iOS相册图片的选取与设置

@interface PickerViewController : UIViewController<UIImagePickerControllerDelegate,UIActionSheetDelegate,UINavigationControllerDelegate>

//名字
@property (weak, nonatomic) IBOutlet UILabel *namelabel;
//头像
@property (weak, nonatomic) IBOutlet UIImageView *iconView;
//actionsheet底部弹窗
@property (nonatomic,strong) UIActionSheet *actionSheet;

- (void)viewDidLoad {
[super viewDidLoad];
self.namelabel.text = @"XXX";
self.iconView.image = [UIImage imageNamed:@"IMG_1743"];
self.iconView.layer.masksToBounds = YES;
self.iconView.layer.cornerRadius = 40;
self.iconView.userInteractionEnabled = YES;
//给头像添加点击手势
UITapGestureRecognizer *ges = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapClick)];
[self.iconView addGestureRecognizer:ges];

- (void)tapClick {
NSLog(@"打开相册");

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择图像" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照",@"从相册选取", nil];
}else {
self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择图像" delegate:self cancelButtonTitle:@"取消"destructiveButtonTitle:nil otherButtonTitles:@"从相册选择",nil];
}
self.actionSheet.tag = 1000;
[self.actionSheet showInView:self.view];

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
if (actionSheet.tag == 1000) {
NSUInteger sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// 判断是否支持相机
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
switch (buttonIndex) {
case 0:
//来源:相机
sourceType = UIImagePickerControllerSourceTypeCamera;
break;
case 1:
//来源:相册
sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
break;
case 2:
return;
}
}
else {
if (buttonIndex == 2) {
return;
} else {
sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
}
}
// 跳转到相机或相册页面
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;
imagePickerController.allowsEditing = YES;
imagePickerController.sourceType = sourceType;

[self presentViewController:imagePickerController animated:YES completion:^{

}];
}
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:^{

}];

UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
self.iconView.image = image;
//    self.namelabel.text = image.description;
}