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A library jar that provides APIs for Applications written for the Google Android Platform.
package com.android.ex.photo.util;
import android.content.Context;
import android.os.Build;
import androidx.core.view.accessibility.AccessibilityEventCompat;
import androidx.core.view.accessibility.AccessibilityRecordCompat;
import android.view.View;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
public class Util {
public static boolean isTouchExplorationEnabled(AccessibilityManager accessibilityManager) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
return accessibilityManager.isTouchExplorationEnabled();
} else {
return false;
}
}
/**
* Make an announcement which is related to some sort of a context change. Also see
* {@link android.view.View#announceForAccessibility}
* @param view The view that triggered the announcement
* @param accessibilityManager AccessibilityManager instance. If it is null, the method can
* obtain an instance itself.
* @param text The announcement text
*/
public static void announceForAccessibility(
final View view, AccessibilityManager accessibilityManager,
final CharSequence text) {
// Jelly Bean added support for speaking text verbatim
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
view.announceForAccessibility(text);
return;
}
final Context context = view.getContext().getApplicationContext();
if (accessibilityManager == null) {
accessibilityManager = (AccessibilityManager) context.getSystemService(
Context.ACCESSIBILITY_SERVICE);
}
if (!accessibilityManager.isEnabled()) {
return;
}
final int eventType = AccessibilityEvent.TYPE_VIEW_FOCUSED;
// Construct an accessibility event with the minimum recommended
// attributes. An event without a class name or package may be dropped.
final AccessibilityEvent event = AccessibilityEvent.obtain(eventType);
event.getText().add(text);
event.setEnabled(view.isEnabled());
event.setClassName(view.getClass().getName());
event.setPackageName(context.getPackageName());
// JellyBean MR1 requires a source view to set the window ID.
final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
record.setSource(view);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
view.getParent().requestSendAccessibilityEvent(view, event);
} else {
// Sends the event directly through the accessibility manager.
accessibilityManager.sendAccessibilityEvent(event);
}
}
}