Mercurial > sdl-ios-xcode
view src/video/uikit/SDL_uikitappdelegate.m @ 3487:24d13328c44a
Eric Wing to Sam, hfutrell
This one is quite puzzling. I found a partial workaround, but I don't fully understand the reasons yet.
First, the console is complaining about not finding a nib for MainWindow.
I tried removing the entry for this in the info.plist, and the message went away, but it didn't really change anything.
Second, I stepped through this with the debugger and broke up some lines. It seems that the basic act of calling
view = [SDL_uikitopenglview alloc];
or even
view = [SDL_uikitview alloc]
will crash the program. The debugger messages plus the stack trace make me think it's not finding the SDL_uikitview classes for some reason. But I don't understand why this would be.
view = [UIView alloc] will not crash the program.
For kicks, I added a new definition of a class called SDL_object which subclasses NSObject in the same files as SDL_uikitopenglview and then call
view = [SDL_object alloc];
This does not crash the program.
So, then I modified SDL_object to subclass UIView. No crash.
Next, I made SDL_object subclass UIView<UITextFieldDelegate> . This crashes.
So it is the act of conforming to the UITextFieldDelegate protocol that is crashing things.
I don't understand why it would crash on alloc though. I'm guessing either a delegate needs to be set somewhere or one of the required methods needs to be implemented. But in the former case, I would not expect a crash, but a silent message to nil and something else doesn't work. And in the latter case, I would expect a compiler warning and an exception thrown instead of a crash.
Anyway, my temporary workaround is to change the interface declaration for SDL_uikitview to look like:
#if SDL_IPHONE_KEYBOARD
@interface SDL_uikitview : UIView<UITextFieldDelegate> {
#else
@interface SDL_uikitview : UIView {
#endif
And then disable the keyboard support in the SDL_config_iphoneos.h file.
/* enable iPhone keyboard support */
#define SDL_IPHONE_KEYBOARD 0
-Eric
On Nov 23, 2009, at 1:43 AM, Sam Lantinga wrote:
> I ran into a blocking startup crash with the Happy demo on iPhone OS 3.1.2 on my new iPhone:
>
> #0 0x323fea14 in _class_isInitialized
> #1 0x323fea68 in _class_initialize
> #2 0x32403e92 in prepareForMethodLookup
> #3 0x32401244 in lookUpMethod
> #4 0x323fea10 in _class_lookupMethodAndLoadCache
> #5 0x323fe746 in objc_msgSend_uncached
> #6 0x323feb26 in _class_initialize
> #7 0x323fea58 in _class_initialize
> #8 0x32403e92 in prepareForMethodLookup
> #9 0x32401244 in lookUpMethod
> #10 0x323fea10 in _class_lookupMethodAndLoadCache
> #11 0x323fe746 in objc_msgSend_uncached
> #12 0x000554dc in UIKit_GL_CreateContext at SDL_uikitopengles.m:103
> #13 0x0004f89e in SDL_GL_CreateContext at SDL_video.c:3155
> #14 0x000579e8 in GLES_CreateRenderer at SDL_renderer_gles.c:282
> #15 0x0004d7b8 in SDL_CreateRenderer at SDL_video.c:1509
> #16 0x00002bc2 in SDL_main at happy.c:156
> #17 0x000571b2 in -[SDLUIKitDelegate postFinishLaunch] at
> SDL_uikitappdelegate.m:77
> #18 0x313f9ef2 in __NSFireDelayedPerform
> #19 0x32567bb2 in CFRunLoopRunSpecific
> #20 0x3256735c in CFRunLoopRunInMode
> #21 0x32912cbe in GSEventRunModal
> #22 0x32912d6a in GSEventRun
> #23 0x32b6276e in -[UIApplication _run]
> #24 0x32b61472 in UIApplicationMain
> #25 0x00057088 in main at SDL_uikitappdelegate.m:50
>
> Any ideas?
>
> See ya!
> --
> -Sam Lantinga, Founder and President, Galaxy Gameworks LLC
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 24 Nov 2009 08:12:32 +0000 |
parents | ec4db979dddb |
children | 64ce267332c6 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #import "SDL_uikitappdelegate.h" #import "SDL_uikitopenglview.h" #import "SDL_events_c.h" #import "jumphack.h" #ifdef main #undef main #endif extern int SDL_main(int argc, char *argv[]); static int forward_argc; static char **forward_argv; int main(int argc, char **argv) { int i; NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; /* store arguments */ forward_argc = argc; forward_argv = (char **)malloc(argc * sizeof(char *)); for (i=0; i<argc; i++) { forward_argv[i] = malloc( (strlen(argv[i])+1) * sizeof(char)); strcpy(forward_argv[i], argv[i]); } /* Give over control to run loop, SDLUIKitDelegate will handle most things from here */ UIApplicationMain(argc, argv, NULL, @"SDLUIKitDelegate"); [pool release]; } @implementation SDLUIKitDelegate @synthesize window; @synthesize windowID; /* convenience method */ +(SDLUIKitDelegate *)sharedAppDelegate { /* the delegate is set in UIApplicationMain(), which is garaunteed to be called before this method */ return (SDLUIKitDelegate *)[[UIApplication sharedApplication] delegate]; } - (id)init { self = [super init]; window = nil; windowID = 0; return self; } - (void)postFinishLaunch { /* run the user's application, passing argc and argv */ int exit_status = SDL_main(forward_argc, forward_argv); /* free the memory we used to hold copies of argc and argv */ int i; for (i=0; i<forward_argc; i++) { free(forward_argv[i]); } free(forward_argv); /* exit, passing the return status from the user's application */ exit(exit_status); } - (void)applicationDidFinishLaunching:(UIApplication *)application { /* Set working directory to resource path */ [[NSFileManager defaultManager] changeCurrentDirectoryPath: [[NSBundle mainBundle] resourcePath]]; [self performSelector:@selector(postFinishLaunch) withObject:nil afterDelay:0.0]; } - (void)applicationWillTerminate:(UIApplication *)application { SDL_SendQuit(); /* hack to prevent automatic termination. See SDL_uikitevents.m for details */ longjmp(*(jump_env()), 1); } - (void) applicationWillResignActive:(UIApplication*)application { // NSLog(@"%@", NSStringFromSelector(_cmd)); SDL_SendWindowEvent(self.windowID, SDL_WINDOWEVENT_MINIMIZED, 0, 0); } - (void) applicationDidBecomeActive:(UIApplication*)application { // NSLog(@"%@", NSStringFromSelector(_cmd)); SDL_SendWindowEvent(self.windowID, SDL_WINDOWEVENT_RESTORED, 0, 0); } -(void)dealloc { [window release]; [super dealloc]; } @end