本文实例为大家分享了android使用datepicker计算年龄的具体代码,供大家参考,具体内容如下
界面如下,凑合看吧
点击选择年龄的按钮时弹出datepicker日历选择器
在日历选择器上选中您的年龄点击完成
activity_main.xml的代码如下:
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< RelativeLayout xmlns:android = "http://schemas.android.com/apk/res/android" xmlns:tools = "http://schemas.android.com/tools" android:layout_width = "match_parent" android:layout_height = "match_parent" android:paddingBottom = "@dimen/activity_vertical_margin" android:paddingLeft = "@dimen/activity_horizontal_margin" android:paddingRight = "@dimen/activity_horizontal_margin" android:paddingTop = "@dimen/activity_vertical_margin" tools:context = "com.example.datepicker.MainActivity" > < TextView android:id = "@+id/editText" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_centerHorizontal = "true" android:layout_centerVertical = "true" android:hint = "选择你的出生年月" /> < Button android:id = "@+id/select" android:onClick = "SelectAge" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_alignBaseline = "@+id/editText" android:layout_alignBottom = "@+id/editText" android:layout_alignParentLeft = "true" android:text = "选择年龄" /> </ RelativeLayout > |
mainActivity的代码如下:
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package com.example.datepicker; import java.text.SimpleDateFormat; import java.util.Date; import android.app.Activity; import android.app.DatePickerDialog; import android.app.DatePickerDialog.OnDateSetListener; import android.os.Bundle; import android.view.View; import android.view.Window; import android.widget.DatePicker; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity implements OnDateSetListener { private TextView mText; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); mText = (TextView) findViewById(R.id.editText); } public void SelectAge(View v) { // 这设置默认显示的日期 我选的2000年1月1日 月这是从0开始 0 是一月 new DatePickerDialog(MainActivity. this , this , 2000 , 0 , 1 ).show(); } @Override public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { // TODO Auto-generated method stub // 选择1月会是0 要把月份+1 Toast.makeText(MainActivity. this , "你选择的是" + year + "年" + (monthOfYear+ 1 ) + "月" + dayOfMonth + "日" , Toast.LENGTH_LONG).show(); SimpleDateFormat format = new SimpleDateFormat( "yyyy" ); int NowYear = Integer.parseInt(format.format( new Date())); mText.setText( "你今年" + (NowYear - year) + "岁" ); } } |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/rosener/article/details/52447185