android camerax如何初始化相机

要使用Android CameraX库初始化相机，请按照以下步骤操作：

1. 首先，确保在项目的build.gradle文件中添加了CameraX库的依赖项：

dependencies {
    implementation 'androidx.camera:camera-core:1.0.0'
    implementation 'androidx.camera:camera-camera2:1.0.0'
    implementation 'androidx.camera:camera-view:1.0.0'
}

2. 在AndroidManifest.xml文件中添加必要的权限：

<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.front" />

3. 在activity_main.xml布局文件中添加CameraView组件：

<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <androidx.camera.core.CameraView
            android:id="@+id/camera_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </RelativeLayout>
</layout>

4. 在MainActivity.java文件中初始化CameraX：

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.camera.core.CameraSelector;
import androidx.camera.core.ImageAnalysis;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.CameraInfoUnavailableException;
import androidx.camera.core.CameraSelector.Builder;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.core.ImageAnalyzer.AnalyzerResult;
import androidx.camera.core.ImageAnalyzer.AnalyzerResults;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.ImageAnalyzer;
import androidx.camera.core.ImageProxy.PlaneProxy;
import androidx.camera.