本文实例为大家分享了Android仿微信录制小视频的具体代码，供大家参考，具体内容如下
先上张图片看看效果
简单叙述下
- 首先通过Camera类调用系统相机
- 通过surfaceview绘制出来
- 通过MediaRecorder来录制视频
- 闪光灯 和 切换摄像头 需要重新配置Camera的参数
- Camera预览界面画面拉升的原因是因为Surfaceview的大小与设定的比例不一致的
**本次版本更新了 切换前置摄像头录制视频问题
Android部分手机录制视频适配IOS手机问题 (OPPO手机部分不适配 目前启用的H264格式)**
完整的代码
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import android.app.Activity;import android.content.Intent;import android.graphics.Bitmap;import android.hardware.Camera;import android.media.MediaMetadataRetriever;import android.media.MediaRecorder;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.view.KeyEvent;import android.view.MotionEvent;import android.view.SurfaceHolder;import android.view.SurfaceView;import android.view.View;import android.view.ViewGroup;import android.widget.Button;import android.widget.ImageView;import android.widget.ProgressBar;import android.widget.TextView;import android.widget.Toast;import com.tongxun.atongmu.dialog.CommonDialog;import java.io.File;import java.io.IOException;import java.util.List;import java.util.Timer;import java.util.TimerTask;public class CircleViedoActivity extends Activity implements View.OnClickListener,MediaRecorder.OnErrorListener { private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private ProgressBar mProgressBar; private Button shoot_button; private ImageView circle_light_btn; private ImageView circle_change_camera_btn; private TextView circle_camera_time; private MediaRecorder mMediaRecorder; private Camera mCamera; private Timer mTimer;// 计时器 private OnRecordFinishListener mOnRecordFinishListener;// 录制完成回调接口 private int mWidth;// 视频分辨率宽度 private int mHeight;// 视频分辨率高度 private boolean isOpenCamera;// 是否一开始就打开摄像头 private int mRecordMaxTime;// 一次拍摄最长时间 private int mTimeCount;// 时间计数 private int mNumberOfCameras=0;//手机摄像头的数量 Bitmap bitmap;//图片缩略图 private int screenWidth; public static File mVecordFile = null;// 文件 private boolean isOpenFlash=false; private boolean isBackCamera=true; private int mbackCamera; private int mfrontCamera; private CommonDialog commonDialog; private static final int MOVICE_SUCCESS=1000;//录制完成 private static final int MOVICE_FILE=1001;//录制失败 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_super_video); init_datas(); init_view(); set_datas(); init_event(); } private void init_datas() { isOpenCamera=true;//默认一开始就打开相机 mRecordMaxTime=10;//设置录制的时间 //获取手机摄像头的数量 Camera.CameraInfo cameraInfo=new Camera.CameraInfo(); mNumberOfCameras=Camera.getNumberOfCameras(); for(int camidx=0;camidx<mNumberOfCameras;camidx++){ Camera.getCameraInfo(camidx, cameraInfo); if(cameraInfo.facing==Camera.CameraInfo.CAMERA_FACING_BACK){ mbackCamera=camidx; }else if(cameraInfo.facing==Camera.CameraInfo.CAMERA_FACING_FRONT){ mfrontCamera=camidx; } } } private void init_view() { mWidth=640; mHeight=480; //获取屏幕的宽度 screenWidth = getWindowManager().getDefaultDisplay().getWidth(); mSurfaceView = (SurfaceView) findViewById(R.id.surfaceview);//预览界面 mProgressBar = (ProgressBar) findViewById(R.id.progressBar);//进度条 shoot_button = (Button) findViewById(R.id.shoot_button);//拍摄按钮 circle_camera_time= (TextView) findViewById(R.id.circle_camera_time); circle_change_camera_btn= (ImageView) findViewById(R.id.circle_change_camera_btn);//切换摄像头 circle_light_btn= (ImageView) findViewById(R.id.circle_light_btn);//开启闪光灯 ViewGroup.LayoutParams params=mSurfaceView.getLayoutParams(); params.height=(screenWidth*4)/3; params.width=screenWidth; mSurfaceView.setLayoutParams(params); top_model2_left_img= (ImageView)findViewById(R.id.top_model2_left_img); top_model2_left_img.setOnClickListener(this); top_model2_right_img= (ImageView)findViewById(R.id.top_model2_right_img); top_model2_right_img.setVisibility(View.INVISIBLE); top_model2_txt= (TextView)findViewById(R.id.top_model2_txt); top_model2_txt.setText("视频录制"); } private void set_datas() { mSurfaceHolder = mSurfaceView.getHolder(); mProgressBar.setMax(mRecordMaxTime);// 设置进度条最大量 mSurfaceHolder.setKeepScreenOn(true);//设置屏幕常亮 mSurfaceHolder.addCallback(new CustomCallBack()); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); circle_camera_time.setText(""); } private void init_event() { circle_light_btn.setOnClickListener(this); circle_change_camera_btn.setOnClickListener(this); shoot_button.