APIDeMO 时间Wight设置

/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.example.android.apis.view; import com.example.android.apis.R; import android.app.Activity; import android.app.DatePickerDialog; import android.app.TimePickerDialog; import android.app.Dialog; import android.os.Bundle; import android.widget.TextView; import android.widget.Button; import android.widget.DatePicker; import android.widget.TimePicker; import android.view.View; import java.util.Calendar; /** * Basic example of using date and time widgets, including * {@link android.app.TimePickerDialog} and {@link android.widget.DatePicker}. * * Also provides a good example of using {@link Activity#onCreateDialog}, * {@link Activity#onPrepareDialog} and {@link Activity#showDialog} to have the * activity automatically save and restore the state of the dialogs. */ public class DateWidgets1 extends Activity { // where we display the selected date and time private TextView mDateDisplay; // date and time 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; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.date_widgets_example_1); mDateDisplay = (TextView) findViewById(R.id.dateDisplay); Button pickDate = (Button) findViewById(R.id.pickDate); pickDate.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog(DATE_DIALOG_ID); } }); Button pickTime = (Button) findViewById(R.id.pickTime); pickTime.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog(TIME_DIALOG_ID); } }); final Calendar c = Calendar.getInstance(); mYear = c.get(Calendar.YEAR); mMonth = c.get(Calendar.MONTH); mDay = c.get(Calendar.DAY_OF_MONTH); mHour = c.get(Calendar.HOUR_OF_DAY); mMinute = c.get(Calendar.MINUTE); updateDisplay(); } @Override protected Dialog onCreateDialog(int id) { switch (id) { case TIME_DIALOG_ID: return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute, false); case DATE_DIALOG_ID: return new DatePickerDialog(this, mDateSetListener, mYear, mMonth, mDay); } return null; } @Override protected void onPrepareDialog(int id, Dialog dialog) { switch (id) { case TIME_DIALOG_ID: ((TimePickerDialog) dialog).updateTime(mHour, mMinute); break; case DATE_DIALOG_ID: ((DatePickerDialog) dialog).updateDate(mYear, mMonth, mDay); break; } } private void updateDisplay() { mDateDisplay.setText( new StringBuilder() // Month is 0 based so add 1 .append(mMonth + 1).append("-") .append(mDay).append("-") .append(mYear).append(" ") .append(pad(mHour)).append(":") .append(pad(mMinute))); } private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { mYear = year; mMonth = monthOfYear; mDay = dayOfMonth; updateDisplay(); } }; private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() { public void onTimeSet(TimePicker view, int hourOfDay, int minute) { mHour = hourOfDay; mMinute = minute; updateDisplay(); } }; private static String pad(int c) { if (c >= 10) return String.valueOf(c); else return "0" + String.valueOf(c); } }