Android 未刷新游标加载程序数据

我正在使用

CursorLoader

和

ContentProvider

将数据提取到游标中。 据我所知，游标加载器注册了一个内容观察者，因此每当游标的基础数据发生变化时，都应该调用加载器的

onLoadFinished

在我的代码中，一个新行插入到

content://com.example.phonehistory/call

uri，每当呼叫状态改变时（例如，呼叫处于传入状态，然后被切断（

EXTRA\u state\u IDLE

in broadcastReceiver））。每当我得到这个状态改变时，我就插入数据

问题是插入新行时没有调用加载程序的

onLoadFinished

请注意，当我收到此问题时，我的应用程序正在运行

加载器回调

@Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        Toast.makeText(this, "onCreate for loader", Toast.LENGTH_SHORT).show();

        Uri uri1 = Uri.parse("content://com.example.phonehistory/call");
         CursorLoader loader = new CursorLoader(
                 this,
                 uri1,
                 null,
                 null,
                 null,
                 null);
         return loader;
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {

        Toast.makeText(this, "onload finished", Toast.LENGTH_SHORT).show();
        if(loader.getId()==1){
            showDataChanges(cursor);
        }
    }

要插入数据的广播接收器：

@Override
public void onReceive(Context c, Intent i) {
    // TODO Auto-generated method stub
    Bundle bundle=i.getExtras();

    if(bundle==null)
        return;

    SharedPreferences sp=c.getSharedPreferences("ZnSoftech", Activity.MODE_PRIVATE);

    String s=bundle.getString(TelephonyManager.EXTRA_STATE);

    if(i.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL))
    {
        String number=i.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
        sp.edit().putString("number", number).commit();
        sp.edit().putString("state", s).commit();
    }

    else if(s.equals(TelephonyManager.EXTRA_STATE_RINGING))
    {
        String number=bundle.getString("incoming_number");
        sp.edit().putString("number", number).commit();
        sp.edit().putString("state", s).commit();
    }

    else if(s.equals(TelephonyManager.EXTRA_STATE_OFFHOOK))
    {
        sp.edit().putString("state", s).commit();
    }

    else if(s.equals(TelephonyManager.EXTRA_STATE_IDLE))
    {
        String state=sp.getString("state", null);
        if(!state.equals(TelephonyManager.EXTRA_STATE_IDLE))
        {
            sp.edit().putString("state", null).commit();
        }
        sp.edit().putString("state", s).commit();
        getCalldetailsNow(c);

    }
}

private void getCalldetailsNow(Context context) {
    // TODO Auto-generated method stub

    Cursor managedCursor = context.getContentResolver().query(
            CallLog.Calls.CONTENT_URI, null, null, null,
            android.provider.CallLog.Calls.DATE + " DESC");

    int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER);
    int duration1 = managedCursor
            .getColumnIndex(CallLog.Calls.DURATION);
    int type1 = managedCursor.getColumnIndex(CallLog.Calls.TYPE);
    int date1 = managedCursor.getColumnIndex(CallLog.Calls.DATE);

    if (managedCursor.moveToFirst() == true) {
        String phNumber = managedCursor.getString(number);
        String callDuration = managedCursor.getString(duration1);

        String type = managedCursor.getString(type1);
        String date = managedCursor.getString(date1);

        String dir = null;
        int dircode = Integer.parseInt(type);
        switch (dircode) {
        case CallLog.Calls.OUTGOING_TYPE:
            dir = "OUTGOING";
            break;
        case CallLog.Calls.INCOMING_TYPE:
            dir = "INCOMING";
            break;
        case CallLog.Calls.MISSED_TYPE:
            dir = "MISSED";
            break;
        default:
            dir = "MISSED";
            break;
        }

        SimpleDateFormat sdf_date = new SimpleDateFormat("dd/MM/yyyy");
        SimpleDateFormat sdf_time = new SimpleDateFormat("h:mm a");
        // SimpleDateFormat sdf_dur = new SimpleDateFormat("KK:mm:ss");

