如何从内部存储读取图像

Question

I have downloaded an image to my app data/data/package memory. it is downloaded, but problem is that i did not got path to display image in imageviewer. but could not. please tell me how to display. Please attention on path. thank you Here is my download code.

ImageView imageView = (ImageView) findViewById(R.id.iv);
        String mUrl = "https://cometonice.com/im.gif";
        InputStreamVolleyRequest request = new InputStreamVolleyRequest(Request.Method.GET, mUrl,
                new Response.Listener<byte[]>() {
                    @Override
                    public void onResponse(byte[] response) {
                        // TODO handle the response
                        try {
                            if (response != null) {

                                FileOutputStream outputStream;
                                String name = "im.gif";
                                outputStream = openFileOutput(name, Context.MODE_PRIVATE);
                                outputStream.write(response);
                                outputStream.close();
                                Toast.makeText(MainActivity.this, "Download complete.", Toast.LENGTH_LONG).show();
                            }
                        } catch (Exception e) {
                            // TODO Auto-generated catch block
                            Log.d("KEY_ERROR", "UNABLE TO DOWNLOAD FILE");
                            e.printStackTrace();
                        }
                    }
                }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                // TODO handle the error
                error.printStackTrace();
            }
        }, null);
        RequestQueue mRequestQueue = Volley.newRequestQueue(getApplicationContext(), new HurlStack());
        mRequestQueue.add(request);

Answer 1

Well you can use The ImageRequest of volley like this :

ImageRequest request = new ImageRequest(url,
    new Response.Listener<Bitmap>() {
        @Override
        public void onResponse(Bitmap bitmap) {
            imageView.setImageBitmap(bitmap);
            saveBitmapToFile(bitmap)
        }
    }, 0, 0, null,
    new Response.ErrorListener() {
        public void onErrorResponse(VolleyError error) {

        }
    });

and save it like :

public String saveBitmapToFile(Bitmap bitmap) {
        FileOutputStream out = null;
        String filename = null;
        try {
            File f = new File(Environment.getExternalStorageDirectory(), "myapp");
            if (!f.exists()) {
                f.mkdirs();
            }
            filename = Environment.getExternalStorageDirectory().getAbsolutePath() + "/myapp/" + UUID.randomUUID().toString() + ".jpg";
            out = new FileOutputStream(filename);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 20, out);
            out.flush();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (out != null) {
                    out.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return filename;
    }