Android-DatePicker和TimePicker选择日期时间

datePicker.init() 

timePicker.setOnTimeChangedListener()

public class MainActivity extends Activity {
    //定义五个当前时间的变量
    private int year ;
    private int month ;
    private int day ;
    private int hour ;
    private int minute ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        DatePicker datePicker = (DatePicker) findViewById(R.id.datePicker);
        TimePicker timePicker = (TimePicker) findViewById(R.id.timePicker);
        //获取当前日期/时间
        Calendar calendar = Calendar.getInstance();
        year = calendar.get(Calendar.YEAR);
        month = calendar.get(Calendar.MONTH);
        day = calendar.get(Calendar.DAY_OF_MONTH);
        hour = calendar.get(Calendar.HOUR);
        minute = calendar.get(Calendar.MINUTE);
        //为DatePicker添加监听事件
        datePicker.init(year, month, day, new DatePicker.OnDateChangedListener() {
            @Override
            public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                MainActivity.this.year = year;
                MainActivity.this.month =month ;
                MainActivity.this.day = day;
                //显示用户选择的 日期 和 时间
                showDate(year,month,day,hour,minute);
            }
        });
        //TimePicker选择监听器
        timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
            @Override
            public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
                MainActivity.this.hour = hourOfDay;
                MainActivity.this.minute = minute;
            }
        });

    }
    private void showDate(int year ,int month , int day , int hour , int minute ){
        TextView textView = (TextView) findViewById(R.id.show);
        textView.setText("您选择的生日为：" + year+"年  " + month+"月  " + day+"日  " + hour +"时  " + minute +"分");
    }
}