问题描述
我有以下课程:
@Parcelize
data class Collection<T : Parcelable> constructor(
var models: List<T>,var cursor: String?
) : Parcelable
当我使用 Kotlin 1.4.10
时,项目构建正确且没有任何错误,然后我将项目更新为 Kotlin 1.4.21
,并迁移到使用 kotlin-parcelize
而不是 kotlin-android-extensions
,因此在 Kotlin 更新后,在构建项目时出现以下错误:
> Task :domain:kaptDebugKotlin Failed
/Library/DevelopmentArea/workspace/baaz_android_new/clean_domain/domain/build/tmp/kapt3/stubs/debug/com/myapp/domain/model/Collection.java:101: error: non-static type variable T cannot be referenced from a static context
public final com.myapp.domain.model.Collection<T>[] newArray(int size) {
^/Library/DevelopmentArea/workspace/baaz_android_new/clean_domain/domain/build/tmp/kapt3/stubs/debug/com/myapp/domain/model/Collection.java:110: error: non-static type variable T cannot be referenced from a static context
public final com.myapp.domain.model.Collection<T> createFromParcel(@org.jetbrains.annotations.NotNull()
注意:我使用的是 Android Studio 4.1.1
解决方法
目前为了修复我得到的错误,同时继续使用 Kotlin 1.4.21,我刚刚从任何具有泛型类型用法的类中删除了 @Parcelize
注释,就像问题中的那个一样,并且刚刚实现Parcelable
的旧方式如下所示:
data class Collection<T> constructor(
var models: List<T>,var cursor: String?
) : Parcelable {
constructor(parcel: Parcel) : this(
mutableListOf<T>().also { list: List<T> ->
parcel.readList(list,Collection<T>::models.javaClass.classLoader)
},parcel.readString())
override fun writeToParcel(parcel: Parcel,flags: Int) {
parcel.writeList(models)
parcel.writeString(cursor)
}
override fun describeContents(): Int = 0
companion object {
@JvmField
val CREATOR = object : Parcelable.Creator<Collection<Parcelable>> {
override fun createFromParcel(source: Parcel): Collection<Parcelable> {
return Collection(source)
}
override fun newArray(size: Int): Array<Collection<Parcelable>?> {
return arrayOfNulls(size)
}
}
}
}