157 lines
4.6 KiB
Objective-C
157 lines
4.6 KiB
Objective-C
//
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// SpriteSheetImageManager.m
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// XChat
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//
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// Created by Macx on 2018/5/11.
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// Copyright © 2018年 XC. All rights reserved.
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//
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#import "SpriteSheetImageManager.h"
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#import <SDWebImage/SDWebImageDownloader.h>
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#import <UIImageView+WebCache.h>
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#import "YYUtility.h"
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#import "XPMacro.h"
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#import "GCDHelper.h"
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static NSInteger retryCount = 3;
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static CGFloat kdeafultFrameDurations = 0.2;
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@interface SpriteSheetImageManager()
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@property (nonatomic,strong) YYSpriteSheetImage *sprite;
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@property (nonatomic,strong) NSMutableDictionary *parserQueue;
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@property (nonatomic,strong) NSMutableDictionary *retryCache;
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@property (nonatomic, strong) UIImageView *operationImageView;//
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@end
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@implementation SpriteSheetImageManager
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- (void)loadSpriteSheetImageWithURL:(NSURL *_Nullable)url
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completionBlock:(void ( ^ _Nonnull )(YYSpriteSheetImage * _Nullable sprit))completionBlock
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failureBlock:(void ( ^ _Nullable)(NSError * _Nullable error))failureBlock {
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if (!url) {
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return;
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}
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@kWeakify(self);
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NSString *key = [self cacheURL:url];
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[self.operationImageView sd_setImageWithURL:url completed:^(UIImage * _Nullable image, NSError * _Nullable error, SDImageCacheType cacheType, NSURL * _Nullable imageURL) {
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@kStrongify(self);
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if (error) {
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if (error) {
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if (![self.retryCache objectForKey:key]) {
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[self.retryCache setObject:@(0) forKey:key];
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}
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[self.retryCache setObject:@([[self.retryCache objectForKey:key] integerValue] + 1) forKey:key];
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if ([[self.retryCache objectForKey:key] integerValue] < retryCount) {
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[self retryWithKey:key completionBlock:^(YYSpriteSheetImage * _Nullable sprit) {
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completionBlock(sprit);
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} failureBlock:^(NSError * _Nullable error) {
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failureBlock(error);
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}];
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}
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}
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return ;
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}
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YYSpriteSheetImage *sheetImage = [SpriteSheetImageManager createSpriteSheet:image frameDurations:kdeafultFrameDurations];
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dispatch_main_sync_safe(^{
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if (sheetImage) {
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completionBlock(sheetImage);
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[self removeCacheWithKey:key];
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[self.retryCache removeObjectForKey:key];
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completionBlock(sheetImage);
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}
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});
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}];
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}
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- (void)retryWithKey:(NSString *)key
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completionBlock:(void (^)(YYSpriteSheetImage * _Nullable))completionBlock
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failureBlock:(void (^)(NSError * _Nullable))failureBlock {
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if (key) {
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NSURL *url = [self.parserQueue objectForKey:key];
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[self loadSpriteSheetImageWithURL:url completionBlock:^(YYSpriteSheetImage * _Nullable sprit) {
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completionBlock(sprit);
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} failureBlock:^(NSError * _Nullable error) {
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}];
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}
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}
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/**
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* 这里与UI 协定 一张横向长图 每个帧 都是通过高度 来获取 正方形
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* frameDurations 帧长
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**/
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+ (YYSpriteSheetImage *_Nullable)createSpriteSheet:(UIImage *_Nullable)image frameDurations:(CGFloat)frameDurations {
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NSMutableArray *contentRects = [NSMutableArray new];
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NSMutableArray *durations = [NSMutableArray new];
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CGFloat imageHeight = image.size.height;
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NSInteger spriteCount = image.size.width/imageHeight;
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for (int i = 0; i < spriteCount; i++) {
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CGRect rect;
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rect.size = CGSizeMake(imageHeight, imageHeight);
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rect.origin.x = imageHeight * i;
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rect.origin.y = 0;
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[contentRects addObject:[NSValue valueWithCGRect:rect]];
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if (!frameDurations) {
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frameDurations = kdeafultFrameDurations;
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}
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[durations addObject:@(frameDurations)];
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}
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YYSpriteSheetImage *sheetImage = [[YYSpriteSheetImage alloc] initWithSpriteSheetImage:image contentRects:contentRects frameDurations:durations loopCount:0];
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return sheetImage;
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}
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- (NSString *)cacheURL:(NSURL *)url {
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NSString *key = [self getUUid];
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[self.parserQueue setObject:url forKey:key];
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return key;
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}
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- (void)removeCacheWithKey:(NSString *)key {
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[self.parserQueue removeObjectForKey:key];
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}
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- (NSString *)getUUid {
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return [UIDevice currentDevice].identifierForVendor.UUIDString;
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}
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- (NSMutableDictionary *)parserQueue {
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if (_parserQueue == nil) {
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_parserQueue = [NSMutableDictionary dictionary];
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}
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return _parserQueue;
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}
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- (NSMutableDictionary *)retryCache {
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if (_retryCache == nil) {
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_retryCache = [NSMutableDictionary dictionary];
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}
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return _retryCache;
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}
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- (UIImageView *)operationImageView {
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if (!_operationImageView) {
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_operationImageView = [[UIImageView alloc] init];
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}
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return _operationImageView;
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}
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@end
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