5

私は、ユーザーが日付から日付日付までの2つの日付を選択する必要があるアプリケーションです。両方のフィールドは、現在の日付より前の日付を受け入れてはなりません。および単一の ondatesetListener。

私の問題は、現在までの日付が常に開始日以上である必要があるという条件を検証できないことです。助けてください。アクティブな日付がアクティブな終了日によって上書きされるため、開始日を取得できませありがとうございましたコードは次のとおりです。

public class Leave_form extends Activity 
{       
    private static EditText tvDislpayResult;
    private Button startPickDate;
    private Button endPickDate;
    private Calendar startDate;
    private Calendar endDate;
    //private EditText startDateDisplay;
    //private EditText endDateDisplay;
    static final int DATE_DIALOG_ID = 0;
    private TextView startDateDisplay;
    private TextView endDateDisplay;
    private TextView activeDateDisplay;
    private Calendar activeDate;
    private Calendar currentDate;
    private Calendar fromDate;

    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_leave_form);

        /*  capture our View elements for the start date function   */
        startDateDisplay = (EditText) findViewById(R.id.e_from_date);
        startPickDate = (Button) findViewById(R.id.Set_date1);

        /*get tday date  */   

        currentDate=Calendar.getInstance();
        Log.d("currentDate ",""+(currentDate.get(Calendar.DAY_OF_MONTH))+(currentDate.get(Calendar.MONTH)+1)+(currentDate.get(Calendar.YEAR)));

        /* get the current date */
        startDate = Calendar.getInstance();
        Log.d("startdate ",""+(startDate.get(Calendar.DAY_OF_MONTH))+(startDate.get(Calendar.MONTH)+1)+(startDate.get(Calendar.YEAR)));

        /* add a click listener to the button   */
        startPickDate.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View v) 
            {
                showDateDialog(startDateDisplay, startDate);
                Log.d("startDate-on click ",""+(startDate.get(Calendar.DAY_OF_MONTH))+(startDate.get(Calendar.MONTH)+1)+(startDate.get(Calendar.YEAR)));

            }
        });

        /* capture our View elements for the end date function */
        endDateDisplay = (EditText) findViewById(R.id.e_to_date);
        endPickDate = (Button) findViewById(R.id.Set_date2);

        /* get the current date */
        endDate = Calendar.getInstance();
        Log.d("endDate ",""+(endDate.get(Calendar.DAY_OF_MONTH))+(endDate.get(Calendar.MONTH)+1)+(endDate.get(Calendar.YEAR)));

        /* add a click listener to the button   */
        endPickDate.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View v)
            {
                showDateDialog(endDateDisplay, endDate);
                Log.d("endDate -on click",""+(endDate.get(Calendar.DAY_OF_MONTH))+(endDate.get(Calendar.MONTH)+1)+(endDate.get(Calendar.YEAR)));
            }
        });

        /* display the current date (this method is below)  */
       // updateDisplay(startDateDisplay, startDate);
       // updateDisplay(endDateDisplay, endDate);
    }

    private void updateDisplay(TextView dateDisplay, Calendar date) 
    {
        dateDisplay.setText(
                new StringBuilder()
                    // Month is 0 based so add 1
                    .append(date.get(Calendar.DAY_OF_MONTH) ).append("-")
                    .append(date.get(Calendar.MONTH)+1).append("-")
                    .append(date.get(Calendar.YEAR)).append(" "));

        Log.d("msg","date:"+(date.get(Calendar.DAY_OF_MONTH))+(date.get(Calendar.MONTH)+1)+(date.get(Calendar.YEAR)));

        fromDate=date;
    }

    public void showDateDialog(TextView dateDisplay, Calendar date)
    {
        Log.d("SDD", dateDisplay.getText().toString());
        Log.d("startdate ",""+(currentDate.get(Calendar.DAY_OF_MONTH))+(currentDate.get(Calendar.MONTH)+1)+(currentDate.get(Calendar.YEAR)));
       activeDateDisplay = dateDisplay;
        activeDate = date;
        showDialog(DATE_DIALOG_ID);
    }

    private OnDateSetListener dateSetListener = new OnDateSetListener()
    {
        @SuppressWarnings("deprecation")
        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
            activeDate.set(Calendar.YEAR, year);
            activeDate.set(Calendar.MONTH, monthOfYear);
            activeDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
            Log.d("activeDate-on dateset ",""+(activeDate.get(Calendar.DAY_OF_MONTH))+(activeDate.get(Calendar.MONTH)+1)+(activeDate.get(Calendar.YEAR)));

            if(currentDate.after(activeDate)|(currentDate.equals(activeDate)))
            {
                Toast toast=Toast.makeText(Leave_form.this, "Please select a valid date", Toast.LENGTH_LONG);
                toast.setGravity(Gravity.CENTER, 0, 0);
                toast.show();


