安卓利用CameraX实现拍照录像

废话不多说直接上代码

一，导入依赖

   // CameraX 相关依赖    def cameraxVersion = "1.1.0-alpha05"    implementation "androidx.camera:camera-core:${cameraxVersion}"    implementation "androidx.camera:camera-camera2:${cameraxVersion}"    implementation "androidx.camera:camera-lifecycle:${cameraxVersion}"    implementation 'androidx.camera:camera-view:1.0.0-alpha25'

二、添加权限

三、实现代码

impindex.php/tags-1038.html" >ort android.Manifest;import android.annotation.SuppressLint;import android.content.ContentValues;import android.content.pm.PackageManager;import android.os.Bundle;import android.provider.MediaStore;import android.view.View;import android.widget.Button;import android.widget.Toast;import androidx.annotation.NonNull;import androidx.annotation.Nullable;import androidx.appcompat.app.AppCompatActivity;import androidx.camera.core.CameraSelector;import androidx.camera.core.ImageCapture;import androidx.camera.core.ImageCaptureException;import androidx.camera.core.Preview;import androidx.camera.core.VideoCapture;import androidx.camera.lifecycle.ProcessCameraProvider;import androidx.camera.view.PreviewView;import androidx.core.app.ActivityCompat;import androidx.core.content.ContextCompat;import com.google.common.util.concurrent.ListenableFuture;public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private static final int REQUEST_CODE_RECORD_AUDIO_PERMISSION = 1001;    private static final int REQUEST_CODE_CAMERA_PERMISSION = 1002;    private static final int REQUEST_CODE_STORAGE_PERMISSION = 1003;    private ListenableFuture processCameraProviderListenableFuture;    private PreviewView previewView;    private Button btn_photograph; //拍照    private ImageCapture imageCapture;    private CameraSelector cameraSelector;    private boolean isUsingFrontCamera = false; // 默认使用前置摄像头    private Button btn_picture_recording; //录像    private VideoCapture videoCapture;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        previewView = findViewById(R.id.previewView);        btn_photograph = findViewById(R.id.btn_photograph);        btn_picture_recording = findViewById(R.id.btn_picture_recording);        btn_photograph.setOnClickListener(this);        btn_picture_recording.setOnClickListener(this);        // 检查权限        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED ||                ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED ||                ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO, Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_CODE_RECORD_AUDIO_PERMISSION);        } else {            initializeCamera();        }    }    // 初始化相机    private void initializeCamera() {        processCameraProviderListenableFuture = ProcessCameraProvider.getInstance(this);        processCameraProviderListenableFuture.addListener(() -> {            try {                ProcessCameraProvider processCameraProvider = processCameraProviderListenableFuture.get();                start(processCameraProvider);            } catch (Exception e) {                throw new RuntimeException(e);            }        }, ContextCompat.getMainExecutor(this));    }    @SuppressLint("RestrictedApi")    private void start(ProcessCameraProvider processCameraProvider) {        processCameraProvider.unbindAll();        cameraSelector = new CameraSelector.Builder()                .requireLensFacing(isUsingFrontCamera ? CameraSelector.LENS_FACING_FRONT : CameraSelector.LENS_FACING_BACK)                .build();        Preview preview = new Preview.Builder().build();        preview.setSurfaceProvider(previewView.getSurfaceProvider());        imageCapture = new ImageCapture.Builder()                .setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)                .build();        videoCapture = new VideoCapture.Builder()                .setVideoFrameRate(30)                .build();        processCameraProvider.bindToLifecycle(this, cameraSelector, preview, imageCapture, videoCapture);    }    @SuppressLint("RestrictedApi")    @Override    public void onClick(View view) {        if (view.getId() == R.id.btn_photograph) {            captureImage();        }        if (view.getId() == R.id.btn_picture_recording) {            if (btn_picture_recording.getText().equals("录像")) {                btn_picture_recording.setText("停止");                captureVideo();            } else {                btn_picture_recording.setText("录像");                videoCapture.stopRecording();            }        }    }    // 拍照    private void captureImage() {        long timeStamp = System.currentTimeMillis();        ContentValues contentValues = new ContentValues();        contentValues.put(MediaStore.MediaColumns.DISPLAY_NAME, timeStamp);        contentValues.put(MediaStore.MediaColumns.MIME_TYPE, "image/jpeg");        imageCapture.takePicture(                new ImageCapture.OutputFileOptions.Builder(                        getContentResolver(),                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI,                        contentValues                ).build(),                ContextCompat.getMainExecutor(this),                new ImageCapture.OnImageSavedCallback() {                    @Override                    public void onImageSaved(@NonNull ImageCapture.OutputFileResults outputFileResults) {                        Toast.makeText(MainActivity.this, "拍照保存成功", Toast.LENGTH_SHORT).show();                    }                    @Override                    public void onError(@NonNull ImageCaptureException exception) {                        Toast.makeText(MainActivity.this, "拍照保存失败: " + exception.getMessage(), Toast.LENGTH_SHORT).show();                    }                });    }    // 录像    @SuppressLint("RestrictedApi")    private void captureVideo() {        if (videoCapture != null) {            long timeStamp = System.currentTimeMillis();            ContentValues contentValues = new ContentValues();            contentValues.put(MediaStore.MediaColumns.DISPLAY_NAME, timeStamp);            contentValues.put(MediaStore.MediaColumns.MIME_TYPE, "video/mp4");            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {                return;            }            videoCapture.startRecording(                    new VideoCapture.OutputFileOptions.Builder(                            getContentResolver(),                            MediaStore.Video.Media.EXTERNAL_CONTENT_URI,                            contentValues                    ).build(),                    ContextCompat.getMainExecutor(this),                    new VideoCapture.OnVideoSavedCallback() {                        @Override                        public void onVideoSaved(@NonNull VideoCapture.OutputFileResults outputFileResults) {                            Toast.makeText(MainActivity.this, "视频拍摄成功", Toast.LENGTH_SHORT).show();                        }                        @Override                        public void onError(int videoCaptureError, @NonNull String message, @Nullable Throwable cause) {                            Toast.makeText(MainActivity.this, "视频拍摄失败: " + message, Toast.LENGTH_SHORT).show();                        }                    }            );        } else {            Toast.makeText(MainActivity.this, "视频录制功能未初始化", Toast.LENGTH_SHORT).show();        }    }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        if (requestCode == REQUEST_CODE_RECORD_AUDIO_PERMISSION) {            for (int i = 0; i  
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