Compatibility.java

/*   Copyright 2011 Robot Media SL (http://www.robotmedia.net)
*
*   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 net.robotmedia.billing.utils;

import android.app.Activity;
import android.app.Service;
import android.content.Intent;
import android.content.IntentSender;
import android.util.Log;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class Compatibility {
    private static Method startIntentSender;
    public static int START_NOT_STICKY;
    @SuppressWarnings("rawtypes")
    private static final Class[] START_INTENT_SENDER_SIG = new Class[]{
            IntentSender.class, Intent.class, int.class, int.class, int.class
    };

    static {
        initCompatibility();
    }

    ;

    private static void initCompatibility() {
        try {
            final Field field = Service.class.getField("START_NOT_STICKY");
            START_NOT_STICKY = field.getInt(null);
        } catch (Exception e) {
            START_NOT_STICKY = 2;
        }
        try {
            startIntentSender = Activity.class.getMethod("startIntentSender",
                    START_INTENT_SENDER_SIG);
        } catch (SecurityException e) {
            startIntentSender = null;
        } catch (NoSuchMethodException e) {
            startIntentSender = null;
        }
    }

    public static void startIntentSender(Activity activity, IntentSender intentSender, Intent intent) {
        if (startIntentSender != null) {
            final Object[] args = new Object[5];
            args[0] = intentSender;
            args[1] = intent;
            args[2] = Integer.valueOf(0);
            args[3] = Integer.valueOf(0);
            args[4] = Integer.valueOf(0);
            try {
                startIntentSender.invoke(activity, args);
            } catch (Exception e) {
                Log.e(Compatibility.class.getSimpleName(), "startIntentSender", e);
            }
        }
    }

    public static boolean isStartIntentSenderSupported() {
        return startIntentSender != null;
    }
}