Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * 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.Cursor;
import android.net.Uri;
import java.util.*;

public class Main {
    /**
     * Reads the data from the {@code column} of the content's {@code queryUri} and returns it as an
     * Array.
     */
    static private Set<String> getColumnContentAsArray(Context context, Uri queryUri, String column) {
        Cursor cursor = context.getContentResolver().query(queryUri, new String[] { column }, null, null, null);
        Set<String> columnValues = new HashSet<>();
        try {
            if (cursor != null && cursor.moveToFirst()) {
                do {
                    columnValues.add(cursor.getString(0));
                } while (cursor.moveToNext());
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
        return columnValues;
    }
}