Android：如何實現Android ListView的這種操作？

Question

我的應用程序有類似下面的功能：

我已經做了與自定義適配器設置的值。但現在我想要實現功能，就像添加其他數據，刪除顯示數據，轉到下一個數據並返回到以前的數據。在所有這些功能中，只有藍色值應該改變。 （這是代碼中的orderStatus）。左一個值（orderName（））應該保持不變。那麼如何實現呢？

如果我添加新數據，那麼應該臨時存儲，因爲我想顯示該數據以報告。

在我的應用我要去添加數據第一次像下面的代碼：

getOrder函數來設置ORDERNAME和OrderStatus的價值。

public void getOrders(){ 
     try{ 
//    if(employee) 
//    { 
        System.out.println("You are in Employee"); 
        m_orders = new ArrayList<Order>(); 
        payListForEmployee = new String[] {"Tax Code","Pay period Begin","Pay Frequency","Salary/Wage per pay", 
         "Net or Gross Amount","KS Employee deduction","KS Employee contributions","Child Support deduction","Payroll giving donation"}; 

        Order o[]=new Order[payListForEmployee.length]; 
        System.out.println("The Length is: "+payListForEmployee.length); 
        for (int i = 0; i < payListForEmployee.length; i++) 
        { 
         o[i]=new Order(); 
         o[i].setOrderName(payListForEmployee[i]); 

         //myPrefs = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE); 
         // for TAXCODE 
         if(i==0) { 
          taxCodeValue = PAYEEmployeeDetail.taxCodeFinalValue; 
          if((taxCodeValue==null)) { 
           taxCodeValue = "Please select"; 
          } 
          o[i].setOrderStatus(taxCodeValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 

         } 
         // for Pay Period Frequency 
         if(i==1) { 
          //payPeriodValue = myPrefs.getString("payperiod", "12 09 2011"); 
          payPeriodValue = PAYEEmployeeDetail.payPeriodFinalValue; 
          if((payPeriodValue==null)) { 
           payPeriodValue = "--/--/----"; 
          } 
          o[i].setOrderStatus(payPeriodValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // for Pay frequency 
         if(i==2) { 
          //payFrequencyValue = myPrefs.getString("payfrequency", "Weekly"); 
          payFrequencyValue = PAYEEmployeeDetail.payFrequencyFinalValue; 
          if((payFrequencyValue==null)) { 
           payFrequencyValue = "Please select"; 
          } 
          o[i].setOrderStatus(payFrequencyValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // for salary/wage 
         if(i==3) { 
          salaryWageValue = PAYEEmployeeDetail.salaryWageFinalValue; 
          if((salaryWageValue==null)||(salaryWageValue.equals(""))) { 
           salaryWageValue = "$0"; 
          } 
          else{ 
           salaryWageValue = "$"+salaryWageValue; 
          } 
          o[i].setOrderStatus(salaryWageValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // For Gross/Net 
         if(i==4) { 

