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jtbowden
Member
I am trying to set up an in-app email.
I have all the code from several examples I have found, and it works... sort of.
The problem is that the mail window is extremely slow. It only responds to touches every second or so.
I paused the Director, still slow. I checked the CPU monitor, and it is not being taxed at all.
Has anyone else seen this? Or does anyone have code that does not have this problem that I can compare against?
Before I bring up the mail composer I do this:
CCDirector *director = [CCDirector sharedDirector];
[director pause];
[director stopAnimation];
[director.openGLView setUserInteractionEnabled:NO];and in the callback
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
//...handle your errors etc.. and dismiss the modal view controller here...
CCDirector *director = [CCDirector sharedDirector];
[director.openGLView setUserInteractionEnabled:YES];
[director startAnimation];
[director resume];
}Post back if this works for you.
Also,
I had a bunch of headaches getting the MFM view to remove itself completely, so I ended up NSLogging up the view chain until I figured out what view needed removing...
[mailComposer.view.superview removeFromSuperview];If your implementation works, can you post the code back for the rest of us?
Thanks.
jtbowden
Member
@CJ: Thank you, thank you, thank you! That did the trick. I thought I was going completely crazy last night.
The key was the '[director stopAnimation]'. I assumed that it was included in [Directore pause], but I guess assuming was my mistake.
Here is what my implementation looks like:
I include the MessageUI and MFMailComposeViewController in the header of my Scene/Layer, make the layer a MFMailComposeViewControllerDelegate a and setup a mailComposer:
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
@interface MyCCLayer : CCLayer <MFMailComposeViewControllerDelegate> {
...
UIViewController *mailComposer;
}Then in the layer I added code to show the controller, and a mailComposeController callback:
Note, I am currently building a plist for level data, and making a level Thumbnail, and attaching both to the email. I am using this for beta testers to send me levels they create for the game. When I release it, I will redo this a bit so that people can send each other their levels to play.
-(void) showEmail: (id) sender {
CCDirector *director = [CCDirector sharedDirector];
[director pause];
[director stopAnimation];
[director.openGLView setUserInteractionEnabled:NO];
int levelNum = [self getCurrentLevelNum];
// This takes my dictionary that stores level data, and creates xml data that we will attach to the email
NSDictionary *levelDict = [levelArray objectAtIndex: levelNum];
NSString *error = [[NSString alloc] init];
NSData *levelData = [NSPropertyListSerialization dataFromPropertyList: levelDict
format: NSPropertyListXMLFormat_v1_0
errorDescription: &error];
NSLog(@"Error: %@", error);
// This creates the level thumbnail, which we will include in the email as well
// There is probably a better way to do this
NSString *levelString = [levelDict objectForKey: @"data"];
LevelPickLayer *levelPick = [LevelPickLayer node];
CCSprite *levelSprite = [levelPick createThumbnailLevel: levelString shadows: NO];
CCRenderTexture *levelThumb = [CCRenderTexture renderTextureWithWidth: 224 height: 160];
[levelThumb begin];
[levelSprite setScale: LVL_SPRITE_SCALE*2];
[levelSprite setPosition: ccp(0,0)];
[levelSprite setAnchorPoint: ccp(0,0)];
[levelSprite visit];
[levelThumb end];
[levelThumb saveBuffer: @"mylevel.png" format: kImageFormatPNG];
// Read back the level thumbnail so we can attach the PNG to the email
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent: @"mylevel.png"];
NSData *imageData = [NSData dataWithContentsOfFile: fullPath];
// The actual mail window call
mailComposer = [[UIViewController alloc] init];
[mailComposer setView:[[CCDirector sharedDirector] openGLView]];
[mailComposer setModalTransitionStyle: UIModalTransitionStyleCoverVertical];
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject: @"My Game Level"];
[picker addAttachmentData: imageData mimeType:@"image/png" fileName: @"mylevel.png"];
[picker addAttachmentData: levelData mimeType:@"text/xml" fileName: @"mylevel.plist"];
// Fill out the email body text
NSString *content = @"Blah blah.\n";
NSString *pageLink = @"http://mylink.com";
NSString *iTunesLink = @"http://iTunes.com/mylevellink";
NSString *emailBody = [NSString stringWithFormat: @"Sent from <a href = '%@'>Fun Game</a> on iPhone. <a href = '%@'>Download</a> yours from AppStore now!", pageLink, iTunesLink];
[picker setMessageBody:emailBody isHTML:YES];
[mailComposer presentModalViewController:picker animated:NO];
[picker release];
}
// Dismisses the email composition interface when users tap Cancel or Send.
