源鏈接：https://viktyz.gitbooks.io/iosnotebook-gitbook/Notes/Note_00144_20160301.html

方案名稱

Xcode - 使用 DWURecyclingAlert 進行 UITableView 和 UICollectionView 的繪圖性能測試

關鍵字

Xcode \ DWURecyclingAlert \ UITableView \ UICollectionView \ 繪圖性能測試

需求場景

需要對 UITableView 和 UICollectionView 的繪圖進行性能測試時

參考鏈接

GitHub - DWURecyclingAlert

詳細內容

使用方法

在工程中添加?DWURecyclingAlert.m?文件即可

Objective-C

//DWURecyclingAlert.m //Copyright (c) 2015 Di Wu // //Permission is hereby granted, free of charge, to any person obtaining a copy //of this software and associated documentation files (the "Software"), to deal //in the Software without restriction, including without limitation the rights //to use, copy, modify, merge, publish, distribute, sublicense, and/or sell //copies of the Software, and to permit persons to whom the Software is //furnished to do so, subject to the following conditions: // //The above copyright notice and this permission notice shall be included in //all copies or substantial portions of the Software. // //THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR //IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, //FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE //AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER //LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, //OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN //THE SOFTWARE.// Comment out if you want to disable this entire runtime hack #define DWURecyclingAlertEnabled#if defined (DEBUG) && defined (DWURecyclingAlertEnabled)#import <Foundation/Foundation.h> #import <objc/runtime.h> #import <objc/message.h> #import <UIKit/UITableViewCell.h> #import <UIKit/UIImage.h> #import <UIKit/UITableView.h> #import <UIKit/UILabel.h> #import <QuartzCore/CALayer.h> #import <UIKit/UINibLoading.h> #import <UIKit/UICollectionViewCell.h> #import <UIKit/UICollectionView.h> #import <UIKit/UITableViewHeaderFooterView.h>// ------------ UI Configuration ------------ static const CGFloat DWU_BORDER_WIDTH = 5.0;static const CGFloat DWU_LABEL_HEIGHT = 16.0;static const CGFloat DWU_LABEL_WIDTH_UITABLEVIEW_CELL = 240.0;static const CGFloat DWU_LABEL_WIDTH_UICOLLECTIONVIEW_CELL = 50.0;static const CGFloat DWU_LABEL_FONT_SIZE = 12.0;static NSString *DWU_LABEL_FORMAT_UITABLEVIEW_CELL = @"cellForRow: %zd ms, drawRect: %zd ms";static NSString *DWU_LABEL_FORMAT_UITABLEVIEW_HEADER = @"viewForHeader: %zd ms, drawRect: %zd ms";static NSString *DWU_LABEL_FORMAT_UITABLEVIEW_FOOTER = @"viewForFooter: %zd ms, drawRect: %zd ms";static NSString *DWU_LABEL_FORMAT_UICOLLECTIONVIEW_CELL = @" %zd / %zd";#define DWU_BORDER_COLOR [[UIColor redColor] CGColor]#define DWU_TEXT_LABEL_BACKGROUND_COLOR [UIColor blackColor]#define DWU_TEXT_LABEL_FONT_COLOR [UIColor whiteColor] // ------------------------------------------static const NSInteger DWU_TIME_INTERVAL_LABEL_TAG = NSIntegerMax - 123;static char DWU_CALAYER_ASSOCIATED_OBJECT_KEY;static char DWU_UIVIEW_TABLEVIEW_CELL_DELEGATE_ASSOCIATED_OBJECT_KEY;static char DWU_UIVIEW_DRAW_RECT_TIME_COUNT_NUMBER_ASSOCIATED_OBJECT_KEY;static char DWU_UIVIEW_CELL_FOR_ROW_TIME_COUNT_NUMBER_ASSOCIATED_OBJECT_KEY;typedef id(^CellForRowAtIndexPathBlock)(__unsafe_unretained id _self, __unsafe_unretained id arg1, __unsafe_unretained id arg2);typedef id(^CollectionHeaderFooterBlock)(__unsafe_unretained id _self, __unsafe_unretained id arg1, __unsafe_unretained id arg2, __unsafe_unretained id arg3);#pragma mark - swizzling method from block// http://www.mikeash.com/pyblog/friday-qa-2010-01-29-method-replacement-for-fun-and-profit.html static BOOL dwu_replaceMethodWithBlock(Class c, SEL origSEL, SEL newSEL, id block) {if ([c instancesRespondToSelector:newSEL]) {return YES;}Method origMethod = class_getInstanceMethod(c, origSEL);IMP impl = imp_implementationWithBlock(block);if (!class_addMethod(c, newSEL, impl, method_getTypeEncoding(origMethod))) {return NO;}else {Method newMethod = class_getInstanceMethod(c, newSEL);if (class_addMethod(c, origSEL, method_getImplementation(newMethod), method_getTypeEncoding(origMethod))) {class_replaceMethod(c, newSEL, method_getImplementation(origMethod), method_getTypeEncoding(newMethod));}else {method_exchangeImplementations(origMethod, newMethod);}}return YES; }#pragma mark - time count label@interface DWUKVOLabel : UILabel// Known issue: *strong* will lead to retain cycle. // (While *weak* will lead to a NSKVODeallocate exception.) // Will adopt something like FBKVOController in the future. @property (nonatomic, strong) UIView *observedView;@property (nonatomic, assign) NSInteger cellForRowTimeInteger;@property (nonatomic, assign) NSInteger drawRectTimeInteger;@property (nonatomic, copy) NSString *format;- (instancetype)initWithKVOTarget: (UIView *)view frame: (CGRect)frame;@end@implementation DWUKVOLabel- (instancetype)initWithKVOTarget: (UIView *)view frame: (CGRect)frame {if ((self = [super initWithFrame:frame])) {_observedView = view;_cellForRowTimeInteger = 0;_drawRectTimeInteger = 0;[view addObserver:self forKeyPath:@"dwuCellForRowTimeCountNumber" options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionInitial context:nil];[view addObserver:self forKeyPath:@"dwuDrawRectTimeCountNumber" options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionInitial context:nil];}return self; }- (void)observeValueForKeyPath:(NSString *)keyPathofObject:(id)objectchange:(NSDictionary *)changecontext:(void *)context {NSNumber *number = [change objectForKey:NSKeyValueChangeNewKey];if (!number || ![number isKindOfClass:[NSNumber class]]) {return;}if ([keyPath isEqualToString:@"dwuCellForRowTimeCountNumber"]) {self.cellForRowTimeInteger = [number integerValue];} else if ([keyPath isEqualToString:@"dwuDrawRectTimeCountNumber"]) {self.drawRectTimeInteger += [number integerValue];}[self updateText]; }- (void)updateText {self.text = [NSString stringWithFormat:self.format, self.cellForRowTimeInteger, self.drawRectTimeInteger]; }- (void)dealloc {[self.observedView removeObserver:self forKeyPath:@"dwuCellForRowTimeCountNumber"];[self.observedView removeObserver:self forKeyPath:@"dwuDrawRectTimeCountNumber"]; }@end#pragma mark - Category@interface UIView (DWURecyclingAlert)@property (nonatomic, unsafe_unretained) UIView *dwuCellDelegate;@property (nonatomic, strong) NSNumber *dwuDrawRectTimeCountNumber;@property (nonatomic, strong) NSNumber *dwuCellForRowTimeCountNumber;@end@implementation UIView (DWURecyclingAlert)- (void)setDwuCellDelegate:(UIView *)delegate {objc_setAssociatedObject(self, &DWU_UIVIEW_TABLEVIEW_CELL_DELEGATE_ASSOCIATED_OBJECT_KEY, delegate, OBJC_ASSOCIATION_ASSIGN); }- (UIView *)dwuCellDelegate {UITableViewCell *delegate = objc_getAssociatedObject(self, &DWU_UIVIEW_TABLEVIEW_CELL_DELEGATE_ASSOCIATED_OBJECT_KEY);return delegate; }- (void)setDwuDrawRectTimeCountNumber: (NSNumber *)number {objc_setAssociatedObject(self, &DWU_UIVIEW_DRAW_RECT_TIME_COUNT_NUMBER_ASSOCIATED_OBJECT_KEY, number, OBJC_ASSOCIATION_RETAIN_NONATOMIC); }- (NSNumber *)dwuDrawRectTimeCountNumber {NSNumber *number = objc_getAssociatedObject(self, &DWU_UIVIEW_DRAW_RECT_TIME_COUNT_NUMBER_ASSOCIATED_OBJECT_KEY);return number; }- (void)setDwuCellForRowTimeCountNumber: (NSNumber *)number {objc_setAssociatedObject(self, &DWU_UIVIEW_CELL_FOR_ROW_TIME_COUNT_NUMBER_ASSOCIATED_OBJECT_KEY, number, OBJC_ASSOCIATION_RETAIN_NONATOMIC); }- (NSNumber *)dwuCellForRowTimeCountNumber {NSNumber *number = objc_getAssociatedObject(self, &DWU_UIVIEW_CELL_FOR_ROW_TIME_COUNT_NUMBER_ASSOCIATED_OBJECT_KEY);return number; }@end@interface CALayer (DWURecyclingAlert)@property (nonatomic, assign) NSInteger dwuRecyclingCount;@end@implementation CALayer (DWURecyclingAlert)- (void)setDwuRecyclingCount:(NSInteger)recyclingCount {objc_setAssociatedObject(self, &DWU_CALAYER_ASSOCIATED_OBJECT_KEY, @(recyclingCount), OBJC_ASSOCIATION_RETAIN_NONATOMIC); }- (NSInteger)dwuRecyclingCount {NSNumber *recyclingCountNumber = objc_getAssociatedObject(self, &DWU_CALAYER_ASSOCIATED_OBJECT_KEY);return [recyclingCountNumber integerValue]; }- (void)dwu_addRedBorderEffect {self.borderColor = DWU_BORDER_COLOR;self.borderWidth = DWU_BORDER_WIDTH; }- (void)dwu_removeRedBorderEffect {self.borderColor = [[UIColor clearColor] CGColor];self.borderWidth = 0.0; }static BOOL dwu_implementsSelector(id obj, SEL sel) {if ([[obj class] instanceMethodForSelector:sel] != [[obj superclass] instanceMethodForSelector:sel]) {return YES;} else {return NO;} }static void dwu_swizzleDrawRectIfNotYet(CALayer *layer) {if (!layer.delegate) {return;}if (![layer.delegate isKindOfClass:[UIView class]]) {return;}UIView *containerView = layer.delegate;if (!dwu_implementsSelector(containerView, @selector(drawRect:))) {return;}Class c = containerView.class;if ([NSStringFromClass(c) hasPrefix:@"UI"]) {return;}static NSMutableSet *classSet;if (!classSet) {classSet = [NSMutableSet set];}if ([classSet containsObject:c]) {return;}[classSet addObject:c];SEL selector = @selector(drawRect:);NSString *selStr = NSStringFromSelector(selector);SEL newSelector = NSSelectorFromString([NSString stringWithFormat:@"dwu_%@", selStr]);dwu_replaceMethodWithBlock(c, selector, newSelector, ^(__unsafe_unretained UIView *containerView, CGRect rect) {NSDate *date = [NSDate date];containerView.opaque = NO;((void ( *)(id, SEL, CGRect))objc_msgSend)(containerView, newSelector, rect);NSTimeInterval timeInterval = ceilf(-[date timeIntervalSinceNow] * 1000);containerView.dwuCellDelegate.dwuDrawRectTimeCountNumber = @(timeInterval);}); }- (void)dwu_scanLayerHierarchyRecursively {dwu_swizzleDrawRectIfNotYet(self);static NSMapTable *cgImageRefDict;if (!cgImageRefDict) {cgImageRefDict = [NSMapTable mapTableWithKeyOptions:NSMapTableCopyInvalueOptions:NSMapTableWeakMemory];}NSInteger recyclingCount = self.dwuRecyclingCount;SEL imageSelector = @selector(image);BOOL viewTargetFound = NO;BOOL imageTargetFound = NO;if ( self.delegate && [self.delegate respondsToSelector:imageSelector]) {UIImage *image = ((UIImage * ( *)(id, SEL))objc_msgSend)(self.delegate, imageSelector);if (image) {NSString *addressString = [NSString stringWithFormat:@"%p", image.CGImage];if (![cgImageRefDict objectForKey:addressString]) {[cgImageRefDict setObject:self.delegate forKey:addressString];imageTargetFound = YES;} else {UIView *someLastMarkedView = [cgImageRefDict objectForKey:addressString];[someLastMarkedView.layer dwu_removeRedBorderEffect];}}} else if (!recyclingCount && self.superlayer && self.superlayer.dwuRecyclingCount) {viewTargetFound = YES;}if (viewTargetFound || imageTargetFound) {[self dwu_addRedBorderEffect];} else {[self dwu_removeRedBorderEffect];}UIView *cellDelegate = [self dwu_findCell];[self dwu_injectLayer:cellDelegate.layer withCellDelegate:cellDelegate];for (CALayer *sublayer in self.sublayers) {[self dwu_injectLayer:sublayer withCellDelegate:cellDelegate];[sublayer dwu_scanLayerHierarchyRecursively];}self.dwuRecyclingCount++; }- (UIView *)dwu_findCell {UIView *containerView = self.delegate;if (!containerView) {return nil;}if (![containerView isKindOfClass:[UIView class]]) {return nil;}if (containerView.dwuCellDelegate) {return containerView.dwuCellDelegate;} else if ([containerView isKindOfClass:[UITableViewCell class]]) {return containerView;} else if ([containerView isKindOfClass:[UITableViewHeaderFooterView class]]) {return containerView;} else if ([containerView isKindOfClass:[UICollectionReusableView class]]) {return containerView;} else {return nil;} }- (void)dwu_injectLayer: (CALayer *)layer withCellDelegate:(UIView *)cellDelegate {if (layer.delegate && [layer.delegate isKindOfClass:[UIView class]]) {UIView *containerView = layer.delegate;containerView.dwuCellDelegate = cellDelegate;} }@end#pragma mark - generate for UITableViewCell / UICollectionViewCell labelsstatic CellForRowAtIndexPathBlock dwu_generateTimeLabel(SEL targetSelector, CGFloat labelWidth, NSString *timeStringFormat) {return ^(__unsafe_unretained UITableView *_self, __unsafe_unretained id arg1, __unsafe_unretained id arg2) {NSDate *date = [NSDate date];UIView *returnView = ((UIView * ( *)(id, SEL, id, id))objc_msgSend)(_self, targetSelector, arg1, arg2);NSTimeInterval timeInterval = ceilf(-[date timeIntervalSinceNow] * 1000);[[returnView layer] dwu_scanLayerHierarchyRecursively];DWUKVOLabel *timeIntervalLabel = (DWUKVOLabel *)[returnView viewWithTag:DWU_TIME_INTERVAL_LABEL_TAG];if (!timeIntervalLabel) {timeIntervalLabel = [[DWUKVOLabel alloc] initWithKVOTarget:returnView frame:CGRectMake(0, 0, labelWidth, DWU_LABEL_HEIGHT)];timeIntervalLabel.userInteractionEnabled = NO;timeIntervalLabel.backgroundColor = DWU_TEXT_LABEL_BACKGROUND_COLOR;timeIntervalLabel.textColor = DWU_TEXT_LABEL_FONT_COLOR;timeIntervalLabel.font = [UIFont boldSystemFontOfSize:DWU_LABEL_FONT_SIZE];timeIntervalLabel.textAlignment = NSTextAlignmentCenter;timeIntervalLabel.adjustsFontSizeToFitWidth = YES;timeIntervalLabel.tag = DWU_TIME_INTERVAL_LABEL_TAG;timeIntervalLabel.layer.dwuRecyclingCount++;[returnView addSubview:timeIntervalLabel];}timeIntervalLabel.format = timeStringFormat;timeIntervalLabel.cellForRowTimeInteger = 0;timeIntervalLabel.drawRectTimeInteger = 0;[returnView bringSubviewToFront:timeIntervalLabel];returnView.dwuCellForRowTimeCountNumber = @(timeInterval);return returnView;}; }static CollectionHeaderFooterBlock dwu_generateCollectionViewHeaderFooterTimeLabel(SEL targetSelector, CGFloat labelWidth, NSString *timeStringFormat) {return ^(__unsafe_unretained id _self, __unsafe_unretained id arg1, __unsafe_unretained id arg2, __unsafe_unretained id arg3) {NSDate *date = [NSDate date];UIView *returnView = ((UIView * ( *)(id, SEL, id, id, id))objc_msgSend)(_self, targetSelector, arg1, arg2, arg3);NSTimeInterval timeInterval = ceilf(-[date timeIntervalSinceNow] * 1000);[[returnView layer] dwu_scanLayerHierarchyRecursively];DWUKVOLabel *timeIntervalLabel = (DWUKVOLabel *)[returnView viewWithTag:DWU_TIME_INTERVAL_LABEL_TAG];if (!timeIntervalLabel) {timeIntervalLabel = [[DWUKVOLabel alloc] initWithKVOTarget:returnView frame:CGRectMake(0, 0, labelWidth, DWU_LABEL_HEIGHT)];timeIntervalLabel.userInteractionEnabled = NO;timeIntervalLabel.backgroundColor = DWU_TEXT_LABEL_BACKGROUND_COLOR;timeIntervalLabel.textColor = DWU_TEXT_LABEL_FONT_COLOR;timeIntervalLabel.font = [UIFont boldSystemFontOfSize:DWU_LABEL_FONT_SIZE];timeIntervalLabel.textAlignment = NSTextAlignmentCenter;timeIntervalLabel.adjustsFontSizeToFitWidth = YES;timeIntervalLabel.tag = DWU_TIME_INTERVAL_LABEL_TAG;timeIntervalLabel.layer.dwuRecyclingCount++;[returnView addSubview:timeIntervalLabel];}timeIntervalLabel.format = timeStringFormat;timeIntervalLabel.cellForRowTimeInteger = 0;timeIntervalLabel.drawRectTimeInteger = 0;[returnView bringSubviewToFront:timeIntervalLabel];returnView.dwuCellForRowTimeCountNumber = @(timeInterval);return returnView;}; }static void dwu_generateTimeLabelForUITableViewHeaderFooterView() {SEL selector = @selector(setDelegate:);NSString *selStr = NSStringFromSelector(selector);SEL newSelector = NSSelectorFromString([NSString stringWithFormat:@"dwu_uitableview_headerfooter_%@", selStr]);dwu_replaceMethodWithBlock(UITableView.class, selector, newSelector, ^(__unsafe_unretained UITableView *_self, __unsafe_unretained id arg) {SEL viewForHeaderInSectionSel = @selector(tableView:viewForHeaderInSection:);if ([arg respondsToSelector:viewForHeaderInSectionSel]) {NSString *viewForSectionSelSelStr = NSStringFromSelector(viewForHeaderInSectionSel);SEL newViewForSectionSel = NSSelectorFromString([NSString stringWithFormat:@"dwu_%@", viewForSectionSelSelStr]);dwu_replaceMethodWithBlock([arg class], viewForHeaderInSectionSel, newViewForSectionSel, dwu_generateTimeLabel(newViewForSectionSel, DWU_LABEL_WIDTH_UITABLEVIEW_CELL, DWU_LABEL_FORMAT_UITABLEVIEW_HEADER));}SEL viewForFooterInSectionSel = @selector(tableView:viewForFooterInSection:);if ([arg respondsToSelector:viewForFooterInSectionSel]) {NSString *viewForSectionSelSelStr = NSStringFromSelector(viewForFooterInSectionSel);SEL newViewForSectionSel = NSSelectorFromString([NSString stringWithFormat:@"dwu_%@", viewForSectionSelSelStr]);dwu_replaceMethodWithBlock([arg class], viewForFooterInSectionSel, newViewForSectionSel, dwu_generateTimeLabel(newViewForSectionSel, DWU_LABEL_WIDTH_UITABLEVIEW_CELL, DWU_LABEL_FORMAT_UITABLEVIEW_FOOTER));}((void ( *)(id, SEL, id))objc_msgSend)(_self, newSelector, arg);}); }static void dwu_generateTimeLabelForUITableViewCell() {SEL selector = @selector(setDataSource:);NSString *selStr = NSStringFromSelector(selector);SEL newSelector = NSSelectorFromString([NSString stringWithFormat:@"dwu_uitableview_%@", selStr]);dwu_replaceMethodWithBlock(UITableView.class, selector, newSelector, ^(__unsafe_unretained UITableView *_self, __unsafe_unretained id arg) {SEL cellForRowSel = @selector(tableView:cellForRowAtIndexPath:);NSString *cellForRowSelStr = NSStringFromSelector(cellForRowSel);SEL newCellForRowSel = NSSelectorFromString([NSString stringWithFormat:@"dwu_%@", cellForRowSelStr]);dwu_replaceMethodWithBlock([arg class], cellForRowSel, newCellForRowSel, dwu_generateTimeLabel(newCellForRowSel, DWU_LABEL_WIDTH_UITABLEVIEW_CELL, DWU_LABEL_FORMAT_UITABLEVIEW_CELL));((void ( *)(id, SEL, id))objc_msgSend)(_self, newSelector, arg);}); }static void dwu_generateTimeLabelForUICollectionViewCell() {SEL selector = @selector(setDataSource:);NSString *selStr = NSStringFromSelector(selector);SEL newSelector = NSSelectorFromString([NSString stringWithFormat:@"dwu_uicollectionview_%@", selStr]);dwu_replaceMethodWithBlock(UICollectionView.class, selector, newSelector, ^(__unsafe_unretained UICollectionView *_self, __unsafe_unretained id arg) {SEL cellForItemSel = @selector(collectionView:cellForItemAtIndexPath:);NSString *cellForItemSelStr = NSStringFromSelector(cellForItemSel);SEL newCellForItemSel = NSSelectorFromString([NSString stringWithFormat:@"dwu_%@", cellForItemSelStr]);dwu_replaceMethodWithBlock([arg class], cellForItemSel, newCellForItemSel, dwu_generateTimeLabel(newCellForItemSel, DWU_LABEL_WIDTH_UICOLLECTIONVIEW_CELL, DWU_LABEL_FORMAT_UICOLLECTIONVIEW_CELL));cellForItemSel = @selector(collectionView:viewForSupplementaryElementOfKind:atIndexPath:);if ([arg respondsToSelector:cellForItemSel]) {cellForItemSelStr = NSStringFromSelector(cellForItemSel);newCellForItemSel = NSSelectorFromString([NSString stringWithFormat:@"dwu_%@", cellForItemSelStr]);dwu_replaceMethodWithBlock([arg class], cellForItemSel, newCellForItemSel, dwu_generateCollectionViewHeaderFooterTimeLabel(newCellForItemSel, DWU_LABEL_WIDTH_UICOLLECTIONVIEW_CELL, DWU_LABEL_FORMAT_UICOLLECTIONVIEW_CELL));}((void ( *)(id, SEL, id))objc_msgSend)(_self, newSelector, arg);}); }__attribute__((constructor)) static void DWURecyclingAlert(void) {@autoreleasepool {dwu_generateTimeLabelForUITableViewCell();dwu_generateTimeLabelForUITableViewHeaderFooterView();dwu_generateTimeLabelForUICollectionViewCell();} } #endif

效果圖

備注

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