控件_TimePicker

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.TimePicker;
 import android.widget.TimePicker.OnTimeChangedListener;

 public class MainActivity extends Activity {
     private TimePicker firstTimePicker;
     private Button button;
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         button = (Button) findViewById(R.id.button);
         button.setOnClickListener(new ButtonListener());

         firstTimePicker = (TimePicker) findViewById(R.id.firstTimePicker);

         firstTimePicker.setIs24HourView(true);//该函数用于设置是否显示24小时制
         firstTimePicker.setOnTimeChangedListener(new TimeListener());
     }
     class ButtonListener implements OnClickListener{
         public void onClick(View v) {
             int hour = firstTimePicker.getCurrentHour();
             int minute = firstTimePicker.getCurrentMinute();
             System.out.println("hour="+hour+",minute="+minute);
         }
     }

     /*
       时间监听器（该监听器每改变时间都会触发）,onTimeChanged方法接受三个参数：
       view：该对象代表着TimePicker
       hourOfDay：用户选择的小时
       minute：用户选择的分钟
     */
     class TimeListener implements OnTimeChangedListener{
         public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
             System.out.println("hour"+hourOfDay+",minute:"+minute);
         }
     }
 }

 <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" >

     <TimePicker
         android:id="@+id/firstTimePicker"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         />

     <Button
         android:id="@+id/button"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_below="@id/firstTimePicker"
         android:text="获取TimePicker"
         />

 </RelativeLayout>