6.自定義圖片剪下

TKImageView：https://github.com/3tinkers/TKImageView

#import

@protocolCameraDelegate

- (void)CameraTakePhoto:(UIImage *)image;

@end

@interfaceCameraViewController : UIViewController

@property(nonatomic,weak)id delegate;

@end

#import "CameraViewController.h"

#import

#import "ClipViewController.h"

#define KWIDTH [UIScreen mainScreen].bounds.size.width

#define KHEIGHT [UIScreen mainScreen].bounds.size.height

@interfaceCameraViewController ()

/**

* AVCaptureSession物件來執行輸入裝置和輸出裝置之間的資料傳遞

*/

@property(nonatomic,strong) AVCaptureSession* session;

/**

* 輸入裝置

*/

@property(nonatomic,strong) AVCaptureDeviceInput* videoInput;

/**

* 照片輸出流

*/

@property(nonatomic,strong) AVCaptureStillImageOutput* stillImageOutput;

/**

* 預覽圖層

*/

@property(nonatomic,strong) AVCaptureVideoPreviewLayer* previewLayer;

/**

* 記錄開始的縮放比例

*/

@property(nonatomic,assign)CGFloat beginGestureScale;

/**

* 最後的縮放比例

*/

@property(nonatomic,assign)CGFloat effectiveScale;

@property(nonatomic,strong) AVCaptureConnection *stillImageConnection;

@property (nonatomic, strong) NSData *jpegData;

@property(nonatomic,assign) CFDictionaryRef attachments;

@property (nonatomic, strong) UIView *toolView;

@property(nonatomic,strong) UIView *editorView;

@property(nonatomic,strong) UIImagePickerController *imgPicker;

@end

@implementationCameraViewController

- (void)viewDidLoad {

[superviewDidLoad];

// [self CreatedCamera];

// [self selectImageFrromCamera];

[selfinitAVCaptureSession];

[selfsetUpGesture];

[selfcreatedTool];

}

- (void)createdTool

{

UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0,0, KWIDTH,64)];

headerView.backgroundColor = [UIColor blackColor];

headerView.alpha =0.8;

[self.view addSubview:headerView];

UILabel *titleLable = [[UILabel alloc] initWithFrame:CGRectMake((KWIDTH -100)/2.0,12,100,40)];

titleLable.text =@"拍照";

[titleLable setTextColor:[UIColor whiteColor]];

titleLable.textAlignment = NSTextAlignmentCenter;

[headerView addSubview:titleLable];

UIButton *headerBtn = [UIButton buttonWithType:UIButtonTypeCustom];

headerBtn.frame = CGRectMake(KWIDTH - 80-15,12,80,40);

[headerBtn setTitle:@"取消"forState:UIControlStateNormal];

[headerBtn addTarget:selfaction:@selector(cancleCamera) forControlEvents:UIControlEventTouchUpInside];

[headerView addSubview:headerBtn];

[self.navigationController.navigationBar.subviews.lastObject setHidden:YES];

self.toolView = [[UIView alloc] initWithFrame:CGRectMake(0, KHEIGHT -120, KWIDTH,120)];

self.toolView.backgroundColor = [UIColor blackColor];

self.toolView.alpha =0.8;

[self.view addSubview:self.toolView];

UIButton *cameraBtn = [UIButton buttonWithType:UIButtonTypeCustom];

cameraBtn.frame = CGRectMake((KWIDTH -50)/2.0, (120-50)/2.0,50,50);

[cameraBtn setImage:[UIImage imageNamed:@"takePhoto"] forState:UIControlStateNormal];

[cameraBtn addTarget:selfaction:@selector(takePhotoButtonClick) forControlEvents:UIControlEventTouchUpInside];

[self.toolView addSubview:cameraBtn];

UIButton *photoBtn = [UIButton buttonWithType:UIButtonTypeCustom];

photoBtn.frame = CGRectMake(((KWIDTH /2.0) -30)/2.0, ((120) -30)/2.0,30,30);

[photoBtn addTarget:selfaction:@selector(openCamera) forControlEvents:UIControlEventTouchUpInside];

[photoBtn setImage:[UIImage imageNamed:@"cameraPhoto"] forState:UIControlStateNormal];

[self.toolView addSubview:photoBtn];

UIButton *lampBtn = [UIButton buttonWithType:UIButtonTypeCustom];

lampBtn.frame = CGRectMake(((KWIDTH /2.0) -30)/2.0+ (KWIDTH /2.0), ((120) -30)/2.0,30,30);