          o[i].setOrderStatus("Gross"); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // for KS Employee Deduction 
         if(i==5) { 
          employeeDeductionValue = PAYEEmployeeDetail.employeeDeductionFinalValue; 
          if((employeeDeductionValue==null)||(employeeDeductionValue.equals(""))) { 
           employeeDeductionValue = "0%"; 
          } 
          o[i].setOrderStatus(employeeDeductionValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // for KS Employee Contribution 
         if(i==6) { 
          employeeContributionValue = PAYEEmployeeDetail.employeeContributionFinalValue; 
          if((employeeContributionValue==null)||(employeeContributionValue.equals(""))) { 
           employeeContributionValue = "0%"; 
          } 
          else{ 
           employeeContributionValue = employeeContributionValue+"%"; 
          } 
          o[i].setOrderStatus(employeeContributionValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // for Child Support Deduction 
         if(i==7) { 
          childSupportDeductionValue = PAYEEmployeeDetail.childSupportDeductionFinalValue; 
          if((childSupportDeductionValue==null)||(childSupportDeductionValue.equals(""))) { 
           childSupportDeductionValue = "$0"; 
          } 
          else{ 
           childSupportDeductionValue = "$"+childSupportDeductionValue; 
          } 
          o[i].setOrderStatus(childSupportDeductionValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         // for Payroll giving donation 
         if(i==8) { 
          payrollDonationValue = PAYEEmployeeDetail.payrollDonationFinalValue; 
          if((payrollDonationValue==null)||(payrollDonationValue.equals(""))) { 
           payrollDonationValue = "$0"; 
          } 
          else{ 
           payrollDonationValue = "$"+payrollDonationValue; 
          } 
          o[i].setOrderStatus(payrollDonationValue); 
          //System.out.println("The Value is: "+o[i].getOrderStatus()); 
         } 
         m_orders.add(o[i]); 
         //lv.invalidate(); 
//      System.out.println("==> TaXCode Value: "+PAYEEmployeeDetail.taxCodeFinalValue); 
//      System.out.println("==> PAyPeriod Value: "+PAYEEmployeeDetail.payPeriodFinalValue); 
//      System.out.println("==> PayFrequency Value: "+PAYEEmployeeDetail.payFrequencyFinalValue); 
//      System.out.println("==> Salary/Wage Value: "+PAYEEmployeeDetail.salaryWageFinalValue); 
//      System.out.println("==> Gross/Net Value "+"STATIC VALUE = GROSS"); 
//      System.out.println("==> Employee Deduction Value "+PAYEEmployeeDetail.employeeDeductionFinalValue); 
//      System.out.println("==> Employee Contribution Value "+PAYEEmployeeDetail.employeeContributionFinalValue); 
//      System.out.println("==> Child Support Deduction Value "+PAYEEmployeeDetail.childSupportDeductionFinalValue); 
//      System.out.println("==> PayRoll Donation Value "+PAYEEmployeeDetail.payrollDonationFinalValue); 
//      
        } 
//    } 
//    else 
//    { 
//     System.out.println("You Are in Employer"); 
//     m_orders = new ArrayList<Order>(); 
//     
//     payListForEmployer = new String[] {"Tax Code","Pay period Begin","Pay Frequency","Salary/Wage per pay", 
//       "Net or Gross Amount","KiwiSaver Member","Employee Deduction","Employee Contributions", 
//       "Complying Fund Member","Fund Contribution","ESCT Tax Rate","Child Support Deduction","Payroll giving donation"}; 
//     
//     System.out.println("The Length is: "+payListForEmployer.length); 
//     
//     Order o[]=new Order[payListForEmployer.length]; 
//     for (int i = 0; i < payListForEmployer.length; i++) 
//     { 
//      o[i]=new Order(); 
//      o[i].setOrderName(payListForEmployer[i]); 
//      o[i].setOrderStatus("Pending"); 
//      m_orders.add(o[i]); 
//     } 
//    } 

       Thread.sleep(100); 
       Log.i("ARRAY", ""+ m_orders.size()); 
      } catch (Exception e) { 
       e.printStackTrace(); 
     } 
     runOnUiThread(returnRes); 
    } 
private Runnable returnRes = new Runnable() { 

     @Override 
     public void run() { 
      if(m_orders != null && m_orders.size() > 0){ 

       m_adapter.notifyDataSetChanged(); 
       for(int i=0;i<m_orders.size();i++) 
        m_adapter.add(m_orders.get(i)); 
      } 
      // m_ProgressDialog.dismiss(); 
      m_adapter.notifyDataSetChanged(); 
     } 
}; 

以及創建和調用線程這樣的：

viewOrders = new Runnable(){ 
     @Override 
     public void run() { 
      getOrders(); 
     } 
    }; 

    thread = new Thread(null, viewOrders, "MagentoBackground"); 
    thread.start(); 

所以會請你幫我給邏輯爲，或給一些代碼，可以幫助我在此要實現該功能。 謝謝。

Answer 1

在

我已經做了與自定義適配器設置的值你的問題的基礎。但現在我想要 實現功能，就像添加另一個數據，刪除顯示數據的 ，轉到下一個數據並返回到以前的數據。在所有那 功能只有藍色值應該改變。 （即代碼中的 orderStatus）。左一個值（orderName（））應保持爲 相同。那麼如何實現呢？

這是我在幾步之遙的答案，假設你是通過你的列表值VAR「A」：

你應該在你的列表中custom adapter延伸BaseAdapter。

2.設置你的初始值A，並把它傳遞給adapter和set it to the listview。

現在，如果你想添加一些更多的價值，然後add it in your var A和call thenotifyDataSetChanged()這將反映到列表中的新值。

4.如果您想要顯示下一個值，那麼也可以在A中設置合適的值，並調用notifyDataSetChanged()。

5.如果你想刪除然後setOnItemClickListener()到您的列表和點擊從A取出值並調用notifyDataSetChanged()。

注意：要保存列表值，您可以使用SQLite。您可以通過lisview關注本教程。