片段標籤內的按鈕

Question

我有3個選項卡;其中一個選項卡必須使用內容解析器讀取通話記錄。我在佈局中放置了4個按鈕，分別以「錯過」，「傳入」，「傳出」，「所有呼叫」來顯示這些呼叫記錄。當我點擊「未接電話」按鈕時，它只顯示listView中的未接電話。我現在如何爲此編碼？如何使用這些按鈕來顯示？

public class TabFragment2 extends Fragment { 

    Button b1,b2,b3,b4; 
    private Toolbar supportActionBar; 
    private FragmentManager supportFragmentManager; 

    ArrayList<HashMap<String, String>> Calllist1 = new ArrayList<>(); 
    ListView callListView; 
    ArrayAdapter arrayAdapter; 


    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.activity_call, container, false); 
     callListView = (ListView) view.findViewById(R.id.listView1); 
     Button b1 = (Button) view.findViewById(R.id.button); 
     /* arrayAdapter = new ArrayAdapter<String>(getActivity().getApplicationContext(), android.R.layout.simple_list_item_1, Calllist1); 
     callListView.setAdapter(arrayAdapter);*/ 
     getCallDetails(); 
     b1.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

      } 
     }); 
     return view; 



    } 

    private void getCallDetails() { 

     String strOrder = CallLog.Calls.DATE + " DESC"; 
     Uri callUri = Uri.parse("content://call_log/calls"); 
     ContentResolver ca = getActivity().getContentResolver(); 
     Cursor managedCursor = getActivity().getContentResolver().query(callUri, null, null, null, strOrder); 
     int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER); 
     int type = managedCursor.getColumnIndex(CallLog.Calls.TYPE); 
     int date = managedCursor.getColumnIndex(CallLog.Calls.DATE); 
     int duration = managedCursor.getColumnIndex(CallLog.Calls.DURATION); 

     while (managedCursor != null && managedCursor.moveToNext()) { 
      String phNum = managedCursor.getString(number); 
      String callTypeCode = managedCursor.getString(type); 
      String strcallDate = managedCursor.getString(date); 
      SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yy HH:mm"); 
      long seconds = managedCursor.getLong(date); 
      String dateString = formatter.format(new Date(seconds)); 
      String callDuration = managedCursor.getString(duration); 
      String callType = null; 

     HashMap<String, String> callMap = new HashMap<String, String>(); 
      callMap.put("NUMBER", phNum); 
      callMap.put("CALL", callTypeCode); 
      callMap.put("DATE", dateString); 
      callMap.put("DURATION", callDuration); 
      Calllist1.add(callMap); 

      int callcode = Integer.parseInt(callTypeCode); 
      switch (callcode) { 
       case CallLog.Calls.OUTGOING_TYPE: 
        callType = "Outgoing"; 
        break; 
       case CallLog.Calls.INCOMING_TYPE: 
        callType = "Incoming"; 
        break; 
       case CallLog.Calls.MISSED_TYPE: 
        callType = "Missed"; 
        break; 

      } 

     } 
     managedCursor.close(); 
     callListView.setAdapter(new CallAdapter(getActivity().getApplicationContext(), android.R.layout.simple_list_item_1, Calllist1)); 

    } 

} 

Answer 1

我對您的代碼進行了一些更改。請嘗試。

public class TabFragment2 extends Fragment { 

    Button b1,b2,b3,b4; 
    private Toolbar supportActionBar; 
    private FragmentManager supportFragmentManager; 

    ArrayList<HashMap<String, String>> callListDisplay = new ArrayList<>(); 
    ArrayList<HashMap<String, String>> callMissed = new ArrayList<>(); 
    ArrayList<HashMap<String, String>> callOutgoing = new ArrayList<>(); 
    ArrayList<HashMap<String, String>> callIncoming = new ArrayList<>(); 
    ListView callListView; 
    CallAdapter arrayAdapter; 


    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.activity_call, container, false); 
     callListView = (ListView) view.findViewById(R.id.listView1); 
     Button b1 = (Button) view.findViewById(R.id.button); 
     arrayAdapter= new CallAdapter(getActivity(), android.R.layout.simple_list_item_1, callListDisplay) 
     callListView.setAdapter(arrayAdapter); 
     getCallDetails(); 
     // to load initial values 
     loadValues(0); 
     b1.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       loadValues(0); 
      } 
     }); 
     b2.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
    loadValues(1); 
      } 
     }); 
     b3.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       loadValues(2); 
      } 
     }); 
     return view; 
    } 

    private void loadValues(int type){ 
     if(type==0){ 
      callListDisplay.clear(); 
      callListDisplay.addAll(callMissed); 
      arrayAdapter.notifyDataSetChanged(); 
     }else if(type==1){ 
      callListDisplay.clear(); 
      callListDisplay.addAll(callOutgoing); 
      arrayAdapter.notifyDataSetChanged(); 
     }else if(type==2){ 
      callListDisplay.clear(); 
      callListDisplay.addAll(callIncoming); 
      arrayAdapter.notifyDataSetChanged(); 
     } 
    } 

    private void getCallDetails() { 

     String strOrder = CallLog.Calls.DATE + " DESC"; 
     Uri callUri = Uri.parse("content://call_log/calls"); 
     ContentResolver ca = getActivity().getContentResolver(); 
     Cursor managedCursor = getActivity().getContentResolver().query(callUri, null, null, null, strOrder); 
     int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER); 
     int type = managedCursor.getColumnIndex(CallLog.Calls.TYPE); 
     int date = managedCursor.getColumnIndex(CallLog.Calls.DATE); 
     int duration = managedCursor.getColumnIndex(CallLog.Calls.DURATION); 

     while (managedCursor != null && managedCursor.moveToNext()) { 
      String phNum = managedCursor.getString(number); 
      String callTypeCode = managedCursor.getString(type); 
      String strcallDate = managedCursor.getString(date); 
      SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yy HH:mm"); 
      long seconds = managedCursor.getLong(date); 
      String dateString = formatter.format(new Date(seconds)); 
      String callDuration = managedCursor.getString(duration); 
      String callType = null; 

     HashMap<String, String> callMap = new HashMap<String, String>(); 
      callMap.put("NUMBER", phNum); 
      callMap.put("CALL", callTypeCode); 
      callMap.put("DATE", dateString); 
      callMap.put("DURATION", callDuration); 


      int callcode = Integer.parseInt(callTypeCode); 
      switch (callcode) { 
       case CallLog.Calls.OUTGOING_TYPE: 
        callType = "Outgoing"; 
        callOutgoing.add(callMap); 
        break; 
       case CallLog.Calls.INCOMING_TYPE: 
        callType = "Incoming"; 
        callIncoming.add(callMap); 
        break; 
       case CallLog.Calls.MISSED_TYPE: 
        callType = "Missed"; 
        callMissed.add(callMap); 
        break; 

      } 

     } 
     managedCursor.close(); 


    } 

    } 

總是建議通過擴展基礎適配器來使用我們自己的適配器類。這將使我們對視圖有更多的控制。