我真的坚持这个。我们有一个 IAP，其中列表视图是我们自己的，我们直接指向 UADetailView 进行购买。正因为如此，我们没有进度条来告诉用户下载进展如何，而且我们的下载量很大。我以为我可以使用 MBProgressHud，但我遇到了问题。我似乎无法将 UA 的进度传递给 HUD。如果我使用一个简单的计数器来计时，HUD 一切正常。就像他们自己的样本一样。
这是HUD调用；
- (void)showWithLabelDeterminate {
HUD = [[MBProgressHUD alloc] initWithView:self.view.window];
[self.view.window addSubview:HUD];
// Set determinate mode
HUD.mode = MBProgressHUDModeDeterminate;
HUD.delegate =self;
HUD.labelText = NSLocalizedString(@"DownLoading","");
// myProgressTask uses the HUD instance to update progress
[HUD showWhileExecuting:@selector(refreshProgress) onTarget:self withObject:nil animated:YES];
}
以及我尝试使用的刷新；
- (void)refreshProgress:(float)progress {
while (progress < 1.0f)
NSLog(@"++ progress for HUD: %f", progress);
HUD.progress = progress;
}
但是，当我运行它时，应用程序会因此日志而崩溃...
2012-01-30 12:23:18.838 isengua-en[12730:3827]-[UAProductDetailViewController refreshProgress]：无法识别的选择器发送到实例 0x3e2c10 2012-01-30 12:23:18.840 isengua-en[12730:3827] * 终止app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UAProductDetailViewController refreshProgress]: unrecognized selector sent to instance 0x3e2c10' * First throw call stack: (0x30caa8bf 0x37e4f1e5 0x30cadacb 0x30cac945 0x30c07680 0x30c0922b 0xf4e59 0x37cbca91 0x37d505a1 0x36447c1d 0x36447ad8) terminate called throwing an exception[
有谁遇到过同样的问题并解决了吗？
更新费用...
- (void)showWithLabelDeterminate {
HUD = [[MBProgressHUD alloc] initWithView:self.view.window];
[self.view.window addSubview:HUD];
// Set determinate mode
HUD.mode = MBProgressHUDModeDeterminate;
HUD.delegate =self;
HUD.labelText = NSLocalizedString(@"DownLoading","");
// myProgressTask uses the HUD instance to update progress
[HUD showWhileExecuting:@selector(productsDownloadProgress:) onTarget:self withObject:nil animated:YES];
}
- (void)productsDownloadProgress:(float)progress count:(int)count {
HUD.progress = progress;
UALOG(@"[StoreFrontDelegate] productsDownloadProgress: %f count: %d", progress, count);
if (count == 0) {
NSLog(@"Downloads complete !");
}
}
这在购买按钮上
- (void)purchase:(id)sender {
self.navigationItem.rightBarButtonItem.enabled = NO;
[UAStoreFront purchase:product.productIdentifier];
[self.navigationController popViewControllerAnimated:NO];
[[UAStoreFront shared] setDelegate:self];
[self showWithLabelDeterminate];
}
崩溃日志：
2012-01-30 13:12:45.555 isengua-en[12886:6e27]-[UAProductDetailViewController productsDownloadProgress:]：无法识别的选择器发送到实例 0x3f7f70 2012-01-30 13:12:45.557 isengua-en[12886:6e27] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UAProductDetailViewController productsDownloadProgress:]: unrecognized selector sent to instance 0x3f7f70' * First throw call stack: (0x30caa8bf 0x37e4f1e5 0x30cadacb 0x30cac945 0x30c07680 0x30c0922b 0xf5e21 0x37cbca91 0x37d505a1 0x36447c1d 0x36447ad8) terminate called throwing an例外