实现了双屏摄像头显示，添加了部分代码

app/src/main/AndroidManifest.xml

@@ -16,7 +16,7 @@
         android:maxSdkVersion="32" />
 
     <application
-        android:name=".App"
+        android:name=".MyApp"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -28,16 +28,7 @@
         android:usesCleartextTraffic="true"
         tools:targetApi="31">
         <activity
-            android:name=".activity.Camera2Activity"
-            android:exported="true">
-            <!--            <intent-filter>-->
-            <!--                <action android:name="android.intent.action.MAIN" />-->
-
-            <!--                <category android:name="android.intent.category.LAUNCHER" />-->
-            <!--            </intent-filter>-->
-        </activity>
-        <activity
-            android:name=".activity.MainActivity"
+            android:name=".activity.InitActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -45,6 +36,10 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".activity.MainActivity"
+            android:exported="true">
+        </activity>
     </application>
 
 </manifest>