Question

我有一个视图，我在该视图上添加了文本和图像。我希望如果我添加一个图像，然后同时我也添加了下一个和下一个图像，但我有问题。当我在特定视图中移动一个图像时，其他图像也不会消失。

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

    UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];

    self.imageView.hidden =NO;

    self.imageView .image = image;

    [txtNotes addSubview:self.imageView];

    [picker dismissViewControllerAnimated:YES completion:NULL];

}

enter image description here

Answer 1

尝试此操作以在imagesView ....

上显示图像

UIImageView *imageView;
NSArray *arrayOfImage=[[NSArray alloc]initWithObjects:@"i1.jpg",@"i2.jpg",@"i3.png", nil];;
float x=10;
float y=50;
float width=100;
float height=100;
int i=0;
for(i=0;i<[arrayOfImage count];i++)
{
   imageView=[[UIImageView alloc]initWithFrame:CGRectMake(x+width*i, y, width, height)];
    imageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@",[arrayOfImage objectAtIndex:i]]];
     [self.view addSubview:imageView];
}
else if(i==[arrayOfImage count])
    {
        i=0;
        imageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@",[arrayOfImage objectAtIndex:i]]];
        [self.view addSubview:imageView];
        i++;

    }

如果你想在下一个按钮和后退按钮上更改我的图像...然后尝试下面的代码

- (IBAction)btnClicked:(id)sender
{

UIImageView *imageView;
NSArray *arrayOfImage=[[NSArray alloc]initWithObjects:@"i1.jpg",@"i2.jpg",@"i3.png",@"i1.jpg",@"i2.jpg",@"i3.png", nil];;
float x=100;
float y=100;
float width=100;
float height=100;

imageView=[[UIImageView alloc]initWithFrame:CGRectMake(x, y, width, height)];
if([sender tag]==0)
{
    if(i<[arrayOfImage count])
    {
        imageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@",[arrayOfImage objectAtIndex:i]]];
        [self.view addSubview:imageView];
        i++;
    }
    else if(i==[arrayOfImage count])
    {
        i=0;
        imageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@",[arrayOfImage objectAtIndex:i]]];
        [self.view addSubview:imageView];
        i++;

    }

}else
{
    if(i<[arrayOfImage count])
    {
        imageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@",[arrayOfImage objectAtIndex:i]]];
        [self.view addSubview:imageView];
        i--;
    }
    else if(i==-1)
    {
        i=0;
        imageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@",[arrayOfImage objectAtIndex:i]]];
        [self.view addSubview:imageView];
        i++;

    }

}


}

注意：将Tag to Next按钮设置为0并将tag设置为后退按钮为1。

Answer 2

使用多个UIImageViews，在使用addSubview放置它们之前，设置一个框架，对于每个UIImageView都是不同的。

将多个图像放入一个UIImageView当然是可能的，但可能只有将图像合并为一个才能实现，我认为这不是最佳选择。怎么做，你可以在那里找到接受的答案：

iOS - Merging two images of different size

如何将多个图像添加到图像视图

2 个答案: