Kotlin 按行读取文件

package com.ted.testcase

import android.text.TextUtils
import android.util.Log
import com.ted.android.utils.TedSDKLog
import com.ted.testcase.bean.Sms
import java.io.File
import java.io.InputStream

object DemoSmsLoader {
    private const val TAG = "DemoSmsLoader"
    private val sms: Sms? = null

    fun loadSms(path: String): List<Sms>? {
        var file = File(path)
        if (!file.exists()) {
            TedSDKLog.e(TAG, "样本 $path 不存在")
            return null
        }
        val result: ArrayList<Sms> = ArrayList()
        val inputStream: InputStream = File(path).inputStream()
        inputStream.bufferedReader().useLines { lines ->
            lines.forEach {
//                TedSDKLog.d(TAG, "sms: $it")
                if (TextUtils.isEmpty(it)) return@forEach
                if (!it.contains("\t")) return@forEach
                var array = it.split("\t")
                if (TextUtils.isEmpty(array[1])) return@forEach
                var sms = Sms(array[0], array[1])
                result.add(sms)
//                TedSDKLog.d(TAG, "adding sms $sms")
            }
        }
        return result
    }

}