Android Open Source - PlayTunes Remote Control Helper

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License

The source code is released under:

Copyright (c) 2014, Impeccable Labs, LLC. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions ar...

Java Source Code

/*
 * Copyright (C) 2011 The Android Open Source Project
 *//  w  w w .  j a v a 2s .co  m
 * 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.ideabag.playtunes.media;

import android.media.AudioManager;
import android.util.Log;

import java.lang.reflect.Method;

/**
 * Contains methods to handle registering/unregistering remote control clients.  These methods only
 * run on ICS devices.  On previous devices, all methods are no-ops.
 */
@SuppressWarnings({"unchecked", "rawtypes"})
public class RemoteControlHelper {
    private static final String TAG = "RemoteControlHelper";

    private static boolean sHasRemoteControlAPIs = false;

    private static Method sRegisterRemoteControlClientMethod;
    private static Method sUnregisterRemoteControlClientMethod;

    static {
        try {
            ClassLoader classLoader = RemoteControlHelper.class.getClassLoader();
            Class sRemoteControlClientClass =
                    RemoteControlClientCompat.getActualRemoteControlClientClass(classLoader);
            sRegisterRemoteControlClientMethod = AudioManager.class.getMethod(
                    "registerRemoteControlClient", new Class[]{sRemoteControlClientClass});
            sUnregisterRemoteControlClientMethod = AudioManager.class.getMethod(
                    "unregisterRemoteControlClient", new Class[]{sRemoteControlClientClass});
            sHasRemoteControlAPIs = true;
        } catch (ClassNotFoundException e) {
            // Silently fail when running on an OS before ICS.
        } catch (NoSuchMethodException e) {
            // Silently fail when running on an OS before ICS.
        } catch (IllegalArgumentException e) {
            // Silently fail when running on an OS before ICS.
        } catch (SecurityException e) {
            // Silently fail when running on an OS before ICS.
        }
    }

    public static void registerRemoteControlClient(AudioManager audioManager,
            RemoteControlClientCompat remoteControlClient) {
        if (!sHasRemoteControlAPIs) {
            return;
        }

        try {
            sRegisterRemoteControlClientMethod.invoke(audioManager,
                    remoteControlClient.getActualRemoteControlClientObject());
        } catch (Exception e) {
            Log.e(TAG, e.getMessage(), e);
        }
    }


    public static void unregisterRemoteControlClient(AudioManager audioManager,
            RemoteControlClientCompat remoteControlClient) {
        if (!sHasRemoteControlAPIs) {
            return;
        }

        try {
            sUnregisterRemoteControlClientMethod.invoke(audioManager,
                    remoteControlClient.getActualRemoteControlClientObject());
        } catch (Exception e) {
            Log.e(TAG, e.getMessage(), e);
        }
    }
}

Java Source Code List

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