            }
            else
            {
                if((currentDate.after(activeDate)|(currentDate.equals(activeDate)))&&(startDateDisplay.getText().toString()!=null))
                {
                    Log.d("startDate-on click ",""+(startDate.get(Calendar.DAY_OF_MONTH))+(startDate.get(Calendar.MONTH)+1)+(startDate.get(Calendar.YEAR)));
                    if(startDate.before(activeDate))
                    {
                        updateDisplay(activeDateDisplay, activeDate);
                    }

                    else
                    {
                        Toast.makeText(getApplicationContext(), "enter valid date", Toast.LENGTH_SHORT).show();
                        /*AlertDialog alertDialog=new AlertDialog.Builder(Leave_form.this).create();

                        alertDialog.setMessage("Choose a valid date");

                        alertDialog.setButton("OK", new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                // TODO Auto-generated method stub

                            }
                        });
                        alertDialog.show();*/
                    }
                }
                else
                {
                    updateDisplay(activeDateDisplay, activeDate);
                }

           }

            unregisterDateDisplay();
        }
    };

    private void unregisterDateDisplay() 
    {
        Log.d("startdate ",""+(currentDate.get(Calendar.DAY_OF_MONTH))+(currentDate.get(Calendar.MONTH)+1)+(currentDate.get(Calendar.YEAR)));
        Log.d("from date:","-"+activeDate.DAY_OF_MONTH+activeDate.MONTH+activeDate.YEAR);
        activeDateDisplay = null;
        activeDate = null;
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {

            case DATE_DIALOG_ID:
                Log.d("fromdate","msg");
                Log.d("id",""+DATE_DIALOG_ID);
                return new DatePickerDialog(this, dateSetListener, activeDate.get(Calendar.YEAR), activeDate.get(Calendar.MONTH), activeDate.get(Calendar.DAY_OF_MONTH));
        }
        return null;
    }

    @Override
    protected void onPrepareDialog(int id, Dialog dialog) {
        super.onPrepareDialog(id, dialog);
        switch (id) {
            case DATE_DIALOG_ID:
                Log.d("id",""+DATE_DIALOG_ID);
                ((DatePickerDialog) dialog).updateDate(activeDate.get(Calendar.YEAR), activeDate.get(Calendar.MONTH), activeDate.get(Calendar.DAY_OF_MONTH));
                break;
        }
    }

    public void leave(View view)
    {
        Intent intent1=new Intent(this,Rough.class);
        setContentView(R.layout.activity_rough);
        startActivity(intent1);
    }
    public void logout(View view)
    {
        Intent intent2=new Intent (this,MainActivity.class);
        setContentView(R.layout.activity_main);
        startActivity(intent2);
    }
}
4

4 に答える 4

3

そのようなコードを変更することをお勧めします:

if((currentDate.after(activeDate)|(currentDate.equals(activeDate)))&&(startDateDisplay.getText().toString()!=null))

次のような複数の if ブロックに:

if((currentDate.after(activeDate)||(currentDate.equals(activeDate))
    if(!startDateDisplay.getText().toString().equals(null))

違いに注意してください!

こちらの回答もご覧ください

于 2013-04-05T13:21:28.517 に答える
2

解決済み..

答えてくれた@Amitに感謝します。私の問題は解決され、魅力のように機能します。OnDateSetListenerセグメントのコードのみを変更しました。コードは次のとおりです。

 public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
    {


        activeDate.set(Calendar.YEAR, year);
        activeDate.set(Calendar.MONTH, monthOfYear);
        activeDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);



        Date fromDate,toDate;
        try
            {


                //checks if the date chosen by the user is greater than the current system date.Doesnt allow to choose past date
                if(currentDate.before(activeDate)||currentDate.equals(activeDate))
                {

                    //checks if the from date edit text is empty or not
                    if(startDateDisplay.getText().toString().isEmpty())
                    {

                        updateDisplay(activeDateDisplay, activeDate);

                    }
                    else
                    {


                        //converts the date in the from date edittextbox and active date to dd-mm-yyyy format
                        SimpleDateFormat sdf=new SimpleDateFormat("dd-MM-yyyy");

                        fromDate=sdf.parse(startDateDisplay.getText().toString());
                        Log.d("fromdate",""+fromDate);

