实现自定义布局的Notification

上一节中，我们实现了自己的notification，相信大家都有了一些认识，在最后也接受了利用RemoteView来实现自定义布局的notification，这里就来举一个示例，方便理解。

第一步：新建一个工程，命名为cusNotification；

第二步：新建一个布局文件(即自定义的notification的布局文件:custom_notification.xml，内容如下：

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentLeft="true" android:layout_marginRight="10dp" android:contentDescription="@string/Image" /> <TextView android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/image" style="@style/NotificationTitle" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/image" android:layout_below="@id/title" style="@style/NotificationText" /> </RelativeLayout>
第三步：新建上面布局文件中引用到的styyes.xml文件，代码如下：

<?xml version="1.0" encoding="utf-8"?> <resources> <style name="NotificationText" parent="android:TextAppearance.StatusBar.EventContent" /> <style name="NotificationTitle" parent="android:TextAppearance.StatusBar.EventContent.Title" /> </resources>
第四步：修改java源文件，代码如下：

public class CusNotificationActivity extends Activity { private static final int CUSTOM_VIEW_ID = 1; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //Notification notification = new Notification(); int icon = R.drawable.ic_launcher; CharSequence tickerText = "Notification01"; long when = System.currentTimeMillis(); Notification notification = new Notification(icon, tickerText, when); RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom_notification); contentView.setImageViewResource(R.id.image, R.drawable.notification_image); contentView.setTextViewText(R.id.title, "Custom notification"); contentView.setTextViewText(R.id.text, "This is a custom layout"); notification.contentView = contentView; Intent notificationIntent = new Intent(this, CusNotificationActivity.class); PendingIntent contentIntent = PendingIntent.getActivity(CusNotificationActivity.this, 0, notificationIntent, 0); notification.contentIntent = contentIntent; String ns = Context.NOTIFICATION_SERVICE; NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns); mNotificationManager.notify(CUSTOM_VIEW_ID, notification); } } 第五步：运行程序，看看再notifications window中出现的效果如下：

当然，我们这里还和默认的布局效果做一下对比，下面的是使用默认的布局的效果图：

这里主要是讲解自定义布局notification的实现，并没有做出很炫的效果！就到这吧！