在界面構建器中添加的自定義UIView不會加載xib
[英]Custom UIView added in the interface builder does not load the xib
I have created custom UIView with a xib.
我用xib創建了自定義UIView。
In addition I have a UIViewController in my storyboard, to which I have added a UIView and set its class to be my custom UIView.
另外我在我的故事板中有一個UIViewController，我已經添加了一個UIView並將其類設置為我的自定義UIView。
But when I am running the app, the view doesn't have its subviews. When I debug, all the subviews are null.
但是當我運行應用程序時，視圖沒有其子視圖。當我調試時，所有子視圖都為null。
In .m of the custom UIView, these init methods are present:
在自定義UIView的.m中，存在以下init方法：
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
}
return self;
}
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
}
return self;
}
What am I missing?
我錯過了什么？
1 个解决方案
#1
31
As you already know, with a UIViewController we have the -initWithNibName:bundle: method to connect it with an xib.
But...
When it comes to a UIView, you need to use -loadNibNamed:owner:options: and load it with the xib. (simply specifying a custom class to the view in the xib won't work)
如您所知，使用UIViewController，我們使用-initWithNibName：bundle：方法將其與xib連接。但是......當談到UIView時，你需要使用-loadNibNamed：owner：options：並用xib加載它。 （只是在xib中為視圖指定自定義類將不起作用）
Suppose:
- Created a
UIViewsubclass calledCustomXIBView- (New File > Cocoa Touch > Objective-C Class -- Subclass of
UIView) - （新文件> Cocoa Touch> Objective-C類 - UIView的子類）
- (New File > Cocoa Touch > Objective-C Class -- Subclass of
- 創建了一個名為CustomXIBView的UIView子類（新文件> Cocoa Touch> Objective-C類 - UIView的子類）
- Created a Simple View User Interface and named it
CustomXIBView- (New File > User Interface > View)
- （新文件>用戶界面>查看）
- 創建一個簡單視圖用戶界面並將其命名為CustomXIBView（新文件>用戶界面>視圖）
Steps:
- Go to
CustomXIBView's nib - 轉到CustomXIBView的筆尖
- Select
View(left toolbar) - 選擇查看（左側工具欄）
- Select
Show Identity Inspector(3rd option in the panel on the right) - 選擇Show Identity Inspector（右側面板中的第3個選項）
- Specify
CustomXIBViewas the Custom Class of theView- don't do anything with
CustomXIBView'sFile's Ownerin the nib - 不要在筆尖中使用CustomXIBView的文件所有者做任何事情
- don't do anything with
- 將CustomXIBView指定為視圖的自定義類，不要在筆尖中使用CustomXIBView的文件所有者執行任何操作
- Drag Drop Objects and connect it with
CustomXIBView.h - 拖放對象並將其與CustomXIBView.h連接
Code:
//To load `CustomXIBView` from any `UIViewController` or other class:
//instead of the following commented code, do the uncommented code
//CustomXIBView *myCustomXIBViewObj = [CustomXIBView alloc] init];
//[myCustomXIBViewObj setFrame:CGRectMake(0,0,320,480)];
//Do this:
CustomXIBView *myCustomXIBViewObj =
[[[NSBundle mainBundle] loadNibNamed:@"someView"
owner:self
options:nil]
objectAtIndex:0];
[myCustomXIBViewObj setFrame:CGRect(0,
0,
myCustomXIBViewObj.frame.size.width,
myCustomXIBViewObj.frame.size.height)];
[self.view addSubview:myCustomXIBViewObj];
ref: http://eppz.eu/blog/uiview-from-xib/
參考：http：//eppz.eu/blog/uiview-from-xib/
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