Android Studio Camera2预览画面无法添加UI

Question

Android Studio Camera2 preview screen cannot add UI. I wonder if I can add other UI to the camera preview screen? (Title Bar, Button, Text, etc.) I tried to add the above UI elements in the XML settings, but still no response during execution.

The following is my activity_main.xml code:

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="10dp"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="657dp"
        android:background="#000"
        android:orientation="vertical"
        tools:context=".MainActivity">
    </FrameLayout>

</RelativeLayout>

The following is my fragment_camera.xml code:

    <?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="10dp"
    android:orientation="vertical"
    tools:context=".CameraFragment">

    <com.lightweh.camera2preview.AutoFitTextureView
        android:id="@+id/textureView"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"/>

</FrameLayout >

Other codes can refer to: https://github.com/xGonZh10n/Camera2Preview

Answer 1

Is there any error? Can you show us error logs? Check your permission in Android manifest. Maybe you missing this line.

<uses-permission android:name="android.permission.CAMERA" />

I have a suggestion for you. Camera2API is easier than other custom libs to integrate. Reference: https://developer.android.com/guide/topics/media/camera