Question

我已经开发了一个应用程序。我必须将一个活动的值解析为下一个活动。解析值显示在textview上意味着成功显示。但解析值显示在微调器上意味着该值不显示在此应用

这是我的代码：

public class InsertionExample extends Activity {
private final String NAMESPACE = "http://xcart.com";
private final String URL = "http://192.168.1.168:8089/XcartLogin/services/update?wsdl";

private final String SOAP_ACTION = "http://xcart.com/insertData";
private final String METHOD_NAME = "insertData";
Button btninsert;
String selectedItem;

static final String KEY_NAME = "orderid";
static final String KEY_STATUS = "status";
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.change_status);
    TextView tv = (TextView) findViewById(R.id.textView1);
    tv.setText(getIntent().getExtras().getString("status"));


    Spinner spinner = (Spinner) findViewById(R.id.spinner1);
    btninsert = (Button)findViewById(R.id.btn_insert1);
    btninsert.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
             Intent in = getIntent();
             String orderid = in.getStringExtra(KEY_NAME);
             String status = in.getStringExtra(KEY_STATUS);

            SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
            PropertyInfo unameProp =new PropertyInfo();
            unameProp.setName("Status");//Define the variable name in the web service method
            unameProp.setValue(selectedItem);//Define value for fname variable
            unameProp.setType(String.class);//Define the type of the variable

            request.addProperty(unameProp);
            PropertyInfo idProp =new PropertyInfo();
            idProp.setName("Orderid");//Define the variable name in the web service method
            idProp.setValue(orderid);//Define value for fname variable
            idProp.setType(String.class);//Define the type of the variable
            request.addProperty(idProp);



              SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
              envelope.setOutputSoapObject(request);
              HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

              try{
               androidHttpTransport.call(SOAP_ACTION, envelope);
                  SoapPrimitive response = (SoapPrimitive)envelope.getResponse();

                 TextView result = (TextView) findViewById(R.id.textView2);
                  result.setText(response.toString());
             }
           catch(Exception e){

           }
              }
    });

    //attach the listener to the spinner
    spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());
    //Dynamically generate a spinner data 
    createSpinnerDropDown();

}

//Add animals into spinner dynamically
private void createSpinnerDropDown() {

    //get reference to the spinner from the XML layout
    Spinner spinner = (Spinner) findViewById(R.id.spinner1);

    //Array list of animals to display in the spinner
    List<String> list = new ArrayList<String>();

    list.add("Q");
    list.add("P");
    list.add("F");
    list.add("I");
    list.add("C");

    //create an ArrayAdaptar from the String Array
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_spinner_item, list);
    //set the view for the Drop down list
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    //set the ArrayAdapter to the spinner
    spinner.setAdapter(adapter);
    adapter.notifyDataSetChanged();
    //attach the listener to the spinner
    spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());

}






public class MyOnItemSelectedListener implements OnItemSelectedListener {

    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {

         selectedItem = parent.getItemAtPosition(pos).toString();

       }


    @Override
    public void onNothingSelected(AdapterView<?> arg0) {
        // TODO Auto-generated method stub

    }



    }

    public void onNothingSelected(AdapterView<?> parent) {
        // Do nothing.
    }
}

这里的状态是从过去的活动中解析出来的，并且使用TextView显示在当前活动上意味着它运作良好...但我希望解析的值显示在spinner.how上我可以管理上面的代码。请帮助我。

Answer 1

您必须维护下拉列表。如果解析的值是新项，则必须添加到列表并通知适配器。如果解析的值是现有值，您可以在列表中找到项目位置并设置微调器选定的项目位置。

// to set the spinner selected item
spinner.setSelection(position);

Answer 2

试试这个：

Spinner.setOnTouchListener(new OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
Spinner.setAdapter(new ArrayAdapter<String>(InsertionExample.this, android.R.layout.simple_spinner_item,list);;
}});

从先前活动解析值并显示在android中的当前活动微调器字段

2 个答案: