UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet] ;
[alertVC addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * action) {
NSLog(@"点击 取消 ");
}]];
[alertVC addAction:[UIAlertAction actionWithTitle:@"拍照" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * action) {
NSLog(@"拍照 ");
[weakself loadPictureFromCarmeral];
}]];
[alertVC addAction:[UIAlertAction actionWithTitle:@"从手机相册选择" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
NSLog(@"点击 从手机相册选择 ");
[weakself getImageFromAlbum];
}]];
[self presentViewController:alertVC animated:YES completion:nil];