相关疑难解决方法(0)

调用需要 API 级别 24 java.util.comparator

使用 Comparator 时出现 api 级别错误,但是当我添加 @RequiresApi(N) 注释时,错误得到解决。 错误棉绒

问题是添加 @RequiresApi(N) 注释后,此应用程序无法在低于 24 的 api 级别运行,我在 API 23 手机上收到此错误 -

 Process: com.example.chatapp, PID: 13778
java.lang.NoClassDefFoundError: adapters.chatPageAdapter$$ExternalSyntheticLambda0
    at adapters.chatPageAdapter.onBindViewHolder(chatPageAdapter.java:59)
    at adapters.chatPageAdapter.onBindViewHolder(chatPageAdapter.java:25)
    at androidx.recyclerview.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:7065)
    at androidx.recyclerview.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:7107)
    at androidx.recyclerview.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:6012)
    at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6279)
    at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
    at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
    at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
    at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
    at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
    at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
    at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
    at androidx.recyclerview.widget.RecyclerView.onMeasure(RecyclerView.java:3540)
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那么,有什么方法可以使用这个方法,甚至可以在 23 以下的 api 上运行应用程序吗?

构建.Gradle -

android {
    compileSdk 30

buildFeatures {
    viewBinding true
}

defaultConfig {
    applicationId "com.example.chatapp"
    minSdk 23
    targetSdk 30
    versionCode 1
    versionName "1.0" …
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java android android-api-levels

2
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1
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