--- /dev/null
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.util;
+
+import android.content.Context;
+import android.support.v4.view.accessibility.AccessibilityRecordCompat;
+import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityManager;
+
+import com.android.gallery3d.common.ApiHelper;
+
+/**
+ * AccessibilityUtils provides functions needed in accessibility mode. All the functions
+ * in this class are made compatible with gingerbread and later API's
+*/
+public class AccessibilityUtils {
+ public static void makeAnnouncement(View view, CharSequence announcement) {
+ if (view == null)
+ return;
+ if (ApiHelper.HAS_ANNOUNCE_FOR_ACCESSIBILITY) {
+ view.announceForAccessibility(announcement);
+ } else {
+ // For API 15 and earlier, we need to construct an accessibility event
+ Context ctx = view.getContext();
+ AccessibilityManager am = (AccessibilityManager) ctx.getSystemService(
+ Context.ACCESSIBILITY_SERVICE);
+ if (!am.isEnabled()) return;
+ AccessibilityEvent event = AccessibilityEvent.obtain(
+ AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
+ AccessibilityRecordCompat arc = new AccessibilityRecordCompat(event);
+ arc.setSource(view);
+ event.setClassName(view.getClass().getName());
+ event.setPackageName(view.getContext().getPackageName());
+ event.setEnabled(view.isEnabled());
+ event.getText().add(announcement);
+ am.sendAccessibilityEvent(event);
+ }
+ }
+}
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