我的进度指示器在 cocoa webview 中不起作用我使用了此代码 -
-(void)download:(NSURLDownload *)download didReceiveResponse:(NSURLResponse *)response {
NSLog(@"downl didreceiveresponse here");
NSLog(@"Recieved reponse with expected length: %lli", [response expectedContentLength]);
payload=0;
[payload setLength:0];
[progrssbar setMaxValue:[response expectedContentLength]] ;
[self setProgrssbar:progrssbar];
}
- (void)connection:(NSURLConnection *)conn didReceiveData:(NSData *)data
{
NSLog(@"Recieving data. Incoming Size: %li Total Size: %li", (unsigned long)[data length], (unsigned long)[payload length]);
[payload appendData:data];
[progrssbar setDoubleValue:[payload length]];
}
- (void)download:(NSURLDownload *)download didReceiveDataOfLength:(unsigned)length
{
NSLog(@"downl receivedata here%i",length);
[progrssbar setHidden:NO];
[progrssbar setIndeterminate:NO];
[progrssbar startAnimation:self];
[progrssbar setDoubleValue:(double)length]; [progrssbar displayIfNeeded];
}
最佳答案
有效负载到底声明为什么？我使用了类似的代码，声明了 NSMutableData *payload ，然后在 -(void)download:(NSURLDownload *)download didReceiveResponse:(NSURLResponse *)response 中使用了 payload=[NSMutableData data] 而不是您的 payload=0，也许这就是问题所在？
关于cocoa - 在 cocoa Web View 中进行 nsurldownload 后，nsprogressindicor 进度未完全完成，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16167200/