private void updateServicesPreferences() {
// Since services category is auto generated we have to do a pass
// to generate it since services can come and go and then based on
// the global accessibility state to decided whether it is enabled.
// Generate.
mServicesCategory.removeAll();
AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(getActivity());
List<AccessibilityServiceInfo> installedServices =
accessibilityManager.getInstalledAccessibilityServiceList();
Set<ComponentName> enabledServices =
AccessibilityUtils.getEnabledServicesFromSettings(getActivity());
List<String> permittedServices = mDpm.getPermittedAccessibilityServices(UserHandle.myUserId());
final boolean accessibilityEnabled =
Settings.Secure.getInt(getContentResolver(), Settings.Secure.ACCESSIBILITY_ENABLED, 0) == 1;
for (int i = 0, count = installedServices.size(); i < count; ++i) {
AccessibilityServiceInfo info = installedServices.get(i);
PreferenceScreen preference = getPreferenceManager().createPreferenceScreen(getActivity());
String title = info.getResolveInfo().loadLabel(getPackageManager()).toString();
ServiceInfo serviceInfo = info.getResolveInfo().serviceInfo;
ComponentName componentName = new ComponentName(serviceInfo.packageName, serviceInfo.name);
preference.setKey(componentName.flattenToString());
preference.setTitle(title);
final boolean serviceEnabled =
accessibilityEnabled && enabledServices.contains(componentName);
String serviceEnabledString;
if (serviceEnabled) {
serviceEnabledString = getString(R.string.accessibility_feature_state_on);
} else {
serviceEnabledString = getString(R.string.accessibility_feature_state_off);
}
// Disable all accessibility services that are not permitted.
String packageName = serviceInfo.packageName;
boolean serviceAllowed = permittedServices == null || permittedServices.contains(packageName);
preference.setEnabled(serviceAllowed || serviceEnabled);
String summaryString;
if (serviceAllowed) {
summaryString = serviceEnabledString;
} else {
summaryString = getString(R.string.accessibility_feature_or_input_method_not_allowed);
}
preference.setSummary(summaryString);
preference.setOrder(i);
preference.setFragment(ToggleAccessibilityServicePreferenceFragment.class.getName());
preference.setPersistent(true);
Bundle extras = preference.getExtras();
extras.putString(EXTRA_PREFERENCE_KEY, preference.getKey());
extras.putBoolean(EXTRA_CHECKED, serviceEnabled);
extras.putString(EXTRA_TITLE, title);
String description = info.loadDescription(getPackageManager());
if (TextUtils.isEmpty(description)) {
description = getString(R.string.accessibility_service_default_description);
}
extras.putString(EXTRA_SUMMARY, description);
String settingsClassName = info.getSettingsActivityName();
if (!TextUtils.isEmpty(settingsClassName)) {
extras.putString(
EXTRA_SETTINGS_TITLE, getString(R.string.accessibility_menu_item_settings));
extras.putString(
EXTRA_SETTINGS_COMPONENT_NAME,
new ComponentName(info.getResolveInfo().serviceInfo.packageName, settingsClassName)
.flattenToString());
}
extras.putParcelable(EXTRA_COMPONENT_NAME, componentName);
mServicesCategory.addPreference(preference);
}
if (mServicesCategory.getPreferenceCount() == 0) {
if (mNoServicesMessagePreference == null) {
mNoServicesMessagePreference = new Preference(getActivity());
mNoServicesMessagePreference.setPersistent(false);
mNoServicesMessagePreference.setLayoutResource(R.layout.text_description_preference);
mNoServicesMessagePreference.setSelectable(false);
mNoServicesMessagePreference.setSummary(
getString(R.string.accessibility_no_services_installed));
}
mServicesCategory.addPreference(mNoServicesMessagePreference);
}
}