[lampBtn setImage:[UIImage imageNamed:@"openFlish"] forState:UIControlStateSelected];

[lampBtn setImage:[UIImage imageNamed:@"closeFlish"] forState:UIControlStateNormal];

[lampBtn addTarget:selfaction:@selector(flashButtonClick:) forControlEvents:UIControlEventTouchUpInside];

[self.toolView addSubview:lampBtn];

}

- (void)initAVCaptureSession{

self.session = [[AVCaptureSession alloc] init];

NSError *error;

self.effectiveScale =1.0;

AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

//更改這個設定的時候必須先鎖定裝置，修改完後再解鎖，否則崩潰

[device lockForConfiguration:nil];

[device unlockForConfiguration];

self.videoInput = [[AVCaptureDeviceInput alloc] initWithDevice:device error:&error];

if(error) {

NSLog(@"%@",error);

}

self.stillImageOutput = [[AVCaptureStillImageOutput alloc] init];

//輸出設定。AVVideoCodecJPEG 輸出jpeg格式圖片

NSDictionary * outputSettings = [[NSDictionary alloc] initWithObjectsAndKeys:AVVideoCodecJPEG,AVVideoCodecKey,nil];

[self.stillImageOutput setOutputSettings:outputSettings];

if([self.session canAddInput:self.videoInput]) {

[self.session addInput:self.videoInput];

}

if([self.session canAddOutput:self.stillImageOutput]) {

[self.session addOutput:self.stillImageOutput];

}

//初始化預覽圖層

self.previewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:self.session];

[self.previewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];

self.previewLayer.frame = CGRectMake(0,0,KWIDTH, KHEIGHT);

self.view.layer.masksToBounds =YES;

[self.view.layer addSublayer:self.previewLayer];

[selfresetFocusAndExposureModes];

}

- (void)viewWillAppear:(BOOL)animated{

[superviewWillAppear:YES];

if(self.session) {

[self.session startRunning];

}

- (void)viewDidDisappear:(BOOL)animated{

[superviewDidDisappear:YES];

if(self.session) {

[self.session stopRunning];

}

//自動聚焦、曝光

- (BOOL)resetFocusAndExposureModes{

AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

AVCaptureExposureMode exposureMode = AVCaptureExposureModeContinuousAutoExposure;

AVCaptureFocusMode focusMode = AVCaptureFocusModeContinuousAutoFocus;

BOOLcanResetFocus = [device isFocusPointOfInterestSupported] && [device isFocusModeSupported:focusMode];

BOOLcanResetExposure = [device isExposurePointOfInterestSupported] && [device isExposureModeSupported:exposureMode];

CGPoint centerPoint = CGPointMake(0.5f,0.5f);

NSError *error;

if([device lockForConfiguration:&error]) {

if(canResetFocus) {

device.focusMode = focusMode;

device.focusPointOfInterest = centerPoint;

}

if(canResetExposure) {

device.exposureMode = exposureMode;

device.exposurePointOfInterest = centerPoint;

}

[device unlockForConfiguration];

returnYES;

}

else{

NSLog(@"%@", error);

returnNO;

}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

UITouch *touch = touches.anyObject;

CGPoint point = [touch locationInView:self.view];

[selffocusAtPoint:point];

}

//聚焦

- (void)focusAtPoint:(CGPoint)point {

AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

if([selfcameraSupportsTapToFocus] && [device isFocusModeSupported:AVCaptureFocusModeAutoFocus]) {

NSError *error;

if([device lockForConfiguration:&error]) {

device.focusPointOfInterest = point;

device.focusMode = AVCaptureFocusModeAutoFocus;

[device unlockForConfiguration];

}

else{

NSLog(@"%@", error);

}

- (BOOL)cameraSupportsTapToFocus {

return[[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo] isFocusPointOfInterestSupported];

}

//獲取裝置方向

-(AVCaptureVideoOrientation)avOrientationForDeviceOrientation:(UIDeviceOrientation)deviceOrientation

{

AVCaptureVideoOrientation result = (AVCaptureVideoOrientation)deviceOrientation;

if( deviceOrientation == UIDeviceOrientationLandscapeLeft )

result = AVCaptureVideoOrientationLandscapeRight;

elseif( deviceOrientation == UIDeviceOrientationLandscapeRight )

result = AVCaptureVideoOrientationLandscapeLeft;

returnresult;

