Picasso image not displaying

问题

one image is displaying on my app and the other is not, however both can be accesses from the browser.

this one in my free host is not displaying on my app. Please not that I can see the image from the free host server :

   http://www.justedhak.comlu.com/images/uploaded_images.jpg

this one is from a random site and its showing on the app.

http://api.androidhive.info/json/movies/1.jpg

My question, is it could the problem in the way I am uploading the image ? or could be the free host (000webhost) ? please give me your opinion

I am uploading image to server then displaying in the activity I can see the url but its not showing in the app. however I also add another image url and its showing in the app.

this is the code of getting url image

protected void showList(){
    try {
        JSONObject jsonObj = new JSONObject(myJSON);
        peoples = jsonObj.getJSONArray(TAG_RESULTS);

        for(int i=0;i<peoples.length();i++){
            JSONObject c = peoples.getJSONObject(i);
            String id = c.getString(TAG_ID);
            String url = c.getString(TAG_PATH); 
            Listitem.add(new Listitem(id,url));
        }

        GridViewAdapter adapter = new GridViewAdapter(this, R.layout.grid_item_layout, Listitem);
     //   gridView.setAdapter(gridAdapter); 

       list.setAdapter(adapter);

    } catch (JSONException e) {
        e.printStackTrace();
    }

}
public class GetDataJSON extends AsyncTask<String, Void, String>{
     @Override
        protected String doInBackground(String... params) {
            DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
            HttpPost httppost = new HttpPost("http://justedhak.comlu.com/get-data.php");

            // Depends on your web service
            httppost.setHeader("Content-type", "application/json");

            InputStream inputStream = null;
            String result = null;
            try {
                HttpResponse response = httpclient.execute(httppost);
                HttpEntity entity = response.getEntity();

                inputStream = entity.getContent();
                // json is UTF-8 by default
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
                StringBuilder sb = new StringBuilder();

                String line = null;
                while ((line = reader.readLine()) != null)
                {
                    sb.append(line + "\n");
                }
                result = sb.toString();
            } catch (Exception e) {
                // Oops
            }
            finally {
                try{if(inputStream != null)inputStream.close();}catch(Exception squish){}
            }
            return result;
        }

this is uploading image

}
public void onclick(View view)
{
    Toast.makeText(AddImage.this, "Uploading Image", Toast.LENGTH_LONG).show();                         
    upload();

      Intent i = new Intent(this,
                MainActivity.class);
      startActivity(i);
}
public void upload()
{
      Calendar thisCal = Calendar.getInstance();
      thisCal.getTimeInMillis();

      //  android.util.Log.i("Time Class ", " Time value in millisecinds "+ thisCal);

   // Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.ic_launcher);  
 //   ByteArrayOutputStream stream = new ByteArrayOutputStream();
   // bmp.compress(Bitmap.CompressFormat.PNG, 90, stream); //compress to which format you want.

        Intent intent = getIntent();
        String selectedImage= intent.getStringExtra("imagePath");
        Uri fileUri = Uri.parse(selectedImage);

   // Uri selectedImage = intent.getData();
    System.out.println(fileUri);
    InputStream imageStream = null;
    try {
        imageStream = getContentResolver().openInputStream(fileUri);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }

    Bitmap bmp = BitmapFactory.decodeStream(imageStream);

    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bmp.compress(Bitmap.CompressFormat.JPEG, 30, stream);


    byte[] byteArray = stream.toByteArray();
    Bitmap bitmap = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
    imageview.setImageBitmap(bitmap);
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    System.out.println(width);
    System.out.println(height);


    getResizedBitmap( bitmap, 200);
    try {
        stream.close();
        stream = null;
    } catch (IOException e) {

        e.printStackTrace();
    }

    String image_str = Base64.encodeBytes(byteArray);
    final ArrayList<NameValuePair> nameValuePairs = new  ArrayList<NameValuePair>();
    nameValuePairs.add(new BasicNameValuePair("image",image_str));
    nameValuePairs.add(new BasicNameValuePair("caption",caption));
    nameValuePairs.add(new BasicNameValuePair("name","je"));
    nameValuePairs.add(new BasicNameValuePair("categorie",categorie));
     Thread t = new Thread(new Runnable() {

