how to display downloaded images(history) in one of options called "view downloads" in navigation drawer menu

Question

in my project my image are getting downloaded perfectly now I only wanted to know how should I display that downloaded images in "view downloads" activity which is present in navigation drawer...please anybody how can I display

download function in my activity:

downloadimage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            DownloadManager.Request request = new DownloadManager.Request(
                    Uri.parse(imgUrl));
            request.allowScanningByMediaScanner();
            request.setNotificationVisibility(DownloadManager.
                    Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
            request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "/my_file.JPEG");
            DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
            dm.enqueue(request);

            Toast.makeText(getApplicationContext(), "Downloading File",
                    Toast.LENGTH_LONG).show();
        }
    });

view downloads activity(I haven't done here anything)edit please:

public class NextActivity extends AppCompatActivity {
ImageView myImage;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_next);
    myImage = (ImageView) findViewById(R.id.down);

    //getActionBar().setDisplayHomeAsUpEnabled(true);
   // getActionBar().setHomeButtonEnabled(true);
    //Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    //setSupportActionBar(toolbar);
   // this.getSupportActionBar().setDisplayHomeAsUpEnabled(false);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    File imgFile = new File( Environment.DIRECTORY_DOWNLOADS, "/my_file.JPEG");
    if(!(imgFile==null)){
        Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getPath());
        myImage.setImageBitmap(myBitmap);
        Log.d("ashwiniiii","ashwiniii");
    }
    else {
        myImage.setImageResource(R.drawable.ic_launcher_background);
    }


    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    assert navigationView != null;
   //navigationView.setNavigationItemSelectedListener((NavigationView.OnNavigationItemSelectedListener) this);
    if (getSupportActionBar() != null){
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
    }
   // getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    //getSupportActionBar().setHomeButtonEnabled(true);
}

@Override
public boolean onOptionsItemSelected(@NonNull MenuItem item) {
    if (item.getItemId() == android.R.id.home) {
        finish(); // close this activity and return to preview activity (if there is any)
    }
    return super.onOptionsItemSelected(item);
}

@Override
public void onBackPressed() {

        super.onBackPressed();
    }}

Answer 1

if you are looking for showing images that you have downloaded to your device, the below code should work,

public class NextActivity extends AppCompatActivity {
ImageView img;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_next);
    img=findViewById(R.id.down);
    //getActionBar().setDisplayHomeAsUpEnabled(true);
   // getActionBar().setHomeButtonEnabled(true);
    //Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    //setSupportActionBar(toolbar);
   // this.getSupportActionBar().setDisplayHomeAsUpEnabled(false);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);



    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    assert navigationView != null;

  //update code
    img.setImageBitmap(getImage());
       //navigationView.setNavigationItemSelectedListener((NavigationView.OnNavigationItemSelectedListener) this);
        if (getSupportActionBar() != null){
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            getSupportActionBar().setDisplayShowHomeEnabled(true);
        }
       // getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        //getSupportActionBar().setHomeButtonEnabled(true);
    }

@Override
public boolean onOptionsItemSelected(@NonNull MenuItem item) {
    if (item.getItemId() == android.R.id.home) {
        finish(); // close this activity and return to preview activity (if there is any)
    }
    return super.onOptionsItemSelected(item);
}





  public Image getImage(){
    File imgFile = new File("/image_location"); 

//code to get image from path
if(imgFile.exists())


  {
 Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath()); 
    }

    return myBitmap;

//returns image to specified imageview
        }

@Override
public void onBackPressed() {

        super.onBackPressed();
    }}



  }