CKAsyncLayer(Subclass) Category Reference
| Declared in | CKAsyncLayerSubclass.h |
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– willDisplayAsynchronouslyWithDrawParameters:
Called on the main thread just before an async display operation is begun. Override in a subclass if you desire.
- (id)willDisplayAsynchronouslyWithDrawParameters:(id<NSObject>)drawParametersParameters
drawParameters |
The draw parameters returned from -drawParameters that will be passed to the async operation. |
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Return Value
A CGImageRef if you want to specify that async display should be skipped; the returned CGImageRef will be used instead.
Declared In
CKAsyncLayerSubclass.h
– didDisplayAsynchronously:withDrawParameters:
Called on the main thread after an async display has successfully completed, just before the new rendered contents are applied via setContents:. Override in a subclass if you desire.
- (void)didDisplayAsynchronously:(id)newContents withDrawParameters:(id<NSObject>)drawParametersParameters
newContents |
The resulting CGImageRef that will be assigned to the layer’s contents property. |
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drawParameters |
The parameters used to asynchronously display the layer. |
Declared In
CKAsyncLayerSubclass.h