Objective C，iOS，有哪些选项可以在 UIImageView 中的图像顶部添加一些文本？
我需要以编程方式添加一些数字/文本，以便它显示在我为多个 UIImageView 指定的图像顶部。我的用户还可以在屏幕上拖动图像视图。我需要文字同时移动。要移动图像视图，我使用此代码。
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
for (id football in multipleFootballs) {
UITouch *touch = [touches anyObject];
if ([touch view] == football) {
CGPoint pt = [[touches anyObject] locationInView:football];
CGRect frame = [football frame];
frame.origin.x += pt.x - startLocation.x;
frame.origin.y += pt.y - startLocation.y;
[football setFrame:frame];
}
}
}
I need to add some numbers / text, programmatically so it shows on top of an image I have specified for several UIImageViews. Also my users are able to drag the image view around the screen. I need the text to move at the same time. To move the image views I use this code..
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
for (id football in multipleFootballs) {
UITouch *touch = [touches anyObject];
if ([touch view] == football) {
CGPoint pt = [[touches anyObject] locationInView:football];
CGRect frame = [football frame];
frame.origin.x += pt.x - startLocation.x;
frame.origin.y += pt.y - startLocation.y;
[football setFrame:frame];
}
}
}
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几乎任何
UIView或UIView后代都可以作为子视图添加到任何其他UIView中。因此，您可以使用文本创建一个UILabel，并将其作为子视图添加到您的UIImageViews中，使用UILabel< 的适当的CGRect/code> 的框架将其放置在UIImageView中您想要的位置。Just about any
UIVieworUIViewdescendent can be added to any otherUIViewas a subview. So you could create aUILabelwith your text and add it as a subview to yourUIImageViewsusing an appropriateCGRectfor theUILabel's frame to position it where you want it in yourUIImageView.您可以子类化 UIImageview 并添加 UILabel 作为子视图。然后您可以编辑标签，它会无缝地工作。
You could subclass UIImageview and add a UILabel as a subview. Then you can edit the label and it would work seamlessly.