将摄像头和返回按钮调整到屏幕下

Application/src/main/res/layout-land/fragment_camera2_basic.xml

@@ -17,21 +17,15 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    tools:ignore="MissingDefaultResource">
 
-    <FrameLayout
+    <com.xypower.mppreview.AutoFitTextureView
-        android:id="@+id/container"
+        android:id="@+id/texture"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:background="#000" >
+        app:layout_constraintStart_toStartOf="parent"
-
+        app:layout_constraintTop_toTopOf="parent" />
-        <com.xypower.mppreview.AutoFitTextureView
-            android:id="@+id/texture"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent" />
-    </FrameLayout>
 
 
 
@@ -63,4 +57,4 @@
         />
 
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+    </androidx.constraintlayout.widget.ConstraintLayout>