自定義身份證識別相機UI
阿新 • • 發佈：2019-01-14
現在很多的專案都有身份證識別的環節，而系統的相機有時不能滿足我們的需要，身份證的識別，有時需要對圖片銳化，灰值，這時對於獲取圖片的尺寸 有為重要，網上很多廠商的SDK 都會把UI這個快 封裝起來。我自定義一套希望對你們有用。
在建一個類
建立一個工程這裡就不多說了 一樣的套路
建立一個類
ImagePickerMamanger.h
#import <Foundation/Foundation.h> @interface ImagePickerMamanger : NSObject + (ImagePickerMamanger *)sharedInstance; #pragma mark - 照片 /** * @brief 從UIActionSheet中選擇 * * @param vc presentVC * @param block 成功回撥 * @param cancelBlock 取消回撥 */ - (void)cameraSheetInController:(UIViewController *)vc sourceView:(UIView *)view handler:(void (^)(UIImage *image))block cancelHandler:(void (^)(void))cancelBlock; @end
ImagePickerMamanger.m
#define IS_IOS_8_OR_LATER [[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0
//螢幕寬
#define IMAGEPICKER_SCREEN_WIDTH [[UIScreen mainScreen] bounds].size.width
//螢幕高
#define IMAGEPICKER_SCREEN_HEIGHT [[UIScreen mainScreen] bounds].size.height
#define IMAGEPICKER_SIZE 300
@interface ImagePickerMamanger()<UIImagePickerControllerDelegate, UINavigationControllerDelegate,UIActionSheetDelegate>
@property(nonatomic, strong) UIViewController *vc;
@property(nonatomic, strong) UIImagePickerController *imagePickerController;
@property(nonatomic,strong)UIPopoverController * popoverController;
@property(nonatomic, strong) void (^resultBlock)(UIImage *image);
@property(nonatomic, strong) void (^cancelBlock)(void);
@end
@implementation ImagePickerMamanger
static ImagePickerMamanger *sharedInstance = nil;
#pragma mark Singleton Model
+ (ImagePickerMamanger *)sharedInstance
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedInstance = [[ImagePickerMamanger alloc]init];
sharedInstance.imagePickerController = [[UIImagePickerController alloc]init];
sharedInstance.imagePickerController.delegate = sharedInstance;
if (IS_IOS_8_OR_LATER) {
sharedInstance.imagePickerController.modalPresentationStyle = UIModalPresentationOverFullScreen;
}
});
return sharedInstance;
}
#pragma mark - public methods
- (void)cameraSheetInController:(UIViewController *)vc sourceView:(UIView *)view handler:(void (^)(UIImage *))block cancelHandler:(void (^)(void))cancelBlock{
self.vc = vc;
self.resultBlock = block;
self.cancelBlock = cancelBlock;
if (IS_IOS_8_OR_LATER) {
UIAlertController * alterController = [UIAlertController alertControllerWithTitle:@"選擇影象" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
// 判斷是否支援相機
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
[alterController dismissViewControllerAnimated:YES completion:^(void){
self.cancelBlock();
}];
}];
UIAlertAction *deleteAction = [UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
[self openCamera:UIImagePickerControllerSourceTypeCamera];
}];
UIAlertAction *archiveAction = [UIAlertAction actionWithTitle:@"相簿選取" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
[self openCamera:UIImagePickerControllerSourceTypePhotoLibrary];
}];
[alterController addAction:deleteAction];
[alterController addAction:archiveAction];
[alterController addAction:cancelAction];
}
else {
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
[alterController dismissViewControllerAnimated:YES completion:^(void){
self.cancelBlock();
}];
}];
UIAlertAction *archiveAction = [UIAlertAction actionWithTitle:@"相簿選取" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
[self openCamera:UIImagePickerControllerSourceTypePhotoLibrary];
}];
[alterController addAction:archiveAction];
[alterController addAction:cancelAction];
}
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){
alterController.modalPresentationStyle = UIModalPresentationPopover;
alterController.popoverPresentationController.sourceView = view;
alterController.popoverPresentationController.sourceRect = view.bounds;
}
[self.vc presentViewController:alterController animated:YES completion:nil];
