Android入門之時間日期控制項

package com.jkxqj.helloandroid;    import android.app.Activity;  import android.os.Bundle;  import android.view.Menu;  import android.view.View;  import android.view.View.OnClickListener;  import android.widget.DatePicker;    public class MainActivity extends Activity {        private DatePicker datePicker;            @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);                    datePicker = (DatePicker)findViewById(R.id.firstDatePicker);          datePicker.updateDate(2013, 8, 23);      }        class ButtonListener implements OnClickListener{          @Override          public void onClick(View v) {              int y = datePicker.getYear();              int m = datePicker.getMonth();              int d = datePicker.getDayOfMonth();              System.out.println("y:" + y + ",m" + m + ",d:" + d);          }                }      @Override      public boolean onCreateOptionsMenu(Menu menu) {          // Inflate the menu; this adds items to the action bar if it is present.           getMenuInflater().inflate(R.menu.main, menu);          return true;      }    }  package com.jkxqj.helloandroid;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.DatePicker;public class MainActivity extends Activity {private DatePicker datePicker;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);datePicker = (DatePicker)findViewById(R.id.firstDatePicker);datePicker.updateDate(2013, 8, 23);}class ButtonListener implements OnClickListener{@Overridepublic void onClick(View v) {int y = datePicker.getYear();int m = datePicker.getMonth();int d = datePicker.getDayOfMonth();System.out.println("y:" + y + ",m" + m + ",d:" + d);}}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

activity_main.xml

 

<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=".MainActivity" >      <AnalogClock         android:id="@+id/clock"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentLeft="true"         android:layout_alignParentTop="true"         android:layout_marginLeft="64dp" />      <DatePicker         android:id="@+id/firstDatePicker"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_below="@+id/clock"         android:layout_centerHorizontal="true"         android:layout_marginTop="17dp" />      

</RelativeLayout>