Android 显示数据从 json 到 spinner 和 textview

Question

大家好我想显示来 self 的服务器的数据并在我的微调器和 TextView 上显示主题。到目前为止，我已经尝试过将它们显示在我的微调器上。但我不知道如何在 textview 上显示它们。

这是我到目前为止尝试过的:

private ArrayList<Verse> versesList;
versesList = new ArrayList<Verse>();

// DownloadJSON AsyncTask
private class DownloadJSON extends AsyncTask<Void, Void, Void> {

@Override
protected void onPreExecute() {
        super.onPreExecute();
        // Create a progressdialog
        mProgressDialog = new ProgressDialog(ALARM.this);
        // Set progressdialog title
        mProgressDialog.setTitle("Downloading Verses");
        // Set progressdialog message
        mProgressDialog.setMessage("Loading...");
        mProgressDialog.setIndeterminate(false);
        // Show progressdialog
        mProgressDialog.show();
}

@Override
protected Void doInBackground(Void... params) {
        // Create the array 
        // Retrieve JSON Objects from the given website URL in JSONfunctions.class

        ServiceHandler jsonParser = new ServiceHandler();
        String result;

        lang = Locale.getDefault().getLanguage();

        if(lang.equals("en")){
            result = jsonParser.makeServiceCall(URLENGLISH, ServiceHandler.GET);
        } else  {
            result = jsonParser.makeServiceCall(URLTAGALOG, ServiceHandler.GET);
        }


        try {
            JSONArray jr = new JSONArray(result);

            Log.d("Response: ", "> " + result);

            for (int i = 0; i < jr.length(); i++) {
                JSONObject catObj = jr.getJSONObject(i); //(JSONObject) jr.get(i);
                Verse cat = new Verse(catObj.getInt("verse_id"), 
                        catObj.getString("verse_title"));

                    versesList.add(cat);

            }
        } catch (JSONException e) {
            Log.e("Error", e.getMessage());
            e.printStackTrace();
        }
        return null;
} 

@Override
protected void onPostExecute(Void args) {
        // Close the progressdialog
        if (mProgressDialog.isShowing())
            mProgressDialog.dismiss();
        populateSpinner();
    }
}

/**
 * Adding spinner data
 * */
private void populateSpinner() {
    List<String> lables = new ArrayList<String>();

    for (int i = 0; i < versesList.size(); i++) {
        lables.add(versesList.get(i).getName());
    }

    // Creating adapter for spinner
    ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, lables);

    // Drop down layout style - list view with radio button
    spinnerAdapter
            .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    // attaching data adapter to spinner
    spinner.setAdapter(spinnerAdapter);
}

有人知道如何实现吗？对你的帮助表示感谢。谢谢。

Answer 1

So far what I've tried is displaying them on my spinner. But I don't have a clue how to display them on textview.

要在 TextView 中显示所选项目，您需要获取所选项目的位置

 int position = spinner.getSelectedItemPosition();

然后

String content = versesList.get(position).getContent().toString();

然后

textView.setText(content);