}
else{
// 判斷是否支援相機
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"從相簿選擇",@"拍照", nil];
sheet.tag =100;
[sheet showInView:vc.view];
}else{
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"從相簿選擇", nil];
sheet.tag =101;
[sheet showInView:vc.view];
}
}
}
#pragma mark - UIImagePickerControllerDelegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo {
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// 照片
[picker dismissViewControllerAnimated:YES completion:^{}];
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
self.resultBlock(image);
[self.vc setNeedsStatusBarAppearanceUpdate];
};
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
self.cancelBlock();
[self.vc setNeedsStatusBarAppearanceUpdate];
[self.vc dismissViewControllerAnimated:YES completion:^{
}];
}
-(void)imageWithPhotoInController:(UIViewController *)vc sourceView:(UIView *)view handler:(void (^)(UIImage *))block cancelHandler:(void (^)(void))cancelBlock{
self.vc = vc;
self.resultBlock = block;
self.cancelBlock = cancelBlock;
[self openCamera:UIImagePickerControllerSourceTypePhotoLibrary];
}
-(void)openCamera:(UIImagePickerControllerSourceType) souceType{
// 跳轉到相機
self.imagePickerController.sourceType = souceType;
dispatch_async(dispatch_get_main_queue(), ^{
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
if (IS_IOS_8_OR_LATER) {
[self.vc presentViewController:self.imagePickerController animated:YES completion:^{}];
}else{
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:self.imagePickerController];
self.popoverController = popover;
[self.popoverController presentPopoverFromRect:CGRectMake((IMAGEPICKER_SCREEN_WIDTH - IMAGEPICKER_SIZE)/2, (IMAGEPICKER_SCREEN_HEIGHT - IMAGEPICKER_SIZE)/2, IMAGEPICKER_SIZE, IMAGEPICKER_SIZE) inView:self.vc.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
}
else{
[self.vc presentViewController:self.imagePickerController animated:YES completion:^{}];
}
[self performSelector:@selector(delayHideStatusBar) withObject:nil afterDelay:0.5f];
});
}
-(void)delayHideStatusBar{
[self.vc setNeedsStatusBarAppearanceUpdate];
}
#pragma mark - UIActionSheetDelegate
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
if (actionSheet.tag == 101) {
if (buttonIndex == 0) {
// 跳轉到相機
[self openCamera:UIImagePickerControllerSourceTypePhotoLibrary];
}
else if (buttonIndex == 1) {
// 取消
[self.vc dismissViewControllerAnimated:YES completion:^{
self.cancelBlock();
}];
}
}else{
if (buttonIndex == 0) {
// 跳轉到相機
[self openCamera:UIImagePickerControllerSourceTypePhotoLibrary];
}
else if (buttonIndex == 1) {
// 跳轉到相簿頁面
[self openCamera:UIImagePickerControllerSourceTypeCamera];
}
else if (buttonIndex == 2) {
// 取消
[self.vc dismissViewControllerAnimated:YES completion:^{
self.cancelBlock();
}];
}
}
}
@end在建一個類
CWPhotoController.h
#import <UIKit/UIKit.h> @protocol CWPhotoControllerDelegate <NSObject> - (void)cwAutoTakePhoto:(UIImage *)image; @end @interface CWPhotoGraphController : UIViewController @property(nonatomic,assign)BOOL isFront; @property(nonatomic,assign)id<CWPhotoControllerDelegate> delegate; @end
CWPhotoGraphController.m
#import "CWPhotoGraphController.h"
#import <AVFoundation/AVFoundation.h>
@interface CWPhotoGraphController ()<AVCaptureMetadataOutputObjectsDelegate,UIAlertViewDelegate>
{
UILabel * label;
UIImageView * imageView;
CGRect idCardRect;
UIImageView * _focusView;
}
//捕獲裝置，通常是前置攝像頭，後置攝像頭，麥克風（音訊輸入）
@property(nonatomic)AVCaptureDevice *device;
//AVCaptureDeviceInput 代表輸入裝置，他使用AVCaptureDevice 來初始化
@property(nonatomic)AVCaptureDeviceInput *input;
//當啟動攝像頭開始捕獲輸入
@property(nonatomic)AVCaptureMetadataOutput *output;
@property (nonatomic)AVCaptureStillImageOutput *ImageOutPut;
//session：由他把輸入輸出結合在一起，並開始啟動捕獲裝置（攝像頭）
