这个例子的Icons Only 和 Icons and marquee 没有什么特别好说明的。
而Use Remote views in balloon 介绍了可以自定义在Extended Status bar显示Notification的Layout,Extended Status Bar缺省显示Notification 是一个图标后接文字,对应大多数情况是够用了。但如果有需要也可以使用自定义的Layout在Extented Status bar显示Notification,方法是通过RemoteView:
private void setMoodView(int moodId, int textId) { // Instead of the normal constructor, we‘re going to use the one with no args and fill // in all of the data ourselves. The normal one uses the default layout for notifications. // You probably want that in most cases, but if you want to do something custom, you // can set the contentView field to your own RemoteViews object. Notification notif = new Notification(); // This is who should be launched if the user selects our notification. notif.contentIntent = makeMoodIntent(moodId); // In this sample, we‘ll use the same text for the ticker and the expanded notification CharSequence text = getText(textId); notif.tickerText = text; // the icon for the status bar notif.icon = moodId; // our custom view RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.status_bar_balloon); contentView.setTextViewText(R.id.text, text); contentView.setImageViewResource(R.id.icon, moodId); notif.contentView = contentView; // we use a string id because is a unique number. we use it later to cancel the // notification mNotificationManager.notify(MOOD_NOTIFICATIONS, notif); }
为了和缺省的Status Bar Layout有所区别,我们在/res/status_bar_balloon.xml 在增加一个ImageView:左右各显示一个图标,中间为文字。
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” android:orientation=”horizontal” android:baselineAligned=”false” android:gravity=”center_vertical” android:layout_width=”wrap_content” android:layout_height=”wrap_content”> <ImageView android:id=”@+id/icon” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:layout_marginRight=”10dip” /> <TextView android:id=”@+id/text” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:textColor=”#ffffffff” /> <ImageView android:id=”@+id/icon1″ android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:layout_marginRight=”10dip” /> </LinearLayout>
Use default values where applicable 介绍使用缺省声音,震动或是两者的方法:
int default = Notification.DEFAULT_SOUND; //Notification.DEFAULT_SOUND //Notification.DEFAULT_VIBRATE //Notification.DEFAULT_ALL notification.defaults = defaults;
注:例子中使用了同样的Notification ID :R.layout.status_bar_notifications ,因此每次调用mNotificationManager.notify 都会更新同一个Notification。
时间: 2024-10-26 05:39:34