摘要：import java.io.*; public class IO2File { public static void main(String[] args) throws IOException { File f=new File("out.txt"); f.createNewFile(); Fi 阅读全文

摘要：前言 此篇博客讲解电池与电量的开发 代码部分 电量监听 private fun initBatteryReceiver() { mBatteryReceiver = object : BroadcastReceiver() { override fun onReceive(context: Cont 阅读全文