問(wèn)題環(huán)境：Xcode 8.1 + iOS SDK10.1
首先是調(diào)用之前的iOS10權(quán)根問(wèn)題厅须，具體問(wèn)題見(jiàn)：
“This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSCameraUsageDescription（NSPhotoLibraryUsageDescription） key with a string value explaining to the user how the app uses this data.”
以上問(wèn)題調(diào)用相機(jī)和調(diào)用相冊(cè)都會(huì)遇到仿畸，分別在Info.plist中添加Dictionary：
NSCameraUsageDescription（相機(jī)），
NSPhotoLibraryUsageDescription（相冊(cè)）
第二個(gè)先上代碼，我們調(diào)用相冊(cè)的通用代碼：
UIImagePickerController* _imagePickerController;
_imagePickerController = [[UIImagePickerController alloc] init];
_imagePickerController.delegate = self;
_imagePickerController.allowsEditing = YES;
_imagePickerController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
_imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
_imagePickerController.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:_imagePickerController.sourceType];
_imagePickerController.allowsEditing = YES;
[self presentViewController:_imagePickerController animated:YES completion:nil];
有一個(gè)回調(diào)方法：
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(nullable NSDictionary<NSString *,id> *)editingInfo {
}
想說(shuō)的是這個(gè)方法已經(jīng)被廢棄错沽，調(diào)用不會(huì)產(chǎn)生任務(wù)效果簿晓，剛開(kāi)始還糾結(jié)了好久；這里要說(shuō)一下廢棄的問(wèn)題：
- (void) application:(UIApplication *)application didDecodeRestorableStateWithCoder:(NSCoder *)coder NS_AVAILABLE_IOS(6_0);
- @property(nonatomic,getter=isProximitySensingEnabled) BOOL proximitySensingEnabled NS_DEPRECATED_IOS(2_0, 3_0);
這里的NS_AVAILABLE_IOS(6_0) 和 NS_DEPRECATED_IOS(2_0, 3_0) 甥捺，
NS_AVAILABEL_IOS(6_0)表示抢蚀，自IOS6.0開(kāi)始支持該方法镀层，若在IOS6.0之前的版本使用該函數(shù)镰禾，則會(huì)導(dǎo)致 Crash；
NS_DEPRECATED_IOS(2_0,3_0)表示該函數(shù)只能在IOS2.0 和 IOS3.0之間使用唱逢，是已被廢棄的函數(shù)吴侦，但并不是說(shuō)在IOS3.0之后不能使用該函數(shù)，是可以使用坞古，但也需要考慮找其他替代方法了备韧；現(xiàn)在看來(lái)，舊方法不適宜用痪枫，因?yàn)槟承┛梢蕴O(píng)果已經(jīng)不再用了织堂；（為什么不用保險(xiǎn)的呢？）
另外奶陈，還有 NS_DEPRECATED(10_6,10_9,2_0,7_0)這種寫(xiě)法易阳，為自mac10.6和ios2.0引入，在mac10.9和ios7.0被廢棄
另外吃粒，iOS默認(rèn)不添加回調(diào)的時(shí)候相冊(cè)圖片選取或者相冊(cè)中點(diǎn)取消是返回原先界面的潦俺；
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
[picker dismissViewControllerAnimated:YES completion:^{}];
NSLog(@"選擇完畢-----info:%@",info);
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
[picker dismissViewControllerAnimated:YES completion:^{}];
}
接下來(lái)就是這兩個(gè)回調(diào)了，一個(gè)選取徐勃，一個(gè)取消事示，跳回原來(lái)界面的操作需要添加，因?yàn)槿绻麑?shí)現(xiàn)了這兩個(gè)方法僻肖，就是處理自己的邏輯了肖爵；
