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package com.luck.picture.lib.tools;

import android.app.Activity;
import android.content.Context;
import android.util.DisplayMetrics;

/**
 * @author：luck
 * @date：2017-5-30 19:30
 * @describe：ScreenUtils
 */
public class ScreenUtils {
    /**
     * dp2px
     */
    public static int dip2px(Context context, float dpValue) {
        final float scale = context.getApplicationContext().getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }

    public static int getScreenWidth(Context context) {
        DisplayMetrics localDisplayMetrics = new DisplayMetrics();
        ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(localDisplayMetrics);
        return localDisplayMetrics.widthPixels;
    }

    public static int getScreenHeight(Context context) {
        DisplayMetrics localDisplayMetrics = new DisplayMetrics();
        ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(localDisplayMetrics);
        return localDisplayMetrics.heightPixels - getStatusBarHeight(context);
    }

    /**
     * 获取状态栏高度
     */
    public static int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result == 0 ? dip2px(context, 25) : result;
    }
}