我最后自己做了这个：

public boolean isAccessibilityEnabled(){ int accessibilityEnabled = 0; final String LIGHTFLOW_ACCESSIBILITY_SERVICE = "com.example.test/com.example.text.ccessibilityService"; boolean accessibilityFound = false; try { accessibilityEnabled = Settings.Secure.getInt(this.getContentResolver(),android.provider.Settings.Secure.ACCESSIBILITY_ENABLED); Log.d(LOGTAG, "ACCESSIBILITY: " + accessibilityEnabled); } catch (SettingNotFoundException e) { Log.d(LOGTAG, "Error finding setting, default accessibility to not found: " + e.getMessage()); } TextUtils.SimpleStringSplitter mStringColonSplitter = new TextUtils.SimpleStringSplitter(':'); if (accessibilityEnabled==1){ Log.d(LOGTAG, "***ACCESSIBILIY IS ENABLED***: "); String settingValue = Settings.Secure.getString(getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES); Log.d(LOGTAG, "Setting: " + settingValue); if (settingValue != null) { TextUtils.SimpleStringSplitter splitter = mStringColonSplitter; splitter.setString(settingValue); while (splitter.hasNext()) { String accessabilityService = splitter.next(); Log.d(LOGTAG, "Setting: " + accessabilityService); if (accessabilityService.equalsIgnoreCase(ACCESSIBILITY_SERVICE_NAME)){ Log.d(LOGTAG, "We've found the correct setting - accessibility is switched on!"); return true; } } } Log.d(LOGTAG, "***END***"); } else{ Log.d(LOGTAG, "***ACCESSIBILIY IS DISABLED***"); } return accessibilityFound; }

从API级别14开始，还可以通过AccessibilityManager获取正在运行的辅助function服务：

public static boolean isAccessibilityEnabled(Context context, String id) { AccessibilityManager am = (AccessibilityManager) context .getSystemService(Context.ACCESSIBILITY_SERVICE); List runningServices = am .getEnabledAccessibilityServiceList(AccessibilityEvent.TYPES_ALL_MASK); for (AccessibilityServiceInfo service : runningServices) { if (id.equals(service.getId())) { return true; } } return false; }

要找出您的和所有安装的辅助function服务的标识，您可以运行以下代码片段：

public static void logInstalledAccessiblityServices(Context context) { AccessibilityManager am = (AccessibilityManager) context .getSystemService(Context.ACCESSIBILITY_SERVICE); List runningServices = am .getInstalledAccessibilityServiceList(); for (AccessibilityServiceInfo service : runningServices) { Log.i(TAG, service.getId()); } }

在我的例子中，ID看起来像org.your.package / .YourAccessibilityService。

到目前为止，该方法工作可靠。

检查服务是否启用

/** * Based on {@link com.android.settingslib.accessibility.AccessibilityUtils#getEnabledServicesFromSettings(Context,int)} * @see AccessibilityUtils */ public static boolean isAccessibilityServiceEnabled(Context context, Class> accessibilityService) { ComponentName expectedComponentName = new ComponentName(context, accessibilityService); String enabledServicesSetting = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES); if (enabledServicesSetting == null) return false; TextUtils.SimpleStringSplitter colonSplitter = new TextUtils.SimpleStringSplitter(':'); colonSplitter.setString(enabledServicesSetting); while (colonSplitter.hasNext()) { String componentNameString = colonSplitter.next(); ComponentName enabledService = ComponentName.unflattenFromString(componentNameString); if (enabledService != null && enabledService.equals(expectedComponentName)) return true; } return false; }

用法：

boolean enabled = isAccessibilityServiceEnabled(context, MyAccessibilityService.class);

检测何时启用或禁用服务

进行callback：

ContentObserver observer = new ContentObserver() { @Override public void onChange(boolean selfChange) { super.onChange(selfChange); boolean accessibilityServiceEnabled = isAccessibilityServiceEnabled(context, MyAccessibilityService.class); //Do something here } };

订阅：

Uri uri = Settings.Secure.getUriFor(Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES); context.getContentResolver().registerContentObserver(uri, false, observer);

完成后取消订阅：

context.getContentResolver().unregisterContentObserver(observer);

请注意，这不适用于getEnabledAccessibilityServiceList()方法，因为它的值与Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES值不同步。 这就是为什么我认为使用Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES是一个更好的“一刀切”的方法。

你能跟踪服务是否正在运行吗？ 如果无障碍服务启用不应该也运行？

public class MyAccessibilityService extends AccessibilityService{ public static boolean isEnabled = false; @Override public void onServiceConnected() { isEnabled = true; } @Override public void onDestroy(){ isEnabled = false; }

当您的活动服务刚刚开始时获取ID。 在您的Activity服务OnSeriviceCeonnected后，所有的初始化调用。 用这个…

AccessibilityServiceInfo serviceInfo = this.getServiceInfo(); String accessibilityId = serviceInfo.getId();

需要Jelly Bean API

然后，您可以使用Martin的代码(isAccessibilityEnabled)来检查正在运行的服务。

这需要更多的时间

AccessibilityManager am = (AccessibilityManager) context .getSystemService(Context.ACCESSIBILITY_SERVICE);

AccessibilityManager accessibilityManager = (AccessibilityManager)context.getSystemService(Context.ACCESSIBILITY_SERVICE); List runningservice = accessibilityManager.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_ALL_MASK); accessibilityManager.addAccessibilityStateChangeListener(new AccessibilityManager.AccessibilityStateChangeListener() { @Override public void onAccessibilityStateChanged(boolean b) { Toast.makeText(MainActivity.this, "permission "+b, Toast.LENGTH_SHORT).show(); } });

Listner会在状态改变的时候被调用，你可以跟踪布尔值来检查权限，这是迄今为止最简单和最轻的解决scheme来检查权限