android 通知,Android通知

深藏阁楼爱情的钟 2022-10-18 04:58 244阅读 0赞

通知在实际开发中还是比较常见的，例如新闻，音乐播放器，等。

1，基本通知

//初始化通知管理器

NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION\_SERVICE);

Notification.Builder builder = new Notification.Builder(this);

Intent mIntent = new Intent(Intent.ACTION\_VIEW, Uri.parse("https://www.jianshu.com/p/890acf8e5080"));

PendingIntent pendingIntent = PendingIntent.getActivity(this,0,mIntent,0);

builder.setContentIntent(pendingIntent);

builder.setSmallIcon(R.drawable.ic\_launcher\_background);

builder.setContentTitle("标题");

builder.setAutoCancel(true);

builder.setContentText("通知消息");

Notification notification = builder.build();

notificationManager.notify(0, notification);

![cb1fa74fb76b][]

Screenshot\_1531046655.png

2，基础扩展通知自定义布局

xml >> item\_notification

android:layout\_width="match\_parent"

android:layout\_height="match\_parent"

android:orientation="vertical">

android:layout\_width="wrap\_content"

android:layout\_height="wrap\_content"

android:background="@mipmap/ic\_launcher"/>

android:layout\_width="wrap\_content"

android:layout\_height="wrap\_content"

android:text="this is my View ，https://www.jianshu.com/u/6bbde9df8181https://www.jianshu.com/u/6bbde9df8181https://www.jianshu.com/u/6bbde9df8181https://www.jianshu.com/u/6bbde9df8181https://www.jianshu.com/u/6bbde9df8181https://www.jianshu.com/u/6bbde9df8181"

JAVA类

首先要创建一个RemoteViews自定义视图 详情https://blog.csdn.net/baidu\_26352053/article/details/54943759

RemoteViews remoteViews = new RemoteViews(getPackageName(),R.layout.item\_notification);

Notification notification1 = builder.build();

notification1.bigContentView= remoteViews;

notificationManager.notify(1, notification1);

注意，这里是在第一个通知的基础上写的，和第一个的区别就是可展开的自定义视图，

notification1.bigContentView= remoteViews;表示设置为普通视图，但是可以展开，如果需要默认展开，则设置notification1.contentView= remoteViews; 效果图如下

![cb1fa74fb76b][]

Screenshot\_1531046886.png

可以看到在第二个通知中存在可以展开的符号，也就是,layout >> item\_notification这个布局。

3，基础再扩展，悬浮通知，都是基于第一个例子