2

AFNetworkキューを使用して2つのリクエストをダウンロードするための次のコードがあります

NSMutableArray *operations = [NSMutableArray array];
NSURLRequest *request1 = [NSURLRequest requestWithURL:URL1];
AFHTTPRequestOperation *operation1 = [[AFHTTPRequestOperation alloc] initWithRequest:request1];
operation1.outputStream = [NSOutputStream outputStreamToFileAtPath:PATH1 append:NO];

[operation1 setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
    float progress = (float)totalBytesRead / totalBytesExpectedToRead;
    NSLog(@"Progress 1 = %f",progress);
}];
[operations addObject:operation1];

NSURLRequest *request2 = [NSURLRequest requestWithURL:URL2];
AFHTTPRequestOperation *operation2 = [[AFHTTPRequestOperation alloc] initWithRequest:request2];
operation2.outputStream = [NSOutputStream outputStreamToFileAtPath:PATH2 append:NO];

[operation2 setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
    float progress = (float)totalBytesRead / totalBytesExpectedToRead;
    NSLog(@"Progress 2 = %f",progress*100);
}];
[operations addObject:operation2];

へのリクエストの追加AFTHTTPClient

AFHTTPClient *requestHandler = [[AFHTTPClient alloc] initWithBaseURL:BASEURL];

[requestHandler enqueueBatchOfHTTPRequestOperations:operations progressBlock:^(NSUInteger numberOfCompletedOperations, NSUInteger totalNumberOfOperations) {
    NSLog(@"%d completed on %d",numberOfCompletedOperations,totalNumberOfOperations);

} completionBlock:^(NSArray *operations) {
}];

問題は、リクエストごとに進行状況を個別に取得することです。しかし、両方のリクエストを組み合わせた全体としての進行状況が必要です。

4

1 に答える 1

1

これを制御するグローバル フロートを作成するだけで、すべての進行状況の合計は次のようになります。

TotalProgress = firstProgress/numOperations + secondProgress/numOperations

//Declare this like a global.
#define numOperation 2    
float globalProgress = 0.0f;



//Your Operation Instances:
NSMutableArray *operations = [NSMutableArray array];
NSURLRequest *request1 = [NSURLRequest requestWithURL:URL1];
AFHTTPRequestOperation *operation1 = [[AFHTTPRequestOperation alloc] initWithRequest:request1];
operation1.outputStream = [NSOutputStream outputStreamToFileAtPath:PATH1 append:NO];

[operation1 setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
    globalProgress += ((float)totalBytesRead / totalBytesExpectedToRead)/numOperation;
}];
[operations addObject:operation1];

NSURLRequest *request2 = [NSURLRequest requestWithURL:URL2];
AFHTTPRequestOperation *operation2 = [[AFHTTPRequestOperation alloc] initWithRequest:request2];
operation2.outputStream = [NSOutputStream outputStreamToFileAtPath:PATH2 append:NO];

[operation2 setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
    globalProgress += ((float)totalBytesRead / totalBytesExpectedToRead)/numOperation;
}];
[operations addObject:operation2];

この助けを願っています:)

于 2013-09-27T14:50:17.097 に答える