Android仿微信拍摄短视频

近期做项目需要添加上传短视频功能，功能设置为类似于微信，点击开始拍摄，设置最长拍摄时间，经过研究最终实现了这个功能，下面就和大家分享一下，希望对你有帮助。

1.视频录制自定义控件：

public class MovieRecorderView extends LinearLayout implements OnErrorListener {
 private SurfaceView mSurfaceView;
 private SurfaceHolder mSurfaceHolder;
 private ProgressBar mProgressBar;
 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 File mVecordFile = null;// 文件
 public MovieRecorderView(Context context) {
 this(context, null);
 }
 public MovieRecorderView(Context context, AttributeSet attrs) {
 this(context, attrs, 0);
 }
 @SuppressLint("NewApi")
 public MovieRecorderView(Context context, AttributeSet attrs, int defStyle) {
 super(context, attrs, defStyle);
 TypedArray a = context.obtainStyledAttributes(attrs,
 R.styleable.MovieRecorderView, defStyle, 0);
 mWidth = a.getInteger(R.styleable.MovieRecorderView_width, 320);// 默认320
 mHeight = a.getInteger(R.styleable.MovieRecorderView_height, 240);// 默认240
 isOpenCamera = a.getBoolean(
 R.styleable.MovieRecorderView_is_open_camera, true);// 默认打开
 mRecordMaxTime = a.getInteger(
 R.styleable.MovieRecorderView_record_max_time, 10);// 默认为10
 LayoutInflater.from(context)
 .inflate(R.layout.movie_recorder_view, this);
 mSurfaceView = (SurfaceView) findViewById(R.id.surfaceview);
 mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
 mProgressBar.setMax(mRecordMaxTime);// 设置进度条最大量
 mSurfaceHolder = mSurfaceView.getHolder();
 mSurfaceHolder.addCallback(new CustomCallBack());
 mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
 a.recycle();
 }
 
 private class CustomCallBack implements 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) {
 if (!isOpenCamera)
 return;
 freeCameraResource();
 }
 }
 
 private void initCamera() throws IOException {
 if (mCamera != null) {
 freeCameraResource();
 }
 try {
 mCamera = Camera.open();
 } catch (Exception e) {
 e.printStackTrace();
 freeCameraResource();
 }
 if (mCamera == null)
 return;
 setCameraParams();
 mCamera.setDisplayOrientation(90);
 mCamera.setPreviewDisplay(mSurfaceHolder);
 mCamera.startPreview();
 mCamera.unlock();
 }
 
 private void setCameraParams() {
 if (mCamera != null) {
 Parameters params = mCamera.getParameters();
 params.set("orientation", "portrait");
 mCamera.setParameters(params);
 }
 }
 
 private void freeCameraResource() {
 if (mCamera != null) {
 mCamera.setPreviewCallback(null);
 mCamera.stopPreview();
 mCamera.lock();
 mCamera.release();
 mCamera = null;
 }
 }
 private void createRecordDir() {
 //录制的视频保存文件夹
 File sampleDir = new File(Environment.getExternalStorageDirectory()
 + File.separator + "ysb/video/");//录制视频的保存地址
 if (!sampleDir.exists()) {
 sampleDir.mkdirs();
 }
 File vecordDir = sampleDir;
 // 创建文件
 try {
 mVecordFile = File.createTempFile("recording", ".mp4", vecordDir);// mp4格式的录制的视频文件
 } catch (IOException e) {
 e.printStackTrace();
 }
 }
 
