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• 上一篇已实现多张图片的发送
• 接下来实现传输进度的回调
• 实现单个及多个视频的发送,视频的传输跟图片传输策略是一样的 只是获取视频流比图片多几部操作而已

一.传输进度回调 新建 HJProgressHub 类,在ChatMessageCell 根据状态显示隐藏

#import "HJProgressHub.h"

@interface HJProgressHub()
/// 菊花
@property (nonatomic, strong) UIActivityIndicatorView *indicatorView;
/// 灰色的板子
@property (nonatomic, strong) UIView *grayView;
/// 进度label
@property (nonatomic, strong) UILabel *progressLabel;
@end

SocketManager 代理回调中 取出当前cell赋值操作

#pragma mark - SocketManagerDelegate
- (void)socketManager:(SocketManager *)manager  itemUpingrefresh:(ChatMessageModel *)upingItem{
    // 刷新当前进度
    ChatMessageCell *cell = [self.tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:upingItem.locationIndex inSection:0]];
    cell.progressHub.progress = 1.0 * upingItem.upSize / upingItem.fileSize;
}

二.视频资源的获取 同样是由 ESKeyboardToolView 触发

- (void)sendImageOrVideo{
    WS(weakSelf);
    [[PickerImageVideoTool sharePickerImageVideoTool] showImagePickerWithMaxCount:9 completion:^(NSArray<UIImage *> *photos, NSArray *assets) {
        NSInteger count = assets.count;
        id objc = nil;
        for (NSInteger i = 0; i < count; i++) {
            objc = assets[i];
            if (![objc isKindOfClass:[PHAsset class]]) {
                continue;
            }
            PHAsset *asset = (PHAsset *)objc;
            ChatMessageModel *messageM = [ChatMessageModel new];
            messageM.isFormMe = YES;
            messageM.userName = [UIDevice currentDevice].name;
            messageM.asset = asset;
            messageM.fileName = [ZPPublicMethod getAssetsName:asset only:YES];
            if (asset.mediaType == PHAssetMediaTypeImage){
                messageM.temImage = photos[i];
                [weakSelf pickImageHandle:messageM];
            }else if (asset.mediaType == PHAssetMediaTypeVideo) {
                messageM.chatMessageType = ChatMessageVideo;
                [weakSelf pickVideoHandle:messageM];
            }else if (asset.mediaType == PHAssetMediaTypeAudio){
                messageM.chatMessageType = ChatMessageAudio;
            }   
        }
    }];
}
// 获取图片的操作
- (void)pickImageHandle:(ChatMessageModel*)messageM{
    messageM.chatMessageType = ChatMessageImage;
    messageM.fileSize = UIImagePNGRepresentation(messageM.temImage).length;
    SDImageCache *cache = [SDImageCache sharedImageCache];
    [cache storeImage:messageM.temImage forKey:messageM.fileName toDisk:YES completion:^{
        messageM.showImageUrl = [NSURL fileURLWithPath:[cache defaultCachePathForKey:messageM.fileName]];
        NSLog(@"imgMessageUrl = %@",messageM.mediaMessageUrl);
    }];
    [self sendMessageWithItem:messageM];
}

获取视频的操作

- (void)pickVideoHandle:(ChatMessageModel *)messageM{
    // 视频getPhotoWithAsset
     [ZPPublicMethod getfilePath:messageM.asset Complete:^(NSURL *fileUrl) {
         messageM.fileSize = [ZPPublicMethod getFileSize:[[fileUrl absoluteString] substringFromIndex:8]];
         [ZPPublicMethod getThumbnail:messageM.asset size:CGSizeMake(375, 667) result:^(UIImage *thumImage) {
             if (messageM.temImage == nil) {
                 messageM.temImage = thumImage;
                 SDImageCache *cache = [SDImageCache sharedImageCache];
                 NSString *keyStr = [messageM.fileName stringByAppendingString:@".JPG"];
                 [cache storeImage:messageM.temImage forKey:keyStr toDisk:YES completion:^{
                     messageM.showImageUrl = [NSURL fileURLWithPath:[cache defaultCachePathForKey:keyStr]];
                 }];
                 [self sendMessageWithItem:messageM];
             }
         }];
     }];
}

通过PHAsset 获取资源URL地址方法实现

/// 通 PHAsset 获取文件url
+ (void)getfilePath:(PHAsset *)asset  Complete:(void(^)(NSURL *fileUrl))result{
    if (asset.mediaType == PHAssetMediaTypeVideo) {
        PHVideoRequestOptions *videoOption = [[PHVideoRequestOptions alloc] init];
        videoOption.version = PHVideoRequestOptionsVersionOriginal;
        [[PHImageManager defaultManager] requestAVAssetForVideo:asset options:videoOption resultHandler:^(AVAsset * _Nullable videoAsset, AVAudioMix * _Nullable audioMix, NSDictionary * _Nullable info) {
            AVURLAsset *urlAsset = (AVURLAsset *)videoAsset;
            result(urlAsset.URL);
        }];
    }else if (asset.mediaType == PHAssetMediaTypeImage){
        // 获取图片资源路径
        PHContentEditingInputRequestOptions *reqOption = [[PHContentEditingInputRequestOptions alloc] init];
        reqOption.canHandleAdjustmentData = ^(PHAdjustmentData * _Nonnull adjustmentData) {
            return YES;
        };
        [asset requestContentEditingInputWithOptions:reqOption completionHandler:^(PHContentEditingInput * _Nullable contentEditingInput, NSDictionary * _Nonnull info) {
            result(contentEditingInput.fullSizeImageURL);
        }];
    }
}

通过PHAsset 获取资源缩略图

+ (void)getThumbnail:(PHAsset *)asset size:(CGSize)size result:(void(^)(UIImage *thumImage))result{
    PHImageRequestOptions *options = [[PHImageRequestOptions alloc] init];
    options.version = PHImageRequestOptionsVersionCurrent;
    [[PHImageManager defaultManager] requestImageForAsset:asset
                                               targetSize:size
                                              contentMode:PHImageContentModeAspectFill
                                                  options:nil
                                            resultHandler:^(UIImage *image, NSDictionary *info) {
                                                dispatch_async(dispatch_get_main_queue(), ^{
                                                    if (result) {
                                                        result(image);
                                                    }
                                                });
                                            }];
}

SocketManager 中只需把昨天预留处理视频的地方写下就OK

// 图片或者视频文件传输
- (void)imageOrVideoFileSend:(ChatMessageModel *)sendItem{
    if (sendItem.chatMessageType == ChatMessageImage) {
        NSData *sendData = UIImagePNGRepresentation(sendItem.temImage);
        [self writeMediaMessageWithData:sendData];
    }else if (sendItem.chatMessageType == ChatMessageVideo){
        PHAsset *asset = (PHAsset *)sendItem.asset;
        [ZPPublicMethod getfilePath:asset Complete:^(NSURL *fileUrl) {
            dispatch_sync(dispatch_get_main_queue(), ^{
                sendItem.mediaMessageUrl = fileUrl;
                NSData *sendData = [NSData dataWithContentsOfURL:sendItem.mediaMessageUrl options:NSDataReadingMappedIfSafe error:nil];
                [self writeMediaMessageWithData:sendData];
            });
        }];
    }
}