Android DatePickerDialog使用案例

DatePickerDialog提供了一个弹出的Dialog供用户选择日期。

在这里分享一下其使用方法，效果图如下：

DatePickerActivity.java

package com.yw.myapiupdate.datepicker;

import android.app.Activity;
import android.app.DatePickerDialog.OnDateSetListener;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.Toast;

import com.yw.myapiupdate.R;

public class DataPickerActivity extends Activity implements OnClickListener{
    private Button btn_datepicker;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.datepicker_layout);
        btn_datepicker = (Button)findViewById(R.id.datepicker_btn_date);
        btn_datepicker.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch(v.getId()){
        case R.id.datepicker_btn_date:
            DateUtils.getInstance().show(this, new OnDateSetListener() {
                
                @Override
                public void onDateSet(DatePicker view, int year, int monthOfYear,
                        int dayOfMonth) {
                    Toast.makeText(DataPickerActivity.this, year+"/"+(monthOfYear+1)+"/"+dayOfMonth, Toast.LENGTH_LONG).show();
                }
            });
            break;
        }
    }
}

dialog工具类：

package com.yw.myapiupdate.datepicker;

import java.util.Calendar;

import com.yw.myapiupdate.R;

import android.app.DatePickerDialog;
import android.content.Context;

/**
 * 日期和时间弹框工具类
 * @author yw-tony
 *
 */
public class DateUtils{
    public DatePickerDialog myDialog;
    Calendar calendar = Calendar.getInstance();
    private DateUtils(){}
    private static DateUtils instance = null;
    public static DateUtils getInstance(){
        if(instance == null){
            synchronized (DateUtils.class) {
                if(instance == null){
                    instance = new DateUtils();
                }
            }
        }
        return instance;
    }
    /**
     * 显示日期对话框
     */
    public void show(Context context,DatePickerDialog.OnDateSetListener callBack){
        myDialog = new DatePickerDialog(context, R.style.dialog, callBack, 
                calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));
        myDialog.show();
    }
}