android - 使用 alertdialog 构建器的 setCursor 方法显示数据库中的项目列表时如何添加多个列？

Question

您好，我使用以下代码构建了一个对话框，可以从我的通话记录中选择一个联系人，但它只显示每个项目中的电话号码。我如何更改它以在每个项目中显示“联系人姓名”+“电话号码”？

我试过了，但 builder.setCursor() 方法似乎只允许我添加一列，我如何添加多列？谢谢!

public class MainActivity extends Activity {
    @Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button btnPick = (Button) findViewById(R.id.btnPick);
    btnPick.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            String[] strFields = { android.provider.CallLog.Calls._ID,
                    android.provider.CallLog.Calls.NUMBER,
                    android.provider.CallLog.Calls.CACHED_NAME, };
            String strOrder = android.provider.CallLog.Calls.DATE + " DESC";
            final Cursor cursorCall = getContentResolver().query(
                    android.provider.CallLog.Calls.CONTENT_URI, strFields,
                    null, null, strOrder);

            AlertDialog.Builder builder = new AlertDialog.Builder(
                    MainActivity.this);
            builder.setTitle("Select recent contact");
            android.content.DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialogInterface,
                        int item) {
                    cursorCall.moveToPosition(item);
                    Toast.makeText(
                            MainActivity.this,
                            cursorCall.getString(cursorCall
                                    .getColumnIndex(android.provider.CallLog.Calls.NUMBER)),
                            Toast.LENGTH_LONG).show();
                    cursorCall.close();
                    return;
                }
            };
            builder.setCursor(cursorCall, listener,
                    android.provider.CallLog.Calls.NUMBER);
            builder.create().show();
        }
    });
}

Answer 1

这是我的解决方案。您可以对其进行修改和改编。

public void getCallLog() {

    String[] callLogFields = { CallLog.Calls._ID,
            CallLog.Calls.NUMBER,
            CallLog.Calls.CACHED_NAME,
            CallLog.Calls.DATE};
    String ORDER = CallLog.Calls.DATE + " DESC";
    String WHERE = CallLog.Calls._ID + " IN (SELECT " + CallLog.Calls._ID + " FROM calls GROUP BY " + CallLog.Calls.NUMBER + ")";


    Cursor cursor = getContentResolver().query(CallLog.Calls.CONTENT_URI, callLogFields, WHERE, null, ORDER);
    AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);



    if(cursor == null || !cursor.moveToFirst()) return;
    final List<Map<String, String>> data = new ArrayList<>();
    do
    {

        long time = cursor.getLong(cursor.getColumnIndex(CallLog.Calls.DATE));

        SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy HH:mm", Locale.getDefault());
        Date resultdate = new Date(time);
        String date = sdf.format(resultdate);
        String number = cursor.getString(cursor.getColumnIndex(CallLog.Calls.NUMBER));
        String name = cursor.getString(cursor.getColumnIndex(CallLog.Calls.CACHED_NAME));

        Map<String, String> map = new HashMap<>(4);
        map.put("number", number);
        map.put("name", name);
        map.put("visible_name", name == null ? number : name);
        map.put("date", date);
        data.add(map);
    } while (cursor.moveToNext());
    if(!cursor.isClosed()) cursor.close();

    DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialogInterface, int item) {
            String number = data.get(item).get("number");
            Log.v("dva.re.number", number);
        }
    };

    SimpleAdapter adapter = new SimpleAdapter(this, data,
            android.R.layout.simple_list_item_2,
            new String[] {"visible_name", "date"},
            new int[] {android.R.id.text1,
                    android.R.id.text2,
            });
    dialogBuilder.setAdapter(adapter, listener);
    dialogBuilder.setTitle("Choose from Call Log");
    dialogBuilder.create().show();
}