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Merge pull request #2664 from garrettmoon/enableRangeControllerMemWarning

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This patch enables memory warning support on ASRangeController by def…
This commit is contained in:
Adlai Holler
2016-11-28 11:30:50 -08:00
committed by GitHub
parent 95ffbb2358 04dc582a7a
commit a862ac230f
1 changed files with 14 additions and 10 deletions
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24
AsyncDisplayKit/Details/ASRangeController.mm
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@@ -24,6 +24,10 @@
#define AS_RANGECONTROLLER_LOG_UPDATE_FREQ 0
#ifndef ASRangeControllerAutomaticLowMemoryHandling
#define ASRangeControllerAutomaticLowMemoryHandling 1
#endif
@interface ASRangeController ()
{
BOOL _rangeIsValid;
@@ -32,7 +36,7 @@
BOOL _layoutControllerImplementsSetViewportSize;
NSSet<NSIndexPath *> *_allPreviousIndexPaths;
ASLayoutRangeMode _currentRangeMode;
BOOL _didUpdateCurrentRange;
BOOL _preserveCurrentRangeMode;
BOOL _didRegisterForNodeDisplayNotifications;
CFTimeInterval _pendingDisplayNodesTimestamp;
@@ -58,7 +62,7 @@ static UIApplicationState __ApplicationState = UIApplicationStateActive;
_rangeIsValid = YES;
_currentRangeMode = ASLayoutRangeModeInvalid;
_didUpdateCurrentRange = NO;
_preserveCurrentRangeMode = NO;
[[[self class] allRangeControllersWeakSet] addObject:self];
@@ -140,9 +144,9 @@ static UIApplicationState __ApplicationState = UIApplicationStateActive;
- (void)updateCurrentRangeWithMode:(ASLayoutRangeMode)rangeMode
{
_preserveCurrentRangeMode = YES;
if (_currentRangeMode != rangeMode) {
_currentRangeMode = rangeMode;
_didUpdateCurrentRange = YES;
[self setNeedsUpdate];
}
@@ -216,7 +220,7 @@ static UIApplicationState __ApplicationState = UIApplicationStateActive;
ASLayoutRangeMode rangeMode = _currentRangeMode;
// If the range mode is explicitly set via updateCurrentRangeWithMode: it will last in that mode until the
// range controller becomes visible again or explicitly changes the range mode again
if ((!_didUpdateCurrentRange && ASInterfaceStateIncludesVisible(selfInterfaceState)) || [[self class] isFirstRangeUpdateForRangeMode:rangeMode]) {
if ((!_preserveCurrentRangeMode && ASInterfaceStateIncludesVisible(selfInterfaceState)) || [[self class] isFirstRangeUpdateForRangeMode:rangeMode]) {
rangeMode = [ASRangeController rangeModeForInterfaceState:selfInterfaceState currentRangeMode:_currentRangeMode];
}
@@ -259,7 +263,7 @@ static UIApplicationState __ApplicationState = UIApplicationStateActive;
_allPreviousIndexPaths = allCurrentIndexPaths;
_currentRangeMode = rangeMode;
_didUpdateCurrentRange = NO;
_preserveCurrentRangeMode = NO;
if (!_rangeIsValid) {
[allIndexPaths addObjectsFromArray:ASIndexPathsForTwoDimensionalArray(allNodes)];
@@ -532,7 +536,7 @@ static UIApplicationState __ApplicationState = UIApplicationStateActive;
[center addObserver:self selector:@selector(willEnterForeground:) name:UIApplicationWillEnterForegroundNotification object:nil];
}
static ASLayoutRangeMode __rangeModeForMemoryWarnings = ASLayoutRangeModeVisibleOnly;
static ASLayoutRangeMode __rangeModeForMemoryWarnings = ASLayoutRangeModeLowMemory;
+ (void)setRangeModeForMemoryWarnings:(ASLayoutRangeMode)rangeMode
{
ASDisplayNodeAssert(rangeMode == ASLayoutRangeModeVisibleOnly || rangeMode == ASLayoutRangeModeLowMemory, @"It is highly inadvisable to engage a larger range mode when a memory warning occurs, as this will almost certainly cause app eviction");
@@ -544,8 +548,8 @@ static ASLayoutRangeMode __rangeModeForMemoryWarnings = ASLayoutRangeModeVisible
NSArray *allRangeControllers = [[self allRangeControllersWeakSet] allObjects];
for (ASRangeController *rangeController in allRangeControllers) {
BOOL isDisplay = ASInterfaceStateIncludesDisplay([rangeController interfaceState]);
[rangeController updateCurrentRangeWithMode:isDisplay ? ASLayoutRangeModeMinimum : __rangeModeForMemoryWarnings];
[rangeController setNeedsUpdate];
[rangeController updateCurrentRangeWithMode:isDisplay ? ASLayoutRangeModeVisibleOnly : __rangeModeForMemoryWarnings];
// There's no need to call needs update as updateCurrentRangeWithMode sets this if necessary.
[rangeController updateIfNeeded];
}
@@ -568,7 +572,7 @@ static ASLayoutRangeMode __rangeModeForMemoryWarnings = ASLayoutRangeModeVisible
__ApplicationState = UIApplicationStateBackground;
for (ASRangeController *rangeController in allRangeControllers) {
// Trigger a range update immediately, as we may not be allowed by the system to run the update block scheduled by changing range mode.
[rangeController setNeedsUpdate];
// There's no need to call needs update as updateCurrentRangeWithMode sets this if necessary.
[rangeController updateIfNeeded];
}
@@ -584,7 +588,7 @@ static ASLayoutRangeMode __rangeModeForMemoryWarnings = ASLayoutRangeModeVisible
for (ASRangeController *rangeController in allRangeControllers) {
BOOL isVisible = ASInterfaceStateIncludesVisible([rangeController interfaceState]);
[rangeController updateCurrentRangeWithMode:isVisible ? ASLayoutRangeModeMinimum : ASLayoutRangeModeVisibleOnly];
[rangeController setNeedsUpdate];
// There's no need to call needs update as updateCurrentRangeWithMode sets this if necessary.
[rangeController updateIfNeeded];
}