DatePickerDialog日历对话框/选择器

import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
    private String[] weeks={"星期日","星期一","星期二","星期三","星期四",  "星期五","星期六",
    };
    public void onClick01(final View v){
        //获得日历对象
        final Calendar c=Calendar.getInstance();
        int year=c.get(Calendar.YEAR);
        int monthOfYear=c.get(Calendar.MONTH);
        int dayOfMonth=c.get(Calendar.DAY_OF_MONTH);
        //创建日历对话框
        DatePickerDialog dialog=new DatePickerDialog(this,new OnDateSetListener() {
            @Override
            public void onDateSet(
            DatePicker view,  int year, int monthOfYear,int dayOfMonth) {
            c.set(Calendar.YEAR, year);
            c.set(Calendar.MONTH, monthOfYear);
            c.set(Calendar.DAY_OF_MONTH,dayOfMonth);
            int week=c.get(Calendar.DAY_OF_WEEK);
            ((Button)v).
             setText(year+"-"+$(monthOfYear+1)+"-"+$(dayOfMonth)+weeks[week-1]);
            }
        },  year, monthOfYear,dayOfMonth);
        //显示对话框
        dialog.show();
    }

    private String $(int n){//两位数以下加0字符
        return n<10?"0"+
        n:String.valueOf(n);
    }