如何在 iOS 中的其他视图后面添加一个视图
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How to add a view behind other view in iOS
提问by Denis Kutlubaev
I want to add a view under my tab bar analog in iOS and then show it with animation coming from behind it. But when I use my code, the view that must come from behind my tab bar overlaps my tab bar for a while.
我想在 iOS 中我的标签栏模拟下添加一个视图，然后用来自它后面的动画显示它。但是当我使用我的代码时，必须来自我的标签栏后面的视图与我的标签栏重叠了一段时间。
This is my code:
这是我的代码：
- (void)handlePressedButton {
if (pressedButton.selected) {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
CGAffineTransform transform1 = CGAffineTransformMakeTranslation(-196.0, 0.0);
CGAffineTransform transform2 = CGAffineTransformMakeTranslation(0.0, 0.0);
[leftPanelView setTransform:transform1];
[movedView setTransform:transform2];
[UIView commitAnimations];
pressedButton.selected = NO;
}
else {
pressedButton.selected = YES;
if (leftPanelView) {
[leftPanelView removeFromSuperview];
leftPanelView = nil;
}
CGRect viewFrame = CGRectMake(-196, 0, 236, 748);
leftPanelView = [[UIView alloc] initWithFrame:viewFrame];
leftPanelView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"left-nav-content.png"]];
// Code to populate leftPanelView according to what button is pressed.
[self populateLeftPanelView];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[self.view addSubview:leftPanelView];
CGAffineTransform transform1 = CGAffineTransformMakeTranslation(236.0, 0.0);
CGAffineTransform transform2 = CGAffineTransformMakeTranslation(112.0, 0.0);
[leftPanelView setTransform:transform1];
[movedView setTransform:transform2];
[UIView commitAnimations];
}
}
}
Here the leftPanelView is the view that must come under a tab bar. Moved view is another view, that is at the right of left panel (don't mind it)
这里的 leftPanelView 是必须位于标签栏下的视图。移动视图是另一个视图，位于左侧面板的右侧（不要介意）
回答by He Shiming
Besides addSubview, there are other methods you can rely on to add your view:
此外addSubview，您还可以依赖其他方法来添加视图：
– insertSubview:aboveSubview:
– insertSubview:belowSubview:
– insertSubview:atIndex:
You can control the index (actually z-index, or layer order) of the view using these methods.
您可以使用这些方法控制视图的索引（实际上是 z-index 或图层顺序）。
回答by ader
回答by xmasalov
Swift 5
斯威夫特 5
Inserta view belowanother view in the view hierarchy:
在视图层次结构中的另一个视图下方插入一个视图：
view.insertSubview(subview1, belowSubview: subview2)
Inserta view aboveanother view in the view hierarchy:
在视图层次结构中的另一个视图上方插入一个视图：
view.insertSubview(subview1, aboveSubview: subview2)
Inserta subview at the specified index:
在指定的索引处插入一个子视图：
view.insertSubview(subview, at: index)
Movethe specified subview so that it appears behindits siblings:
移动指定的子视图，使其出现在其兄弟视图的后面：
subview1.sendSubviewToBack(subview2)
Movethe specified subview so that it appears on topof its siblings:
移动指定的子视图，使其出现在其兄弟视图之上：
subview1.bringSubviewToFront(subview2)
Exchangethe subviews at the specified indices:
交换指定索引处的子视图：
view.exchangeSubview(at: index1, withSubviewAt: index2)
回答by Denis Kutlubaev
Oh, I found a solution myself. I added after this:
哦，我自己找到了解决方案。我在这之后补充道：
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[self.view addSubview:leftPanelView];
this line:
这一行：
[self.view sendSubviewToBack:leftPanelView];
回答by Vinoth Vino
In Swift 5
在斯威夫特 5
self.view.sendSubviewToBack(leftPanelView)
回答by myra
Another nice idea is to give the Subviews a tag.
另一个好主意是给子视图一个标签。
Swift
迅速
mainView.addSubView(topView)
mainView.addSubView(bottomView)
topView.tag = 2
mainView.insertSubview(bottomView, belowSubview: mainView.viewWithTag(2))
回答by xmasalov
Objective-C
目标-C
Inserta view belowanother view in the view hierarchy:
在视图层次结构中的另一个视图下方插入一个视图：
- (void)insertSubview:(UIView *)subview1
belowSubview:(UIView *)subview2;
Inserta view aboveanother view in the view hierarchy:
在视图层次结构中的另一个视图上方插入一个视图：
- (void)insertSubview:(UIView *)subview1
aboveSubview:(UIView *)subview2;
Inserta subview at the specified index:
在指定的索引处插入一个子视图：
- (void)insertSubview:(UIView *)view
atIndex:(NSInteger)index;
Movethe specified subview so that it appears behindits siblings:
移动指定的子视图，使其出现在其兄弟视图的后面：
- (void)sendSubviewToBack:(UIView *)view;
Movethe specified subview so that it appears on topof its siblings:
移动指定的子视图，使其出现在其兄弟视图之上：
- (void)bringSubviewToFront:(UIView *)view;
Exchangethe subviews at the specified indices:
交换指定索引处的子视图：
- (void)exchangeSubviewAtIndex:(NSInteger)index1
withSubviewAtIndex:(NSInteger)index2;