}

//照相

- (void)takePhotoButtonClick {

_stillImageConnection = [self.stillImageOutput connectionWithMediaType:AVMediaTypeVideo];

UIDeviceOrientation curDeviceOrientation = [[UIDevice currentDevice] orientation];

AVCaptureVideoOrientation avcaptureOrientation = [selfavOrientationForDeviceOrientation:curDeviceOrientation];

[_stillImageConnection setVideoOrientation:avcaptureOrientation];

[_stillImageConnection setVideoScaleAndCropFactor:self.effectiveScale];

[self.stillImageOutput captureStillImageAsynchronouslyFromConnection:_stillImageConnection completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error) {

NSData *jpegData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageDataSampleBuffer];

[selfjumpImageView:jpegData];

}];

}

//拍照之後調到相片詳情頁面

-(void)jumpImageView:(NSData*)data{

ClipViewController *viewController = [[ClipViewController alloc] init];

UIImage *image = [UIImage imageWithData:data];

viewController.image = image;

viewController.picker = _imgPicker;

viewController.controller =self;

viewController.delegate =self;

viewController.isTakePhoto =YES;

[selfpresentViewController:viewController animated:NOcompletion:nil];

}

- (void)cancleCamera

{

[selfdismissViewControllerAnimated:YEScompletion:nil];

}

#pragma mark -- TakePhotoDelegate

- (void)takePhoto:(UIImage *)image

{

if(self.delegate && [self.delegate respondsToSelector:@selector(CameraTakePhoto:)]) {

[selfdismissViewControllerAnimated:YEScompletion:nil];

[self.delegate CameraTakePhoto:image];

}

//開啟閃光燈

- (void)flashButtonClick:(UIButton *)sender {

sender.selected = !sender.selected;

if(sender.isSelected ==YES) {//開啟閃光燈

AVCaptureDevice *captureDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

NSError *error =nil;

if([captureDevice hasTorch]) {

BOOLlocked = [captureDevice lockForConfiguration:&error];

if(locked) {

captureDevice.torchMode = AVCaptureTorchModeOn;

[captureDevice unlockForConfiguration];

}

}else{//關閉閃光燈

AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

if([device hasTorch]) {

[device lockForConfiguration:nil];

[device setTorchMode: AVCaptureTorchModeOff];

[device unlockForConfiguration];

}

//新增手勢代理

- (void)setUpGesture

{

UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:selfaction:@selector(handlePinchGesture:)];

pinch.delegate =self;

[self.view addGestureRecognizer:pinch];

}

//縮放手勢用於調整焦距

- (void)handlePinchGesture:(UIPinchGestureRecognizer *)recognizer{

BOOLallTouchesAreOnThePreviewLayer =YES;

NSUInteger numTouches = [recognizer numberOfTouches], i;

for( i =0; i < numTouches; ++i ) {

CGPoint location = [recognizer locationOfTouch:i inView:self.view];

CGPoint convertedLocation = [self.previewLayer convertPoint:location fromLayer:self.previewLayer.superlayer];

if( ! [self.previewLayer containsPoint:convertedLocation] ) {

allTouchesAreOnThePreviewLayer =NO;

break;

}

if( allTouchesAreOnThePreviewLayer ) {

self.effectiveScale =self.beginGestureScale * recognizer.scale;

if(self.effectiveScale <1.0){

self.effectiveScale =1.0;

}

NSLog(@"%f-------------->%f------------recognizerScale%f",self.effectiveScale,self.beginGestureScale,recognizer.scale);

CGFloat maxScaleAndCropFactor = [[self.stillImageOutput connectionWithMediaType:AVMediaTypeVideo] videoMaxScaleAndCropFactor];

NSLog(@"%f",maxScaleAndCropFactor);

if(self.effectiveScale > maxScaleAndCropFactor)

self.effectiveScale = maxScaleAndCropFactor;

[CATransaction begin];

[CATransaction setAnimationDuration:.025];

[self.previewLayer setAffineTransform:CGAffineTransformMakeScale(self.effectiveScale,self.effectiveScale)];

[CATransaction commit];

}

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer

{

if( [gestureRecognizer isKindOfClass:[UIPinchGestureRecognizer class]] ) {

self.beginGestureScale =self.effectiveScale;

}

return YES;

}

//開啟相簿

- (void)openCamera

{

[selfopenImagePickerControllerWithType:UIImagePickerControllerSourceTypeSavedPhotosAlbum];

