blocks|key|2038242|text|label实际上是NSView的子类NSTextField的实例。因此，由于它是一个NSView，因此必须将其添加到另一个视图中。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2038243|下面是一个有效的代码：|2038244|-+(void)applicationDidFinishLaunching:(NSNotification+*)aNotification
{
++++NSTextField+*textField;

++++textField+=+[[NSTextField+alloc]+initWithFrame:NSMakeRect(10,+10,+200,+17)];
++++[textField+setStringValue:@"My+Label"];
++++[textField+setBezeled:NO];
++++[textField+setDrawsBackground:NO];
++++[textField+setEditable:NO];
++++[textField+setSelectable:NO];
++++[view+addSubview:textField];
}|code-block|syntax|javascript|2038245|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Classes/NSTextField_Class/Reference/Reference.html^0|I|B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

A label is actually an instance of <a href="http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Classes/NSTextField_Class/Reference/Reference.html" rel="noreferrer">NSTextField</a>, a subclass of NSView. So, since it is a NSView, it has to be added to another view.

Here's a working code:

<pre><code>- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
 NSTextField *textField;

 textField = [[NSTextField alloc] initWithFrame:NSMakeRect(10, 10, 200, 17)];
 [textField setStringValue:@"My Label"];
 [textField setBezeled:NO];
 [textField setDrawsBackground:NO];
 [textField setEditable:NO];
 [textField setSelectable:NO];
 [view addSubview:textField];
}
</code></pre>

blocks|key|2038494|text|您可以尝试使用nib2objc来获取IB设置的所有属性|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2038495|entityMap|0|LINK|mutability|MUTABLE|url|http://github.com/akosma/nib2objc^0|7|8|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You could try using <a href="http://github.com/akosma/nib2objc" rel="noreferrer">nib2objc</a> to get all the properties that IB sets

blocks|key|1824525|text|具体地说，你会想要setBordered:NO，并设置边框样式，无论是什么边框样式，我忘记了。也可以使用setEditable:NO，也可以选择setSelectable:NO。这应该就足够了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1824526|entityMap^0|9|E|1G|E|20|G|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

Specifically, you will want to <code>setBordered:NO</code>, and set the bezel style to whatever that bezel style is which I forgot. Also <code>setEditable:NO</code>, and optionally <code>setSelectable:NO</code>. That should suffice.

blocks|key|2038788|text|Objective-C中的反汇编AppKit：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2038789|BOOL+TMPSierraOrLater()+{
++++static+BOOL+result+=+NO;
++++static+dispatch_once_t+onceToken;
++++dispatch_once(&onceToken,+%5E{
++++++++result+=+[NSProcessInfo.processInfo+isOperatingSystemAtLeastVersion:(NSOperatingSystemVersion){+10,+12,+0+}];
++++});
++++return+result;
}

@implementation+NSTextField+(TMP)

%2B+(instancetype)TMP_labelWithString:(NSString+*)stringValue+{
++++if+(TMPSierraOrLater())+{
++++++++return+[self+labelWithString:stringValue];
++++}
++++NSParameterAssert(stringValue);
++++NSTextField+*label+=+[NSTextField+TMP_newBaseLabelWithoutTitle];
++++label.lineBreakMode+=+NSLineBreakByClipping;
++++label.selectable+=+NO;
++++[label+setContentHuggingPriority:(NSLayoutPriorityDefaultLow+%2B+1)+forOrientation:NSLayoutConstraintOrientationHorizontal];
++++[label+setContentHuggingPriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationVertical];
++++[label+setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationHorizontal];
++++[label+setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationVertical];
++++label.stringValue+=+stringValue;
++++[label+sizeToFit];
++++return+label;
}

%2B+(instancetype)TMP_wrappingLabelWithString:(NSString+*)stringValue+{
++++if+(TMPSierraOrLater())+{
++++++++return+[self+wrappingLabelWithString:stringValue];
++++}
++++NSParameterAssert(stringValue);
++++NSTextField+*label+=+[NSTextField+TMP_newBaseLabelWithoutTitle];
++++label.lineBreakMode+=+NSLineBreakByWordWrapping;
++++label.selectable+=+YES;
++++[label+setContentHuggingPriority:NSLayoutPriorityDefaultLow+forOrientation:NSLayoutConstraintOrientationHorizontal];
++++[label+setContentHuggingPriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationVertical];
++++[label+setContentCompressionResistancePriority:NSLayoutPriorityDefaultLow+forOrientation:NSLayoutConstraintOrientationHorizontal];
++++[label+setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationVertical];
++++label.stringValue+=+stringValue;
++++label.preferredMaxLayoutWidth+=+0;
++++[label+sizeToFit];
++++return+label;
}

%2B+(instancetype)TMP_labelWithAttributedString:(NSAttributedString+*)attributedStringValue+{
++++if+(CRKSierraOrLater())+{
++++++++return+[self+labelWithAttributedString:attributedStringValue];
++++}
++++NSParameterAssert(attributedStringValue);
++++NSTextField+*label+=+[NSTextField+TMP_newBaseLabelWithoutTitle];
++++[label+setContentHuggingPriority:NSLayoutPriorityDefaultLow+forOrientation:NSLayoutConstraintOrientationHorizontal];
++++[label+setContentHuggingPriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationVertical];
++++[label+setContentCompressionResistancePriority:NSLayoutPriorityDefaultLow+forOrientation:NSLayoutConstraintOrientationHorizontal];
++++[label+setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh+forOrientation:NSLayoutConstraintOrientationVertical];
++++label.attributedStringValue+=+attributedStringValue;
++++[label+sizeToFit];
++++return+label;
}

