efunboxReader-android/app/src/main/java/com/edufound/reader/util/EfunboxUtil.java

package com.edufound.reader.util;

import android.app.Activity;
import android.app.Application;
import android.content.Context;
import android.text.TextUtils;
import android.util.DisplayMetrics;

import com.orhanobut.logger.Logger;

import io.reactivex.rxjava3.annotations.NonNull;

public class EfunboxUtil {

    /**
     * 得到宽高缩放比
     */
    public static void initDesignSize(Context context) {
        final DisplayMetrics appDisplayMetrics = context.getResources().getDisplayMetrics();
        int designWidth = 1280;
        int designHeight = 720;
        float ds = 1.0f * designWidth / designHeight;
        float ts = 1.0f * appDisplayMetrics.widthPixels / appDisplayMetrics.heightPixels;
        if (ds >= ts) {
            int targetWidth = appDisplayMetrics.widthPixels;
            float designScale = 1.0f * targetWidth / designWidth;
            setDisplay(context, designScale);
        } else {
            int targetHeight = appDisplayMetrics.heightPixels;
            float designScale = 1.0f * targetHeight / designHeight;
            setDisplay(context, designScale);
        }
    }

    /**
     * 设置dpi缩放比
     */
    public static void setDisplay(Context context, float designScale) {
        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
        displayMetrics.density = designScale;
        displayMetrics.scaledDensity = displayMetrics.density;
        displayMetrics.xdpi = displayMetrics.density * 160;
        displayMetrics.ydpi = displayMetrics.xdpi;
        displayMetrics.densityDpi = Float.valueOf(displayMetrics.xdpi).intValue();
    }


    /**
     * 判断字符串是否符合手机号码格式
     * 移动号段: 134,135,136,137,138,139,147,150,151,152,157,158,159,170,178,182,183,184,187,188
     * 联通号段: 130,131,132,145,155,156,170,171,175,176,185,186
     * 电信号段: 133,149,153,170,173,177,180,181,189
     *
     * @param mobileNums
     * @return 待检测的字符串
     */
    public static boolean isMobileNO(String mobileNums) {
        String telRegex = "^((13[0-9])|(14[5,7,9])|(15[^4])|(18[0-9])|(17[0,1,3,5,6,7,8]))\\d{8}$";// "[1]"代表第1位为数字1，"[358]"代表第二位可以为3、5、8中的一个，"\\d{9}"代表后面是可以是0～9的数字，有9位。
        if (TextUtils.isEmpty(mobileNums)) {
            return false;
        } else {
            return mobileNums.matches(telRegex);
        }
    }


    /**
     * 根据中文年纪选择换成后台枚举
     */
    public static String getEnumByCNGrade(String cnGrade) {
//                PRESCHOOL("学前"),
//                PRIMARY_FIRST_GRADE("小学一年级"),
//                PRIMARY_SECOND_GRADE("小学二年级"),
//                PRIMARY_THREE_GRADE("小学三年级"),
//                PRIMARY_SENIOR_GRADE("小学四年级");
        switch (cnGrade) {
            case "一年级":
                return "PRIMARY_FIRST_GRADE";
            case "二年级":
                return "PRIMARY_SECOND_GRADE";
            case "三年级":
                return "PRIMARY_THREE_GRADE";
            case "四年级":
                return "PRIMARY_SENIOR_GRADE";
            case "学前":
                return "PRESCHOOL";
        }
        return "undefinde";
    }

    public static String getCNGradeByEnum(String cnGrade) {
        switch (cnGrade) {
            case "PRIMARY_FIRST_GRADE":
                return "一年级";
            case "PRIMARY_SECOND_GRADE":
                return "二年级";
            case "PRIMARY_THREE_GRADE":
                return "三年级";
            case "PRIMARY_SENIOR_GRADE":
                return "四年级";
            case "PRESCHOOL":
                return "学前";
        }
        return "undefinde";
    }


}