//要实现接口:OnDateSetListener,OnTimeSetListener,OnTimeChangedListener对应的onDateSet,onTimeSet,onTimeChanged方法
public class DatePickerActivity extends Activity implements OnDateSetListener,OnTimeSetListener,OnTimeChangedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_date_picker);
date_time_pick();
}
private TextView mDateDisplay;
private int mYear;
private int mMonth;
private int mDay;
private int mHour;
private int mMinute;
static final int TIME_DIALOG_ID = 0;
static final int DATE_DIALOG_ID = 1;
private void date_time_pick(){
final Calendar calendar=Calendar.getInstance();//取得当前日期
mYear=calendar.get(Calendar.YEAR);//得到当前日期的年份
mMonth=calendar.get(Calendar.MONTH);
mDay=calendar.get(Calendar.DAY_OF_MONTH);
mHour=calendar.get(Calendar.HOUR_OF_DAY);
mMinute=calendar.get(Calendar.MINUTE);
mDateDisplay = (TextView) findViewById(R.id.txtTitle);
//日期选择
Button date_pickper_btn=(Button)findViewById(R.id.pickDate);
date_pickper_btn.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v){
showDialog(DATE_DIALOG_ID);
}
});
//日期选择
Button time_pickper_btn=(Button)findViewById(R.id.pickTime);
time_pickper_btn.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v){
showDialog(TIME_DIALOG_ID);
}
});
}
/* (non-Javadoc)
* @see android.app.Activity#onCreateDialog(int)
*/
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
return new TimePickerDialog(this,
this, mHour, mMinute, false);//最后一个参数如果为true,则表示24小时制,setIs24HourView(true)
case DATE_DIALOG_ID:
return new DatePickerDialog(this,
this,
mYear, mMonth, mDay);
}
return null;
}
/**
* 更新显示
*/
private void updateDisplay() {
mDateDisplay.setText(
new StringBuilder().append(mYear).append("年")
.append(mMonth + 1).append("月")
.append(mDay).append("日")
.append(pad(mHour)).append(":").append(pad(mMinute)));
}
private void updateDisplay(int hourOfDay, int minute) {
mDateDisplay.setText(
new StringBuilder()
.append(pad(hourOfDay)).append(":")
.append(pad(minute)));
}
/**
* 时间点格式
* @param i
* @return
*/
private static String pad(int i) {
if (i >= 10)
return String.valueOf(i);
else
return "0" + String.valueOf(i);
}
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
updateDisplay(hourOfDay, minute);
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
mYear = year;
mMonth = monthOfYear;
mDay = dayOfMonth;
updateDisplay();
}
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
mHour = hourOfDay;
mMinute = minute;
updateDisplay();
}