notification

https://github.com/wanglianghai/LightNotification
注意：折叠通知

 android:roundIcon="@mipmap/ic_launcher_round"

这要去了不然有冲突和

notification.bigContentView = remoteViews;

因为这字段废弃了，不维护了
普通通知：
这是个行为intent

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.baidu.com"));

*小知识：*1.修改启动图标android:icon=”@drawable/launcher”
2.用Android资源android:background=”@android:color/white”
3.BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher)转换资源图片为bitmap类型的

创建普通通知

        PendingIntent pendingIntent = PendingIntent.getActivity(NotificationActivity.this, 0, intent, 0);        Notification notification = new Notification.Builder(NotificationActivity.this)                .setContentIntent(pendingIntent)                .setSmallIcon(R.drawable.launcher)//*1                .setAutoCancel(true)                .setContentTitle("普通通知")                .setContentText("default")             .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))                .build();

启用通知:1.从系统中得到通知管理者

private NotificationManager mManager;mManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

启用通知

mManager.notify(0, notification);

二：折叠通知，自定义通知
普通通知添加下面代码
创建布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:orientation="vertical"              android:layout_width="match_parent"              android:layout_height="100dp">    <ImageView        android:layout_width="100dp"        android:layout_height="100dp"        android:src="@mipmap/ic_launcher"/></LinearLayout>

代码实例化布局
视图的创建和显示不在同一进程中用RemoteView

RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.folder_view);

设置使用（折叠通知）

notification.bigContentView = remoteViews;//notification.contentView = remoteViews;普通自定义通知

1：/*
* Set the small icon resource, which will be used to represent the notification in the
* status bar.
* 设置这资源小图标，将被用来展现通知在状态栏
* The platform template for the expanded view will draw this icon in the left, unless a
* {@link #setLargeIcon(Bitmap) large icon} has also been specified,
这平台的样板式扩大这视图画成图标在左边，除非setLargeIcon(Bitmap) 被指定了
5.0
新部分：悬挂通知和显示等级