        String dateString = sdf_date.format(new Date(Long
                .parseLong(date)));
        String timeString = sdf_time.format(new Date(Long
                .parseLong(date)));
        // String duration_new=sdf_dur.format(new
        // Date(Long.parseLong(callDuration)));
        ContentValues values = new ContentValues();

        values.put("number", phNumber);
        values.put("date", dateString);
        values.put("time", timeString);
        values.put("duration", callDuration);
        values.put("type", dir);

        Uri uri1 = Uri.parse("content://com.example.phonehistory/call");

        context.getContentResolver().insert(uri1, values);
    }

    managedCursor.close();
}

我已经花了好几个小时，但无法找出问题所在

@Override
public void onReceive(Context c, Intent i) {
    // TODO Auto-generated method stub
    Bundle bundle=i.getExtras();

    if(bundle==null)
        return;

    SharedPreferences sp=c.getSharedPreferences("ZnSoftech", Activity.MODE_PRIVATE);

    String s=bundle.getString(TelephonyManager.EXTRA_STATE);

    if(i.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL))
    {
        String number=i.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
        sp.edit().putString("number", number).commit();
        sp.edit().putString("state", s).commit();
    }

    else if(s.equals(TelephonyManager.EXTRA_STATE_RINGING))
    {
        String number=bundle.getString("incoming_number");
        sp.edit().putString("number", number).commit();
        sp.edit().putString("state", s).commit();
    }

    else if(s.equals(TelephonyManager.EXTRA_STATE_OFFHOOK))
    {
        sp.edit().putString("state", s).commit();
    }

    else if(s.equals(TelephonyManager.EXTRA_STATE_IDLE))
    {
        String state=sp.getString("state", null);
        if(!state.equals(TelephonyManager.EXTRA_STATE_IDLE))
        {
            sp.edit().putString("state", null).commit();
        }
        sp.edit().putString("state", s).commit();
        getCalldetailsNow(c);

    }
}

private void getCalldetailsNow(Context context) {
    // TODO Auto-generated method stub

    Cursor managedCursor = context.getContentResolver().query(
            CallLog.Calls.CONTENT_URI, null, null, null,
            android.provider.CallLog.Calls.DATE + " DESC");

    int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER);
    int duration1 = managedCursor
            .getColumnIndex(CallLog.Calls.DURATION);
    int type1 = managedCursor.getColumnIndex(CallLog.Calls.TYPE);
    int date1 = managedCursor.getColumnIndex(CallLog.Calls.DATE);

    if (managedCursor.moveToFirst() == true) {
        String phNumber = managedCursor.getString(number);
        String callDuration = managedCursor.getString(duration1);

        String type = managedCursor.getString(type1);
        String date = managedCursor.getString(date1);

        String dir = null;
        int dircode = Integer.parseInt(type);
        switch (dircode) {
        case CallLog.Calls.OUTGOING_TYPE:
            dir = "OUTGOING";
            break;
        case CallLog.Calls.INCOMING_TYPE:
            dir = "INCOMING";
            break;
        case CallLog.Calls.MISSED_TYPE:
            dir = "MISSED";
            break;
        default:
            dir = "MISSED";
            break;
        }

        SimpleDateFormat sdf_date = new SimpleDateFormat("dd/MM/yyyy");
        SimpleDateFormat sdf_time = new SimpleDateFormat("h:mm a");
        // SimpleDateFormat sdf_dur = new SimpleDateFormat("KK:mm:ss");

        String dateString = sdf_date.format(new Date(Long
                .parseLong(date)));
        String timeString = sdf_time.format(new Date(Long
                .parseLong(date)));
        // String duration_new=sdf_dur.format(new
        // Date(Long.parseLong(callDuration)));
        ContentValues values = new ContentValues();

        values.put("number", phNumber);
        values.put("date", dateString);
        values.put("time", timeString);
        values.put("duration", callDuration);
        values.put("type", dir);

        Uri uri1 = Uri.parse("content://com.example.phonehistory/call");

        context.getContentResolver().insert(uri1, values);
    }

    managedCursor.close();
}