一.获取单张图片思路:
1.利用UIImagePickerController可以从系统自带的App(照片\相机)中获得图片
2.设置代理,遵守代理协议注意这个UIImagePickerController类比较特殊,需要遵守两个代理协议@interface ViewController ()
3.实现代理的方法
didFinishPickingMediaWithInfo- (void)getImageFromIpc{
// 1.判断相册是否可以打开
if (![UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypePhotoLibrary])
return;
// 2. 创建图片选择控制器
UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
/** typedef NS_ENUM(NSInteger, UIImagePickerControllerSourceType) {
UIImagePickerControllerSourceTypePhotoLibrary, // 相册
UIImagePickerControllerSourceTypeCamera, // 用相机拍摄获取
UIImagePickerControllerSourceTypeSavedPhotosAlbum // 相簿 } */
// 3. 设置打开照片相册类型(显示所有相簿) ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// ipc.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; // 照相机
// ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
// 4.设置代理 ipc.delegate = self;
// 5.modal出这个控制器 [self presentViewController:ipc animated:YES completion:nil];}
#pragma mark ----// 获取图片后的操作
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary*)info
{
// 销毁控制器
[picker dismissViewControllerAnimated:YES completion:nil];
// 设置图片
self.imageView.image = info[UIImagePickerControllerOriginalImage];
}
