iphone – 添加按钮到uitextfield

发布时间：2020-12-15 01:39:53 所属栏目：百科来源：网络整理

导读：当我点击里面的文本框,如何添加加号按钮到UITextField,如下面的屏幕所示？当此按钮被点击时,它将启动iPhone联系人应用程序.我非常感谢任何代码示例.谢谢解决方法使用以下方法添加UIButton [self.txtField addTarget:self action:@selector(textFieldDidCha

当我点击里面的文本框,如何添加加号按钮到UITextField,如下面的屏幕所示？当此按钮被点击时,它将启动iPhone联系人应用程序.我非常感谢任何代码示例.谢谢

解决方法

使用以下方法添加UIButton

[self.txtField addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];

- (BOOL) textFieldDidChange:(UITextField *)textField
{
    UIButton *btnColor = [UIButton buttonWithType:UIButtonTypeCustom];
    [btnColor addTarget:self action:@selector(btnColorPressed:) forControlEvents:UIControlEventTouchUpInside];
    btnColor.frame = CGRectMake(self.txtTag.bounds.size.width - 50,5,25,25);
    [btnColor setBackgroundImage:[UIImage imageNamed:@"PaintPickerButton.png"] forState:UIControlStateNormal];
    [self.txtTag addSubview:btnColor];

    return YES;
}

或写

-(BOOL) textFieldShouldBeginEditing:(UITextField *)textField
{
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:0.3f];
    // self.scrollView.frame = CGRectMake(0,35,self.view.bounds.size.width,self.view.bounds.size.height - 250);
    [UIView commitAnimations];

    UIButton *btnColor = [UIButton buttonWithType:UIButtonTypeCustom];
    [btnColor addTarget:self action:@selector(btnColorPressed:) forControlEvents:UIControlEventTouchUpInside];
    btnColor.frame = CGRectMake(150,25);
    [btnColor setBackgroundImage:[UIImage imageNamed:@"PaintPickerButton.png"] forState:UIControlStateNormal];
    [self.txtField addSubview:btnColor];

    return YES;
}

（编辑：李大同）

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