android页面

composeApp/src/androidMain/kotlin/com/example/testdemo/MainActivity.kt

 package com.example.testdemo
 
+import android.app.Activity
 import android.os.Bundle
+import android.view.Gravity
+import android.widget.LinearLayout
 import android.widget.TextView
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
@@ -13,10 +16,19 @@ class MainActivity : ComponentActivity() {
 
         val message = com.example.testdemo.appInfo()
 
-        // 如果你用原生 View
-        setContentView(TextView(this).apply {
+        val root = LinearLayout(this).apply {
+            orientation = LinearLayout.VERTICAL
+            gravity = Gravity.CENTER
+            setPadding(24, 24, 24, 24)
+        }
+
+        val msgView = TextView(this).apply {
             text = message
             textSize = 24f
-        })
+        }
+
+        root.addView(msgView)
+
+        setContentView(root)
     }
 }
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