[英]lateinit property instance has not been initialized, while making an app
I'm a new developer(If I can call myself one) making an alarm app.我是一名新开发人员(如果我可以称自己为一个)正在制作警报应用程序。 I think I made other parts of the app but however hard I try, I can't find out how to fix the error.
我想我制作了应用程序的其他部分,但无论我多么努力,我都不知道如何修复错误。 To access instance in AlarmManager.kt , I can't help but make instance companion object.
要访问AlarmManager.kt中的实例,我不得不让实例伴侣 object。 But I guess that makes the problem.... Please could anyone tell me how can I fix this error?
但我想这会导致问题......请有人告诉我如何解决这个错误吗? Thanks in advance!
提前致谢!
kotlin.UninitializedPropertyAccessException: lateinit property instance has not been initialized kotlin.UninitializedPropertyAccessException:lateinit 属性实例尚未初始化
↓ SampleApplication.kt ↓ SampleApplication.kt
class SampleApplication : Application() {
override fun onCreate() {
super.onCreate()
instance = this
}
companion object {
lateinit var instance: SampleApplication private set
}
}
↓AlarmManager.kt ↓AlarmManager.kt
object AlarmManager {
var mService: MusicService? = null
lateinit var mediaPlayer: MediaPlayer
lateinit var mView: View
lateinit var mTimer: Timer
val tag1 = "alarm1"
val tag2 = "alarm2"
private val windowManager: WindowManager by lazy {
SampleApplication.instance.getSystemService(Context.WINDOW_SERVICE) as WindowManager
}
You would need to register SampleApplication
in AndroidManifest file.您需要在 AndroidManifest 文件中注册
SampleApplication
。 Then only it will executed as an application class然后只有它将作为应用程序执行 class
<application
android:name=".SampleApplication">
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