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_DOWN) { record(new OnRecordFinishListener() { @Override public void onRecordFinish() { //录制时间达到最大值 handler.sendEmptyMessage(MOVICE_SUCCESS); } }); } else if (event.getAction() == MotionEvent.ACTION_UP) { if (mTimeCount > 1 && mTimeCount<10) { //防止达到最大值up事件 //录制时间大于一秒 handler.sendEmptyMessage(MOVICE_SUCCESS); } else if(mTimeCount<=1) { //删除小于一秒的视频 if (getmVecordFile() != null) { getmVecordFile().delete(); } handler.sendEmptyMessage(MOVICE_FILE); } } return true; } }); } @Override protected void onResume() { super.onResume(); if(mCamera!=null){ freeCameraResource(); } try { initCamera(); } catch (IOException e) { e.printStackTrace(); } } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // mRecorderView.stop(); } private Handler handler = new Handler() { @Override public void handleMessage(Message msg) { //停止拍摄 stopRecord(); switch (msg.what){ case MOVICE_SUCCESS: String msgs = "确认上传吗?"; commonDialog = new CommonDialog(CircleViedoActivity.this, new CommonDialog.GoCommonDialog() { @Override public void go() { finishActivity(); commonDialog.dismiss(); } @Override public void cancel() { //删除没有上传的视频 if (getmVecordFile() != null) { getmVecordFile().delete(); } commonDialog.dismiss(); } }, msgs, "确定", "取消"); commonDialog.show(); break; case MOVICE_FILE: Toast.makeText(CircleViedoActivity.this, "视频录制时间太短", Toast.LENGTH_SHORT).show(); break; } } }; private void finishActivity() { stop(); Bitmap bitmap = null; if (getmVecordFile() != null) { //得到文件 File类型 File mfile = getmVecordFile(); bitmap = getVideoThumbnail(mfile.toString()); } /** * 部分Android手机缩略图拉不到，找到一种解决办法不是太满意 有没有大神提供思路 */ // VideoPlayerActivity.startActivity(this, mRecorderView.getVecordFile().toString()); Intent intent = new Intent(); intent.putExtra("bitmap",bitmap); setResult(RESULT_OK,intent); finish(); } @Override public void onError(MediaRecorder mr, int what, int extra) { try { if (mr != null) mr.reset(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } @Override public void onClick(View v) { switch (v.getId()){ case R.id.circle_light_btn: //开启关闭闪光灯 默认关闭 if(isOpenFlash){ isOpenFlash=false; circle_light_btn.setImageResource(R.drawable.camera_light); }else { isOpenFlash=true; circle_light_btn.setImageResource(R.drawable.camera_no_light); } try { initCamera(); } catch (IOException e) { e.printStackTrace(); } break; case R.id.circle_change_camera_btn: if(isBackCamera){ isBackCamera=false; }else { isBackCamera=true; } try { initCamera(); } catch (IOException e) { e.printStackTrace(); } break; case R.id.top_model2_left_img: stop(); finish(); break; } } private class CustomCallBack implements SurfaceHolder.Callback { @Override public void surfaceCreated(SurfaceHolder holder) { if (!isOpenCamera) return; try { initCamera(); } catch (IOException e) { e.printStackTrace(); } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } @Override public void surfaceDestroyed(SurfaceHolder holder) { } } /** * 初始化摄像头 */ private void initCamera() throws IOException { if (mCamera != null) { freeCameraResource(); } try { if(isBackCamera){ mCamera = Camera.open(mbackCamera);//打开后摄像头 setCameraParams(isOpenFlash); }else { mCamera=Camera.open(mfrontCamera);//打开前摄像头 } } catch (Exception e) { e.printStackTrace(); freeCameraResource(); } if (mCamera == null) return; mCamera.setDisplayOrientation(90); mCamera.setPreviewDisplay(mSurfaceHolder); mCamera.startPreview(); mCamera.unlock(); } /** * 设置摄像头为竖屏 */ private void setCameraParams(Boolean isOpenFlash) { if (mCamera != null) { Camera.Parameters params = mCamera.getParameters(); //获取预览的各种分辨率 List<Camera.Size> supportedPreviewSizes = params.getSupportedPreviewSizes(); params.set("orientation", "portrait");//竖屏录制 params.setPreviewSize(mWidth, mHeight);//默认640*480 params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);//持续对焦 if(isBackCamera){ if(isOpenFlash){ //开启闪光灯 params.