java - 时间选择器对话框

Question

我正在使用多个带有 onclick 监听器的 TextView ，这些监听器会将我定向到 TimePicker 对话框。

但是看完教程后，我似乎不知道如何编写代码，

    textview1.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            showDialog(TIME_DIALOG_ID);
        }
    });

    textview2.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            showDialog(TIME_DIALOG_ID);
        }
    });

显示对话框:

@Override
protected Dialog onCreateDialog(int id) {
    switch (id) {
    case TIME_DIALOG_ID:
        return new TimePickerDialog(this,
                mTimeSetListener, mHour, mMinute, true);
    }
    return null;
}

最后，

private TimePickerDialog.OnTimeSetListener mTimeSetListener =
        new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(android.widget.TimePicker view,
                    int hourOfDay, int minute) {
                mHour = hourOfDay;
                mMinute = minute;
            }
        };

现在，对于在TimePickerDialog.OnTimeSetListener回调后调用时间选择器的textview的.setText，我应该如何编写代码？

答案很简单，但我缺乏 OOP 知识并且仍在学习中。谢谢...

Answer 1

您需要使用全局变量。比如说，String fromWhere="";

现在，

    textview1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                fromWhere="textview1";
                showDialog(TIME_DIALOG_ID);
            }
    });

    textview2.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                fromWhere="textview2";
                showDialog(TIME_DIALOG_ID);
            }
    });
    ...
    private TimePickerDialog.OnTimeSetListener mTimeSetListener =
            new TimePickerDialog.OnTimeSetListener() {
                @Override
                public void onTimeSet(android.widget.TimePicker view,
                        int hourOfDay, int minute) {

                    if(fromWhere.equals(textview1))
                           // set hour and minute to according variable and textview
                    else if(fromWhere.equals(textview2))
                           // set hour and minute to according variable and textview
                    .. //so on for others
                    //mHour = hourOfDay;
                    //mMinute = minute;
                    fromWhere="";
                }
    };