ios照片获取、拍照功能

////  HYBPhotoPickerManager.h//  ehui////  Created by 黄仪标 on 14/11/26.//  Copyright (c) 2014年 黄仪标. All rights reserved.//#import <Foundation/Foundation.h>/*! * @brief 照片获取或者拍照功能管理器 * @author huangyibiao */@interface HYBPhotoPickerManager : NSObject + (HYBPhotoPickerManager *)shared;/*! * @brief 选择图片或者拍照完成选择使用拍照的图片后，会调用此block * @param image 选择的图片或者拍照后选择使用的图片 */typedef void (^HYBPickerCompelitionBlock)(UIImage *image);/*! * @brief 用户点击取消时的回调block */typedef void (^HYBPickerCancelBlock)();/*! * @brief 此方法为调起选择图片或者拍照的入口，当选择图片或者拍照后选择使用图片后，回调completion， *        当用户点击取消后，回调cancelBlock * @param inView UIActionSheet呈现到inView这个视图上 * @param fromController 用于呈现UIImagePickerController的控制器 * @param completion 当选择图片或者拍照后选择使用图片后，回调completion * @param cancelBlock 当用户点击取消后，回调cancelBlock */- (void)showActionSheetInView:(UIView *)inView               fromController:(UIViewController *)fromController                   completion:(HYBPickerCompelitionBlock)completion                  cancelBlock:(HYBPickerCancelBlock)cancelBlock;@end

////  HYBPhotoPickerManager.m//  ehui////  Created by 黄仪标 on 14/11/26.//  Copyright (c) 2014年 黄仪标. All rights reserved.//#import "HYBPhotoPickerManager.h"#import "UIImagePickerController+Photo.h"#import "UIImage+DSResizeAndRound.h"@interface HYBPhotoPickerManager () <UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIActionSheetDelegate>@property (nonatomic, weak)     UIViewController          *fromController;@property (nonatomic, copy)     HYBPickerCompelitionBlock completion;@property (nonatomic, copy)     HYBPickerCancelBlock      cancelBlock;@end@implementation HYBPhotoPickerManager+ (HYBPhotoPickerManager *)shared {  static HYBPhotoPickerManager *sharedObject = nil;  static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{    if (!sharedObject) {      sharedObject = [[[self class] alloc] init];    }  });    return sharedObject;}- (void)showActionSheetInView:(UIView *)inView               fromController:(UIViewController *)fromController                   completion:(HYBPickerCompelitionBlock)completion                  cancelBlock:(HYBPickerCancelBlock)cancelBlock {  self.completion = [completion copy];  self.cancelBlock = [cancelBlock copy];  self.fromController = fromController;    dispatch_async(kGlobalThread, ^{    UIActionSheet *actionSheet = nil;    if ([UIImagePickerController isCameraAvailable]) {      actionSheet  = [[UIActionSheet alloc] initWithTitle:nil                                                 delegate:(id<UIActionSheetDelegate>)self                                        cancelButtonTitle:@"取消"                                   destructiveButtonTitle:nil                                        otherButtonTitles:@"从相册选择", @"拍照上传", nil];    } else {      actionSheet = [[UIActionSheet alloc] initWithTitle:nil                                                delegate:(id<UIActionSheetDelegate>)self                                       cancelButtonTitle:@"取消"                                  destructiveButtonTitle:nil                                       otherButtonTitles:@"从相册选择", nil];    }        dispatch_async(kMainThread, ^{      [actionSheet showInView:inView];    });  });    return;}#pragma mark - UIActionSheetDelegate- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {  if (buttonIndex == 0) { // 从相册选择    if ([UIImagePickerController isPhotoLibraryAvailable]) {      UIImagePickerController *picker = [[UIImagePickerController alloc] init];      picker.delegate = self;      picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;      picker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType];            if (kIsIOS7OrLater) {        picker.navigationBar.barTintColor = self.fromController.navigationController.navigationBar.barTintColor;      }      // 设置导航默认标题的颜色及字体大小      picker.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName: [UIColor whiteColor],                                                   NSFontAttributeName : [UIFont boldSystemFontOfSize:18]};      [self.fromController presentViewController:picker animated:YES completion:nil];    }  } else if (buttonIndex == 1) { // 拍照    if ([UIImagePickerController canTakePhoto]) {      UIImagePickerController *picker = [[UIImagePickerController alloc] init];      picker.delegate = self;      picker.sourceType = UIImagePickerControllerSourceTypeCamera;      picker.delegate = self;      if (kIsIOS7OrLater) {        picker.navigationBar.barTintColor = self.fromController.navigationController.navigationBar.barTintColor;      }      // 设置导航默认标题的颜色及字体大小      picker.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName: [UIColor whiteColor],                                                   NSFontAttributeName : [UIFont boldSystemFontOfSize:18]};      [self.fromController presentViewController:picker animated:YES completion:nil];    }  }  return;}#pragma mark - UIImagePickerControllerDelegate// 选择了图片或者拍照了- (void)imagePickerController:(UIImagePickerController *)aPicker didFinishPickingMediaWithInfo:(NSDictionary *)info {  [aPicker dismissViewControllerAnimated:YES completion:nil];  __block UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];    if (image && self.completion) {    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];    [self.fromController setNeedsStatusBarAppearanceUpdate];        dispatch_async(kGlobalThread, ^{      image = [image imageResizedToSize:CGSizeMake(kScreenWidth / 2.0, kScreenHeight / 2.0)];      DDLogVerbose(@"image size : %@", NSStringFromCGSize(image.size));            dispatch_async(kMainThread, ^{        self.completion(image);      });    });  }  return;}// 取消- (void)imagePickerControllerDidCancel:(UIImagePickerController *)aPicker {  [aPicker dismissViewControllerAnimated:YES completion:nil];    if (self.cancelBlock) {    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];    [self.fromController setNeedsStatusBarAppearanceUpdate];        self.cancelBlock();  }  return;}@end