使用sendBroadcast，向一个Action发送广播，并由相应的广播接收器接收并执行相应的动作
实现的代码如下：
4.1 打开广播服务
package lovefang.stadyService;
/**引入包*/
import Android.view.View;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.widget.Button;
/**使用Broadcast,这是一个发送广播的类*/
public class UseBroadcast extends Activity{
/**创建参数*/
private Button sendBroadcast;
/**创建Activity*/
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.broadcast);// 使用布局文件
getView();
sendBroadcast.setOnClickListener(sendBroadcastClick);// 添加事件监听
}
public void getView(){
sendBroadcast = (Button)findViewById(R.id.sendBroadcast);
}
/**创建事件监听*/
public Button.OnClickListener sendBroadcastClick = new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent();// 创建意图
intent.putExtra("CONTENT", "This is a Braodcast demo");// 设置广播的内容
intent.setAction("lovefang.stadyService");// 设置广播的Action
sendBroadcast(intent);
}
};
}
4.2 处理广播消息
package lovefang.stadyService;
/***/
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
/**这是一个接收广播的类*/
public class UseBroadcastReceiver extends BroadcastReceiver{
public void onReceive(Context context, Intent intent){
Log.v("UseBroadcastReceiver", "I get a message");
}
}
5.Notification
这个称之为通知，显示在手机的通知栏，用户可以清除，可以点击
实现的代码如下：
package lovefang.stadyService;
import android.content.Intent;
import android.os.Bundle;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.net.Uri;
import android.media.RingtoneManager;
import android.widget.Button;
import android.view.View;
/**使用notification*/
public class UseNotification extends Activity {
/**创建组件*/
private Button textButton;
private Button soundButton;// 声音通知
private Button vibrateButton;// 震动通知
private Button ledButton;// led通知
private Button offButton;// 关闭通知
NotificationManager notificationManager;
/**创建Activity*/
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.notification);
getComment();
registerComment();
}
/**获取对象*/
public void getComment(){
/**获取Notification对象*/
notificationManager = (NotificationManager)this.getSystemService(NOTIFICATION_SERVICE);
textButton = (Button)findViewById(R.id.notificationMessage);
soundButton =(Button)findViewById(R.id.notificationSound);
vibrateButton = (Button)findViewById(R.id.notificationVibrate);
ledButton = (Button)findViewById(R.id.notificationLED);
offButton = (Button)findViewById(R.id.offnotification);
}
/**注册对象*/
public void registerComment(){
textButton.setOnClickListener(notificationMessage);
soundButton.setOnClickListener(notificationSound);
vibrateButton.setOnClickListener(notificationVibrate);
ledButton.setOnClickListener(notificationLed);
offButton.setOnClickListener(notificationOff);
}
public Button.OnClickListener notificationMessage = new Button.OnClickListener(){
public void onClick(View view){
Notification notification = new Notification();// 创建Notification对象
notification.icon = R.drawable.icon;
notification.tickerText = "This is text notication";// 设置通知消息
/**单击通知后的Intent，此例子单击后还是在当前页面*/
PendingIntent intent = PendingIntent
.getActivity(UseNotification.this,
0, new Intent(UseNotification.this,UseNotification.class)
, 0);
/**设置通知消息*/
notification.setLatestEventInfo(UseNotification.this
,"Notification","Content of Notification Demo",intent);
/**执行通知*/
notificationManager.notify(0, notification);
}
};
public Button.OnClickListener notificationSound = new Button.OnClickListener(){
public void onClick(View view){
/**创建通知对象*/
Notification notification = new Notification();
/**获取系统当前声音*/
String ringName = RingtoneManager.getActualDefaultRingtoneUri(
UseNotification.this, RingtoneManager.TYPE_RINGTONE)
.toString();
/**设置系统当前铃声为此通知的铃声*/
notification.sound = Uri.parse(ringName);
/**执行通知*/
notificationManager.notify(0,notification);
}
};
/**震动通知*/
public Button.OnClickListener notificationVibrate = new Button.OnClickListener(){
public void onClick(View view){
Notification notification = new Notification();// 创建Notification对象
notification.vibrate = new long[] {0, 100, 200, 300};// 设置通知震动模式
notificationManager.notify(0,notification);// 执行通知
}
};
/**LED通知*/
public Button.OnClickListener notificationLed = new Button.OnClickListener(){
public void onClick(View view){
Notification notification = new Notification();// 创建Notification对象
notification.ledOnMS = 300;// 设置led开始闪光的时间
notification.ledOffMS = 1000;// 设置关闭时的闪光时间
notificationManager.notify(0,notification);// 执行通知
}
};
/**关闭通知*/
public Button.OnClickListener notificationOff = new Button.OnClickListener(){
public void onClick(View view){
notificationManager.cancel(0);// 关闭通知
}
};
}