如何在编辑文本中设置日期

Question

我有一个编辑文本框，我有调用ontouchlistener，它显示一个自定义对话框，当我单击setdate按钮时，日期选择器上的日期应该设置在编辑文本上，并且对话框应该得到Dississe。但是我不知道如何从日期选择器中获取日期，以及如何在编辑文本框中设置。我在date.init（year,monthOfYear,dayOfMonth,new MyOnDateChangedListener（））中收到错误；并且错误为该行有多个标记-dayOfMonth无法解析为变量-year无法解析为变量-monthOfYear无法解析为变量

 et4.setOnTouchListener(new OnTouchListener() {
    final Dialog setdatedialog = new Dialog(DropboxActivity.this);                      
    public void onClick(View v) {
    }
    public boolean onTouch(View arg0, MotionEvent arg1) {
    setdatedialog.setContentView(R.layout.datedialog);
    setdatedialog.setTitle("select date of puchase");
    setdatedialog.setCancelable(true);
    setdatedialog.show();
    Button back = (Button)setdatedialog.findViewById(R.id.back3);
    back.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
    setdatedialog.dismiss();
    }
    });
    Button setdate=(Button)setdatedialog.findViewById(R.id.setdate);
    DatePicker date = (DatePicker)setdatedialog.findViewById(R.id.datePicker1);                         
    class MyOnDateChangedListener implements OnDateChangedListener {
        public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth){
            et4.setText( "" + dayOfMonth + "-" + (monthOfYear + 1) + "-" + year );
    }
    };
    date.init( year, monthOfYear, dayOfMonth, new MyOnDateChangedListener() );

    return false;
    }

Answer 1

您必须使用DatePickerDialog.onDateSetListener

 private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {
            public void onDateSet(DatePicker view, int year, int monthOfYear,
                    int dayOfMonth) {
                String date_selected = (monthOfYear + 1) + "/" + dayOfMonth + "/"
                        + year;

                editText.setText(date_selected);

            }
        };

按常规创建对话框

 @Override
        protected Dialog onCreateDialog(int id) {
            switch (id) {
            case 1:
                return new DatePickerDialog(this, mDateSetListener, cyear, cmonth,
                        cday);
            }
            return null;
        }

Answer 2

用xml定义editText和Button,并在您的activity中定义以下代码：

        editText=(EditText) findViewById(R.id.date);
        button=(Button) findViewById(R.id.play);
        button.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                showDialog(DATE_DIALOG_ID);
            }
        });

        Calendar c=Calendar.getInstance();
        mYear=c.get(Calendar.YEAR);
        mMonth=c.get(Calendar.MONTH);
        mDay=c.get(Calendar.DAY_OF_MONTH);

现在添加这两个函数来调用DatePicker对话框并在Edittext中设置日期

protected Dialog onCreateDialog(int id) {
        switch (id) {
        case DATE_DIALOG_ID:
            return new DatePickerDialog(this,
                        mDateSetListener,
                        mYear, mMonth, mDay);

        }

        return null;

    }
    private DatePickerDialog.OnDateSetListener mDateSetListener =new DatePickerDialog.OnDateSetListener() {

        public void onDateSet(DatePicker view, int year, int monthOfYear,
                int dayOfMonth) {
            mYear = year;
            mMonth = monthOfYear;
            mDay = dayOfMonth;
            editText.setText(new StringBuilder().append(mDay).append("/").append(mMonth+1).append("/").append(mYear));

        }

    };

全局定义：

    static final int DATE_DIALOG_ID = 0;
    private int mYear,mMonth,mDay;

这将帮助您在编辑文本中设置日期。希望这将对您有所帮助。