更新 activity_main.xml

app/src/main/res/layout/activity_main.xml

@@ -5,25 +5,32 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".MainActivity">
+    <!-- 用于显示日志标题的 TextView -->
+    <TextView
+        android:id="@+id/logTitleTextView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="日志"
+        android:textSize="18sp"
+        android:textStyle="bold"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
+    <!-- ScrollView 包含一个 TextView 用于显示日志内容 -->
+    <ScrollView
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintTop_toBottomOf="@id/logTitleTextView"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent">
 
         <TextView
-        android:id="@+id/textView"
+            android:id="@+id/logTextView"
-        android:layout_width="wrap_content"
+            android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+            android:layout_height="wrap_content" />
-        android:text="Hello World!"
+    </ScrollView>
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-    <Button
-        android:id="@+id/myButton"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Click Me"
-        app:layout_constraintTop_toBottomOf="@id/textView"
-        app:layout_constraintStart_toStartOf="@id/textView"
-        app:layout_constraintEnd_toEndOf="@id/textView" />
 
 
 </androidx.constraintlayout.widget.ConstraintLayout>