                        String temp=(activeDate.get(Calendar.DAY_OF_MONTH))+"-"+(activeDate.get(Calendar.MONTH)+1)+"-"+(activeDate.get(Calendar.YEAR));
                        toDate=sdf.parse(temp);
                        Log.d("todate",""+toDate);


                        //checks if todate is greater or equal to from date 
                        if ((toDate.after(fromDate))||(toDate.equals(fromDate)))
                        {
                            updateDisplay(activeDateDisplay, activeDate);

                        }
                        else
                        {
                            Toast toast=new Toast(getBaseContext());
                            toast=Toast.makeText(Leave_form.this, "To date should be greater than From date", Toast.LENGTH_SHORT);
                            toast.setGravity(Gravity.CENTER, 0, 0);
                            toast.show();
                        }
                    }
                }

                else
                {
                    Toast toast=new Toast(getBaseContext());
                    toast=Toast.makeText(Leave_form.this, "Please enter a valid date", Toast.LENGTH_LONG);
                    toast.setGravity(Gravity.CENTER, 0, 0);
                    toast.show();
                }
            }
        catch(Exception e)
        {
            Log.e("excepion",e.getMessage().toString());
        }
        unregisterDateDisplay();
    }
};

回答ありがとうございます。:)

于 2013-04-09T08:51:34.993 に答える
0
package com.example.pickerdate;

import java.util.Calendar;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    private TextView mDateDisplay;
    private int mYear;
    private int year1;
    private int mMonth;
    private int mDay;
    private int month;
    private int day;
    static final int DATE_DIALOG_ID = 1;
    Button pickDate;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mDateDisplay = (TextView) findViewById(R.id.dateDisplay);
        pickDate = (Button) findViewById(R.id.pickDate);
        pickDate.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                System.out.println("hello3");
                showDialog(DATE_DIALOG_ID);

            }
        });

        System.out.println("hello1");
        final Calendar c = Calendar.getInstance();
        mYear = c.get(Calendar.YEAR);
        mMonth = c.get(Calendar.MONTH);
        mDay = c.get(Calendar.DAY_OF_MONTH);
        updateDisplay();
        year1 = mYear;
        month = mMonth;
        day = mDay;
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        DatePickerDialog _date = null;
        switch (id) {

        case DATE_DIALOG_ID:
            _date = new DatePickerDialog(this, mDateSetListener, mYear, mMonth,
                    mDay) {
                @Override
                public void onDateChanged(DatePicker view, int year,
                        int monthOfYear, int dayOfMonth) {
                    System.out.println("----------onDateChanged()-----------"
                            + mYear + "--" + year);
                    System.out.println("----------onDateChanged()-----------"
                            + mMonth + "--" + monthOfYear);
                    System.out.println("----------onDateChanged()-----------"
                            + mDay + "--" + dayOfMonth);

                    /*
                     * These lines of commented code used for only setting the
                     * maximum date on Date Picker..
                     * 
                     * if (year > mYear && year) view.updateDate(mYear, mMonth,
                     * mDay);
                     * 
                     * if (monthOfYear > mMonth && year == mYear )
                     * view.updateDate(mYear, mMonth, mDay);
                     * 
                     * if (dayOfMonth > mDay && year == mYear && monthOfYear ==
                     * mMonth) view.updateDate(mYear, mMonth, mDay);
                     */

                    // these below lines of code used for setting the maximum as
                    // well as minimum dates on Date Picker Dialog..

                    if ((mYear > year)
                            || ((mMonth > monthOfYear) && (mYear == year))
                            || ((mDay > dayOfMonth) && (mYear == year) && (mMonth == monthOfYear))) {
                        view.updateDate(year1, month, day);

                    }

                }
            };

        }
        System.out.println("hello5");
        return _date;
    }

    protected void onPrepareDialog(int id, Dialog dialog) {
        switch (id) {

        case DATE_DIALOG_ID:
            System.out.println("hello6");

            ((DatePickerDialog) dialog).updateDate(mYear, mMonth, mDay);
            break;
        }
    }

    private void updateDisplay() {
        System.out.println("hello2");
        mDateDisplay.setText(new StringBuilder()
                // Month is 0 based so add 1
                .append(mMonth + 1).append("-").append(mDay).append("-")
                .append(mYear).append(" "));
    }

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

        public void onDateSet(DatePicker view, int year, int monthOfYear,
                int dayOfMonth) {
            System.out.println("hello7");

            mYear = year;
            mMonth = monthOfYear;
            mDay = dayOfMonth;
            System.out.println("year=" + year);
            System.out.println("month=" + monthOfYear);
            System.out.println("day=" + dayOfMonth);
            updateDisplay();
        }
    };
}
于 2013-07-26T05:50:25.320 に答える