时间控件
16lz
2021-01-23
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" android:text="欢迎关注Andy.Chen Blog" /> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" android:text="日期和时间控件的使用DEMO" /> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <EditText android:id="@+id/showdate" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"/> <Button android:id="@+id/pickdate" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="选择日期"/> </LinearLayout> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <EditText android:id="@+id/showtime" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"/> <Button android:id="@+id/picktime" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="选择时间"/> </LinearLayout> </LinearLayout>
主代码.java
package com.xmb.test1;import java.util.Calendar;import android.app.Activity;import android.app.DatePickerDialog;import android.app.Dialog;import android.app.TimePickerDialog;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.View;import android.widget.Button;import android.widget.DatePicker;import android.widget.EditText;import android.widget.TimePicker;public class TimeViewMain extends Activity { private EditText showDate = null; private Button pickDate = null; private EditText showTime = null; private Button pickTime = null; private static final int SHOW_DATAPICK = 0; private static final int DATE_DIALOG_ID = 1; private static final int SHOW_TIMEPICK = 2; private static final int TIME_DIALOG_ID = 3; private int mYear; private int mMonth; private int mDay; private int mHour; private int mMinute; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); initializeViews(); 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); setDateTime(); setTimeOfDay(); } /** * 初始化控件和UI视图 */ private void initializeViews(){ showDate = (EditText) findViewById(R.id.showdate); pickDate = (Button) findViewById(R.id.pickdate); showTime = (EditText)findViewById(R.id.showtime); pickTime = (Button)findViewById(R.id.picktime); pickDate.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Message msg = new Message(); if (pickDate.equals((Button) v)) { msg.what = TimeViewMain.SHOW_DATAPICK; } TimeViewMain.this.dateandtimeHandler.sendMessage(msg); } }); pickTime.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Message msg = new Message(); if (pickTime.equals((Button) v)) { msg.what = TimeViewMain.SHOW_TIMEPICK; } TimeViewMain.this.dateandtimeHandler.sendMessage(msg); } }); } /** * 设置日期 */ private void setDateTime(){ final Calendar c = Calendar.getInstance(); mYear = c.get(Calendar.YEAR); mMonth = c.get(Calendar.MONTH); mDay = c.get(Calendar.DAY_OF_MONTH); updateDateDisplay(); } /** * 更新日期显示 */ private void updateDateDisplay(){ showDate.setText(new StringBuilder().append(mYear).append("-") .append((mMonth + 1) < 10 ? "0" + (mMonth + 1) : (mMonth + 1)).append("-") .append((mDay < 10) ? "0" + mDay : mDay)); } /** * 日期控件的事件 */ private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { mYear = year; mMonth = monthOfYear; mDay = dayOfMonth; updateDateDisplay(); } }; /** * 设置时间 */ private void setTimeOfDay(){ final Calendar c = Calendar.getInstance(); mHour = c.get(Calendar.HOUR_OF_DAY); mMinute = c.get(Calendar.MINUTE); updateTimeDisplay(); } /** * 更新时间显示 */ private void updateTimeDisplay(){ showTime.setText(new StringBuilder().append(mHour).append(":") .append((mMinute < 10) ? "0" + mMinute : mMinute)); } /** * 时间控件事件 */ private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() { @Override public void onTimeSet(TimePicker view, int hourOfDay, int minute) { mHour = hourOfDay; mMinute = minute; updateTimeDisplay(); } }; @Override protected Dialog onCreateDialog(int id) { switch (id) { case DATE_DIALOG_ID: return new DatePickerDialog(this, mDateSetListener, mYear, mMonth, mDay); case TIME_DIALOG_ID: return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute, true); } return null; } @Override protected void onPrepareDialog(int id, Dialog dialog) { switch (id) { case DATE_DIALOG_ID: ((DatePickerDialog) dialog).updateDate(mYear, mMonth, mDay); break; case TIME_DIALOG_ID: ((TimePickerDialog) dialog).updateTime(mHour, mMinute); break; } } /** * 处理日期和时间控件的Handler */ Handler dateandtimeHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case TimeViewMain.SHOW_DATAPICK: showDialog(DATE_DIALOG_ID); break; case TimeViewMain.SHOW_TIMEPICK: showDialog(TIME_DIALOG_ID); break; } } }; }
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