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH); }else { //关闭闪光灯 params.setFlashMode(Camera.Parameters.FLASH_MODE_OFF); } }else { } mCamera.setParameters(params); } } /** * 释放摄像头资源 */ private void freeCameraResource() { if (mCamera != null) { mCamera.setPreviewCallback(null); mCamera.stopPreview(); mCamera.lock(); mCamera.release(); mCamera = null; } } private void createRecordDir() { File sampleDir = new File(Environment.getExternalStorageDirectory() + File.separator + "ATOMImg/video/"); if (!sampleDir.exists()) { sampleDir.mkdirs(); } File vecordDir = sampleDir; // 创建文件 try { mVecordFile = File.createTempFile("recording", ".mp4", vecordDir);//mp4格式 } catch (IOException e) { } } /** * 初始化 */ private void initRecord() throws IOException { mMediaRecorder = new MediaRecorder(); mMediaRecorder.reset(); if (mCamera != null) mMediaRecorder.setCamera(mCamera); mMediaRecorder.setOnErrorListener(this); mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);// 视频源 mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);// 音频源 mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);// 视频输出格式 mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);// 音频格式 mMediaRecorder.setVideoSize(mWidth, mHeight);// 设置分辨率： // mMediaRecorder.setVideoFrameRate(16);// 这个我把它去掉了，感觉没什么用 mMediaRecorder.setVideoEncodingBitRate(1 * 1024 * 1024);// 设置帧频率，然后就清晰了 if(isBackCamera) { mMediaRecorder.setOrientationHint(90);// 输出旋转90度，保持竖屏录制 }else { mMediaRecorder.setOrientationHint(270); }mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);// 视频录制格式----------/** 这里是配置摄像头的重点 因为我们录制视频需要适配IOS开发和Android不同版本的手机 而IOS和Android通配的视频格式不多 我们这里采用H264格式 它的兼容范围更广阔 主要解决的就是部分OPPO手机不适配问题*/---------- // mediaRecorder.setMaxDuration(Constant.MAXVEDIOTIME * 1000); mMediaRecorder.setOutputFile(mVecordFile.getAbsolutePath()); mMediaRecorder.prepare(); try { mMediaRecorder.start(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } /** * 录制完成回调接口 */ public interface OnRecordFinishListener { public void onRecordFinish(); } /** * 录制 * @param onRecordFinishListener */ public void record(final OnRecordFinishListener onRecordFinishListener) { this.mOnRecordFinishListener = onRecordFinishListener; createRecordDir();//创建目录 try { if (!isOpenCamera)// 如果未打开摄像头，则打开 initCamera();//初始化摄像头 initRecord();//初始化录制参数 mTimeCount = 0;// 时间计数器重新赋值 mTimer = new Timer();//创建一个定时器 mTimer.schedule(new TimerTask() { @Override public void run() { // TODO Auto-generated method stub mTimeCount++; mProgressBar.setProgress(mTimeCount);// 设置进度条 // handler.sendEmptyMessage(TIME_CHANGW); runOnUiThread(new Runnable() { @Override public void run() { circle_camera_time.setText(mTimeCount + "″"); } }); if (mTimeCount == mRecordMaxTime) {// 达到指定时间，停止拍摄 //录制完成调用录制回调接口 if (mOnRecordFinishListener != null) mOnRecordFinishListener.onRecordFinish(); } } }, 0, 1000); } catch (IOException e) { e.printStackTrace(); } } /** * 停止拍摄 */ public void stop() { stopRecord(); releaseRecord(); freeCameraResource(); } /** * 停止录制 */ public void stopRecord() { mProgressBar.setProgress(0); circle_camera_time.setText(""); if (mTimer != null) mTimer.cancel(); if (mMediaRecorder != null) { // 设置后不会崩 mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setPreviewDisplay(null); try { mMediaRecorder.stop(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } } /** * 获取的视频的位置 * @return */ public File getmVecordFile() { return mVecordFile; } /** * 释放资源 */ private void releaseRecord() { if (mMediaRecorder != null) { mMediaRecorder.setOnErrorListener(null); try { mMediaRecorder.release(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } mMediaRecorder = null; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_BACK)) { stop(); finish(); return false; }else { return super.onKeyDown(keyCode, event); } } /** * 获取视频缩略图 * @param filePath * @return */ public Bitmap getVideoThumbnail(String filePath) { Bitmap bitmap = null; MediaMetadataRetriever retriever = new MediaMetadataRetriever(); try { retriever.setDataSource(filePath); bitmap = retriever.getFrameAtTime(); } catch(IllegalArgumentException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } finally { try { retriever.release(); } catch (RuntimeException e) { e.printStackTrace(); } } return bitmap; } @Override protected void onDestroy() { super.onDestroy(); if(bitmap!=null){ try { bitmap.recycle(); } catch (Exception e) { e.printStackTrace(); } bitmap=null; } }} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/qq_24731595/article/details/51940958
