package com.demo.lib.common.util.common;

import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.util.DisplayMetrics;
import android.util.TypedValue;

public class DimenUtils {

    public static int dipToPixels(int dip, Context context) {
        Resources r = context.getResources();
        float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip,
                r.getDisplayMetrics());
        return (int) px;
    }

    public static int pxToDip(int px, Context context) {
        Resources r = context.getResources();
        // float dip = TypedValue.complexToDimensionPixelSize(data, metrics)
        // TypedValue.complexToDimensionPixelOffset(data, metrics)
        return 0;
    }

    public static int spToPixels(int sp, Context context) {
        Resources r = context.getResources();
        float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp,
                r.getDisplayMetrics());
        return (int) px;
    }

    private static int deviceWidth = 0;

    public static int getScreenWidth(Activity activity) {
        if (deviceWidth == 0) {
            DisplayMetrics metric = new DisplayMetrics();
            activity.getWindowManager().getDefaultDisplay().getMetrics(metric);
            deviceWidth = metric.widthPixels;
        }
        return deviceWidth;
    }

    public static int getScreenHeight(Activity activity) {
        DisplayMetrics metric = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(metric);
        return metric.heightPixels;
    }

    /**
     * 根据手机的分辨率从 dp 的单位 转成为 px(像素)
     */
    public static int dip2px(Context context, float dpValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }

    /**
     * 根据手机的分辨率从 px(像素) 的单位 转成为 dp
     */
    public static int px2dip(Context context, float pxValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (pxValue / scale + 0.5f);
    }
}