未启动无障碍服务 [英] accessibility service is not started

问题描述

我要记录在Android的集成电路（4.0.3）所有敬酒事件，但我无法登录任何系统事件。服务是不启动！

I want to log all toasts events in android ics (4.0.3), but I was unable to log any system event. Service is just not started!

根据这个问题： <一href="http://stackoverflow.com/questions/9158934/onaccessibilityeventaccessibilityevent-event-not-intercepting-notification?lq=1">onAccessibilityEvent(AccessibilityEvent事件）不拦截通知

MyAccessibilityService.java

package com.test.toasts2;

import android.accessibilityservice.AccessibilityService;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.app.Notification;
import android.os.Parcelable;
import android.util.Log;
import android.view.accessibility.AccessibilityEvent;
import android.widget.Toast;

public class MyAccessibilityService extends AccessibilityService {


    public static final String TAG = "volumeMaster";

    @Override
    public void onAccessibilityEvent(AccessibilityEvent event)
    {
        Log.v(TAG, "***** onAccessibilityEvent");
        Toast.makeText(getApplicationContext(), "Got event from: " + event.getPackageName(), Toast.LENGTH_LONG).show();
    }

    @Override
    public void onInterrupt()
    {
        Log.v(TAG, "***** onInterrupt");
    }

    @Override
    public void onServiceConnected()
    {
        Log.v(TAG, "***** onServiceConnected");       


        AccessibilityServiceInfo info = new AccessibilityServiceInfo();
        info.eventTypes = AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED;
        info.notificationTimeout = 100;
        info.feedbackType = AccessibilityEvent.TYPES_ALL_MASK;
        setServiceInfo(info);

    }
}

Toast2Activity.java

package com.test.toasts2;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;

public class Toast2Activity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Intent i = new Intent(this, MyAccessibilityService.class);
        startService(i);
    }
}

AndroidManifest.xml中

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.test.toasts2"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="15" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
<service android:name=".MyAccessibilityService" android:label="@string/app_name" android:enabled="true" android:exported="false">
        <intent-filter>
            <action android:name="android.accessibilityservice.AccessibilityService" />
        </intent-filter>

</service>

        <activity
            android:name=".Toast2Activity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

我列入活动代码清单中（开始对应用程序启动服务），并且还试图删除。没有改变。只是不启动服务。我没有得到通知日志猫（Log.v在onServiceConected）。

I included activity tag in manifest (to start service on app start), and also tried to remove. Nothing changed. Service is just not started. I don't get notification in log cat (Log.v in onServiceConected).

我编这是正常的应用程序（而不是系统的应用程序），安卓4.0.3。难道我做错了什么？

I am compiling this as normal app (not system app), android 4.0.3. Am I doing something wrong?

连接项目（可能是错误的是别的地方，也许我编译错了）： <一href="https://dl.dropbox.com/u/1928109/toast2.zip">https://dl.dropbox.com/u/1928109/toast2.zip

Attached project (may be mistake is somewhere else, or maybe I am compiling it wrong): https://dl.dropbox.com/u/1928109/toast2.zip

推荐答案

您需要启用从系统设置菜单中的可访问性服务：

You need to enable the accessibility service from the system settings menu:

• 在测试设备​​上安装您的应用程序。

• Install your app on the testing device.

通过安装在设备上的应用程序，更改下列设备上设置：

With the app installed on the device, change the following setting on the device:

主屏幕>系统设置>辅助功能>辅助服务>烤面包>从关闭更改，

Home Screen > System Settings > Accessibility > Accessibility Services > Toast2 > Change from Off to On,

在这里烤面包是你的应用程序名称。

where Toast2 is your app name.

然后运行你的应用程序。

Then run your app.

AFAIK没有办法从你的应用程序中以编程方式在模式设置可访问性。作为一种变通方法，你可以提示用户更改设置，如果他们同意通过点击一个按钮，启动辅助系统设置，像这样：

AFAIK there is no method to set accessibility programmatically to On mode from within your app. As a workaround you can prompt the user to change the setting and if they agree by clicking a button, launch the accessibility system settings like so:

Intent intent = new Intent(android.provider.Settings.ACTION_ACCESSIBILITY_SETTINGS);
startActivityForResult(intent, 0);

这篇关于未启动无障碍服务的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！