android - 我怎么知道在对话框片段类中点击了哪个editText

Question

我有两个 editText 视图，当用户单击第一个 editText 时，会打开一个对话框片段窗口并且用户选择日期。第二个editText也是如此。选择的日期应该在editText中“写入”。当我有一个editText时，这就像一个魅力。但是我怎么知道点击了哪个 ediText，因为它们在同一个活动中，我必须在 dialogFragment 类中编辑 editText？

我已经看到了一些其他的答案，但其中一些确实已经过时 - 已弃用，而另一些则对我没有帮助。

这是我的代码：

开始上课：

public class Start extends FragmentActivity {

private EditText ddEdit;
private EditText adEdit;
int year;
int month;
int day;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_start);

}

public void showDatePickerDialog(View v) {
    switch (v.getId()) {
        //i know this is not correct
    case R.id.etDepDate:
        DialogFragment depFragment = new DatePick();
        depFragment.show(getFragmentManager(), "datepicker1");
        break;
    case R.id.etArrDate:
        DialogFragment arrFragment = new DatePick();
        arrFragment.show(getFragmentManager(), "datepicker2");
        break;
    }

}

DatePick 类：

  public class DatePick extends DialogFragment implements
    DatePickerDialog.OnDateSetListener {
private EditText ddEdit;
private EditText adEdit;

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    // Use the current date as the default date in the picker
    final Calendar c = Calendar.getInstance();
    int year = c.get(Calendar.YEAR);
    int month = c.get(Calendar.MONTH);
    int day = c.get(Calendar.DAY_OF_MONTH);

    // Create a new instance of DatePickerDialog and return it
    return new DatePickerDialog(getActivity(), this, year, month, day);
}

public void onDateSet(DatePicker view, int year, int month, int day) {

            String date = new String(day + "/" + (month + 1) + "/" + year);
         //????
         //how I know here which view was clicked so I can call the editTextById method?
        //??????



}

public void editTextById(View v, String date) {

    switch (v.getId()) {
    case R.id.etDepDate:
        setDate(date, ddEdit);
        setDate(date, adEdit);
        break;

    case R.id.etArrDate:
        setDate(date, adEdit);
        break;
    }
}

public void setDate(String date, EditText editText) {
    editText.setText(date);

}

@Override
public void show(FragmentManager manager, String tag) {
    // TODO Auto-generated method stub
    super.show(manager, tag);
}
}

Answer 1

您可以在使用 newInstance(viewToBeEdited) 创建对话框时传递视图。
在 showDatePickerDialog 中以这种方式修改您创建的对话框

public void showDatePickerDialog(View v) {
    depFragment = DatePick.newInstance(v);
    depFragment.show(getFragmentManager(), "datepicker1");
    break;
}

您的 DatePick Dialog 必须实现静态方法 newInstance(Viev v)

public class DatePick extends DialogFragment implements DatePickerDialog.OnDateSetListener {

   private EditText editableView;

   public static DatePick newInstance(View v) {
       DatePick dialog = new DatePick();
       dialog.editableView = v;
       return dialog;
   }

   @Override
   public Dialog onCreateDialog(Bundle savedInstanceState) {
      <Your code>
   }

   public void onDateSet(DatePicker view, int year, int month, int day) {

        final String date = new String(day + "/" + (month + 1) + "/" + year);
        getActivity().runOnUIThread(new Runnable() {
            public run() {
                editableView.setText(date);
            }
        });
   }
}

我没有测试它，所以可能会有一些拼写错误，但在这些情况下我通常会这样做。

Answer 2

为每个编辑文本设置一个标志，并在点击()时更改标志