Question

Ok, facing the problem I can’t parse my data from inside the try{} to something outside.
What is my goal to complete here…

The for-loop will run and add a string (img) to the array (image).
Actually it parses something to the array.. but I can’t get it outside the
try/catch-block. Can somebody help me with this?

Kind regards!

        protected void onPostExecute(Void unused)
        {
                try
                {           

                     jArray = new JSONArray(result);
                     String[] image = new String[jArray.length()];
                     Log.v("Crash Detect", "onPostExecute -> try");
                     JSONObject json_data=null;

                     for(int i=0;i<jArray.length();i++)
                     {
                         Log.v("Crash Detect", "onPostExecute -> forloop");
                        json_data = jArray.getJSONObject(i);


                        merk=json_data.getString("printerMerk");
                        type=json_data.getString("printerType");
                        content = json_data.getString("content");
                        img = json_data.getString("Img");



                        Arrays.fill(image, img);


                    } 
                 }
                 catch(JSONException e1)
                 {
                     Toast.makeText(getBaseContext(), "Niks gevonden" ,Toast.LENGTH_LONG).show();
                 } 
                catch (ParseException e1) 
                {
                       e1.printStackTrace();
                }   



            dialog.dismiss();


            Button home = (Button) findViewById(R.id.home);
            Button printerType = (Button) findViewById(R.id.printerType);

            home.setText(merk);
            printerType.setText(type);


            list=(ListView)findViewById(R.id.list);
            adapter=new LazyAdapter(doc.this, image);
            list.setAdapter(adapter);
        }

Answer 1

Declare the variable outside the try/catch and then check if it is set when you want to use it.

  protected void onPostExecute(Void unused)
  {
       String[] image = null;
        try
        {           
            jArray = new JSONArray(result);
            image = new String[jArray.length()];
            // extra code

        }
        catch(JSONException e1)
        {
            Toast.makeText(getBaseContext(), "Niks gevonden" ,Toast.LENGTH_LONG).show();
        } 
        catch (ParseException e1) 
        {
            e1.printStackTrace();
        }   
        // perform extra code

        // NOTE: be sure to check image before using it as it might be null if exception is thrown!
        if(image != null)
        {
            // use image 
            adapter=new LazyAdapter(doc.this, image);
        }