android - 从 onTimeSet 上的 fragment 获取标签

Question

我有一个处理 fragment 的 MainActivity。在我做的其中一个 fragment 上:

enterBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            DialogFragment newFragment = new TimePickerFragment();
            newFragment.show(getActivity().getFragmentManager(), "timePickerExit");

        }
    });

    exitBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            DialogFragment newFragment = new TimePickerFragment();
            newFragment.show(getActivity().getFragmentManager(), "timePickerEnter");

        }
    });

在我的 MainActivity 上我得到了结果:

public class MainActivity extends AppCompatActivity implements TimePickerDialog.OnTimeSetListener

具有以下功能:

@Override
public void onTimeSet(TimePicker timePicker, int hourOfDay, int minute) {

//Who called it?
}

我怎么知道在 onTimeSet 上调用它的是 enterBtn 还是 exitBtn？

Answer 1

您可以为进入和退出按钮设置一个 bool 标志。

isExit = false;
enterBtn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {

        isExit = false;
        DialogFragment newFragment = new TimePickerFragment();
        newFragment.show(getActivity().getFragmentManager(), "timePickerExit");

    }
});

exitBtn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {

        isExit = true;
        DialogFragment newFragment = new TimePickerFragment();
        newFragment.show(getActivity().getFragmentManager(), "timePickerEnter");

    }
});

在Override方法中

@Override
public void onTimeSet(TimePicker timePicker, int hourOfDay, int minute) {

    if(isExit)
    {
        // Do your task here if Exit button click
    }
     else
    {
        // Do your task here if Enter button click
    }
}