Home | History | Annotate | Download | only in util 
      1 package com.android.camera.util;
      2 
      3 import android.content.Context;
      4 import android.support.v4.view.accessibility.AccessibilityRecordCompat;
      5 import android.view.View;
      6 import android.view.accessibility.AccessibilityEvent;
      7 import android.view.accessibility.AccessibilityManager;
      8 
      9 /**
     10  * AccessibilityUtils provides functions needed in accessibility mode. All the functions
     11  * in this class are made compatible with gingerbread and later API's
     12 */
     13 public class AccessibilityUtils {
     14     public static void makeAnnouncement(View view, CharSequence announcement) {
     15         if (view == null)
     16             return;
     17         if (ApiHelper.HAS_ANNOUNCE_FOR_ACCESSIBILITY) {
     18             view.announceForAccessibility(announcement);
     19         } else {
     20             // For API 15 and earlier, we need to construct an accessibility event
     21             Context ctx = view.getContext();
     22             AccessibilityManager am = (AccessibilityManager) ctx.getSystemService(
     23                     Context.ACCESSIBILITY_SERVICE);
     24             if (!am.isEnabled()) return;
     25             AccessibilityEvent event = AccessibilityEvent.obtain(
     26                     AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
     27             AccessibilityRecordCompat arc = new AccessibilityRecordCompat(event);
     28             arc.setSource(view);
     29             event.setClassName(view.getClass().getName());
     30             event.setPackageName(view.getContext().getPackageName());
     31             event.setEnabled(view.isEnabled());
     32             event.getText().add(announcement);
     33             am.sendAccessibilityEvent(event);
     34         }
     35     }
     36 }