[Android]_ch5.7_DatePickerDialog日期挑選元件

[Android]_ch5.7_DatePickerDialog日期挑選元件

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[Android]_ch5.7_DatePickerDialog日期挑選元件

package com.example.ch1_datepickerdialog;



import java.util.Calendar;



import android.R.integer;

import android.app.Activity;

import android.app.DatePickerDialog;

import android.app.DatePickerDialog.OnDateSetListener;

import android.app.Dialog;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.DatePicker;

import android.widget.TextView;





public class MainActivity extends Activity {

Button btn1;

TextView tv1;

int Y,M,D;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn1=(Button)findViewById(R.id.button1);

        tv1=(TextView)findViewById(R.id.textView1);

        btn1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

showDialog(1);

}

});

        Calendar calendar=Calendar.getInstance();

        Y=calendar.get(Calendar.YEAR);

        M=calendar.get(Calendar.MONTH);

        D=calendar.get(Calendar.DAY_OF_MONTH);

        tv1.setText("當前日期: "+Y+"-"+(M+1)+"-"+D);

    }

@Override

@Deprecated

protected Dialog onCreateDialog(int id, Bundle args) {

switch (id) {

case 1:

return new DatePickerDialog(MainActivity.this, new OnDateSetListener() {

@Override

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

tv1.setText("挑選日期:"+year+"-"+(monthOfYear+1)+"-"+dayOfMonth);

}

}, Y, M, D);



}

return super.onCreateDialog(id, args);

}



}