如何使用Sqlite數據庫更新android中的微調器？

Question

我正在使用這個follwing代碼。

nextButton.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       String name=nameEdit.getText().toString(); 

       String contactnumber=numberEdit.getText().toString(); 

       String quantity = String.valueOf(quantitySpinner.getSelectedItem()); 

       String noofpieces=piecesEdit.getText().toString(); 

       String dateandtime=editDateTime.getText().toString(); 



       String deliveryaddress=deliveryEdit.getText().toString(); 


       long val=adapter.insertDetails(name, contactnumber, quantity, noofpieces, dateandtime,OPTIONS ,deliveryaddress); 


       String sms="Name:"+name+ System.getProperty ("line.separator")+"ContactNumber:"+contactnumber+ System.getProperty ("line.separator")+"Quantity:"+quantity+System.getProperty ("line.separator")+"Number.of.Pcs:"+noofpieces+System.getProperty ("line.separator")+"Date and Time:"+dateandtime+System.getProperty ("line.separator")+"Delivary Address:"+deliveryaddress; 

       int bookingId = adapter.getMaxID(); 

       Bundle passdata = new Bundle(); 
       passdata.putInt(helper_ob.B_ID, bookingId); 
       passdata.putString(helper_ob.QUANTITY, quantity); 
       passdata.putString(helper_ob.SMS, sms); 
       Intent passIntent = new Intent(BookingForm.this, OrderSummary.class); 
       passIntent.putExtras(passdata); 
       startActivity(passIntent);finish(); 

      } 
     }); 

，並已插入到數據庫表。而更新的報名表。我可以得到除微調.The微調值被設置爲默認所有的東西進行編輯。

spinner.xml

<?xml version="1.0" encoding="utf-8"?> 
<resources> 

    <string name="app_name">Android</string> 
    <string name="action_settings">Settings</string> 
    <string name="bottle_prompt">Select your Quantity</string> 

    <string-array name="bottle_arrays"> 
     <item >300ml</item> 
     <item>500ml</item> 
     <item>1-litre</item> 
     <item>2-litre</item> 
     <item>5-litre</item> 
     <item>20-litre</item> 
     <item>50-litre</item> 
     <item>New Bt</item> 
     <item>New Matca</item> 
    </string-array> 

</resources> 

對於例如：如果我選擇在轉1升，並插入到數據庫表中，同時更新所有的值在編輯頁面被打開，除了微調器設置爲默認300ml。如何在編輯頁面時更新微調器？

Edit.java

package com.example.android; 

import android.app.Activity; 
import android.content.Intent; 
import android.database.Cursor; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.RadioButton; 
import android.widget.RadioGroup; 
import android.widget.Spinner; 

public class EditBookingForm extends Activity { 
    EditText nameEdit,contactNumber,editPieces,editDate,editAddress; 
    Spinner spinner; 
    RadioGroup radioGroup; 
    RadioButton radioButton; 
    Cursor cursor; 
    BookingAdapter adapter; 
    BookingOpenHelper openHelper_ob; 
    Button doneButton,cancelButton; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.edit_online); 
     nameEdit=(EditText) findViewById(R.id.nameEdit); 
     contactNumber=(EditText) findViewById(R.id.contactNumber); 
     editPieces=(EditText) findViewById(R.id.editpieces); 
     editDate=(EditText) findViewById(R.id.editdate); 
     editAddress=(EditText) findViewById(R.id.editdelivary); 
     spinner=(Spinner) findViewById(R.id.spinner); 
     radioGroup=(RadioGroup) findViewById(R.id.radioGroup); 
     doneButton=(Button) findViewById(R.id.updateformbtn); 
     cancelButton=(Button) findViewById(R.id.deleteformbutton);  
     Bundle extras = getIntent().getExtras(); 
     final int bookingId = extras.getInt(openHelper_ob.B_ID); 



     adapter = new BookingAdapter(this); 
     cursor = adapter.queryAll(bookingId); 
     if (cursor.moveToFirst()) { 
      do { 
       nameEdit.setText(cursor.getString(1)); 
       contactNumber.setText(cursor.getString(2)); 
       //spinner.setSelection(q); 
       editPieces.setText(cursor.getString(4)); 
       editDate.setText(cursor.getString(5)); 
       editAddress.setText(cursor.getString(6)); 


      } while (cursor.moveToNext()); 
     } 
     doneButton.setOnClickListener(new OnClickListener() {  
      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
       String name = nameEdit.getText().toString(); 
       String number = contactNumber.getText().toString(); 
       String quantity = String.valueOf(spinner.getSelectedItem()); 

       String noofpieces=editPieces.getText().toString(); 

       String dateandtime=editDate.getText().toString(); 



       String deliveryaddress=editAddress.getText().toString(); 

       adapter.updateldetail(bookingId,name,number); 
       finish();    
       Bundle passdata = new Bundle(); 
       String sms="Name:"+name+ System.getProperty ("line.separator")+"ContactNumber:"+number+ System.getProperty ("line.separator")+"Quantity:"+quantity+System.getProperty ("line.separator")+"Number.of.Pcs:"+noofpieces+System.getProperty ("line.separator")+"Date and Time:"+dateandtime+System.getProperty ("line.separator")+"Delivary Address:"+deliveryaddress; 
       passdata.putInt(openHelper_ob.B_ID, bookingId);  
       passdata.putString(openHelper_ob.SMS, sms); 
       Intent passIntent = new Intent(EditBookingForm.this, OrderSummary.class); 
       passIntent.putExtras(passdata); 
       startActivity(passIntent);    
      } 
     }); 
} 
} 

Answer 1

的方式來獲得的該選擇旋轉器是：

int spinnerValue = spinner.getSelectedItemPosition(); 

文檔參考：http://developer.android.com/reference/android/widget/AdapterView.html#getSelectedItemPosition()

Answer 2

spinner.setSelection(POSITION); 

這將選擇設置爲所期望的位置，其中位置可以從陣列元件在字符串文件中找到

Answer 3

Spinner spinner; 

//存儲textvalue在數量

String quantity = String.valueOf(spinner.getSelectedItem()); 

//存儲getSelectedItemPosition在int變量

int qualityValue=spinner.getSelectedItemPosition();