用UIImagePickerViewController自定义相机界面
1.设定imagePacker参数
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// Transform values for full screen support:
#define CAMERA_TRANSFORM_X?1
// this works for iOS 4.x
#define CAMERA_TRANSFORM_Y?1.24299?
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-(void)viewWillAppear:(BOOL)animated{
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????UIImagePickerController?*imagePickerController = [[UIImagePickerController?alloc]?init];
imagePickerController.delegate?=?self;
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imagePickerController.sourceType?=?UIImagePickerControllerSourceTypeCamera;
imagePickerController.showsCameraControls?=?NO;
imagePickerController.navigationBarHidden?=?YES;
imagePickerController.wantsFullScreenLayout?=?YES;
imagePickerController.cameraViewTransform?=CGAffineTransformScale(imagePickerController.cameraViewTransform,?CAMERA_TRANSFORM_X,CAMERA_TRANSFORM_Y);
????cameraViewController?= [[CameraOverlayViewControlleralloc]initWithNibName:@"CameraOverlayViewController"?bundle:nil];
????imagePickerController.cameraOverlayView?=?cameraViewController.view;
????cameraViewController.pickerController?= imagePickerController;
????[self?presentModalViewController:imagePickerController?animated:NO];
????[imagePickerController?release];
}
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2.代理方法
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-(void)imagePickerController:(UIImagePickerController?*)picker didFinishPickingMediaWithInfo:(NSDictionary?*)info{
????[picker?dismissModalViewControllerAnimated:NO];
????UIImage* image = [info?valueForKey:UIImagePickerControllerOriginalImage];
????BeautifyPhotoViewController* beautifyPhotoViewController = [[BeautifyPhotoViewControlleralloc]initWithNibName:@"BeautifyPhotoViewController"?bundle:nil];
????beautifyPhotoViewController.photoImage?= image;
????[self.navigationController pushViewController:beautifyPhotoViewController?animated:YES];
????[beautifyPhotoViewController?release];
}
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3.overlayView对应的controller
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#import?"CameraOverlayViewController.h"
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@interface?CameraOverlayViewController?()
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@end
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@implementation?CameraOverlayViewController
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@synthesize?pickerController;
@synthesize?cameraScaleBtn;
@synthesize?titleImageView;
@synthesize?flashModeBtn;
@synthesize?deviceModeBtn;
@synthesize?photoBtn;
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- (id)initWithNibName:(NSString?*)nibNameOrNil bundle:(NSBundle?*)nibBundleOrNil
{
????self?= [super?initWithNibName:nibNameOrNil?bundle:nibBundleOrNil];
????if?(self) {
????????// Custom initialization
????????[self?getAllPhotoImages];
????}
????return self;
}
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- (void)viewDidLoad
{
????[super?viewDidLoad];
????isOneToOne?=?YES;
????imageArray?= [[NSMutableArray?alloc]init];
????shadowView?= [[ShadowView?alloc]initWithRect:CGRectMake(0,?80,?320,?320)];
????[self.view addSubview:shadowView];
????[self.view sendSubviewToBack:shadowView];
????[shadowView release];
????// Do any additional setup after loading the view from its nib.
}
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- (void)viewDidUnload
{
????[super?viewDidUnload];
????// Release any retained subviews of the main view.
????// e.g. self.myOutlet = nil;
}
//闪光灯
-(IBAction)cameraTorchOn:(id)sender{
????if?(pickerController.cameraFlashMode?==UIImagePickerControllerCameraFlashModeAuto) {
????????pickerController.cameraFlashMode?=?UIImagePickerControllerCameraFlashModeOn;
????}else?{
????????pickerController.cameraFlashMode?=?UIImagePickerControllerCameraFlashModeOff;
????}
}
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//前后摄像头
- (IBAction)swapFrontAndBackCameras:(id)sender {
????if?(pickerController.cameraDevice?==UIImagePickerControllerCameraDeviceRear?) {
????????pickerController.cameraDevice?=?UIImagePickerControllerCameraDeviceFront;
????}else?{
????????pickerController.cameraDevice?=?UIImagePickerControllerCameraDeviceRear;
????}
}
//改变拍摄比例
-(IBAction)changeCameraScale:(id)sender{
????if?(isOneToOne) {
????????[shadowView changeRect:CGRectMake(0,?0,?320,?428)];
????????[cameraScaleBtn setImage:[UIImage?imageNamed:@"font_-scale43.png"]forState:UIControlStateNormal];
????????titleImageView.alpha?=?0.2;
????????flashModeBtn.alpha?=?0.5;
????????deviceModeBtn.alpha?=?0.5;
????????isOneToOne?=?NO;
????}else?{
????????[shadowView changeRect:CGRectMake(0,?80,?320,?320)];
????????[cameraScaleBtn setImage:[UIImage?imageNamed:@"font_-scale11.png"]forState:UIControlStateNormal];
????????titleImageView.alpha?=?1;
????????flashModeBtn.alpha?=?1;
????????deviceModeBtn.alpha?=?1;
????????isOneToOne?=?YES; ?
????}
}
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- (IBAction)enterPhotoAlbum:(id)sender {
????PhotoAlbumViewController* photoAlbumViewController?= [[PhotoAlbumViewControlleralloc]initWithNibName:@"PhotoAlbumViewController"?bundle:nil];
????[self?presentModalViewController:photoAlbumViewController?animated:YES];
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}
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//拍摄照片
-(IBAction)takeThePic:(id)sender{
????[pickerController takePicture];
}
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-(IBAction)backToHome:(id)sender{
????[pickerController dismissModalViewControllerAnimated:NO];
????[[NSNotificationCenter?defaultCenter]?postNotificationName:@"backToHome"?object:nil];
}
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- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
????return?(interfaceOrientation ==?UIInterfaceOrientationPortrait);
}
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- (void)dealloc
{
????[cameraScaleBtn release];
????[flashModeBtn release];
????[deviceModeBtn release];
????[titleImageView release];
????[super?dealloc];
}
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-(void)getAllPhotoImages{
????ALAssetsLibraryAccessFailureBlock?failureblock = ^(NSError?*myerror){
????????
????????NSLog(@"error occour =%@", [myerror?localizedDescription]);
????};
????ALAssetsGroupEnumerationResultsBlock?groupEnumerAtion = ^(ALAsset?*result,?NSUInteger?index,BOOL?*stop){
????????if?(result!=NULL) {
????????????if?([[result?valueForProperty:ALAssetPropertyType]?isEqualToString:ALAssetTypePhoto]) {
????????????????[imageArray?addObject:result];
????????????????UIImage?*img=[UIImage?imageWithCGImage:result.thumbnail];
????????????????[photoBtn setImage:img?forState:UIControlStateNormal];
????????????}
????????}
????};
????ALAssetsLibraryGroupsEnumerationResultsBlock
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????libraryGroupsEnumeration?= ^(ALAssetsGroup* group,?BOOL* stop){
????????
????????if?(group ==?nil) {
????????????return;
????????}
????????if?(group!=nil) {
????????????[group?enumerateAssetsUsingBlock:groupEnumerAtion];
????????}
????};
????ALAssetsLibrary* library = [[ALAssetsLibrary?alloc]?init];
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????[library?enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos
?????
???????????????????????????usingBlock:libraryGroupsEnumeration?
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?????????????????????????failureBlock:failureblock];
????[library?release];
}
@end
