我有3个按钮和3个UIImageViews,所有按钮都打开了UIImagePickerController。我希望按钮1打开UIImagePickerController,然后将所选图像设置为UIImageView 1,按钮2打开UIImagePickerController,并将所选图像设置为UIImageView 2,等等。如何才能做到这一点?谢谢!
答案 0 :(得分:1)
您可以将标签(1,2,3
)设置为按钮,以确定用户按下了哪个按钮。将此值存储到某个变量中,稍后使用它来确定从UIImagePickerController接收UIImage所需的UIImageView。
更新。 可以在Interface Bulder中或在代码中设置标签:
button1.tag = 1;
在控制器中存储当前标记使用变量:
@interface NameOfYourController : UIViewController
{
NSInteger currentTag;
}
要获取按钮标记,请在按钮内部使用此内容事件:
-(void)buttonTap:(UIButton *)sender
{
currentTag = sender.tag;
}
当UIImagePickerController调用媒体选择完成时,使用存储的标记:
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *img = info[UIImagePickerControllerOriginalImage];
if (currentTag==1)
imageView1.image = image;
else if (currentTag==2)
imageView2.image = image;
else if (currentTag==3)
imageView3.image = image;
}