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SelectPhotoManager.h

#import <Foundation/Foundation.h>

#import <UIKit/UIKit.h>

typedefenum {

    PhotoCamera = 0,

    PhotoAlbum,

}SelectPhotoType;

@protocol selectPhotoDelegate <NSObject>

//照片選取成功

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

//照片選取失敗

- (void)selectPhotoManagerDidError:(NSError *)error;

@end

@interface SelectPhotoManager : NSObject<UINavigationControllerDelegate,UIImagePickerControllerDelegate,UIActionSheetDelegate>

//代理物件

@property(nonatomic, weak)__weakid<selectPhotoDelegate>delegate;

//是否開啟照片編輯功能

@property

(nonatomic, assign)BOOL canEditPhoto;

//跳轉的控制器可選引數

@property(nonatomic, weak)__weakUIViewController *superVC;

//照片選取成功回撥

@property(nonatomic, strong)void (^successHandle)(SelectPhotoManager *manager, UIImage *image);

//照片選取失敗回撥

@property(nonatomic, strong)void (^errorHandle)(NSString *error);

//開始選取照片

- (void)startSelectPhotoWithImageName:(NSString *)imageName;

- (void)startSelectPhotoWithType:(SelectPhotoType )type andImageName:(NSString *)imageName;

@end

SelectPhotoManager.m  檔案

#import "SelectPhotoManager.h"

@implementation SelectPhotoManager {

//圖片名

NSString *_imageName;

}

- (instancetype)init {

self = [superinit];

if (self) {

_canEditPhoto = YES;

    }

returnself;

}

//開始選擇照片

- (void)startSelectPhotoWithImageName:(NSString *)imageName{

_imageName = imageName;

UIAlertController *alertController = [UIAlertControlleralertControllerWithTitle:@"修改我的頭像"message:nilpreferredStyle: UIAlertControllerStyleActionSheet];

UIAlertAction *cancelAction = [UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleCancelhandler:nil];

    [alertController addAction: [UIAlertActionactionWithTitle: @"拍照"style: UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

        [selfselectPhotoWithType:0];

    }]];

    [alertController addAction: [UIAlertActionactionWithTitle: @"從相簿獲取"style: UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

        [selfselectPhotoWithType:1];

    }]];

    [alertController addAction:cancelAction];

    [[selfgetCurrentVC] presentViewController:alertController animated:YEScompletion:nil];

}

//根據型別選取照片

- (void)startSelectPhotoWithType:(SelectPhotoType)type andImageName:(NSString *)imageName {

_imageName = imageName;

UIImagePickerController *ipVC = [[UIImagePickerControlleralloc] init];

//設定跳轉方式

    ipVC.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

if (_canEditPhoto) {

//設定是否可對圖片進行編輯

        ipVC.allowsEditing = YES;

    }

    ipVC.delegate = self;

if (type == PhotoCamera) {

NSLog(@"相機");

BOOL isCamera = [UIImagePickerControllerisCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear];

if (!isCamera) {

NSLog(@"沒有攝像頭");

if (_errorHandle) {

_errorHandle(@"沒有攝像頭");

            }

UIAlertController *alertController = [UIAlertControlleralertControllerWithTitle:@"提示"message:@"您的裝置不支援拍照"preferredStyle:UIAlertControllerStyleAlert];

            [alertController addAction: [UIAlertActionactionWithTitle: @"確定"style: UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

            }]];

            [[selfgetCurrentVC] presentViewController:alertController animated:YEScompletion:nil];

return ;

        }else{

            ipVC.sourceType = UIImagePickerControllerSourceTypeCamera;

        }

    }else{

NSLog(@"相簿");

        ipVC.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

    }

    [[selfgetCurrentVC] presentViewController:ipVC animated:YEScompletion:nil];

}

//獲取當前螢幕顯示的viewcontroller

- (UIViewController *)getCurrentVC {

if (_superVC) {

return_superVC;

    }

UIViewController *result = nil;

UIWindow * window = [[UIApplicationsharedApplication] keyWindow];

if (window.windowLevel != UIWindowLevelNormal)

    {

NSArray *windows = [[UIApplicationsharedApplication] windows];

for(UIWindow * tmpWin in windows)

        {

if (tmpWin.windowLevel == UIWindowLevelNormal)

            {

                window = tmpWin;

break;

            }

        }

    }

UIView *frontView = [[window subviews] objectAtIndex:0];

id nextResponder = [frontView nextResponder];

if ([nextResponder isKindOfClass:[UIViewControllerclass]]) {

        result = nextResponder;

    }else{

        result = window.rootViewController;

    }

return result;

}

#pragma mark 方法

-(void)selectPhotoWithType:(int)type {

if (type == 2) {

NSLog(@"取消");

    }else{

UIImagePickerController *ipVC = [[UIImagePickerControlleralloc] init];

//設定跳轉方式

        ipVC.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

if (_canEditPhoto) {

//設定是否可對圖片進行編輯

            ipVC.allowsEditing = YES;

        }

        ipVC.delegate = self;

if (type == 0) {

NSLog(@"相機");

BOOL isCamera = [UIImagePickerControllerisCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear];

if (!isCamera) {

NSLog(@"沒有攝像頭");

if (_errorHandle) {

_errorHandle(@"沒有攝像頭");

                }

UIAlertController *alertController = [UIAlertControlleralertControllerWithTitle:@"提示"message:@"您的裝置不支援拍照"preferredStyle:UIAlertControllerStyleAlert];

                [alertController addAction: [UIAlertActionactionWithTitle: @"確定"style: UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

