根据DisplayMetrics.DENSITY_MEDIUM判断系统是否开启大字体，且考虑老年人使用适当放大1.25倍字体

AdaptScreenUtils.kt

/*
 *  AdaptScreenUtils.kt, 2023-01-05
 *
 *  Copyright © 2015-2023  Liangyihui. All rights reserved.
 *
 */

package com.dop.h_doctor.util

import android.content.res.Resources
import android.util.DisplayMetrics

/**
 * @author lijian
 * @date 2023/1/5
 * @since 9.5
 * @description 禁止跟随系统字体,华为简易模式
 */
object AdaptScreenUtils {
    @JvmStatic
    fun reset(resources: Resources?): Resources? {
        if (resources == null) return null
        if (resources.displayMetrics.densityDpi / resources.displayMetrics.scaledDensity < DisplayMetrics.DENSITY_MEDIUM) {
            /*
             2.计算目标值density, scaleDensity, densityDpi
             targetDensity为当前设备的宽度/设计稿固定的宽度
             targetScaleDensity：目标字体缩放Density，等比例测算
             targetDensityDpi：density = dpi / 160 即dpi = density * 160
             */
//            val displayMetrics =   HDoctorApplication.getInstance().resources.displayMetrics

            val targetDensity = resources.displayMetrics.widthPixels / 375f
//            val targetScaleDensity = targetDensity * (displayMetrics.scaledDensity / displayMetrics.density)

            val targetDensityDpi = (targetDensity * 160).toInt()
            val targetScaleDensity = targetDensity * 1.25f

//3.替换Activity的density, scaleDensity, densityDpi
//            val dm = activity.resources.displayMetrics
            resources.displayMetrics.density = targetDensity
            resources.displayMetrics.scaledDensity = targetScaleDensity
            resources.displayMetrics.densityDpi = targetDensityDpi

//            val densityDpi = resources.displayMetrics.widthPixels / 360f
//            resources.displayMetrics.densityDpi = (densityDpi * 160).toInt()
//            resources.displayMetrics.scaledDensity = densityDpi * 1.25f
        }
        return resources
    }

    @JvmStatic
    fun getTextZoom(): Int {
        Resources.getSystem()?.displayMetrics?.let {
            if (it.densityDpi / it.scaledDensity < DisplayMetrics.DENSITY_MEDIUM) {
                return 110
            }
        }
        return 100
    }
}