blocks|key|1893488|text|您可以将更改包装在禁用动画的CATransaction中：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1893489|[CATransaction+begin];
[CATransaction+setValue:(id)kCFBooleanTrue+forKey:kCATransactionDisableActions];
//change+background+colour
[CATransaction+commit];|code-block|syntax|javascript|1893490|entityMap^0|E|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can wrap the change in a <code>CATransaction</code> with disabled animations:

<pre><code>[CATransaction begin];
[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
//change background colour
[CATransaction commit];
</code></pre>

blocks|key|1893504|text|目标C：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1893505|[CATransaction+begin];
[CATransaction+setDisableActions:YES];
//+your+code+here++++++++
[CATransaction+commit];|code-block|syntax|javascript|1893506|Swift：|1893507|CATransaction.begin()
CATransaction.setDisableActions(true)

//+your+code+here++++++++
CATransaction.commit()|1893508|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Objective C:
<pre><code>[CATransaction begin];
[CATransaction setDisableActions:YES];
// your code here 
[CATransaction commit];
</code></pre>
Swift:
<pre><code>CATransaction.begin()
CATransaction.setDisableActions(true)

// your code here 
CATransaction.commit()
</code></pre>

blocks|key|4664537|text|Swift|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4664538|这里已经有几个其他的Swift答案，但我认为这是最基本的答案：|4664539|CATransaction.begin()
CATransaction.setDisableActions(true)

//+change+the+layer's+background+color

CATransaction.commit()|code-block|syntax|javascript|4664540|entityMap^0|0|5|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|S|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Swift

There are a couple other Swift answers here already, but I think this is the most basic answer:

<pre><code>CATransaction.begin()
CATransaction.setDisableActions(true)

// change the layer's background color

CATransaction.commit()
</code></pre>

blocks|key|1143925|text|试着给你的层一个delegate，然后让delegate实现：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1143926|-+(id<CAAction>)actionForLayer:(CALayer+*)layer+forKey:(NSString+*)key+{
++++return+[NSNull+null];
}|code-block|syntax|javascript|1143927|entityMap^0|8|8|K|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Try giving your layer a <code>delegate</code> and then have the <code>delegate</code> implement:

<pre><code>- (id&lt;CAAction&gt;)actionForLayer:(CALayer *)layer forKey:(NSString *)key {
 return [NSNull null];
}
</code></pre>

blocks|key|4664425|text|如果要完全禁用属性的隐式动画，可以通过分配给actions字典来执行此操作：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4664426|myLayer.actions+=+@{@"backgroundColor":+[NSNull+null]};|code-block|syntax|javascript|4664427|如果您希望逐个禁用隐式动画，那么使用[CATransaction+setDisableActions:YES]仍然是更好的方法。|4664428|entityMap^0|M|7|0|0|I|11|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

If you want to disable implicit animations for a property completely, you can do so by assigning to the <code>actions</code> dictionary:

<pre><code>myLayer.actions = @{@"backgroundColor": [NSNull null]};
</code></pre>

If you wish to disable the implicit animation on a case by case basis, then using <code>[CATransaction setDisableActions:YES]</code> is still the better way to do it.

blocks|key|1893575|text|我已经接受了Ben的答案，并制作了一个Swift+helper函数，这里是它对任何人都有用的情况：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1893576|func+withoutCAAnimations(closure:+()+->+())+{
++++CATransaction.begin()
++++CATransaction.setValue(kCFBooleanTrue,+forKey:+kCATransactionDisableActions)
++++closure()
++++CATransaction.commit()
}

#+Example+usage:
withoutCAAnimations+{+layer.backgroundColor+=+greenColor;+}|code-block|syntax|javascript|1893577|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|$]]

I've taken Ben's answer and made a Swift helper function, here it is in case it'll be useful for anyone:

<pre><code>func withoutCAAnimations(closure: () -&gt; ()) {
 CATransaction.begin()
 CATransaction.setValue(kCFBooleanTrue, forKey: kCATransactionDisableActions)
 closure()
 CATransaction.commit()
}

# Example usage:
withoutCAAnimations { layer.backgroundColor = greenColor; }
</code></pre>

blocks|key|1146516|text|在swift中停止层上的隐式动画：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1146517|override+func+actionForLayer(layer:+CALayer,+forKey+event:+String)+->+CAAction?+{
++++return+NSNull()
}|code-block|syntax|javascript|1146518|请记住将CALayer实例的委托设置为至少扩展NSObject的类的实例。在本例中，我们扩展了NSView。|1146519|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

<h2>Stop implicit animation on a layer in swift:</h2>

<pre><code>override func actionForLayer(layer: CALayer, forKey event: String) -&gt; CAAction? {
 return NSNull()
}
</code></pre>

Remember to set the delegate of your CALayer instance to an instance of a class that at least extends NSObject. In this example we extend NSView.

When I set the <code>backgroundColor</code> property of an <code>CALayer</code> instance, the change seems to be slightly animated. But I don't want that in my case. How can I set the <code>backgroundColor</code> without animation?

How to prevent CALayer from implicit animations?

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当我设置CALayer实例的backgroundColor属性时，更改似乎有点动画效果。但我不想在我的情况下那样。没有动画的情况下如何设置backgroundColor？

问如何防止CALayer中的隐式动画？
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问如何防止CALayer中的隐式动画？
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