ios - 禁用 UITextField 时如何在 leftView/rightView 中启用点击？

Question

我有一个 UITextField，我在 rightView 中添加了一个图像。我已经向这个 rightView 添加了一个手势，我想让它在 UITextField 被禁用时工作，因为这个 View 只在不编辑时显示。

这是我想要实现的图像示例:

• leftView 只是一个空白区域；
• rightView 只有图像。

下面是用于将外观应用到 UITextField 并将图像应用到 rightView 的代码:

- (void)applyAppearanceToTextField:(UITextField *)textField withRoundingCorner:(UIRectCorner)corner withIcon:(NSString *)icon {
    CAShapeLayer *shape = [[CAShapeLayer alloc] initWithLayer:textField.layer.mask];
    UIBezierPath *shadow = [UIBezierPath bezierPathWithRoundedRect:textField.bounds byRoundingCorners:corner cornerRadii:CGSizeMake(5, 5)];
    shape.path = shadow.CGPath;
    textField.layer.mask = shape;

    // Apply space to the left as a padding
    [textField setLeftView:[[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, textField.bounds.size.height)]];
    [textField setLeftViewMode:UITextFieldViewModeAlways];

    // Add the icon image to the right view
    CGFloat height = textField.bounds.size.height;
    UIImage *image = [UIImage imageWithIcon:icon backgroundColor:[UIColor clearColor] iconColor:[UIColor grayColor] andSize:CGSizeMake(height / 2, height / 2)];
    image = [UIImage imageWithCGImage:image.CGImage scale:image.scale orientation:UIImageOrientationUpMirrored];
    UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
    [imageView setBounds:CGRectMake(5, 0, image.size.width, image.size.width)];
    [imageView setUserInteractionEnabled:YES];
    [textField setRightView:imageView];
    [textField setRightViewMode:UITextFieldViewModeUnlessEditing];
    [textField.rightView setExclusiveTouch:YES];

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleIconTap:)];
    [textField.rightView addGestureRecognizer:tapGesture];
}

- (void)handleIconTap:(UITapGestureRecognizer *)gesture {
    NSLog(@"handleIconTap");
}

在 viewDidLoad 中，我检查该字段是否已填充，因此该字段已被禁用。当 UITextField 被禁用时，如何在 leftView/rightView 中启用点击？

Answer 1

我建议这样做:

您可以在 View 中嵌入您的 TextField 和 UIButton(或 UIImage，如果需要的话)并为您的 View 设置颜色和圆角半径