Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2012 Lars Werkman
 *
 * 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.util.DisplayMetrics;
import android.view.Display;
import android.view.WindowManager;

public class Main {
    private static float sDensity = Float.MAX_VALUE;

    public static float getDisplayDensity(Context context) {
        if (sDensity == Float.MAX_VALUE) {
            Display display = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE))
                    .getDefaultDisplay();
            DisplayMetrics metrics = new DisplayMetrics();
            display.getMetrics(metrics);
            sDensity = metrics.density;
        }
        return sDensity;
    }
}