如何在iPhone中以编程方式添加下一个和上一个按钮? [英] How to add next and previous buttons programmatically in iPhone?

问题描述

在图像视图中，如何在iPhone中以编程方式添加下一个和上一个按钮(前后选项)?

Here in image view, how to add next and previous buttons (front and back options) programmatically in iPhone?

推荐答案

在图像视图中添加按钮?

Adding Button in image View?

如果是，则代码如下

    UIButton *nextBut=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    nextBut.frame= CGRectMake(x, y, 120, 100);
    [nextBut setTitle:@"Next" forState:UIControlStateNormal];
    [nextBut addTarget:self action:@selector(nextbuttonAction) forControlEvents:UIControlEventTouchUpInside];
    [self.imageView addSubview:nextBut];
    [nextBut release];

    UIButton *prevBut=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    prevBut.frame= CGRectMake(x, y, 120, 100);
    [prevBut setTitle:@"Previous" forState:UIControlStateNormal];
    [prevBut addTarget:self action:@selector(prevbuttonAction) forControlEvents:UIControlEventTouchUpInside];
    [self.imageView addSubview:prevBut];
    [prevBut release];

x，y是按钮在视图中的位置.

x,y is the position of the button in your view.

然后输入按钮操作的代码

Then code for the button actions,

-(IBAction)nextbuttonAction
{
//Next Button Action
}

-(IBAction)prevbuttonAction
{
//Previous Button Action
}

设置pickerView委托.在以下方法代码中，

set the pickerView delegate. In the following method code as follows,

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
 imageView.image=[UIImage imageNamed:[imageArray objectAtIndex:row]];
}

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