我尝试开发一个非常简单的场景,当事件发生时,我只会收到一条小的敬酒消息。不幸的是,我找不到下面的代码为什么不打开祝酒消息。我知道我已经阅读了一些有关该主题的帖子,但没有一个能够帮助我。如果有人可以帮助我或提供一个有效的例子,我将不胜感激。
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.testing.attackondatacollector">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<service android:name=".MaliciousService"
android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"
android:label="A malicious service">
<intent-filter>
<action android:name="android.accessibilityservice.AccessibilityService"/>
</intent-filter>
</service>
</application>
</manifest>
服务
package com.example.android.testing.attackondatacollector;
import android.accessibilityservice.AccessibilityService;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.view.accessibility.AccessibilityEvent;
import android.widget.Toast;
public class MaliciousService extends AccessibilityService {
@Override
public void onServiceConnected() {
AccessibilityServiceInfo info = new AccessibilityServiceInfo();
info.eventTypes = AccessibilityEvent.TYPES_ALL_MASK;
info.notificationTimeout = 100;
this.setServiceInfo(info);
Toast t = Toast.makeText(getApplicationContext(), "Malicious Accessibility Service is connected now", Toast.LENGTH_SHORT);
t.show();
}
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
Toast t = Toast.makeText(getApplicationContext(), "An event occurred", Toast.LENGTH_SHORT);
t.show();
}
@Override
public void onInterrupt() {
Toast t = Toast.makeText(getApplicationContext(), "An interrupt occurred", Toast.LENGTH_SHORT);
t.show();
}
}
我在设置中打开了服务,并且得到了最初的Toast,上面写着“恶意服务已连接”。但是,每当我滑动或打开新活动或其他内容时,我都不会得到其他吐司。