Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2013 Martin Misiarz (dev.misiarz@gmail.com)
 *
 * 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.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Point;

import android.os.Build;

import android.view.Display;
import android.view.WindowManager;

public class Main {
    public static int displayWidth = -1;
    public static int displayHeight = -1;

    /**
     * Return display width in pixels.
     * @param context Context.
     * @return Display width in pixels.
     */
    public static int getDisplayWidth(Context context) {
        if (displayWidth == -1)
            calculateDisplaySize(context);

        return displayWidth;
    }

    /**
     * Calculate displey size.
     * @param context Context.
     */
    @SuppressLint("NewApi")
    @SuppressWarnings("deprecation")
    private static void calculateDisplaySize(Context context) {
        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        Display display = windowManager.getDefaultDisplay();
        Point screenSize = new Point();

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
            display.getSize(screenSize);

            displayWidth = screenSize.x;
            displayHeight = screenSize.y;
        } else {
            displayWidth = display.getWidth();
            displayHeight = display.getHeight();
        }
    }
}