                }]];

                [[selfgetCurrentVC] presentViewController:alertController animated:YEScompletion:nil];

return ;

            }else{

                ipVC.sourceType = UIImagePickerControllerSourceTypeCamera;

            }

        }else{

NSLog(@"相簿");

            ipVC.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

        }

        [[selfgetCurrentVC] presentViewController:ipVC animated:YEScompletion:nil];

    }

}

#pragma mark -----------------imagePickerController協議方法

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

NSLog(@"info = %@",info);

UIImage *image = [info objectForKey:@"UIImagePickerControllerEditedImage"];

if (image == nil) {

        image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];

    }

//圖片旋轉

if (image.imageOrientation != UIImageOrientationUp) {

//圖片旋轉

        image = [selffixOrientation:image];

    }

if (_imageName==nil || _imageName.length == 0) {

//獲取當前時間,生成圖片路徑

NSDate *date = [NSDatedate];

NSDateFormatter *formatter = [[NSDateFormatteralloc] init];

        [formatter setDateStyle:NSDateFormatterMediumStyle];

        [formatter setTimeStyle:NSDateFormatterShortStyle];

        [formatter setDateFormat:@"YYYY-MM-dd hh:mm:ss"];

NSString *dateStr = [formatter stringFromDate:date];

_imageName = [NSStringstringWithFormat:@"photo_%@.png",dateStr];

    }

    [[selfgetCurrentVC] dismissViewControllerAnimated:YEScompletion:nil];

if (_delegate && [_delegaterespondsToSelector:@selector(selectPhotoManagerDidFinishImage:)]) {

        [_delegateselectPhotoManagerDidFinishImage:image];

    }

if (_successHandle) {

_successHandle(self,image);

    }

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {

    [[selfgetCurrentVC] dismissViewControllerAnimated:YEScompletion:nil];

if (_delegate && [_delegaterespondsToSelector:@selector(selectPhotoManagerDidError:)]) {

        [_delegateselectPhotoManagerDidError:nil];

    }

if (_errorHandle) {

_errorHandle(@"撤銷");

    }

}

#pragma mark 圖片處理方法

//圖片旋轉處理

- (UIImage *)fixOrientation:(UIImage *)aImage {

CGAffineTransform transform = CGAffineTransformIdentity;

switch (aImage.imageOrientation) {

caseUIImageOrientationDown:

caseUIImageOrientationDownMirrored:

            transform = CGAffineTransformTranslate(transform, aImage.size.width, aImage.size.height);

            transform = CGAffineTransformRotate(transform, M_PI);

break;

caseUIImageOrientationLeft:

caseUIImageOrientationLeftMirrored:

            transform = CGAffineTransformTranslate(transform, aImage.size.width, 0);

            transform = CGAffineTransformRotate(transform, M_PI_2);

break;

caseUIImageOrientationRight:

caseUIImageOrientationRightMirrored:

            transform = CGAffineTransformTranslate(transform, 0, aImage.size.height);

            transform = CGAffineTransformRotate(transform, -M_PI_2);

break;

default:

break;

    }

switch (aImage.imageOrientation) {

caseUIImageOrientationUpMirrored:

caseUIImageOrientationDownMirrored:

            transform = CGAffineTransformTranslate(transform, aImage.size.width, 0);

            transform = CGAffineTransformScale(transform, -1, 1);

break;

caseUIImageOrientationLeftMirrored:

caseUIImageOrientationRightMirrored:

            transform = CGAffineTransformTranslate(transform, aImage.size.height, 0);

            transform = CGAffineTransformScale(transform, -1, 1);

break;

default:

break;

    }

// Now we draw the underlying CGImage into a new context, applying the transform

// calculated above.

CGContextRef ctx = CGBitmapContextCreate(NULL, aImage.size.width, aImage.size.height,

CGImageGetBitsPerComponent(aImage.CGImage), 0,

CGImageGetColorSpace(aImage.CGImage),

CGImageGetBitmapInfo(aImage.CGImage));

CGContextConcatCTM(ctx, transform);

switch (aImage.imageOrientation) {

caseUIImageOrientationLeft:

caseUIImageOrientationLeftMirrored:

caseUIImageOrientationRight:

caseUIImageOrientationRightMirrored:

// Grr...

CGContextDrawImage(ctx, CGRectMake(0,0,aImage.size.height,aImage.size.width), aImage.CGImage);

break;

default:

CGContextDrawImage(ctx, CGRectMake(0,0,aImage.size.width,aImage.size.height), aImage.CGImage);

break;

    }

// And now we just create a new UIImage from the drawing context

CGImageRef cgimg = CGBitmapContextCreateImage(ctx);

UIImage *img = [UIImageimageWithCGImage:cgimg];

CGContextRelease(ctx);

CGImageRelease(cgimg);

return img;

}

@end

在controller裡實現下方法即可

//頭像點選事件

-(void)tapClick:(UITapGestureRecognizer *)recognizer{

if (!_photoManager) {

_photoManager =[[SelectPhotoManageralloc]init];

    }

    [_photoManagerstartSelectPhotoWithImageName:@"選擇頭像"];

__weaktypeof(self)mySelf=self;

//選取照片成功

_photoManager.successHandle=^(SelectPhotoManager *manager,UIImage *image){

        mySelf.headerImage.image = image;

//儲存到本地

NSData *data = UIImagePNGRepresentation(image);

        [[NSUserDefaultsstandardUserDefaults] setObject:data forKey:@"headerImage"];

    };

}

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