@property(nonatomic)AVCaptureSession *session;
//影象預覽層，實時顯示捕獲的影象
@property(nonatomic)AVCaptureVideoPreviewLayer *previewLayer;
@property (nonatomic)UIButton *flashButton;
@property (nonatomic)BOOL isflashOn;
@property(nonatomic,strong)UIImage * image;
@end
#define kScreenWidth [UIScreen mainScreen].bounds.size.width
#define kScreenHeight [UIScreen mainScreen].bounds.size.height
#define HeadViewHight 40
#define IDCardORigionY 30
#define ClearBoxWidth (kScreenWidth- HeadViewHight - 20)
#define ClearBoxHeight (kScreenHeight- IDCardORigionY - 100)
#define photoButtonWidth 60
@implementation CWPhotoGraphController
#pragma mark
#pragma mark----------- viewWillAppear viewWillAppear
-(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
if (self.navigationController != nil) {
self.navigationController.navigationBarHidden = YES;
}
}
#pragma mark
#pragma mark----------- viewDidLoad viewDidLoad
- (void)viewDidLoad {
[super viewDidLoad];
_focusView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 60, 80)];
_focusView.backgroundColor = [UIColor clearColor];
_focusView.image = [UIImage imageNamed:@"focs"];
[self.view addSubview:_focusView];
_focusView.hidden = YES;
//_isFront = NO;
/**
* @brief 相機許可權
*/
BOOL canOpenCamera = [self canUserCamear];
if (canOpenCamera) {
//自定義相機
[self customCamera];
//自定義相機顯示View
[self custCameraView];
}else{
return;
}
}
#pragma mark
#pragma mark ------------ canUserCamear 檢查相機許可權
- (BOOL)canUserCamear{
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (authStatus == AVAuthorizationStatusDenied) {
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"請開啟相機許可權" message:@"設定-隱私-相機" delegate:self cancelButtonTitle:@"確定" otherButtonTitles:@"取消", nil];
alertView.tag = 100;
[alertView show];
return NO;
}
else{
return YES;
}
return YES;
}
#pragma mark
#pragma mark ------------ clickedButtonAtIndex alterView代理方法
/**
* @brief alterView代理方法
*
* @param alertView alertView
* @param buttonIndex 按鈕索引
*/
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex == 0 && alertView.tag == 100) {
NSURL * url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
if([[UIApplication sharedApplication] canOpenURL:url]) {
[[UIApplication sharedApplication] openURL:url];
}
}
}
#pragma mark
#pragma mark----------- custCameraView 相機介面
/**
* @brief 相機介面
*/
-(void)custCameraView{
/**
半透明背景
*/
imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)];
[self.view addSubview:imageView];
imageView.backgroundColor = [UIColor clearColor];
imageView.userInteractionEnabled = YES;
/**
身份證對齊框
*/
idCardRect = CGRectMake(HeadViewHight, IDCardORigionY, ClearBoxWidth, ClearBoxHeight);
if(IS_IPAD){
idCardRect = CGRectMake(100, 100, (kScreenWidth- 220), (kScreenHeight- 300));
}
/**
畫中間透明周圍半透明的圖
*/
UIImage * image = [self drawImage:imageView.frame AndClearRect:idCardRect];
imageView.image = image;
UIImageView * centerImageView = [[UIImageView alloc]initWithFrame:idCardRect];
centerImageView.backgroundColor = [UIColor clearColor];
centerImageView.userInteractionEnabled = YES;
//身份證正反面圖
if (self.isFront) {
centerImageView.image = [UIImage imageNamed:@"frontBox"];
}else{
centerImageView.image = [UIImage imageNamed:@"backBox"];
}
[self.view addSubview:centerImageView];
/**
文字提示Label
*/
if (IS_IPAD) {
label = [[UILabel alloc]initWithFrame:CGRectMake(-(kScreenWidth-80)/2, (kScreenHeight-100)/2, kScreenHeight-200, 40)];
}else{
if (kScreenHeight<568) {
label = [[UILabel alloc]initWithFrame:CGRectMake(-125, 220,kScreenHeight-200, 40)];
}else if(kScreenHeight == 667){
label = [[UILabel alloc]initWithFrame:CGRectMake(-210, 250, kScreenHeight-200, 40)];
}else if(kScreenHeight >= 736){
label = [[UILabel alloc]initWithFrame:CGRectMake(-245, 280, kScreenHeight-200, 40)];
}else{
