Kotlin写一个基类Application

最近又开始了Kotlin的学习，今天写一个BaseActivity，包括公共的context，然后kotlin获取包名，进程名，版本名称

class myApplication: Application(){
    //声明公共变量和java中public static一样
    companion object{
        var context: Context ?= null
    }
    override fun onCreate() {
        super.onCreate()
        context = this
        //获取包名
        var packageName = this.packageName
        //获取进程名
        var processName = getProcessName(android.os.Process.myPid())
        //获取版本名称
        var versionName = getVersionName()

        Log.e("motejia",packageName+"========"+processName+"========="+versionName)
    }

    fun getVersionName() : String{
        var packageManager : PackageManager = packageManager
        var info = packageManager.getPackageInfo(packageName,0)
        return info.versionName
    }

    fun getProcessName(pid : Int) : String{
        var bufferReader :BufferedReader ?= null
        bufferReader = BufferedReader(FileReader("/proc/" + pid + "/cmdline"))
        var processName = bufferReader.readLine()
        if(!TextUtils.isEmpty(processName)){
            processName = packageName.trim()
        }
        bufferReader.close()
        return processName
    }
}

 

本文地址：https://blog.csdn.net/Motejia/article/details/108578547