変換スピナー値

Question

Javaファイル

public class CreateScreen extends AppCompatActivity { 

    EditText e1,e2,e3,e4,e5,e6,e7; 
    Button b1,b2; 
    Spinner s1,s2; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
     StrictMode.setThreadPolicy(policy); 
     setContentView(R.layout.activity_create_screen); 
     final Intent i = getIntent(); 

     String vno = i.getStringExtra("vno"); 
     String com = i.getStringExtra("com"); 
     e1=(EditText)findViewById(R.id.editText8); 
     e2=(EditText)findViewById(R.id.editText9); 
     e3=(EditText)findViewById(R.id.editText10); 
     e4=(EditText)findViewById(R.id.editText11); 
     e5=(EditText)findViewById(R.id.editText12); 
     e6=(EditText)findViewById(R.id.editText13); 
     e7=(EditText)findViewById(R.id.editText14); 

     e1.setText(vno); 
     e2.setText(com); 
     s1=(Spinner)findViewById(R.id.spinner); 
     String[] items = new String[]{"RAW MATERIAL", "FINISHED MATERIAL", "SEMI FINISHED MATERIAL"}; 
     ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, items); 
     s1.setAdapter(adapter); 
     final String matgrp = adapter.toString(); 

     s2=(Spinner)findViewById(R.id.spinner2); 
     String[] item = new String[]{"INR", "USD", "MYR","JPY", "SGD"}; 

     ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, item); 
     s2.setAdapter(adapter1); 

     final String currency = adapter1.toString(); 
     b1=(Button)findViewById(R.id.save); 
     b2=(Button)findViewById(R.id.home); 

     b2.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       Intent i = new Intent(CreateScreen.this,MaterialMenu.class); 
       startActivity(i); 
      } 
     }); 
     b1.setOnClickListener(new View.OnClickListener() { 
      InputStream is =null; 
      String result1 =null; 

      @Override 
      public void onClick(View v) { 
       String a = e1.getText().toString(); 
       String b = e2.getText().toString(); 
       String c = e3.getText().toString(); 
       String d = e4.getText().toString(); 
       String z = e5.getText().toString(); 
       String f = e6.getText().toString(); 
       String g = e7.getText().toString(); 

       ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
       nameValuePairs.add(new BasicNameValuePair("materialnumber", a)); 
       nameValuePairs.add(new BasicNameValuePair("companycode", b)); 
       nameValuePairs.add(new BasicNameValuePair("desc", c)); 
       nameValuePairs.add(new BasicNameValuePair("mattype", matgrp)); 

       nameValuePairs.add(new BasicNameValuePair("matgroup", d)); 
       nameValuePairs.add(new BasicNameValuePair("baseunit", z)); 
       nameValuePairs.add(new BasicNameValuePair("priceunit", f)); 
       nameValuePairs.add(new BasicNameValuePair("orderunit", g)); 
       nameValuePairs.add(new BasicNameValuePair("curr",currency)); 

       try { 
        HttpClient httpClient = new DefaultHttpClient(); 
        HttpPost httpPost = new HttpPost("http://10.0.2.2/android/create.php"); 
        httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
        HttpResponse response = httpClient.execute(httpPost); 
        HttpEntity entity = response.getEntity(); 
        is = entity.getContent(); 

        android.util.Log.e("log_tag", "connection success "); 

       } catch (Exception e) { 
        android.util.Log.e("log_tag", "Error in http connection " + e.toString()); 
        Toast.makeText(getApplicationContext(), "Connection fail", Toast.LENGTH_SHORT).show(); 
       } 
       try { 
        BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8); 
        StringBuilder sb = new StringBuilder(); 
        String line = null; 
        while ((line = reader.readLine()) != null) { 
         sb.append(line + "\n"); 
        } 
        is.close(); 

        result1 = sb.toString(); 


       } catch (Exception e) { 
        android.util.Log.e("log_tag", "Error converting result " + e.toString()); 
       } 
       try 
       { 
        JSONObject object = new JSONObject(result1); 
        String w = object.getString("re"); 
        if(w.equals("Material Created successfully")) 
        { 
         Toast.makeText(getApplicationContext(), w, Toast.LENGTH_SHORT).show(); 
         Intent i = new Intent(CreateScreen.this, Menu.class); 

         startActivity(i); 
        } 
        else 
        { 
         Toast.makeText(getApplicationContext(), w, Toast.LENGTH_SHORT).show(); 
        } 
       } 
       catch (Exception e) 
       { 
        Log.e("log_tag", "Error parsing data "+e.toString()); 
        Toast.makeText(getApplicationContext(), "JsonArray failed to load", Toast.LENGTH_SHORT).show(); 
       } 

      } 
     }); 
    } 

はlogcat

値は、私が書き換えする必要がありますどのように文字列

に変換することはできませんこのコードはスピナー値をJsonObjectとPHPで使用される文字列に変換しますか？ここ

Answer 1

これらのコードを削除します。

final String matgrp = adapter.toString（）; final String currency = adapter1.toString（）;

スピナー用にsetOnItemClickListner（）メソッドを使用すると、parent.getItemAtPosition（）を使用して文字列を取得できる変数を使用して親変数を取得できます。

Answer 2

：

最終列通貨= adapter1.toString（）。

この行のtoString（）メソッドは、Spinnerの選択値ではなくadapter1ArrayAdapterというオブジェクトの文字列を返します。スピナーs1から値を取得するために同じことを行う

nameValuePairs.add(new BasicNameValuePair("curr",s2.getSelectedItem().toString())); 

：

がようSpinnerから選択された値を取得します。お使いのアダプタクラスで

Answer 3

アダプタクラス内のオーバーライドtoStringメソッド

@Override 
public String toString() { 
    return super.toString(); 
} 

Answer 4

。

例：

public class AmenityListAdapter extends SomeAdapter(BaseAdapter, ArrayAdapter etc etc) { 

@Override 
public String toString() { 
    StringBuffer strBuf = ""; 
    for(String myarr:Items) { 
     strBuf.concat(myarr+","); 
    } 
    return strBuf.toString; 
} 
}