SDWebImage动画加载图片
效果
源码
https://github.com/YouXianMing/Animations
//
// PictureCell.m
// SDWebImageLoadImageAnimation
//
// Created by YouXianMing on 15/4/30.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
//
#import "PictureCell.h"
#import "UIImageView+WebCache.h"
#import "PictureModel.h"
#import "UIView+AnimationProperty.h"
@interface PictureCell ()
@property (nonatomic, strong) UIImageView *iconImageView;
@end
@implementation PictureCell
- (void)setupCell {
self.selectionStyle = UITableViewCellSelectionStyleNone;
}
- (void)buildSubview {
self.iconImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];
[self addSubview:self.iconImageView];
}
- (void)loadContent {
// 图片模型
PictureModel *model = self.data;
// 进行图片下载
SDWebImageManager *manager = [SDWebImageManager sharedManager];
// 加载图片(动画逻辑)
[manager downloadImageWithURL:model.pictureUrl options:0 progress:nil
completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
if (image) {
// 如果没有执行过动画
if (model.haveAnimated.boolValue == NO) {
// 将动画设置成已经执行了
model.haveAnimated = @(YES);
self.iconImageView.alpha = 0.f;
self.iconImageView.image = image;
self.iconImageView.scale = 2.f;
// 执行动画
[UIView animateWithDuration:0.5f animations:^{
self.iconImageView.alpha = 1.f;
self.iconImageView.scale = 1.f;
}];
} else {
// 直接设置
self.iconImageView.image = image;
self.iconImageView.scale = 1.f;
}
}
}];
}
@end细节
