加到 Storyboard

Question

我想在 Xcode 6 中向 Storyboard添加一个外部 UI 组件(例如，来自 https://github.com/a1anyip/AYVibrantButton 的自定义按钮)。是否可以通过拖放直接将其添加到 Storyboard 中？如果不是，我应该在哪里调用init函数，如何在代码中指定它的位置？非常感谢。

Answer 1

如果您查看代码和 AYVibrantButton 的自述文件，它说您应该将按钮添加到 UIVisualEffectView，并且必须使用initWithFrame:style:。当你向 Storyboard添加一个按钮并将其类设置为 AYVibrantButton 时，调用的 init 方法将是 initWithCoder:，因此作者在 中所做的设置都没有>initWithFrame:style: 发生。如果要在 Storyboard中添加按钮，则需要更新代码以包含 initWithCoder: 方法。将作者代码中的 initWithFrame:style: 实现替换为以下内容，

- (instancetype)initWithFrame:(CGRect)frame style:(AYVibrantButtonStyle)style {
    if (self = [super initWithFrame:frame]) {
        self.style = style;
        [self commonSetup];
    }
    return self;
}


-(instancetype)initWithCoder:(NSCoder *)aDecoder {
    if (self = [super initWithCoder:aDecoder]) {
        self.style = AYVibrantButtonStyleFill; // need to add add a style here. Change it to one of the other styles to match your needs
        [self commonSetup];
    }
    return self;
}


-(void)commonSetup {
    self.opaque = NO;
    self.userInteractionEnabled = YES;

    // default values
    _animated = YES;
    _animationDuration = kAYVibrantButtonDefaultAnimationDuration;
    _cornerRadius = kAYVibrantButtonDefaultCornerRadius;
    _roundingCorners = kAYVibrantButtonDefaultRoundingCorners;
    _borderWidth = kAYVibrantButtonDefaultBorderWidth;
    _translucencyAlphaNormal = kAYVibrantButtonDefaultTranslucencyAlphaNormal;
    _translucencyAlphaHighlighted = kAYVibrantButtonDefaultTranslucencyAlphaHighlighted;
    _alpha = kAYVibrantButtonDefaultAlpha;
    _activeTouch = NO;

    // create overlay views
    [self createOverlays];

#ifdef __IPHONE_8_0
    // add the default vibrancy effect
    self.vibrancyEffect = [UIVibrancyEffect effectForBlurEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]];
#endif

    [self addTarget:self action:@selector(touchDown) forControlEvents:UIControlEventTouchDown | UIControlEventTouchDragInside];
    [self addTarget:self action:@selector(touchUp) forControlEvents:UIControlEventTouchUpInside | UIControlEventTouchUpOutside | UIControlEventTouchDragOutside | UIControlEventTouchCancel];
}