label = [[UILabel alloc]initWithFrame:CGRectMake(-165, 230, kScreenHeight-200, 40)];
}
}
label.textAlignment = NSTextAlignmentCenter;
label.backgroundColor = [UIColor clearColor];
label.textColor = [UIColor whiteColor];
label.font =[UIFont boldSystemFontOfSize:17.f];
label.text = @"請橫握手機拍照,並將身份證置於框內";
//順時針旋轉90度
label.transform = CGAffineTransformMakeRotation( M_PI/2 );
[self.view addSubview:label];
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(focusGesture:)];
[centerImageView addGestureRecognizer:tapGesture];
/**
* @brief 拍照按鈕
*/
UIButton * photoButton = [UIButton buttonWithType:UIButtonTypeCustom];
photoButton.frame = CGRectMake((kScreenWidth-photoButtonWidth)/2+20, (kScreenHeight-photoButtonWidth-20), photoButtonWidth, photoButtonWidth);
[photoButton setImage:[UIImage imageNamed:@"paizhao1"] forState:UIControlStateNormal];
[self.view addSubview:photoButton];
[self.view bringSubviewToFront:photoButton];
[photoButton addTarget:self action:@selector(takePhoto) forControlEvents:UIControlEventTouchUpInside];
/**
* @brief 返回按鈕
*/
UIButton * backButton = [UIButton buttonWithType:UIButtonTypeCustom];
backButton.frame = CGRectMake(20, (kScreenHeight-photoButtonWidth-20), 60, 60);
[backButton setImage:[UIImage imageNamed:@"fanhui1"] forState:UIControlStateNormal];
[self.view addSubview:backButton];
[backButton addTarget:self action:@selector(dismissViewController) forControlEvents:UIControlEventTouchUpInside];
self.flashButton = [UIButton buttonWithType:UIButtonTypeCustom];
self.flashButton.frame = CGRectMake(kScreenWidth-50, (kScreenHeight-photoButtonWidth-20), 30, 30);
[ self.flashButton setImage:[UIImage imageNamed:@"camera-flash-off"] forState:UIControlStateNormal];
[self.flashButton addTarget:self action:@selector(FlashOn) forControlEvents:UIControlEventTouchUpInside];
//[self.view addSubview:self.flashButton];
}
- (void)focusGesture:(UITapGestureRecognizer*)gesture{
CGPoint point = [gesture locationInView:gesture.view];
[self focusAtPoint:point];
}
#pragma mark
#pragma mark----------- customCamera 自定義相機
/**
* @brief 自定義相機
*/
- (void)customCamera{
self.view.backgroundColor = [UIColor whiteColor];
//使用AVMediaTypeVideo 指明self.device代表視訊，預設使用後置攝像頭進行初始化
self.device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
//使用裝置初始化輸入
self.input = [[AVCaptureDeviceInput alloc]initWithDevice:self.device error:nil];
//生成輸出物件
self.output = [[AVCaptureMetadataOutput alloc]init];
self.ImageOutPut = [[AVCaptureStillImageOutput alloc] init];
NSDictionary *outputSettings = [NSDictionary dictionaryWithObjectsAndKeys:AVVideoCodecJPEG, AVVideoCodecKey, nil];
self.ImageOutPut.outputSettings = outputSettings;
//生成會話，用來結合輸入輸出
self.session = [[AVCaptureSession alloc]init];
if ([self.session canSetSessionPreset:AVCaptureSessionPreset1280x720]) {
self.session.sessionPreset = AVCaptureSessionPreset1280x720;
}
if ([self.session canAddInput:self.input]) {
[self.session addInput:self.input];
}
if ([self.session canAddOutput:self.ImageOutPut]) {
[self.session addOutput:self.ImageOutPut];
}
//使用self.session，初始化預覽層，self.session負責驅動input進行資訊的採集，layer負責把影象渲染顯示
self.previewLayer = [[AVCaptureVideoPreviewLayer alloc]initWithSession:self.session];
self.previewLayer.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight);
self.previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
[self.view.layer addSublayer:self.previewLayer];
//開始啟動
[self.session startRunning];
if ([_device lockForConfiguration:nil]) {
if ([_device isFlashModeSupported:AVCaptureFlashModeAuto]) {
[_device setFlashMode:AVCaptureFlashModeAuto];
}
//自動白平衡
if ([_device isWhiteBalanceModeSupported:AVCaptureWhiteBalanceModeAutoWhiteBalance]) {
[_device setWhiteBalanceMode:AVCaptureWhiteBalanceModeAutoWhiteBalance];
}
[_device unlockForConfiguration];
}
