Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 Copyright 2009-2010 AdMob, Inc.
    
 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.app.Activity;
import android.util.DisplayMetrics;

public class Main {
    private static double density = -1;

    /**
     * Gets the screen density for the device.
     * 
     * @param activity
     *          is the current activity.
     * 
     * @return A double value representing the device's screen density.
     */
    public static double getDensity(Activity activity) {
        if (density == -1) {
            DisplayMetrics displayMetrics = new DisplayMetrics();
            activity.getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
            density = displayMetrics.density;
        }

        return density;
    }
}