Swiftgram/AsyncDisplayKit/Details/ASRangeControllerUpdateRangeProtocol+Beta.h

39 lines
1.4 KiB
Objective-C

//
// ASRangeControllerUpdateRangeProtocol+Beta.h
// AsyncDisplayKit
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#import <AsyncDisplayKit/ASLayoutRangeType.h>
@protocol ASRangeControllerUpdateRangeProtocol <NSObject>
/**
* Updates the current range mode of the range controller for at least the next range update
* and, if the new mode is different from the previous mode, enqueues a range update.
*/
- (void)updateCurrentRangeWithMode:(ASLayoutRangeMode)rangeMode;
/**
* Only ASLayoutRangeModeVisibleOnly or ASLayoutRangeModeLowMemory are recommended. Default is ASLayoutRangeModeVisibleOnly,
* because this is the only way to ensure an application will not have blank / flashing views as the user navigates back after
* a memory warning. Apps that wish to use the more effective / aggressive ASLayoutRangeModeLowMemory may need to take steps
* to mitigate this behavior, including: restoring a larger range mode to the next controller before the user navigates there,
* enabling .neverShowPlaceholders on ASCellNodes so that the navigation operation is blocked on redisplay completing, etc.
*/
+ (void)setRangeModeForMemoryWarnings:(ASLayoutRangeMode)rangeMode;
@end