Determines if the generating class of an AccessibilityEvent is an instance of a given Class . - Android User Interface

Android examples for User Interface:AccessibilityEvent

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Description

Determines if the generating class of an AccessibilityEvent is an instance of a given Class .

Demo Code

/*//from www .java2 s  . co m
 * Copyright (C) 2010 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.
 */
import android.content.Context;
import android.text.SpannableStringBuilder;
import android.text.TextUtils;
import android.view.accessibility.AccessibilityEvent;
import java.util.Iterator;
import java.util.List;

public class Main{
    /**
     * Determines if the generating class of an {@link AccessibilityEvent} is an
     * instance of a given {@link Class}.
     *
     * @param context The application context.
     * @param event An {@link AccessibilityEvent} dispatched by the
     *            accessibility framework.
     * @param referenceClassName The name of a {@link Class} to match by type or
     *            inherited type.
     * @return {@code true} if the {@link AccessibilityEvent} object matches the
     *         {@link Class} by type or inherited type, {@code false} otherwise.
     */
    public static boolean eventMatchesClass(Context context,
            AccessibilityEvent event, String referenceClassName) {
        if (event == null) {
            return false;
        }

        final ClassLoadingManager loader = ClassLoadingManager
                .getInstance();
        final CharSequence eventClassName = event.getClassName();
        final CharSequence appPackage = event.getPackageName();

        return loader.checkInstanceOf(context, eventClassName, appPackage,
                referenceClassName);
    }
}

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