    @Override
    public void run() {
          try{

                 HttpClient httpclient = new DefaultHttpClient();
                 HttpPost httppost = new HttpPost("http://justedhak.comlu.com/images/upload_image.php");
                 httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                 HttpResponse response = httpclient.execute(httppost);
                 final String the_string_response = convertResponseToString(response);
                 runOnUiThread(new Runnable() {

                        @Override
                        public void run() {
                            Toast.makeText(AddImage.this, "Response " + the_string_response, Toast.LENGTH_LONG).show();                         
                        }
                    });

             }catch(final Exception e){
                  runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
                        Toast.makeText(AddImage.this, "ERROR " + e.getMessage(), Toast.LENGTH_LONG).show();                             
                    }
                });
                   System.out.println("Error in http connection "+e.toString());
             }  
    }
});
 t.start();
}

php file

$con = mysqli_connect($host,$uname,$pwd,$db);

$description= $_GET['description'];
$categorie= $_GET['categorie'];
$imageurl="www.justedhak.comlu.com/images/uploaded_images.jpg";
$image=$_POST['image'];



     $binary=base64_decode($image);
    header('Content-Type: bitmap; charset=utf-8');
    $file = fopen('uploaded_images.jpg', 'wb');
    fwrite($file, $binary);
    fclose($file);

$sql = "insert into image (description,categorie,path) values ('$categorie','$description','$imageurl')";
 if(mysqli_query($con,$sql)){
  echo 'success';
}
else{
echo 'failure';
  }
mysqli_close($con);

    echo 'Image upload complete!!, Please check your php file directory……';

回答1:

UPDATE:

I have found the main reason that Picasso does not display your image is the image Url in your JSON does not start with http://.

Here is my working sample code (only for getting the image Url and displaying by Picasso, not including image uploading)

public class MainActivity extends AppCompatActivity {

    private final Context mContext = this;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final TextView textView = (TextView) findViewById(R.id.textView);
        final ImageView imageView = (ImageView) findViewById(R.id.imageView);
        String url = "http://justedhak.comlu.com/get-data.php";
        RequestQueue queue = Volley.newRequestQueue(mContext);
        JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                if (response != null && !response.isNull("result")) {
                    try {
                        JSONArray jsonArray = response.getJSONArray("result");
                        if (jsonArray != null && jsonArray.length() > 0) {
                            // get only one element for testing display image
                            JSONObject jsonObject = jsonArray.getJSONObject(1);
                            if (jsonObject != null && !jsonObject.isNull("path")) {
                                String imagePath = jsonObject.getString("path");
                                if (imagePath != null && !imagePath.isEmpty()) {
                                    textView.setText(imagePath);
                                    Picasso.with(mContext).load("http://" + imagePath).into(imageView);
                                }
                            }
                        }
                    } catch (JSONException e) {
                        textView.setText(e.toString());
                        e.printStackTrace();
                    }
                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                textView.setText(error.toString());
            }
        });

        queue.add(jsonObjectRequest);            
    }
}

And here is the result screenshot (you can pay attention to the textView's value, without http:// prefix)

P/S: GET request works also (you can check by access the http://justedhak.comlu.com/get-data.php simply by any web browser such as Chrome)

To sum up, you will have 2 options:

Option 1: Update the image Urls in your server database so that all of them start with http://
Option 2: Check the image Urls in your android client code, if not started with http://, must add this prefix as in my above sample code

END OF UPDATE

I think you can try using HttpGet instead of HttpPost for getting the image Urls. I have just tried and get the following results;

{"result":[{"id":"1","name":null,"path":"http://api.androidhive.info/json/movies/1.jpg"},{"id":"2","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"28","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"27","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"26","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"25","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"24","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"23","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"22","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"21","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"20","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"19","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"},{"id":"18","name":null,"path":"www.justedhak.comlu.com/images/uploaded_images.jpg"}]}

Moreover, try using HttpUrlConnection, OkHttp... instead of Apache HttpClient because of its deprecation now.

Hope this helps!

来源：https://stackoverflow.com/questions/31873757/picasso-image-not-displaying

标签

android

picasso