iphone - 将图像上传到我的服务器时显示进度条

Question

我的应用程序将图像上传到我的服务器。我想通过进度条显示此事件。

- (void)connection:(NSURLConnection *)connection didSendBodyData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

- (void)connectionDidFinishLoading:(NSURLConnection *)connection

我使用上述方法来查看控制台中的进度。但是我如何使用“进度条”在 nib 文件中做到这一点？

Answer 1

如果您使用 UIProgressView ，您可以在连接中设置进度：didSendBodyData:totalBytesWritten:totalBytesExpectedToWrite: 方法如下：

float progress = [[NSNumber numberWithInteger:totalBytesWritten] floatValue];
float total = [[NSNumber numberWithInteger: totalBytesExpectedToWrite] floatValue];
progressView.progress = progress/total;