记得添加MobileCoreServices.framework
及导入#import <MobileCoreServices/MobileCoreServices.h>
@interface PPViewController ()<UIActionSheetDelegate,UINavigationControllerDelegate, UIImagePickerControllerDelegate>
{
UIImagePickerController *_pickerController;
}
@property (weak, nonatomic) IBOutlet UIImageView *imageView;
@end
@implementation PPViewController
- (void)viewDidLoad
{
[super viewDidLoad];
_pickerController = [[UIImagePickerController alloc] init];
_pickerController.delegate = self;//设置代理
_pickerController.allowsEditing = YES;//图片可编辑（放大缩小）
}
- (IBAction)choseImage:(id)sender
{
// 判断是否有相机
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
//判断是否能摄像
if ([[UIImagePickerController availableMediaTypesForSourceType:_pickerController.sourceType] containsObject:(NSString *)kUTTypeMovie])
{
_pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie];
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"cancel" destructiveButtonTitle:nil otherButtonTitles:@"相册",@"相机",@"摄像机", nil];
sheet.tag = 2;
[sheet showInView:self.view];
}
else
{
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"cancel" destructiveButtonTitle:nil otherButtonTitles:@"相机",@"相册", nil];
sheet.tag = 1;
[sheet showInView:self.view];
}
}
else
{//模拟器
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"cancel" destructiveButtonTitle:nil otherButtonTitles:@"相册", nil];
sheet.tag = 3;
[sheet showInView:self.view];
}
}
#pragma mark- UIActionSheet的代理方法
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (actionSheet.tag == 1)
{
switch (buttonIndex)
{
case 0:
{
_pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
_pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
[self presentViewController:_pickerController animated:YES completion:nil];
}
break;
case 1:
{
_pickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
_pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
[self presentViewController:_pickerController animated:YES completion:nil];
}
break;
default:
break;
}
}
if (actionSheet.tag == 2)
{
switch (buttonIndex)
{
case 0:
{
_pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
_pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
[self presentViewController:_pickerController animated:YES completion:nil];
}
break;
case 1:
{
_pickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// _pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
[self presentViewController:_pickerController animated:YES completion:nil];
}
break;
case 2:
{
_pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
// pickController.videoQuality = UIImagePickerControllerQualityTypeLow;//可以选择图片质量
_pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie];
[self presentViewController:_pickerController animated:YES completion:nil];
}
default:
break;
}
}
if (actionSheet.tag == 3)
{
if (buttonIndex == 0)
{
_pickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// _pickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
[self presentViewController:_pickerController animated:YES completion:nil];
}
}
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSLog(@"========%@",info);//返回的值都在info里面
if ([[info objectForKey:UIImagePickerControllerMediaType] isEqualToString:(NSString *)kUTTypeMovie])
{
_imageView.image = [UIImage imageWithData:[NSData dataWithContentsOfFile:(NSString *)[[info objectForKey:UIImagePickerControllerMediaURL] path]]];
}
else
{
_imageView.image = [info objectForKey:@"UIImagePickerControllerEditedImage"];
}
[self dismissViewControllerAnimated:YES completion:nil];
}
//如果这是一个modalViewController，需要dismiss 它发了个cancel消息，必须关闭它
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[self dismissViewControllerAnimated:YES completion:nil];
}
/**
* {
UIImagePickerControllerMediaType = "public.image";
UIImagePickerControllerOriginalImage = "<UIImage: 0x7fe3a3dc2a20> size {1500, 1001} orientation 0 scale 1.000000";
UIImagePickerControllerReferenceURL = "assets-library://asset/asset.JPG?id=B6C0A21C-07C3-493D-8B44-3BA4C9981C25&ext=JPG";
}
*/
/**
* {
UIImagePickerControllerCropRect = "NSRect: {{0, 0}, {1500, 1003}}";
UIImagePickerControllerEditedImage = "<UIImage: 0x7fec5c8145b0> size {638, 426} orientation 0 scale 1.000000";
UIImagePickerControllerMediaType = "public.image";
UIImagePickerControllerOriginalImage = "<UIImage: 0x7fec5c80d4c0> size {1500, 1001} orientation 0 scale 1.000000";
UIImagePickerControllerReferenceURL = "assets-library://asset/asset.JPG?id=B6C0A21C-07C3-493D-8B44-3BA4C9981C25&ext=JPG";
}
*/
ios中关于UIImagePickerController的一些知识总结
原文：http://www.cnblogs.com/dlwj/p/4886568.html