Android 获取通知栏的通知并修改内容并重新发送
时间: 2024-05-16 17:16:53 浏览: 149
要获取通知栏的通知并修改内容并重新发送,您需要使用 NotificationListenerService 类。这是一个系统服务,允许应用程序监听和处理通知栏上的通知。
以下是一些步骤来实现此目标:
1. 创建一个继承自 NotificationListenerService 的类,并覆盖 onNotificationPosted() 方法。
2. 在 onNotificationPosted() 方法中,使用 Notification 对象的 getContentIntent() 方法获取 PendingIntent 对象。
3. 使用 PendingIntent 对象获取 Notification 标题和文本内容。
4. 修改标题和文本内容。
5. 使用 NotificationManager 的 notify() 方法重新发送修改后的通知。
以下是示例代码:
```java
public class NotificationListener extends NotificationListenerService {
@Override
public void onNotificationPosted(StatusBarNotification sbn) {
// 获取 PendingIntent 对象
PendingIntent pendingIntent = sbn.getNotification().contentIntent;
try {
// 从 PendingIntent 中获取 Notification 标题和文本内容
Context context = getApplicationContext();
Intent intent = new Intent();
PendingIntent.getActivity(context, 0, intent, 0).send();
Notification notification = sbn.getNotification();
Bundle extras = notification.extras;
String title = extras.getString(Notification.EXTRA_TITLE);
String text = extras.getString(Notification.EXTRA_TEXT);
// 修改标题和文本内容
title = "New Title";
text = "New Text";
// 创建新的 Notification 对象
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, "channel_id")
.setSmallIcon(R.drawable.ic_launcher_background)
.setContentTitle(title)
.setContentText(text)
.setPriority(NotificationCompat.PRIORITY_DEFAULT);
// 使用 NotificationManager 的 notify() 方法重新发送通知
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
notificationManager.notify(sbn.getId(), builder.build());
} catch (PendingIntent.CanceledException e) {
e.printStackTrace();
}
}
}
```
请注意,为了使 NotificationListenerService 类起作用,您需要在应用程序的 AndroidManifest.xml 文件中声明它:
```xml
<manifest>
<application>
<service android:name=".NotificationListener"
android:label="@string/service_name"
android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
<intent-filter>
<action android:name="android.service.notification.NotificationListenerService" />
</intent-filter>
</service>
</application>
</manifest>
```
此外,您需要在您的应用程序的 AndroidManifest.xml 文件中声明 android.permission.BIND_NOTIFICATION_LISTENER_SERVICE 权限。
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