Question

我正在使用此库（https://github.com/darsh2/MultipleImageSelect）从图库中选择图像并将图像设置为Imageviews。在onActivityResult（）中，我使用ArrayList<Image> images = data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);来获取所选图像的路径。但是我无法将我选择的图像设置为ImageViews。

代码：

   Intent intent = new Intent(AddOffers.this, AlbumSelectActivity.class);
                    //set limit on number of images that can be selected, default is 10
                    intent.putExtra(Constants.INTENT_EXTRA_LIMIT, 3);
                    startActivityForResult(intent, Constants.REQUEST_CODE);

    @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            if (requestCode == Constants.REQUEST_CODE && resultCode == RESULT_OK && data != null) {
                //The array list has the image paths of the selected images
                ArrayList<Image> images =     data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);
                offr_img1.setImageUri(images.get(0));
 }}

Answer 1

我看到的是您传递完整的Image对象，但是您需要传递路径来设置图像。

在您的代码中，尝试更改此内容 -

offr_img1.setImageUri(images.get(0));

到

offr_img1.setImageUri(images.get(0).path);

Answer 2

使用此：

theory Scratch
imports Main
begin

ML {*
  (* In reality, this would of course be a much more complex parser. *)
  val my_parser : term parser = Parse.nat >> HOLogic.mk_nat

  (* This function should invoke my_parser to parse the content of cartouche.
     Parse errors should be properly reported (i.e., with red highlighting in
    jEdit etc. *)
  fun parse_cartouche ctx (cartouche:string) (pos:Position.T) : term = 
    (warning ("I should parse: " ^ cartouche ^ ". Returning arbitrary term instead"); @{term True})

  (* Modified from Cartouche_Examples.thy *)
  fun cartouche_tr (ctx:Proof.context) args =
      let fun err () = raise TERM ("cartouche_tr", args) in
        (case args of
          [(c as Const (@{syntax_const "_constrain"}, _)) $ Free (s, _) $ p] =>
            (case Term_Position.decode_position p of
              SOME (pos, _) => c $ (parse_cartouche ctx s pos) $ p
            | NONE => err ())
        | _ => err ())
      end;
*}

syntax "_my_syntax" :: "cartouche_position ⇒ 'a" ("MY_")
parse_translation ‹[(@{syntax_const "_my_syntax"}, cartouche_tr)]›

term "(MY ‹123›, 3)" (* Should parse as (123,3) *)

end

Android无法将图像从图库设置为ImageViews

2 个答案: