<uses-permission android:name="android.permission.CAMERA" /> <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextureView android:id="@+id/textureView" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"/> <Button android:id="@+id/btnSwitchCamera" android:layout_width="match_parent"...
