Android 常用工具类之 DensityUtil

DensityUtil工具类，此工具类不是网上大家用烂的那一份，是博主亲自编写，亲自测试，代码简洁清晰，可满足日常开发。

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.graphics.Point;
import android.os.Build;
import android.util.DisplayMetrics;
import android.view.Display;
import android.view.WindowManager;

/**
 * Created on 2021/4/2 14:06
 *
 * @author Gong Youqiang
 */
public class DensityUtil {
    private static int[] deviceWidthHeight = new int[2];
    public static int[] getDeviceInfo(Context context) {
        if ((deviceWidthHeight[0] == 0) && (deviceWidthHeight[1] == 0)) {
            DisplayMetrics metrics = new DisplayMetrics();
            ((Activity) context).getWindowManager().getDefaultDisplay()
                    .getMetrics(metrics);

            deviceWidthHeight[0] = metrics.widthPixels;
            deviceWidthHeight[1] = metrics.heightPixels;
        }
        return deviceWidthHeight;
    }
    /**
     *
     * @param context 上下文
     * @param dpValue dp数值
     * @return dp to  px
     */
    public static int dip2px(Context context, float dpValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);

    }
    /**
     * 获取屏幕尺寸
     */
    @SuppressWarnings("deprecation")
    @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
    public static Point getScreenSize(Context context){
        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        Display display = windowManager.getDefaultDisplay();
        if(Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB_MR2){
            return new Point(display.getWidth(), display.getHeight());
        }else{
            Point point = new Point();
            display.getSize(point);
            return point;
        }
    }
    /**
     *
     * @param context    上下文
     * @param pxValue  px的数值
     * @return  px to dp
     */
    public static int px2dip(Context context, float pxValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (pxValue / scale + 0.5f);

    }
}