實(shí)現(xiàn)拍照錄像功能我們選擇SurfaceView,利用android原生API進(jìn)行拍，錄像。滿足簡(jiǎn)單的功能需求。無需繼承第三方類庫(kù)。

import android.content.Context; import android.content.res.Configuration; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.ImageFormat; import android.graphics.Matrix; import android.graphics.SurfaceTexture; import android.hardware.Camera; import android.media.MediaRecorder; import android.util.AttributeSet; import android.util.Log; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.widget.Toast;import java.io.IOException;import static android.hardware.Camera.Parameters.FOCUS_MODE_AUTO;public class CameraSurfaceView extends SurfaceView implements SurfaceHolder.Callback, Camera.AutoFocusCallback, View.OnClickListener {protected static final int[] VIDEO_320 = {320, 240};protected static final int[] VIDEO_480 = {640, 480};protected static final int[] VIDEO_720 = {1280, 720};protected static final int[] VIDEO_1080 = {1920, 1080};private int screenOritation = Configuration.ORIENTATION_PORTRAIT;private boolean mOpenBackCamera = true;private SurfaceHolder mSurfaceHolder;private SurfaceTexture mSurfaceTexture;private boolean mRunInBackground = false;boolean isAttachedWindow = false;private Camera mCamera;private Camera.Parameters mParam;private byte[] previewBuffer;private int mCameraId;protected int previewformat = ImageFormat.NV21;Context context;public CameraSurfaceView(Context context) {super(context);init(context);}public CameraSurfaceView(Context context, AttributeSet attrs) {super(context, attrs);init(context);}public CameraSurfaceView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);init(context);}private void init(Context context) {this.context = context;cameraState = CameraState.START;if (cameraStateListener != null) {cameraStateListener.onCameraStateChange(cameraState);}openCamera();if (context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {screenOritation = Configuration.ORIENTATION_LANDSCAPE;}mSurfaceHolder = getHolder();mSurfaceHolder.addCallback(this);mSurfaceTexture = new SurfaceTexture(10);setOnClickListener(this);post(new Runnable() {@Overridepublic void run() {if(!isAttachedWindow){mRunInBackground = true;startPreview();}}});}@Overrideprotected void onAttachedToWindow() {super.onAttachedToWindow();isAttachedWindow = true;}private void openCamera() {if (mOpenBackCamera) {mCameraId = findCamera(false);} else {mCameraId = findCamera(true);}if (mCameraId == -1) {mCameraId = 0;}try {mCamera = Camera.open(mCameraId);} catch (Exception ee) {mCamera = null;cameraState = CameraState.ERROR;if (cameraStateListener != null) {cameraStateListener.onCameraStateChange(cameraState);}}if (mCamera == null) {Toast.makeText(context, "打開攝像頭失敗", Toast.LENGTH_SHORT).show();return;}}private int findCamera(boolean front) {int cameraCount;try {Camera.CameraInfo cameraInfo = new Camera.CameraInfo();cameraCount = Camera.getNumberOfCameras();for (int camIdx = 0; camIdx < cameraCount; camIdx++) {Camera.getCameraInfo(camIdx, cameraInfo);int facing = front ? 1 : 0;if (cameraInfo.facing == facing) {return camIdx;}}} catch (Exception e) {e.printStackTrace();}return -1;}public boolean setDefaultCamera(boolean backCamera) {if (mOpenBackCamera == backCamera) return false;if (isRecording) {Toast.makeText(context, "請(qǐng)先結(jié)束錄像", Toast.LENGTH_SHORT).show();return false;}mOpenBackCamera = backCamera;if (mCamera != null) {closeCamera();openCamera();startPreview();}return true;}public void closeCamera() {stopRecord();stopPreview();releaseCamera();}private void releaseCamera() {try {if (mCamera != null) {mCamera.setPreviewCallback(null);mCamera.setPreviewCallbackWithBuffer(null);mCamera.stopPreview();mCamera.release();mCamera = null;}} catch (Exception ee) {}}private boolean isSupportCameraLight() {boolean mIsSupportCameraLight = false;try {if (mCamera != null) {Camera.Parameters parameter = mCamera.getParameters();Object a = parameter.getSupportedFlashModes();if (a == null) {mIsSupportCameraLight = false;} else {mIsSupportCameraLight = true;}}} catch (Exception e) {mIsSupportCameraLight = false;e.printStackTrace();}return mIsSupportCameraLight;}private Camera.PreviewCallback previewCallback = new Camera.PreviewCallback() {public synchronized void onPreviewFrame(byte[] data, Camera camera) {if (data == null) {releaseCamera();return;}//you can code media hereif (cameraState != CameraState.PREVIEW) {cameraState = CameraState.PREVIEW;if (cameraStateListener != null) {cameraStateListener.onCameraStateChange(cameraState);}}mCamera.addCallbackBuffer(previewBuffer);}};//設(shè)置Camera各項(xiàng)參數(shù)private void startPreview() {if (mCamera == null) return;try {mParam = mCamera.getParameters();mParam.setPreviewFormat(previewformat);mParam.setRotation(0);Camera.Size previewSize = CamParaUtil.getSize(mParam.getSupportedPreviewSizes(), 1000,mCamera.new Size(VIDEO_720[0], VIDEO_720[1]));mParam.setPreviewSize(previewSize.width, previewSize.height);int yuv_buffersize = previewSize.width * previewSize.height * ImageFormat.getBitsPerPixel(previewformat) / 8;previewBuffer = new byte[yuv_buffersize];Camera.Size pictureSize = CamParaUtil.getSize(mParam.getSupportedPictureSizes(), 1500,mCamera.new Size(VIDEO_1080[0], VIDEO_1080[1]));mParam.setPictureSize(pictureSize.width, pictureSize.height);if (CamParaUtil.isSupportedFormats(mParam.getSupportedPictureFormats(), ImageFormat.JPEG)) {mParam.setPictureFormat(ImageFormat.JPEG);mParam.setJpegQuality(100);}if (CamParaUtil.isSupportedFocusMode(mParam.getSupportedFocusModes(), FOCUS_MODE_AUTO)) {mParam.setFocusMode(FOCUS_MODE_AUTO);}if (screenOritation != Configuration.ORIENTATION_LANDSCAPE) {mParam.set("orientation", "portrait");mCamera.setDisplayOrientation(90);} else {mParam.set("orientation", "landscape");mCamera.setDisplayOrientation(0);}if (mRunInBackground) {mCamera.setPreviewTexture(mSurfaceTexture);mCamera.addCallbackBuffer(previewBuffer); // mCamera.setPreviewCallbackWithBuffer(previewCallback);//設(shè)置攝像頭預(yù)覽幀回調(diào)} else {mCamera.setPreviewDisplay(mSurfaceHolder); // mCamera.setPreviewCallback(previewCallback);//設(shè)置攝像頭預(yù)覽幀回調(diào)}mCamera.setParameters(mParam);mCamera.startPreview();if (cameraState != CameraState.START) {cameraState = CameraState.START;if (cameraStateListener != null) {cameraStateListener.onCameraStateChange(cameraState);}}} catch (Exception e) {releaseCamera();return;}try {String mode = mCamera.getParameters().getFocusMode();if (("auto".equals(mode)) || ("macro".equals(mode))) {mCamera.autoFocus(null);}} catch (Exception e) {}}private void stopPreview() {if (mCamera == null) return;try {if (mRunInBackground) {mCamera.setPreviewCallbackWithBuffer(null);mCamera.stopPreview();} else {mCamera.setPreviewCallback(null);mCamera.stopPreview();}if (cameraState != CameraState.STOP) {cameraState = CameraState.STOP;if (cameraStateListener != null) {cameraStateListener.onCameraStateChange(cameraState);}}} catch (Exception ee) {}}@Overridepublic void onClick(View v) {if (mCamera != null) {mCamera.autoFocus(null);}}@Overridepublic void surfaceCreated(SurfaceHolder holder) {stopPreview();startPreview();}@Overridepublic void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}@Overridepublic void surfaceDestroyed(SurfaceHolder holder) {stopPreview();if (mRunInBackground)startPreview();}protected CameraState cameraState;private CameraStateListener cameraStateListener;public enum CameraState {START, PREVIEW, STOP, ERROR}public void setOnCameraStateListener(CameraStateListener listener) {this.cameraStateListener = listener;}public interface CameraStateListener {void onCameraStateChange(CameraState paramCameraState);}/*** ___________________________________前/后臺(tái)運(yùn)行______________________________________**/public void setRunBack(boolean b) {if (mCamera == null) return;if (b == mRunInBackground) return;if(!b && !isAttachedWindow){Toast.makeText(context, "Vew未依附在Window,無法顯示", Toast.LENGTH_SHORT).show();return;}mRunInBackground = b;if (b)setVisibility(View.GONE);elsesetVisibility(View.VISIBLE);}/*** ___________________________________開關(guān)閃光燈______________________________________**/public void switchLight(boolean open) {if (mCamera == null) return;try {if (mCamera != null) {if (open) {Camera.Parameters parameter = mCamera.getParameters();if (parameter.getFlashMode().equals("off")) {parameter.setFlashMode("torch");mCamera.setParameters(parameter);} else {parameter.setFlashMode("off");mCamera.setParameters(parameter);}} else {Camera.Parameters parameter = mCamera.getParameters();if ((parameter.getFlashMode() != null) &&(parameter.getFlashMode().equals("torch"))) {parameter.setFlashMode("off");mCamera.setParameters(parameter);}}}} catch (Exception e) {e.printStackTrace();}}/*** ___________________________________以下為拍照模塊______________________________________**/public void capture() {if (mCamera == null) return;if (!FileUtil.isExternalStorageWritable()) {Toast.makeText(context, "請(qǐng)插入存儲(chǔ)卡", Toast.LENGTH_SHORT).show();return;}mCamera.autoFocus(this);}@Overridepublic void onAutoFocus(boolean success, Camera camera) {if (success) {try {mCamera.takePicture(null, null, new Camera.PictureCallback() {@Overridepublic void onPictureTaken(byte[] data, Camera camera) {Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);Matrix matrix = new Matrix();if (mOpenBackCamera) {matrix.setRotate(90);} else {matrix.setRotate(270);matrix.postScale(-1, 1);}bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);FileUtil.saveBitmap(bitmap);Toast.makeText(context, "拍照成功", Toast.LENGTH_SHORT).show();startPreview();}});} catch (Exception e) {if (isRecording) {Toast.makeText(context, "請(qǐng)先結(jié)束錄像", Toast.LENGTH_SHORT).show();}}}}/*** ___________________________________以下為視頻錄制模塊______________________________________**/MediaRecorder mediaRecorder = new MediaRecorder();private boolean isRecording = false;public boolean isRecording() {return isRecording;}public boolean startRecord(String path) {return startRecord(-1, path,null);}public boolean startRecord(int maxDurationMs, String path,MediaRecorder.OnInfoListener onInfoListener) {if (mCamera == null) return false;if (!FileUtil.isExternalStorageWritable()) {Toast.makeText(context, "請(qǐng)插入存儲(chǔ)卡", Toast.LENGTH_SHORT).show();return false;}mCamera.unlock();mediaRecorder.reset();mediaRecorder.setCamera(mCamera);mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);Camera.Size videoSize = CamParaUtil.getSize(mParam.getSupportedVideoSizes(), 1200,mCamera.new Size(VIDEO_1080[0], VIDEO_1080[1]));mediaRecorder.setVideoSize(videoSize.width, videoSize.height);mediaRecorder.setVideoEncodingBitRate(5 * 1024 * 1024); // mediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());//設(shè)置錄制預(yù)覽surfaceif (mOpenBackCamera) {mediaRecorder.setOrientationHint(90);} else {if (screenOritation == Configuration.ORIENTATION_LANDSCAPE)mediaRecorder.setOrientationHint(90);elsemediaRecorder.setOrientationHint(270);}if (maxDurationMs != -1) {mediaRecorder.setMaxDuration(maxDurationMs);mediaRecorder.setOnInfoListener(onInfoListener);}mediaRecorder.setOutputFile(path);try {mediaRecorder.prepare();mediaRecorder.start();isRecording = true;} catch (IOException e) {e.printStackTrace();return false;}return true;}public void stopRecord() {if (!isRecording) return;mediaRecorder.setPreviewDisplay(null);try {mediaRecorder.stop();isRecording = false;Toast.makeText(context, "視頻已保存", Toast.LENGTH_SHORT).show();} catch (IllegalStateException e) {Log.d("error", "stopRecord: "+e);e.printStackTrace();}}/**_________________________________________________________________________________________**/}

具體請(qǐng)看demo中的用法，附上github連接
https://github.com/Liberations/CameraSurfaceView

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