ios照片获取，拍照功能

1. //
2. //  HYBPhotoPickerManager.h
3. //  ehui
4. //
5. //  Created by 黄仪标 on 14/11/26.
6. //  Copyright (c) 2014年 黄仪标. All rights reserved.
7. //
8. #import <Foundation/Foundation.h>
9. /*!
10. * @brief 照片获取或者拍照功能管理器
11. * @author huangyibiao
12. */
13. @interface HYBPhotoPickerManager : NSObject
14. + (HYBPhotoPickerManager *)shared;
15. /*!
16. * @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
17. * @param image 选择的图片或者拍照后选择使用的图片
18. */
19. typedef void (^HYBPickerCompelitionBlock)(UIImage *image);
20. /*!
21. * @brief 用户点击取消时的回调block
22. */
23. typedef void (^HYBPickerCancelBlock)();
24. /*!
25. * @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，
26. *        当用户点击取消后，回调cancelBlock
27. * @param inView UIActionSheet呈现到inView这个视图上
28. * @param fromController 用于呈现UIImagePickerController的控制器
29. * @param completion 当选择图片或者拍照后选择使用图片后，回调completion
30. * @param cancelBlock 当用户点击取消后，回调cancelBlock
31. */
32. - (void)showActionSheetInView:(UIView *)inView
33. fromController:(UIViewController *)fromController
34. completion:(HYBPickerCompelitionBlock)completion
35. cancelBlock:(HYBPickerCancelBlock)cancelBlock;
36. @end

1. //
2. //  HYBPhotoPickerManager.m
3. //  ehui
4. //
5. //  Created by 黄仪标 on 14/11/26.
6. //  Copyright (c) 2014年 黄仪标. All rights reserved.
7. //
8. #import "HYBPhotoPickerManager.h"
9. #import "UIImagePickerController+Photo.h"
10. #import "UIImage+DSResizeAndRound.h"
11. @interface HYBPhotoPickerManager () <UIImagePickerControllerDelegate,
12. UINavigationControllerDelegate,
13. UIActionSheetDelegate>
14. @property (nonatomic, weak)     UIViewController          *fromController;
15. @property (nonatomic, copy)     HYBPickerCompelitionBlock completion;
16. @property (nonatomic, copy)     HYBPickerCancelBlock      cancelBlock;
17. @end
18. @implementation HYBPhotoPickerManager
19. + (HYBPhotoPickerManager *)shared {
20. static HYBPhotoPickerManager *sharedObject = nil;
21. static dispatch_once_t onceToken;
22. dispatch_once(&onceToken, ^{
23. if (!sharedObject) {
24. sharedObject = [[[self class] alloc] init];
25. }
26. });
27. return sharedObject;
28. }
29. - (void)showActionSheetInView:(UIView *)inView
30. fromController:(UIViewController *)fromController
31. completion:(HYBPickerCompelitionBlock)completion
32. cancelBlock:(HYBPickerCancelBlock)cancelBlock {
33. self.completion = [completion copy];
34. self.cancelBlock = [cancelBlock copy];
35. self.fromController = fromController;
36. dispatch_async(kGlobalThread, ^{
37. UIActionSheet *actionSheet = nil;
38. if ([UIImagePickerController isCameraAvailable]) {
39. actionSheet  = [[UIActionSheet alloc] initWithTitle:nil
40. delegate:(id<UIActionSheetDelegate>)self
41. cancelButtonTitle:@"取消"
42. destructiveButtonTitle:nil
43. otherButtonTitles:@"从相册选择", @"拍照上传", nil nil];
44. } else {
45. actionSheet = [[UIActionSheet alloc] initWithTitle:nil
46. delegate:(id<UIActionSheetDelegate>)self
47. cancelButtonTitle:@"取消"
48. destructiveButtonTitle:nil
49. otherButtonTitles:@"从相册选择", nil nil];
50. }
51. dispatch_async(kMainThread, ^{
52. [actionSheet showInView:inView];
53. });
54. });
55. return;
56. }
57. #pragma mark - UIActionSheetDelegate
58. - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
59. if (buttonIndex == 0) { // 从相册选择
60. if ([UIImagePickerController isPhotoLibraryAvailable]) {
61. UIImagePickerController *picker = [[UIImagePickerController alloc] init];
62. picker.delegate = self;
63. picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
64. picker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType];
65. if (kIsIOS7OrLater) {
66. picker.navigationBar.barTintColor = self.fromController.navigationController.navigationBar.barTintColor;
67. }
68. // 设置导航默认标题的颜色及字体大小
69. picker.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName: [UIColor whiteColor],
70. NSFontAttributeName : [UIFont boldSystemFontOfSize:18]};
71. [self.fromController presentViewController:picker animated:YES completion:nil];
72. }
73. } else if (buttonIndex == 1) { // 拍照
74. if ([UIImagePickerController canTakePhoto]) {
75. UIImagePickerController *picker = [[UIImagePickerController alloc] init];
76. picker.delegate = self;
77. picker.sourceType = UIImagePickerControllerSourceTypeCamera;
78. picker.delegate = self;
79. if (kIsIOS7OrLater) {
80. picker.navigationBar.barTintColor = self.fromController.navigationController.navigationBar.barTintColor;
81. }
82. // 设置导航默认标题的颜色及字体大小
83. picker.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName: [UIColor whiteColor],
84. NSFontAttributeName : [UIFont boldSystemFontOfSize:18]};
85. [self.fromController presentViewController:picker animated:YES completion:nil];
86. }
87. }
88. return;
89. }
90. #pragma mark - UIImagePickerControllerDelegate
91. // 选择了图片或者拍照了
92. - (void)imagePickerController:(UIImagePickerController *)aPicker didFinishPickingMediaWithInfo:(NSDictionary *)info {
93. [aPicker dismissViewControllerAnimated:YES completion:nil];
94. __block UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];
95. if (image && self.completion) {
96. [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
97. [self.fromController setNeedsStatusBarAppearanceUpdate];
98. dispatch_async(kGlobalThread, ^{
99. image = [image imageResizedToSize:CGSizeMake(kScreenWidth / 2.0, kScreenHeight / 2.0)];
100. DDLogVerbose(@"image size : %@", NSStringFromCGSize(image.size));
101. dispatch_async(kMainThread, ^{
102. self.completion(image);
103. });
104. });
105. }
106. return;
107. }
108. // 取消
109. - (void)imagePickerControllerDidCancel:(UIImagePickerController *)aPicker {
110. [aPicker dismissViewControllerAnimated:YES completion:nil];
111. if (self.cancelBlock) {
112. [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
113. [self.fromController setNeedsStatusBarAppearanceUpdate];
114. self.cancelBlock();
115. }
116. return;
117. }
118. @end