event.getSource（）返回的android空无障碍

问题描述

我试图填补使用像DashLane或使用辅助服务的一些其他应用程序可访问服务的EditText申请。我用事件视图集中。当EditText上得到集中的情况下起步，但的getSource（）返回null。

code是：

  AccessibilityNodeInfo源= event.getSource（）;

如果（来源！= NULL）{
        ClipboardManager剪贴板=（ClipboardManager）context.getSystemService（Context.CLIPBOARD_SERVICE）;
        ClipData夹= ClipData.newPlainText（标签，测试数据）;
        clipboard.setPrimaryClip（夹）;
        source.performAction（AccessibilityNodeInfo.ACTION_PASTE）;
        Toast.makeText（MyAccessibilityService.this，粘贴成功，Toast.LENGTH_LONG）;
}
 

和我尝试了一些的是给错误的其他方法。所以这里有一个问题是，为什么它返回null。任何人都可以请帮我。

Androidmanifest

 ＆LT;使用-权限的Andr​​oid：名称=android.permission.BIND_ACCESSIBILITY_SERVICE/＆GT;
            ＆LT;使用-权限的Andr​​oid：名称=android.permission.SYSTEM_ALERT_WINDOW/＆GT;
            ＆lt;应用
                机器人：图标=@可绘制/ ic_launcher
                机器人：标签=@字符串/ APP_NAME
                机器人：权限=android.permission.BIND_ACCESSIBILITY_SERVICE＆GT;
                ＆LT;服务机器人。MyAccessibilityService名称=机器人：标签=@字符串/ APP_NAME机器人：启用=真正的机器人：出口=真正的＆GT;
                ＆LT;意向滤光器＆gt;
                    ＆lt;作用机器人：名称=android.accessibilityservice.AccessibilityService安卓资源=@ XML /辅助功能/＆GT;
                ＆所述; /意图滤光器＆gt;
 

Accessibility.xml

 ＆LT;辅助服务的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
            机器人：说明=@字符串/ accessibility_service_description
            机器人：packageNames =com.test.toasts2
            机器人：accessibilityEventTypes =typeAllMask
            机器人：accessibilityFlags =flagDefault
            机器人：accessibilityFeedbackType =feedbackSpoken
            机器人：notificationTimeout =100
            机器人：canRetrieveWindowContent =真
            机器人：settingsActivity =com.example.android.accessibility.ServiceSettingsActivity
        /＆GT;
 

解决方案

您错过了在清单文件中的元标记。只需添加。

 ＆LT;元数据的android：NAME =android.accessibilityservice
       机器人：资源=@ XML /无障碍＆GT;
 

i am trying to fill EditText filed using accessibility service like DashLane or some other apps which are using accessibility Service. i am using an event view focused. when EditText gets focused the event getting started but getSource() returns null.

Code is:

  AccessibilityNodeInfo source = event.getSource();

if (source != null) {
        ClipboardManager clipboard = (ClipboardManager)  context.getSystemService(Context.CLIPBOARD_SERVICE);
        ClipData clip = ClipData.newPlainText("label", "TEST DATA");
        clipboard.setPrimaryClip(clip);
        source.performAction(AccessibilityNodeInfo.ACTION_PASTE);
        Toast.makeText(MyAccessibilityService.this, "Pasted Successfully", Toast.LENGTH_LONG);
}

and i tried some of the other methods which is giving errors. so one question here is why its returning null. can anyone pls help me out.

Androidmanifest

            <uses-permission android:name="android.permission.BIND_ACCESSIBILITY_SERVICE"/>
            <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
            <application
                android:icon="@drawable/ic_launcher"
                android:label="@string/app_name"
                android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">
                <service android:name=".MyAccessibilityService" android:label="@string/app_name" android:enabled="true" android:exported="true">
                <intent-filter>
                    <action android:name="android.accessibilityservice.AccessibilityService" android:resource="@xml/accessibility" />
                </intent-filter>

Accessibility.xml

        <accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
            android:description="@string/accessibility_service_description"
            android:packageNames="com.test.toasts2"
            android:accessibilityEventTypes="typeAllMask"
            android:accessibilityFlags="flagDefault"
            android:accessibilityFeedbackType="feedbackSpoken"
            android:notificationTimeout="100"
            android:canRetrieveWindowContent="true"
            android:settingsActivity="com.example.android.accessibility.ServiceSettingsActivity"
        />

解决方案

You missed the meta tag in manifest file. just add.

       <meta-data android:name="android.accessibilityservice"
       android:resource="@xml/accessibility">

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