mirror of
https://github.com/Tencent/Hippy.git
synced 2026-10-24 02:04:23 +08:00
mengyanluo
100 lines
3.0 KiB
Objective-C
100 lines
3.0 KiB
Objective-C
/*!
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* iOS SDK
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*
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* Tencent is pleased to support the open source community by making
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* Hippy available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company.
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "HippyImageCacheManager.h"
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#import "HippyLog.h"
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#import <pthread.h>
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@interface HippyImageCacheManager() {
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NSCache *_cache;
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}
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@end
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@implementation HippyImageCacheManager
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+ (instancetype) sharedInstance {
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static dispatch_once_t onceToken;
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static HippyImageCacheManager *instance;
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dispatch_once(&onceToken, ^{
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instance = [[[self class] alloc] init];
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});
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return instance;
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}
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- (instancetype) init {
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self = [super init];
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if (self) {
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_cache = [[NSCache alloc] init];
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_cache.totalCostLimit = 10 * 1024 * 1024;
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_cache.name = @"com.tencent.HippyImageCache";
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}
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return self;
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}
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- (void) setImageCacheData:(NSData *)data forURLString:(NSString *)URLString {
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if (URLString && data) {
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[_cache setObject:data forKey:URLString cost:[data length]];
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}
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}
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- (NSData *) imageCacheDataForURLString:(NSString *)URLString {
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NSData *data = nil;
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if (URLString) {
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data = [_cache objectForKey:URLString];
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}
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return data;
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}
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- (void) setImage:(UIImage *)image forURLString:(NSString *)URLString blurRadius:(CGFloat)radius {
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if (URLString && image) {
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NSString *key = [URLString stringByAppendingFormat:@"%.1f", radius];
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[_cache setObject:image forKey:key cost:image.size.width * image.size.height * image.scale * image.scale];
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}
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}
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- (UIImage *) imageForURLString:(NSString *)URLString blurRadius:(CGFloat)radius {
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UIImage *retImage = nil;
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if (URLString && [URLString isKindOfClass:[NSString class]]) {
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NSString *key = [URLString stringByAppendingFormat:@"%.1f", radius];
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retImage = [_cache objectForKey:key];
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}
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return retImage;
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}
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@end
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@implementation HippyImageCacheManager (ImageLoader)
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- (UIImage *)loadImageFromCacheForURLString:(NSString *)URLString radius:(CGFloat)radius isBlurredImage:(BOOL *)isBlurredImage{
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if (isBlurredImage) {
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*isBlurredImage = NO;
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}
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UIImage *image = [self imageForURLString:URLString blurRadius:radius];
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if (nil == image) {
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NSData *data = [self imageCacheDataForURLString:URLString];
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if (data) {
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image = [UIImage imageWithData:data];
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}
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}
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else if (radius > __FLT_EPSILON__ && isBlurredImage) {
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*isBlurredImage = YES;
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}
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return image;
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}
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@end
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