列表視圖與複選框和按鈕使用Android中的陣列適配器

Question

我使用自定義列表視圖來顯示來自sqlite數據庫的數據。我的列表項目 有textviews，按鈕，複選框。請給我建議基於布爾值的複選框應該是選中/取消該適配器將執行以下任務，

1. 所有的字符串值更新equalesnt textviews
2. 。

3. 當我點擊按鈕，它會帶我到新的屏幕，並通過按鈕的ID。

   請告訴我現在該做什麼。新的想法也受到歡迎。

   按照我的代碼。

   public class GuestListAdapter extends BaseAdapter implements OnClickListener{ 
        Context context; 
        ArrayList<String> arrayListFirstName; 
        ArrayList<String> arrayListLastName; 
        ArrayList<String> arrayListGuests; 
        ArrayList<String> arrayCustomOne; 
        ArrayList<String> arrTicketId; 
        private ArrayList<Boolean> checks=new ArrayList<Boolean>(); 
        public GuestListAdapter(Context mcontext, ArrayList<String> arrListFN, 
          ArrayList<String> arrListLN, ArrayList<String> arrListGuest, 
          ArrayList<String> arrTicketID,ArrayList<String> arrCustOne) { 
         arrayListFirstName = arrListFN; 
         arrayListLastName = arrListLN; 
         arrayListGuests = arrListGuest; 
         arrayCustomOne = arrCustOne; 
         context = mcontext; 
   
         for (int i = 0; i < arrayListFirstName.size(); i++) { 
          checks.add(i, false); 
         } 
        } 
   
        @Override 
        public int getCount() { 
         // TODO Auto-generated method stub 
         return arrayListFirstName.size(); 
        } 
   
        @Override 
        public Object getItem(int position) { 
         // TODO Auto-generated method stub 
         return arrayListFirstName.get(position); 
        } 
   
        @Override 
        public long getItemId(int position) { 
         // TODO Auto-generated method stub 
         return position; 
        } 
   
        @Override 
        public View getView(int position, View view, ViewGroup parent) { 
         // TODO Auto-generated method stub 
         if (view == null) { 
          LayoutInflater inflater = LayoutInflater.from(parent.getContext()); 
          view = inflater.inflate(R.layout.guest_list_item, parent, false); 
         } 
   
         final String dataModel = (String) arrayListFirstName.get(position); 
   
         TextView txtFirstName = (TextView) view 
           .findViewById(R.id.txt_firstname); 
         txtFirstName.setText(arrayListFirstName.get(position)); 
         TextView txtLastName = (TextView) view.findViewById(R.id.txt_lastname); 
         txtLastName.setText(arrayListLastName.get(position)); 
         TextView txtGuestCount = (TextView) view 
           .findViewById(R.id.txt_guest_count); 
         txtGuestCount.setText(arrayListGuests.get(position)); 
         Button btnInfo = (Button) view.findViewById(R.id.btn_info); 
         // btnInfo.setId(position); 
         CheckBox checkBoxCheckins = (CheckBox) view 
           .findViewById(R.id.checkBoxIsCheckedIn); 
         checkBoxCheckins.setTag(Integer.valueOf(position)); 
   
         btnInfo.setOnClickListener(new OnClickListener() { 
   
          @Override 
          public void onClick(View v) { 
           // int id = Integer.parseInt(v.getTag().toString()); 
   
           // Log.d("", "Clicked ID "+id); 
           Intent intent = new Intent(context, InfoScreen.class); 
           context.startActivity(intent); 
           System.out.println("Adap button **********"); 
   
          } 
         }); 
         checkBoxCheckins 
           .setOnCheckedChangeListener(new OnCheckedChangeListener() { 
   
            @Override 
            public void onCheckedChanged(CompoundButton buttonView, 
              boolean isChecked) { 
             System.out.println("Adap checked **********"); 
             Integer integ = (Integer)buttonView.getTag(); 
   
              checks.set(integ.intValue(), false); 
            } 
           }); 
         if (checks.get(position)) { 
          checkBoxCheckins.setChecked(checks.get(position)); 
           // do some stuff if wanted.. 
          } else { 
           checkBoxCheckins.setChecked(checks.get(position)); 
           // do some stuff if wanted.. 
          } 
         return view; 
        } 
   
        @Override 
        public void onClick(View view) { 
         // TODO Auto-generated method stub 
         Integer index = (Integer)view.getTag(); 
         boolean state = checks.get(index.intValue()); 
   
         checks.set(index.intValue(), !state); 
        } 
   
       } 
   
   
   this is my setter class 
   
   public class GuestList { 
   
       String mFirstName; 
       String mLastName; 
       String mTicketI; 
       String mGuestCount; 
   
       public String getmFirstName() { 
        return mFirstName; 
       } 
   
       public void setmFirstName(String mFirstName) { 
        this.mFirstName = mFirstName; 
       } 
   
       public String getmLastName() { 
        return mLastName; 
       } 
   
       public void setmLastName(String mLastName) { 
        this.mLastName = mLastName; 
       } 
   
       public String getmTicketI() { 
        return mTicketI; 
       } 
   
       public void setmTicketI(String mTicketI) { 
        this.mTicketI = mTicketI; 
       } 
   
       public String getmGuestCount() { 
        return mGuestCount; 
       } 
   
       public void setmGuestCount(String mGuestCount) { 
        this.mGuestCount = mGuestCount; 
       } 
   
   } 
   

   在列表視圖類的ArrayList發送這樣，

   cursorAdapter = new GuestListAdapter(GuestListScreen.this, 
         arrFirstName, arrLastName, arrGuests, arrTicketId, arrCustomOne); 
       listViewGuests.setAdapter(cursorAdapter); 
   

Answer 1

你應該使用BaseAdapter這一點。創建一個類調用MyAdapter並擴展BaseAdater。在該類中重寫所需的方法。並在類的getView方法中膨脹你的xml文件並根據該位置放置數據。

如果值來自數據庫，然後採取光標並迭代它，並獲得所需的值。

希望這有助於