DensityUtil.java

package com.example.administrator.cookman.utils;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Point;
import android.view.Display;
import android.view.WindowManager;

/**
 * Created by Administrator on 2017/2/19.
 */

public class DensityUtil {
    private static int screenWidth = 0;
    private static int screenHeight = 0;
    public static int dip2px(Context var0, float var1) {
        float var2 = var0.getResources().getDisplayMetrics().density;
        return (int)(var1 * var2 + 0.5F);
    }
    public static int dp2px(float value) {
        final float scale = Resources.getSystem().getDisplayMetrics().densityDpi;
        return (int) (value * (scale / 160) + 0.5f);
    }
    public static int px2dip(Context var0, float var1) {
        float var2 = var0.getResources().getDisplayMetrics().density;
        return (int)(var1 / var2 + 0.5F);
    }
    public static int sp2px(Context var0, float var1) {
        float var2 = var0.getResources().getDisplayMetrics().scaledDensity;
        return (int)(var1 * var2 + 0.5F);
    }
    public static int px2sp(Context var0, float var1) {
        float var2 = var0.getResources().getDisplayMetrics().scaledDensity;
        return (int)(var1 / var2 + 0.5F);
    }
    public static int getScreenWidth(Context c) {
        if (screenWidth == 0) {
            WindowManager wm = (WindowManager) c.getSystemService(Context.WINDOW_SERVICE);
            Display display = wm.getDefaultDisplay();
            Point size = new Point();
            display.getSize(size);
            screenWidth = size.x;
        }
        return screenWidth;
    }
}