Android m fixes

[jaishree]

I wanted to update my project to latest android compileSdkVersion 26 buildToolsVersion '27.0.3' .I have remove supportv4.jar from Active android and add latest support to gradle

[jaishree]

package com.activeandroid;

/*

• Copyright (C) 2010 Michael Pardo
• 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.database.sqlite.SQLiteDatabase; import android.support.v4.util.LruCache;

import com.activeandroid.serializer.TypeSerializer; import com.activeandroid.util.Log;

import java.util.Collection;

public final class Cache { ////////////////////////////////////////////////////////////////////////////////////// // PUBLIC CONSTANTS //////////////////////////////////////////////////////////////////////////////////////

public static final int DEFAULT_CACHE_SIZE = 1024;

//////////////////////////////////////////////////////////////////////////////////////
// PRIVATE MEMBERS
//////////////////////////////////////////////////////////////////////////////////////

private static Context sContext;

private static ModelInfo sModelInfo;
private static DatabaseHelper sDatabaseHelper;

private static LruCache<String, Model> sEntities;

private static boolean sIsInitialized = false;

//////////////////////////////////////////////////////////////////////////////////////
// CONSTRUCTORS
//////////////////////////////////////////////////////////////////////////////////////

private Cache() {
}

//////////////////////////////////////////////////////////////////////////////////////
// PUBLIC METHODS
//////////////////////////////////////////////////////////////////////////////////////

public static synchronized void initialize(Configuration configuration) {
    if (sIsInitialized) {
        Log.v("ActiveAndroid already initialized.");
        return;
    }

    sContext = configuration.getContext();
    sModelInfo = new ModelInfo(configuration);
    sDatabaseHelper = new DatabaseHelper(configuration);

    // TODO: It would be nice to override sizeOf here and calculate the memory
    // actually used, however at this point it seems like the reflection
    // required would be too costly to be of any benefit. We'll just set a max
    // object size instead.
    sEntities = new LruCache<String, Model>(configuration.getCacheSize());

    openDatabase();

    sIsInitialized = true;

    Log.v("ActiveAndroid initialized successfully.");
}

public static synchronized void clear() {
    sEntities.evictAll();
    Log.v("Cache cleared.");
}

public static synchronized void dispose() {
    closeDatabase();

    sEntities = null;
    sModelInfo = null;
    sDatabaseHelper = null;

    sIsInitialized = false;

    Log.v("ActiveAndroid disposed. Call initialize to use library.");
}

// Database access

public static boolean isInitialized() {
    return sIsInitialized;
}

public static synchronized SQLiteDatabase openDatabase() {
    return sDatabaseHelper.getWritableDatabase();
}

public static synchronized void closeDatabase() {
    sDatabaseHelper.close();
}

// Context access

public static Context getContext() {
    return sContext;
}

// Entity cache

public static String getIdentifier(Class<? extends Model> type, Long id) {
    return getTableName(type) + "@" + id;
}

public static String getIdentifier(Model entity) {
    return getIdentifier(entity.getClass(), entity.getId());
}

public static synchronized void addEntity(Model entity) {
    sEntities.put(getIdentifier(entity), entity);
}

public static synchronized Model getEntity(Class<? extends Model> type, long id) {
    return sEntities.get(getIdentifier(type, id));
}

public static synchronized void removeEntity(Model entity) {
    sEntities.remove(getIdentifier(entity));
}

// Model cache

public static synchronized Collection<TableInfo> getTableInfos() {
    return sModelInfo.getTableInfos();
}

public static synchronized TableInfo getTableInfo(Class<? extends Model> type) {
    return sModelInfo.getTableInfo(type);
}

public static synchronized TypeSerializer getParserForType(Class<?> type) {
    return sModelInfo.getTypeSerializer(type);
}

public static synchronized String getTableName(Class<? extends Model> type) {
    TableInfo tableInfo = sModelInfo.getTableInfo(type);
    if (tableInfo == null) {
        throw new NullPointerException("No table info for " + type + "; have you added the model to your manifest?");
    }
    return tableInfo.getTableName();
}

}