java.lang.IllegalStateException: ScrollView can host only one direct child at androidx.core.widget.NestedScrollView.addView(NestedScrollView.java:507) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1131) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1130) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.inflate(LayoutInflater.java:686) at android.view.LayoutInflater.inflate(LayoutInflater.java:505) at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:360) at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:443) at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:121) at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:722) at com.android.tools.idea.rendering.RenderTask.lambda$inflate$9(RenderTask.java:879) at com.android.tools.idea.rendering.RenderExecutor$runAsyncActionWithTimeout$3.run(RenderExecutor.kt:194) at com.android.tools.idea.rendering.RenderExecutor$PriorityRunnable.run(RenderExecutor.kt:292) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829)

这个异常提示是 ScrollView 只能容纳一个直接子 View，但是在添加子 View 的时候添加了多个直接子 View 导致的。需要检查一下代码中 ScrollView 和其子 View 的添加逻辑，确保只有一个直接子 View 被添加到 ScrollView 中。如果需要添加多个子 View，可以将它们包裹在一个 ViewGroup 中，再将 ViewGroup 添加到 ScrollView 中。