}

/// 開啟ImagePickerController的方法

- (void)openImagePickerControllerWithType:(UIImagePickerControllerSourceType)type

{

// 裝置不可用直接返回

if(![UIImagePickerController isSourceTypeAvailable:type])return;

_imgPicker = [[UIImagePickerController alloc] init];

_imgPicker.sourceType = type;

_imgPicker.delegate =self;

_imgPicker.allowsEditing =NO;

[selfpresentViewController:_imgPicker animated:YEScompletion:nil];

}

#pragma mark - UINavigationControllerDelegate, UIImagePickerControllerDelegate

// 選擇照片之後

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

UIImage *image = info[UIImagePickerControllerOriginalImage];

[selfcropImage:image];

}

- (void)cropImage: (UIImage *)image {

ClipViewController *viewController = [[ClipViewController alloc] init];

viewController.image = image;

viewController.picker = _imgPicker;

viewController.controller =self;

viewController.delegate =self;

viewController.isTakePhoto =NO;

[_imgPicker presentViewController:viewController animated:NOcompletion:nil];

}

#pragma mark -- ClipPhotoDelegate

- (void)clipPhoto:(UIImage *)image

{

if(self.delegate && [self.delegate respondsToSelector:@selector(CameraTakePhoto:)]) {

[selfdismissViewControllerAnimated:YEScompletion:nil];

[self.delegate CameraTakePhoto:image];

}

@end

------------------------

#import

@protocolClipPhotoDelegate

- (void)clipPhoto:(UIImage *)image;

@end

@interfaceClipViewController : UIViewController

@property (strong, nonatomic) UIImage *image;

@property(nonatomic,strong) UIImagePickerController *picker;

@property(nonatomic,strong) UIViewController *controller;

@property(nonatomic,weak)id delegate;

@property (nonatomic, assign) BOOL isTakePhoto;

@end

#import "ClipViewController.h"

#import "TKImageView.h"

#define SelfWidth [UIScreen mainScreen].bounds.size.width

#define SelfHeight [UIScreen mainScreen].bounds.size.height

@interfaceClipViewController ()

@property (nonatomic, assign) BOOL isClip;

@property(nonatomic,strong) TKImageView *tkImageView;

@end

@implementationClipViewController

- (void)viewDidLoad {

[superviewDidLoad];

[selfcreatedTkImageView];

[selfcreatedTool];

}

- (void)createdTkImageView

{

_tkImageView = [[TKImageView alloc] initWithFrame:CGRectMake(0,0, SelfWidth, SelfHeight -120)];

[self.view addSubview:_tkImageView];

//需要進行裁剪的圖片物件

_tkImageView.toCropImage = _image;

//是否顯示中間線

_tkImageView.showMidLines =YES;

//是否需要支援縮放裁剪

_tkImageView.needScaleCrop =YES;

//是否顯示九宮格交叉線

_tkImageView.showCrossLines =YES;

_tkImageView.cornerBorderInImage =NO;

_tkImageView.cropAreaCornerWidth =44;

_tkImageView.cropAreaCornerHeight =44;

_tkImageView.minSpace =30;

_tkImageView.cropAreaCornerLineColor = [UIColor whiteColor];

_tkImageView.cropAreaBorderLineColor = [UIColor whiteColor];

_tkImageView.cropAreaCornerLineWidth =6;

_tkImageView.cropAreaBorderLineWidth =1;

_tkImageView.cropAreaMidLineWidth =20;

_tkImageView.cropAreaMidLineHeight =6;

_tkImageView.cropAreaMidLineColor = [UIColor whiteColor];

_tkImageView.cropAreaCrossLineColor = [UIColor whiteColor];

_tkImageView.cropAreaCrossLineWidth =0.5;

_tkImageView.initialScaleFactor =.8f;

_tkImageView.cropAspectRatio =0;

_tkImageView.maskColor = [UIColor clearColor];

self.isClip =NO;

}

- (void)createdTool

{

UIView *editorView = [[UIView alloc] initWithFrame:CGRectMake(0, SelfHeight -120, SelfWidth,120)];

editorView.backgroundColor = [UIColor blackColor];

editorView.alpha =0.8;

[self.view addSubview:editorView];

UIButton *cancleBtn = [UIButton buttonWithType:UIButtonTypeCustom];

cancleBtn.frame = CGRectMake(((SelfWidth /3.0) -50)/2.0, (120-50)/2.0,50,50);

[cancleBtn setImage:[UIImage imageNamed:@"canclePhoto"] forState:UIControlStateNormal];

