Android notification LED
场景：Android Notification调用测试LED展示
Android Notification调用测试LED显示
Android Notification调用测试LED显示
Notification可以在屏幕最顶部的状态栏上显示一个图标通知（QQ用的就是这个），通知的同时可以播放声音，以及振动提示用户,点击通知还可以返回指定的Activity.
今天例子的效果图：
布局main.xml:
01
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<?xml version=
"1.0"
encoding=
"utf-8"
?>
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02
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<LinearLayout xmlns:android=
"http://schemas.android.com/apk/res/android
"
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android:orientation=
"vertical"
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android:layout_width=
"fill_parent"
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05
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android:layout_height=
"fill_parent"
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06
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>
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07
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<Button android:id=
"@+id/bt1"
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android:layout_height=
"wrap_content"
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09
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android:layout_width=
"fill_parent"
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10
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android:text=
"Notification测试"
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11
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/>
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<Button android:id=
"@+id/bt2"
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13
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android:layout_height=
"wrap_content"
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14
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android:layout_width=
"fill_parent"
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15
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android:text=
"清除Notification"
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16
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/>
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</LinearLayout> <br>
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就两个按钮，一个添加Notification，一个删除Notification
01
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package
com.pocketdigi.Notification;
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02
|
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03
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import
android.app.Activity;
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04
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import
android.app.Notification;
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05
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import
android.app.NotificationManager;
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06
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import
android.app.PendingIntent;
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07
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import
android.content.Intent;
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08
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import
android.os.Bundle;
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09
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import
android.view.View;
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10
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import
android.view.View.OnClickListener;
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11
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import
android.widget.Button;
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12
|
|
13
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public
class
main
extends
Activity {
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/** Called when the activity is first created. */
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15
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int
notification_id=
19172439
;
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16
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NotificationManager nm;
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@Override
|
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public
void
onCreate(Bundle savedInstanceState) {
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super
.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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nm=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
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Button bt1=(Button)findViewById(R.id.bt1);
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bt1.setOnClickListener(bt1lis);
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Button bt2=(Button)findViewById(R.id.bt2);
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bt2.setOnClickListener(bt2lis);
|
26
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}
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28
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OnClickListener bt1lis=
new
OnClickListener(){
|
29
|
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30
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@Override
|
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public
void
onClick(View v) {
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// TODO Auto-generated method stub
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33
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showNotification(R.drawable.home,
"图标边的文字"
,
"标题"
,
"内容"
);
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}
|
35
|
|
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};
|
37
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OnClickListener bt2lis=
new
OnClickListener(){
|
38
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|
39
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@Override
|
40
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public
void
onClick(View v) {
|
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// TODO Auto-generated method stub
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//showNotification(R.drawable.home,"图标边的文字","标题","内容");
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nm.cancel(notification_id);
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}
|
45
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};
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public
void
showNotification(
int
icon,String tickertext,String title,String content){
|
48
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//设置一个唯一的ID，随便设置
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49
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50
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//Notification管理器
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51
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Notification notification=
new
Notification(icon,tickertext,System.currentTimeMillis());
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//后面的参数分别是显示在顶部通知栏的小图标，小图标旁的文字（短暂显示，自动消失）系统当前时间（不明白这个有什么用）
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53
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notification.defaults=Notification.DEFAULT_ALL;
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//这是设置通知是否同时播放声音或振动，声音为Notification.DEFAULT_SOUND
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//振动为Notification.DEFAULT_VIBRATE;
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56
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//Light为Notification.DEFAULT_LIGHTS，在我的Milestone上好像没什么反应
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//全部为Notification.DEFAULT_ALL
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//如果是振动或者全部，必须在AndroidManifest.xml加入振动权限
|
59
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PendingIntent pt=PendingIntent.getActivity(
this
,
0
,
new
Intent(
this
,main.
class
),
0
);
|
60
|
//点击通知后的动作，这里是转回main 这个Acticity
|
61
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notification.setLatestEventInfo(
this
,title,content,pt);
|
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nm.notify(notification_id, notification);
|
63
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|
64
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}
|
65
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}
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AndroidManifest.xml加入权限：
1
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<uses-permission android:name=
"android.permission.VIBRATE"
/>
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2
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<!-- 允许振动 -->
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