Android 动态获取文本宽度

package com.bbx.bmtc.helper

import android.content.Context
import android.text.Layout
import android.util.Pair
import android.widget.TextView
import com.bbx.bmtc.ext.isEmpty

object ComputeHelper {

    private fun computeTextLen(context: Context, text:String):Float{
        val tv = TextView(context)
        tv.text=text
        var tp = tv.paint
        return Layout.getDesiredWidth(tv.text.toString(),tp)
    }

    fun getTextMaxLen( context: Context,items: List>):Float{
        if (isEmpty(items))return 0.0f
        var max:Float=0.0f
        items.map {
           var tempValue= computeTextLen(context,it.first)
            if(tempValue>max){
                max=tempValue
            }
        }
       return max
    }
}