[cancleBtn addTarget:selfaction:@selector(back) forControlEvents:UIControlEventTouchUpInside];

[editorView addSubview:cancleBtn];

UIButton *clipBtn = [UIButton buttonWithType:UIButtonTypeCustom];

clipBtn.frame = CGRectMake(((SelfWidth) -50)/2.0, (120-50)/2.0,50,50);

[clipBtn setImage:[UIImage imageNamed:@"clipPhoto"] forState:UIControlStateNormal];

[clipBtn setImage:[UIImage imageNamed:@"backPhoto"] forState:UIControlStateSelected];

[clipBtn addTarget:selfaction:@selector(clip:) forControlEvents:UIControlEventTouchUpInside];

[editorView addSubview:clipBtn];

UIButton *sureBtn = [UIButton buttonWithType:UIButtonTypeCustom];

sureBtn.frame = CGRectMake(((SelfWidth/3.0) -50)/2.0+ (SelfWidth *2.0/3.0), (120-50)/2.0,50,50);

[sureBtn setImage:[UIImage imageNamed:@"surePhoto"] forState:UIControlStateNormal];

[sureBtn addTarget:selfaction:@selector(sure) forControlEvents:UIControlEventTouchUpInside];

[editorView addSubview:sureBtn];

}

- (void)back{

[selfdismissViewControllerAnimated:YEScompletion:nil];

}

- (void)clip:(UIButton *)btn{

btn.selected = !btn.selected;

self.isClip = btn.selected;

if(btn.selected ==YES) {

_tkImageView.toCropImage = [_tkImageView currentCroppedImage];

}else{

_tkImageView.toCropImage = _image;

}

- (void)sure{

//裁剪

if(self.isClip ==YES) {

UIImage *image = [_tkImageView currentCroppedImage];

if(self.isTakePhoto) {

//將圖片儲存到相簿

UIImageWriteToSavedPhotosAlbum(image,self,nil,nil);

}

if(self.delegate && [self.delegate respondsToSelector:@selector(clipPhoto:)]) {

[self.delegate clipPhoto:image];

}

}else{

if(self.delegate && [self.delegate respondsToSelector:@selector(clipPhoto:)]) {

[self.delegate clipPhoto:self.image];

}

if(self.isTakePhoto) {

//將圖片儲存到相簿

UIImageWriteToSavedPhotosAlbum(self.image,self,nil,nil);

}

[selfdismissViewControllerAnimated:YEScompletion:nil];

[self.picker dismissViewControllerAnimated:YEScompletion:nil];

[self.controller dismissViewControllerAnimated:YEScompletion:nil];

}

- (void)didReceiveMemoryWarning {

[superdidReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end

-------------

#import

typedefNS_ENUM(NSInteger, TKCropAreaCornerStyle) {

TKCropAreaCornerStyleRightAngle,

TKCropAreaCornerStyleCircle

};

@interfaceTKImageView : UIView

@property(strong,nonatomic) UIImage *toCropImage;

@property (assign, nonatomic) BOOL needScaleCrop;

@property (assign, nonatomic) BOOL showMidLines;

@property (assign, nonatomic) BOOL showCrossLines;

@property(assign,nonatomic) CGFloat cropAspectRatio;

@property(strong,nonatomic) UIColor *cropAreaBorderLineColor;

@property(assign,nonatomic) CGFloat cropAreaBorderLineWidth;

@property(strong,nonatomic) UIColor *cropAreaCornerLineColor;

@property(assign,nonatomic) CGFloat cropAreaCornerLineWidth;

@property(assign,nonatomic) CGFloat cropAreaCornerWidth;

@property(assign,nonatomic) CGFloat cropAreaCornerHeight;

@property (assign, nonatomic) CGFloat minSpace;

@property(assign,nonatomic) CGFloat cropAreaCrossLineWidth;

@property(strong,nonatomic) UIColor *cropAreaCrossLineColor;

@property(assign,nonatomic) CGFloat cropAreaMidLineWidth;

@property(assign,nonatomic) CGFloat cropAreaMidLineHeight;

@property(strong,nonatomic) UIColor *cropAreaMidLineColor;

@property(strong,nonatomic) UIColor *maskColor;

@property (assign, nonatomic) BOOL cornerBorderInImage;

@property(assign,nonatomic) CGFloat initialScaleFactor;

- (UIImage *)currentCroppedImage;

@end

6.自定義圖片剪下

相關文章