AVCaptureConnection * _videoConnection = [self.output connectionWithMediaType:AVMediaTypeVideo];
UIDeviceOrientation _camraOrientaion = [[UIDevice currentDevice] orientation];
if (_videoConnection.supportsVideoOrientation ) {
switch (_camraOrientaion) {
case UIDeviceOrientationPortrait:
_videoConnection.videoOrientation = AVCaptureVideoOrientationPortrait;
break;
case UIDeviceOrientationPortraitUpsideDown:
_videoConnection.videoOrientation = AVCaptureVideoOrientationPortraitUpsideDown;
break;
case UIDeviceOrientationLandscapeLeft:
_videoConnection.videoOrientation = AVCaptureVideoOrientationLandscapeLeft;
break;
case UIDeviceOrientationLandscapeRight:
_videoConnection.videoOrientation = AVCaptureVideoOrientationLandscapeRight;
break;
default:
break;
}
}
}
#pragma mark
#pragma mark----------- cameraWithPosition 獲取相機裝置
/**
* @brief 獲取相機
*
* @param position 相機型別、前置還是後置相機
*
* @return 相機device
*/
- (AVCaptureDevice *)cameraWithPosition:(AVCaptureDevicePosition)position{
NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
for ( AVCaptureDevice *device in devices )
if ( device.position == position ) return device;
return nil;
}
#pragma mark
#pragma mark----------- FlashOn 開啟或者關閉閃光燈
/**
* @brief 開啟或者關閉閃光燈
*/
- (void)FlashOn{
if ([_device lockForConfiguration:nil]) {
/**
* @brief 關閉閃光燈
*/
if (_isflashOn) {
if ([_device isFlashModeSupported:AVCaptureFlashModeOff]) {
[_device setFlashMode:AVCaptureFlashModeOff];
_isflashOn = NO;
[_flashButton setImage:[UIImage imageNamed:@"camera-flash-off"] forState:UIControlStateNormal];
}
}else{
/**
* @brief 開啟閃光燈
*/
if ([_device isFlashModeSupported:AVCaptureFlashModeOn]) {
[_device setFlashMode:AVCaptureFlashModeOn];
_isflashOn = YES;
[_flashButton setImage:[UIImage imageNamed:@"camera-flash-on"] forState:UIControlStateNormal];
}
}
[_device unlockForConfiguration];
}
}
#pragma mark
#pragma mark----------- focusAtPoint 相機對焦
- (void)focusAtPoint:(CGPoint)point{
CGSize size = self.view.bounds.size;
// CGPoint point = CGPointMake(kScreenWidth/2, kScreenHeight/2);
CGPoint focusPoint = CGPointMake( point.y /size.height ,1-point.x/size.width );
NSError *error;
if ([self.device lockForConfiguration:&error]) {
if ([self.device isFocusModeSupported:AVCaptureFocusModeAutoFocus]) {
[self.device setFocusPointOfInterest:focusPoint];
[self.device setFocusMode:AVCaptureFocusModeAutoFocus];
}
if ([self.device isExposureModeSupported:AVCaptureExposureModeAutoExpose ]) {
[self.device setExposurePointOfInterest:focusPoint];
[self.device setExposureMode:AVCaptureExposureModeAutoExpose];
}
_focusView.center = point;
_focusView.hidden = NO;
[self.view bringSubviewToFront:_focusView];
[UIView animateWithDuration:0.3 animations:^{
_focusView.transform = CGAffineTransformMakeScale(1.1, 1.1);
}completion:^(BOOL finished) {
[UIView animateWithDuration:0.5 animations:^{
_focusView.transform = CGAffineTransformIdentity;
} completion:^(BOOL finished) {
_focusView.hidden = YES;
}];
}];
[self.device unlockForConfiguration];
}
}
#pragma mark
#pragma mark--------------- takePhoto 拍攝照片
- (void)takePhoto
{
AVCaptureConnection * videoConnection = [self.ImageOutPut connectionWithMediaType:AVMediaTypeVideo];
if (!videoConnection) {
NSLog(@"take photo failed!");
return;
}
[self.ImageOutPut captureStillImageAsynchronouslyFromConnection:videoConnection completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error) {
if (imageDataSampleBuffer == NULL) {
return;
}
NSData * imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageDataSampleBuffer];
UIImage * image = [UIImage imageWithData:imageData];
NSInteger card= [[CloudwalkFaceSDK shareInstance] cwIDCardInit:AuthCodeString];
[self sendPhotoControllerDelegate:image];相關推薦
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