Mahtan/wagic
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added some error handling for downloading core files. app will display a message if an error has occurred while downloading and then retry the download after user dismisses the alert.

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TODO;  replace string literals with constants or static NSString objects.
This commit is contained in:
techdragon.nguyen@gmail.com
2011-12-12 12:24:12 +00:00
parent 59b1c8167e
commit db664e2836
6 changed files with 174 additions and 67 deletions
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2
projects/mtg/iOS/UI/WagicDownloadProgressViewController.h
View File

@@ -8,7 +8,7 @@
#import <UIKit/UIKit.h>
@interface WagicDownloadProgressViewController : UIViewController
@interface WagicDownloadProgressViewController : UIViewController<UIAlertViewDelegate>
{
}

131
projects/mtg/iOS/UI/WagicDownloadProgressViewController.m
View File

@@ -22,10 +22,30 @@ static NSString *kDownloadUrlPath = @"http://forevernow.net/wagic/";
static NSString *kDownloadFileName = @"core_017_iOS.zip";
- (void) handleFailedDownload: (NSNotification *) sender
{
NSString *downloadType = [sender object];
// figure out what to do. There could be other types of downloads, for now there is only "core"
if ( [downloadType isEqualToString: @"core"] )
{
NSLog(@"Download Core files failed. Retrying... ");
[self.downloadMessageStatus setText: @"Download Core files failed. Retrying... "];
UIAlertView *noNetworkConnectionAlert = [[UIAlertView alloc] initWithTitle: @"No Network Connection" message: @"Internet connection not found. Download can not continue until it is restored. Restore Wifi or Cellular connection and retry" delegate: self cancelButtonTitle: @"Retry Download" otherButtonTitles: nil];
[self.view addSubview: noNetworkConnectionAlert];
[noNetworkConnectionAlert show];
[noNetworkConnectionAlert release];
}
}
- (void) unpackageResources
{
[self.downloadMessageStatus setText: @"Installing Game Resource Files"];
NSError *error = nil;
NSFileManager *fm = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,
NSUserDomainMask, YES);
@@ -39,6 +59,7 @@ static NSString *kDownloadFileName = @"core_017_iOS.zip";
if (ret == NO)
{
// some error occurred
NSLog(@"An Error occurred while unpacking zip file.");
}
[za UnzipCloseFile];
@@ -50,22 +71,88 @@ static NSString *kDownloadFileName = @"core_017_iOS.zip";
{
NSLog(@"error occurred while trying to delete zip file! %@\n%@", downloadFilePath, [error localizedDescription] );
}
else
{
wagicAppDelegate *appDelegate = (wagicAppDelegate *)[[UIApplication sharedApplication] delegate];
NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
[dnc postNotificationName:@"readyToStartGame" object: appDelegate];
}
}
}
[za release], za = nil;
}
- (void)alertView:(UIAlertView *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
// the user clicked one of the OK/Cancel buttons
if (buttonIndex == 0 && [[actionSheet buttonTitleAtIndex: 0] isEqualToString: @"Retry Download"])
{
[self startDownload: @"core"];
}
else
{
NSLog(@"cancel");
}
}
- (void) startDownload: (NSString *) downloadType
{
wagicAppDelegate *appDelegate = [(wagicAppDelegate *)[UIApplication sharedApplication] delegate];
NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *userResourceDirectory = [[paths objectAtIndex:0] stringByAppendingString: @"/Res"];
NSString *downloadFilePath = [userResourceDirectory stringByAppendingString: [NSString stringWithFormat: @"/%@", kDownloadFileName]];
NSError *error = nil;
// make sure Res directory exists
if ( ![[NSFileManager defaultManager] fileExistsAtPath: userResourceDirectory] )
[[NSFileManager defaultManager] createDirectoryAtPath:userResourceDirectory withIntermediateDirectories: YES attributes:nil error: &error];
// if an error occurred while creating the directory, game can't really run so do something
// TODO: throw out a notification and deal with error
NSURL *url = nil;
// determine which file to download
if ([downloadType isEqualToString: @"core"])
{
url = [NSURL URLWithString: [NSString stringWithFormat: @"%@/%@", kDownloadUrlPath, kDownloadFileName]];
}
else if ( [downloadType isEqualToString: @"someOtherType"] )
{
NSLog( @"Not Implemented for type: %@", downloadType);
}
__block ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setTemporaryFileDownloadPath: [NSString stringWithFormat: @"%@.tmp", userResourceDirectory]];
[request setDownloadDestinationPath: downloadFilePath];
[request setDownloadProgressDelegate: downloadProgressView];
[request setShouldContinueWhenAppEntersBackground: YES];
[request setAllowCompressedResponse: YES];
[request setCompletionBlock:^{
[self unpackageResources];
wagicAppDelegate *appDelegate = (wagicAppDelegate *)[[UIApplication sharedApplication] delegate];
NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
[dnc postNotificationName:@"readyToStartGame" object: appDelegate];
}];
[request setFailedBlock:^{
// if there is an error in downloading the package what do we do?
// TODO: do something useful if there's an error in the download
// perhaps restart the download
NSError *error = [request error];
NSString *errorMessage = [NSString stringWithFormat: @"There was an error in downloading your files. %@", [error localizedDescription]];
NSLog(@"Error with download: %@", errorMessage);
// post a notification that a download error has occurred.
NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
[dnc postNotificationName:@"fileDownloadFailed" object: downloadType];
}];
[request startAsynchronous];
}
- (id) init
{
NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
[dnc addObserver: self selector: @selector(handleFailedDownload:) name: @"fileDownloadFailed" object: nil];
self = [super init];
if (self) {
bool isPhone = (UI_USER_INTERFACE_IDIOM()) == UIUserInterfaceIdiomPhone;
@@ -96,26 +183,7 @@ static NSString *kDownloadFileName = @"core_017_iOS.zip";
[self.downloadProgressView setFrame: CGRectMake(0, 0, 250, 50)];
[self.downloadProgressView setAutoresizingMask: UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight ];
NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *userResourceDirectory = [[paths objectAtIndex:0] stringByAppendingString: @"/Res"];
NSString *downloadFilePath = [[paths objectAtIndex: 0] stringByAppendingString: [NSString stringWithFormat: @"/%@", kDownloadFileName]];
// download the zip file but show a splash screen
NSURL *url = [NSURL URLWithString: [NSString stringWithFormat: @"%@/%@", kDownloadUrlPath, kDownloadFileName]];
__block ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setTemporaryFileDownloadPath: [NSString stringWithFormat: @"%@.tmp", userResourceDirectory]];
[request setDownloadDestinationPath: downloadFilePath];
[request setDownloadProgressDelegate: downloadProgressView];
[request setCompletionBlock:^{
[self unpackageResources];
}];
[request setFailedBlock:^{
NSError *error = [request error];
}];
[request startAsynchronous];
[self startDownload: @"core"];
[self.view addSubview: downloadMessageStatus];
[self.view addSubview: downloadProgressView];
@@ -126,6 +194,7 @@ static NSString *kDownloadFileName = @"core_017_iOS.zip";
#pragma mark Application Lifecycle
- (void) didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
@@ -183,8 +252,14 @@ static NSString *kDownloadFileName = @"core_017_iOS.zip";
{
[super viewDidLoad];
[self handleRotation: self.interfaceOrientation];
}
- (void) viewDidUnload
{
NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
[dnc removeObserver: self name: @"coreFileDownloadFailed" object: nil];
}
// Only allow auto rotation on iPads.
- (void) didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation