iOS 对iphone和 ipad的摄像头和图片库的区别处理代码

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     iPhone跟 iPad对摄像头和图片库的代码处理有点不一样，iPad主要是用使用

UIPopoverController来包含 UIImagePickerController.

   主要的代码如下：

   1. 类从UIViewController继承，然后里面实现  UINavigationControllerDelegate跟 

UIImagePickerControllerDelegate。

   2.  将ios的appDelegate类  的laungh函数中，将相应的代码修改为：

    // Set RootViewController to windowif ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){// warning: addSubView doesn't work on iOS6[window setRootViewController:viewController];[window addSubview: viewController.view];}else{// use this method on ios6[window setRootViewController:viewController];}

    主要目的是 当SDK< 6.0的时候，也设置  

[window setRootViewController:viewController];

   防止在后面取window.rootViewController的时候crash.

   3. *.h文件里面包含这么几个成员变量：

    

    UIImagePickerController* picker_camera_;UIImagePickerController* picker_library_;UIWindow * window;UIPopoverController  * pc_image_picker_;

   4. *.mm文件的内容如下：

@implementation IPHONEAvatarstatic IPHONEAvatar* _sharedIPHONEAvatar = nil;
static int _g_iImgIndex = 0;+(IPHONEAvatar*)sharedIPHONEAvatar {@synchronized([IPHONEAvatar class]){if(!_sharedIPHONEAvatar){[[self alloc] init];}return _sharedIPHONEAvatar;}return nil;
}+(id)alloc
{@synchronized ([IPHONEAvatar class]){NSAssert(_sharedIPHONEAvatar == nil,@"Attempted to allocated a second instance of the IPHONEAvatar singleton");_sharedIPHONEAvatar = [super alloc];return _sharedIPHONEAvatar;}return nil;
}- (void)imagePickerController:(UIImagePickerController*)picker
didFinishPickingImage:(UIImage*)image
editingInfo:(NSDictionary*)editingInfo
{NSMutableDictionary * dict= [NSMutableDictionary dictionaryWithDictionary:editingInfo];[dict setObject:image forKey:@"UIImagePickerControllerEditedImage"];[self imagePickerController:picker didFinishPickingMediaWithInfo:dict];
}-(void)image:(UIImage*)image didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo
{UNUSED(image);UNUSED(contextInfo);if (error) {CCLOG("saving pic error!");}
}- (void)imagePickerControllerDidCancel:(UIImagePickerController*)picker
{[picker.view removeFromSuperview];[picker dismissModalViewControllerAnimated:YES];[picker release];picker = nil;picker_camera_ = nil;picker_library_ = nil;if(window){[window removeFromSuperview];[window release];window = nil;}#ifdef   HD_EDITIONif (pc_image_picker_){[pc_image_picker_  dismissPopoverAnimated:YES];pc_image_picker_ = nil;}
#else#endif}//3.x  用户选中图片后的回调
- (void)imagePickerController:(UIImagePickerController*)picker
didFinishPickingMediaWithInfo:(NSDictionary*)info
{CCLOG("imagePickerController:");if (picker == picker_camera_) {//如果是 来自照相机的image，那么先保存UIImage* original_image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];UIImageWriteToSavedPhotosAlbum(original_image, self,@selector(image:didFinishSavingWithError:contextInfo:),nil);}UIImage* image = [info objectForKey: @"UIImagePickerControllerEditedImage"];NSError** error = 0;NSFileManager* fm = [NSFileManager defaultManager];NSString* my_avatar_temp_path = [NSString stringWithFormat:@"%@/Documents/MYAVATAR_TEMP%d.PNG", NSHomeDirectory(),_g_iImgIndex++];if ([fm fileExistsAtPath:my_avatar_temp_path]) {[fm removeItemAtPath:my_avatar_temp_path error:error];}//UIImage* avatar_image = [ImageHelper image:image fillView:avatar_];UIImage* avatar_image= nil;
#ifdef   HD_EDITIONavatar_image = [ImageHelper image:image fillSize:CGSizeMake(120.0f, 120.0f)];
#elseavatar_image = [ImageHelper image:image fillSize:CGSizeMake(120.0f, 120.0f)];
#endifNSData* imageData = UIImagePNGRepresentation(avatar_image);BOOL avatar_updated = NO;if (imageData) {BOOL bSuccess = [imageData writeToFile:my_avatar_temp_path atomically:YES];if (bSuccess){CCString strAvatarPath;strAvatarPath.initWithFormat("%s",[my_avatar_temp_path UTF8String]);CCLog("strAvatarPath: %s",strAvatarPath.getCString());CCNotificationCenter::sharedNotificationCenter()->postNotification(AVATARCHANGE,&strAvatarPath);}else{CCLog("Failed to save picture");}avatar_updated = bSuccess;}[picker.view removeFromSuperview];[picker dismissModalViewControllerAnimated:YES];[picker release];picker = nil;picker_camera_ = nil;picker_library_ = nil;if (window){[window removeFromSuperview];[window release];window = nil;}#ifdef   HD_EDITIONif (pc_image_picker_){[pc_image_picker_  dismissPopoverAnimated:YES];pc_image_picker_ = nil;}
#else#endif// upload new avatar to serverif (avatar_updated){std::string avatar_hash = getImageFileHashValue([my_avatar_temp_path UTF8String]) + ".png";NSString* my_avatar_path = [NSString stringWithFormat:@"%@/Documents/%s", NSHomeDirectory(), avatar_hash.c_str()];if ([fm fileExistsAtPath:my_avatar_path]){[fm removeItemAtPath:my_avatar_path error:error];}[fm moveItemAtPath: my_avatar_temp_pathtoPath: my_avatar_patherror: error];CCString strFileName;strFileName.initWithFormat("%s",[my_avatar_path UTF8String]);std::string   strUploading = LanguageManager::sharedLanguageManager()->getLocalizedString("uploading avatar,please waiting...");UIAlertView *    baseAlert = [[[UIAlertView alloc] initWithTitle:[NSString  stringWithUTF8String:strUploading.c_str()] message:nildelegate:self cancelButtonTitle:nil otherButtonTitles:nil] autorelease];[baseAlert show];std::string  strOk =  LanguageManager::sharedLanguageManager()->getLocalizedString("OK");if (AvatarManager::sharedAvatarManager()->uploadFile(strFileName) ){[baseAlert   dismissWithClickedButtonIndex:0 animated:YES];std::string   strUploadSuccess = LanguageManager::sharedLanguageManager()->getLocalizedString("upload avatar  success!");UIAlertView* av = [[[UIAlertView alloc] initWithTitle:@"tip" message:[NSString  stringWithUTF8String:strUploadSuccess.c_str()] delegate:self cancelButtonTitle:[NSString stringWithUTF8String:strOk.c_str()] otherButtonTitles:nil] autorelease];[av show];}else{[baseAlert   dismissWithClickedButtonIndex:0 animated:YES];std::string   strUploadFailed = LanguageManager::sharedLanguageManager()->getLocalizedString("upload avatar  failed!");UIAlertView* av = [[[UIAlertView alloc] initWithTitle:@"tip" message:[NSString  stringWithUTF8String:strUploadFailed.c_str()] delegate:self cancelButtonTitle: [NSString stringWithUTF8String:strOk.c_str()] otherButtonTitles:nil] autorelease];[av show];AnalyticX::flurryLogError(FLURRY_UPLOAD_AVATAR, "UPLOAD_AVATAR_FAILED");}}}-(void)onIPHONECamera
{if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {picker_camera_ = [[UIImagePickerController alloc] init];
#ifdef   HD_EDITIONpicker_camera_.sourceType = UIImagePickerControllerSourceTypeCamera;if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront]){picker_camera_.cameraDevice = UIImagePickerControllerCameraDeviceFront;}else{picker_camera_.cameraDevice = UIImagePickerControllerCameraDeviceRear;}picker_camera_.allowsEditing = YES;picker_camera_.delegate = self;#elsepicker_camera_.sourceType = UIImagePickerControllerSourceTypeCamera;if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront]){picker_camera_.cameraDevice = UIImagePickerControllerCameraDeviceFront;}else{picker_camera_.cameraDevice = UIImagePickerControllerCameraDeviceRear;}picker_camera_.allowsEditing = YES;picker_camera_.delegate = self;#endif     #ifdef   HD_EDITIONpicker_camera_.view.frame = [UIScreen mainScreen].bounds;window = [[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds]];window.rootViewController = picker_camera_;//self;if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){// warning: addSubView doesn't work on iOS6[window addSubview: picker_camera_.view];}else{// use this method on ios6[window setRootViewController:picker_camera_];//self];}[window makeKeyAndVisible];
#elsepicker_camera_.view.frame = [UIScreen mainScreen].bounds;window = [[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds]];window.rootViewController = picker_camera_;//self;if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){// warning: addSubView doesn't work on iOS6[window addSubview: picker_camera_.view];}else{// use this method on ios6[window setRootViewController:picker_camera_];//self];}[window makeKeyAndVisible];
#endif}else{//提示摄像头无法用}
}-(void)onIPHONEAlbum
{picker_library_ = [[UIImagePickerController alloc] init];
#ifdef HD_EDITIONpicker_library_.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;picker_library_.allowsEditing = YES;picker_library_.delegate = self;#elsepicker_library_.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;picker_library_.allowsEditing = YES;picker_library_.delegate = self;#endif #ifdef HD_EDITIONCGSize  libSize  =  picker_library_.view.frame.size;//libSize = CGSizeMake(160/2, 160/2);pc_image_picker_ = [[UIPopoverController alloc] initWithContentViewController:picker_library_];if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){CCLog("systemVersion<6.0");}else{CCLog("systemVersion>=6.0");}[pc_image_picker_ presentPopoverFromRect:CGRectMake(57/2, 352/2, libSize.width, libSize.height) inView:[[UIApplication sharedApplication] keyWindow].rootViewController.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];#else[[[UIApplication sharedApplication] keyWindow] addSubview:picker_library_.view];
#endif}@end

具体细节就不说了，主要是区分iPhone和iPad，然后区分 SDK6.0以上跟 6.0以下。

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