-(void) mailComposeController: (MFMailComposeViewController*)controller didFinishWithResult: (MFMailComposeResult)result error:(NSError*)error
{
// Notifies users about errors associated with the interface
switch (result)
{
case MFMailComposeResultCancelled:
break;
case MFMailComposeResultSaved:
break;
case MFMailComposeResultSent:
break;
case MFMailComposeResultFailed:
break;
default:
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Email" message:@"Sending Failed – Unknown Error "
delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
[alert show];
[alert release];
}
break;
}
[mailComposer dismissModalViewControllerAnimated:NO];
// Force game back to landscape mode. If you don't weird things happen
[[UIApplication sharedApplication] setStatusBarOrientation: CCDeviceOrientationLandscapeLeft animated:NO];
CCDirector *director = [CCDirector sharedDirector];
[director.openGLView setUserInteractionEnabled:YES];
[director startAnimation];
[director resume];
[mailComposer.view.superview removeFromSuperview];
}Cool, glad it worked for you.
And I figured out why I was getting strange behavior whenever I did a presentModalViewController
It's because I wasn't using UIViewController's in the intended way. After reading the view controller programming guide I understand what was wrong. ( http://developer.apple.com/iphone/library/featuredarticles/ViewControllerPGforiPhoneOS/Introduction/Introduction.html )
Here's what I've done to fix this (and other UIView + Cocos2D) issues:
1. In my app delegate I now have a rootViewController.
2. Add this controller's view as a subview of window.
3. Attach the director into the controller's view.
Now when presenting a modal view controller, you simply do
[(YourAppDelegateClassName *)[[UIApplication sharedApplication] delegate].rootViewController presentModalViewController:someOtherViewControllerLikeMailOrCameraEtc animated:YES];sure. (And I removed the bit about not needing to dismiss the modals, the docs say you do need to still do that in your delegate callbacks.)
First MyAppDelegate.h
@interface MyAppDelegate : NSObject <UIApplicationDelegate>
{
UIWindow *window;
UIViewController *viewController;
}
@property (nonatomic, retain) UIViewController *viewController;
@endMyAppDelegate.m
#import "MyAppDelegate.h"
@implementation MyAppDelegate
@synthesize viewController;
- (void) applicationDidFinishLaunching:(UIApplication *)application
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
//UIWindow, UIView, and UIViewController
window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[window setUserInteractionEnabled:YES];
[window setMultipleTouchEnabled:YES];
[window makeKeyAndVisible];
UIView *aView = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
viewController = [[UIViewController alloc] initWithNibName:nil bundle:nil];
viewController.view = aView;
[window addSubview:viewController.view];
//Setup Cocos2D
director = [CCDirector sharedDirector];
//1. FPS
[director setAnimationInterval:kGameFrameInterval];
//2. Framebuffer format
[director setPixelFormat:kCCPixelFormatRGB565];
//3. Default Texture Memory format
[CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888];
//4. Set device orientation
[director setDeviceOrientation:kCCDeviceOrientationPortrait];//CCDeviceOrientationLandscapeLeft];
//5. Optionally enable FPS display
[director setDisplayFPS:YES];
//6. Optionally use depth buffer: this means that openGL z-order will be taken into account. (must be before attached, so that it properly enables/disables depth testing)
[director setDepthBufferFormat:kCCDepthBufferNone];
//7. Attach director to view
[director attachInView:viewController.view];
//8. Run first scene
[director runWithScene:[CCScene node]];
[pool drain];
}
@end
ccnewbies
Member
I had implemented the code as shown by jtbowden, but got the following error on
// Force game back to landscape mode. If you don't weird things happen
[[UIApplication sharedApplication] setStatusBarOrientation: CCDeviceOrientationLandscapeLeft animated:NO];
---error:cannot convert 'ccDeviceOrientation' to 'UIInterfaceOrientation' in argument passing----
Anything that I miss out?
Thanks
The best way to do this is to use your root view controller.
In the code below, I have a property in my AppDelegate class to get the root view controller.
You could also get the root view controller from the window object.
Make sure the class you put this in indicates that it's a MFMailComposeViewControllerDelegate, like:
@interface InfoLayer : CCLayer <MFMailComposeViewControllerDelegate>
//...- (IBAction) sendEmail: (id) sender
{
BOOL bCanSendMail = [MFMailComposeViewController canSendMail];
if (!bCanSendMail)
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"No Email Account"
message: @"You must set up an email account for your device before you can send mail."
delegate: nil
cancelButtonTitle: nil
otherButtonTitles: @"OK", nil];
[alert show];
[alert release];
}
else
{
AppDelegate *appDelegate = (AppDelegate *) [[UIApplication sharedApplication] delegate];
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setToRecipients: [NSArray arrayWithObject: @"dave@blahblahblah.com"]];
[picker setSubject: @"An important email!"];
[picker setMessageBody: @"Blah blah blah! Blah blah, blah blah blah!" isHTML: NO];
[[appDelegate rootViewController] presentModalViewController: picker animated: YES];
[picker release];
}
}
- (void) mailComposeController: (MFMailComposeViewController *) controller
didFinishWithResult: (MFMailComposeResult) result
error: (NSError *) error
{
AppDelegate *appDelegate = (AppDelegate *) [[UIApplication sharedApplication] delegate];
[[appDelegate rootViewController] dismissModalViewControllerAnimated: YES];
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