无法使用android代码将马拉地语语言值从spinner保存到mysql数据库

Question

在android app我spinner populate marathi values来自.xml file 现在我有一个insert.php insert values from spinner to mysql table。

但我得到运行时异常:( Null.exception

strings.xml

 <string-array name="problems">
     <item>सार्वजनिक पाळणा घर</item>
        <item>बस सेवा</item>
        <item>सार्वजनिक अभ्यासिका</item>
        <item>जॉगीग पार्क</item>        
    </string-array>

input_box.xml

  <Spinner
            android:id="@+id/spinner_problems"
            android:entries="@array/problems"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"       
             />

MainActivity.java

 final Spinner problems = (Spinner) findViewById((R.id.spinner_problems));
String myvalue = String.valueOf(problems
.getSelectedItem());


        ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();

    nameValuePairs.add(new BasicNameValuePair("name",myval));       

        HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://wwwd.emo.com/insert.php");
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse response = httpclient.execute(httppost); 
            HttpEntity entity = response.getEntity();
            is = entity.getContent();               

            BufferedReader reader = new BufferedReader
            (new InputStreamReader(is,"iso-8859-1"),8);
            StringBuilder sb = new StringBuilder();
            while ((line = reader.readLine()) != null)
        {
                sb.append(line + "\n");
            }
            is.close();
            result = sb.toString();         

        JSONObject json_data = new JSONObject(result);
            code=(json_data.getInt("code"));

            if(code==1)
            {
                new DialogTask().execute("Success");
                }
            else
            {
                new DialogTask().execute("Failure");
                }

Answer 1

看起来你没有实现微调器点击监听器并且错误地检索值。