调用系统照片库并显示位置信息

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

if(picker.sourceType == UIImagePickerControllerSourceTypePhotoLibrary){

//UIImage *image= [info objectForKey:UIImagePickerControllerOriginalImage];

NSURL *assetURL = [info objectForKey:UIImagePickerControllerReferenceURL];

ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];

[library assetForURL:assetURL

resultBlock:^(ALAsset *asset) {

NSDictionary* imageMetadata = [[NSMutableDictionary alloc] initWithDictionary:asset.defaultRepresentation.metadata];

NSDictionary *GPSDict=[imageMetadata objectForKey:(NSString*)kCGImagePropertyGPSDictionary];

NSLog(@"%@",GPSDict);

NSLog(@"%@",imageMetadata);

/* GPSDict 里面即是照片的GPS信息,具体可以输出看看*/

}

failureBlock:^(NSError *error) {

}];

}

}