#pragma+mark+-+Private+API

%2B+(instancetype)TMP_newBaseLabelWithoutTitle+{
++++NSTextField+*label+=+[[self+alloc]+initWithFrame:CGRectZero];
++++label.textColor+=+NSColor.labelColor;
++++label.font+=+[NSFont+systemFontOfSize:0.0];
++++label.alignment+=+NSTextAlignmentNatural;
++++label.baseWritingDirection+=+NSWritingDirectionNatural;
++++label.userInterfaceLayoutDirection+=+NSApp.userInterfaceLayoutDirection;
++++label.enabled+=+YES;
++++label.bezeled+=+NO;
++++label.bordered+=+NO;
++++label.drawsBackground+=+NO;
++++label.continuous+=+NO;
++++label.editable+=+NO;
++++return+label;
}

@end|code-block|syntax|javascript|2038790|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Disassembled AppKit in Objective-C:

<pre><code>BOOL TMPSierraOrLater() {
 static BOOL result = NO;
 static dispatch_once_t onceToken;
 dispatch_once(&amp;onceToken, ^{
 result = [NSProcessInfo.processInfo isOperatingSystemAtLeastVersion:(NSOperatingSystemVersion){ 10, 12, 0 }];
 });
 return result;
}

@implementation NSTextField (TMP)

+ (instancetype)TMP_labelWithString:(NSString *)stringValue {
 if (TMPSierraOrLater()) {
 return [self labelWithString:stringValue];
 }
 NSParameterAssert(stringValue);
 NSTextField *label = [NSTextField TMP_newBaseLabelWithoutTitle];
 label.lineBreakMode = NSLineBreakByClipping;
 label.selectable = NO;
 [label setContentHuggingPriority:(NSLayoutPriorityDefaultLow + 1) forOrientation:NSLayoutConstraintOrientationHorizontal];
 [label setContentHuggingPriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
 [label setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationHorizontal];
 [label setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
 label.stringValue = stringValue;
 [label sizeToFit];
 return label;
}

+ (instancetype)TMP_wrappingLabelWithString:(NSString *)stringValue {
 if (TMPSierraOrLater()) {
 return [self wrappingLabelWithString:stringValue];
 }
 NSParameterAssert(stringValue);
 NSTextField *label = [NSTextField TMP_newBaseLabelWithoutTitle];
 label.lineBreakMode = NSLineBreakByWordWrapping;
 label.selectable = YES;
 [label setContentHuggingPriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];
 [label setContentHuggingPriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
 [label setContentCompressionResistancePriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];
 [label setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
 label.stringValue = stringValue;
 label.preferredMaxLayoutWidth = 0;
 [label sizeToFit];
 return label;
}

+ (instancetype)TMP_labelWithAttributedString:(NSAttributedString *)attributedStringValue {
 if (CRKSierraOrLater()) {
 return [self labelWithAttributedString:attributedStringValue];
 }
 NSParameterAssert(attributedStringValue);
 NSTextField *label = [NSTextField TMP_newBaseLabelWithoutTitle];
 [label setContentHuggingPriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];
 [label setContentHuggingPriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
 [label setContentCompressionResistancePriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];
 [label setContentCompressionResistancePriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
 label.attributedStringValue = attributedStringValue;
 [label sizeToFit];
 return label;
}

#pragma mark - Private API

+ (instancetype)TMP_newBaseLabelWithoutTitle {
 NSTextField *label = [[self alloc] initWithFrame:CGRectZero];
 label.textColor = NSColor.labelColor;
 label.font = [NSFont systemFontOfSize:0.0];
 label.alignment = NSTextAlignmentNatural;
 label.baseWritingDirection = NSWritingDirectionNatural;
 label.userInterfaceLayoutDirection = NSApp.userInterfaceLayoutDirection;
 label.enabled = YES;
 label.bezeled = NO;
 label.bordered = NO;
 label.drawsBackground = NO;
 label.continuous = NO;
 label.editable = NO;
 return label;
}

@end
</code></pre>

In my desktop Mac OS X app, I'd like to programatically create a NSTextField "label" which has the same behavior and properties as a typical label created in Interface Builder.

I usually use (and very much like) IB, but in this case it must be done programatically.

Try as I might, I can't seem to find the combination of method calls that will programatically produce the same label-y behavior as a "Label" dragged from the IB View Library palette.

Can anyone provide or point out some example code of how to do this programatically? Thx.

Sample code for creating a NSTextField "label"?

Objective-C

在我的桌面Mac应用程序中，我想以编程方式创建一个NSTextField“标签”，它具有与在界面生成器中创建的典型标签相同的行为和属性。我通常使用(并且非常喜欢) IB，但在这种情况下，它必须通过编程来完成。尽管我可能会尝试，但我似乎找不到方法调用的组合，它将以编程方式产生与从IB View Library调色板中拖动的"Label“相同的label-y行为。有没有人能提供或指出一些如何通过编程实

问创建NSTextField“标签”的示例代码？
EN

回答 4

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问创建NSTextField“标签”的示例代码？EN

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问创建NSTextField“标签”的示例代码？
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