 @SuppressLint("NewApi")
 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(VideoSource.CAMERA);// 视频源
 mMediaRecorder.setAudioSource(AudioSource.MIC);// 音频源
 mMediaRecorder.setOutputFormat(OutputFormat.MPEG_4);// 视频输出格式
 mMediaRecorder.setAudioEncoder(AudioEncoder.AMR_NB);// 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 * 100);// 设置帧频率，然后就清晰了
 mMediaRecorder.setOrientationHint(90);// 输出旋转90度，保持竖屏录制
 mMediaRecorder.setVideoEncoder(VideoEncoder.MPEG_4_SP);// 视频录制格式
 // 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();
 }
 }
 
 public void record(final OnRecordFinishListener onRecordFinishListener) {
 this.mOnRecordFinishListener = onRecordFinishListener;
 createRecordDir();
 try {
 if (!isOpenCamera)// 如果未打开摄像头，则打开
 initCamera();
 initRecord();
 mTimeCount = 0;// 时间计数器重新赋值
 mTimer = new Timer();
 mTimer.schedule(new TimerTask() {
 @Override
 public void run() {
  mTimeCount++;
  mProgressBar.setProgress(mTimeCount);// 设置进度条
  if (mTimeCount == mRecordMaxTime) {// 达到指定时间，停止拍摄
  stop();
  if (mOnRecordFinishListener != null)  mOnRecordFinishListener.onRecordFinish();
  }
 }
 }, 0, 1000);
 } catch (IOException e) {
 e.printStackTrace();
 }
 }
 
 public void stop() {
 stopRecord();
 releaseRecord();
 freeCameraResource();
 }
 
 public void stopRecord() {
 mProgressBar.setProgress(0);
 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();
 }
 }
 }
 
 private void releaseRecord() {
 if (mMediaRecorder != null) {
 mMediaRecorder.setOnErrorListener(null);
 try {
 mMediaRecorder.release();
 } catch (IllegalStateException e) {
 e.printStackTrace();
 } catch (Exception e) {
 e.printStackTrace();
 }
 }
 mMediaRecorder = null;
 }
 public int getTimeCount() {
 return mTimeCount;
 }
 //返回录制的视频文件
 public File getmVecordFile() {
 return mVecordFile;
 }
 
 public interface OnRecordFinishListener {
 public void onRecordFinish();
 }
 @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();
 }
 }
}

2.视频录制界面文件movie_recorder_view.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:background="@android:color/background_dark"
 android:orientation="vertical">
 <SurfaceView 
 android:id="@+id/surfaceview" 
 android:layout_width="fill_parent" 
 android:layout_height="0dp"
 android:layout_weight="1"
 />
 <ProgressBar
 android:id="@+id/progressBar"
 style="?android:attr/progressBarStyleHorizontal"
 android:layout_width="match_parent"
 android:layout_height="2dp" 
 />
</LinearLayout>

做好这些准备工作，下面我们就可以开始设计我们的视频录制功能了。PS：以上代码取至网上，在此向大牛致敬。

3.拍摄主界面，拍摄界面有两部分组成，上面是视频拍摄控件显示，下面是用户点击拍摄按钮，配置文件：activity_main.xml。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:background="@android:color/white"
 android:orientation="vertical">
<com.example.wechatvideorecorddemo.MovieRecorderView
 android:id="@+id/movieRecorderView"
 android:layout_width="match_parent"
 android:layout_height="0dp"
 android:layout_weight="1"
 android:layout_margin="3dp" />
 <Button
 android:id="@+id/shoot_button"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_gravity="center" android:background="@drawable/bg_movie_add_shoot"
 android:text="按住拍" 
 android:textColor="#20b6ff"/>
</LinearLayout>

4.有了主界面的视图，下面我们就开始书写我们的Activity文件MainActivity.java：

public class MainActivity extends Activity {
 private MovieRecorderView mRecorderView;//视频录制控件
 private Button mShootBtn;//视频开始录制按钮
 private boolean isFinish = true;
 private boolean success = false;//防止录制完成后出现多次跳转事件
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 mRecorderView = (MovieRecorderView) findViewById(R.id.movieRecorderView);
 mShootBtn = (Button) findViewById(R.id.shoot_button);
 //用户长按事件监听
 mShootBtn.setOnTouchListener(new OnTouchListener() {
 @Override
 public boolean onTouch(View v, MotionEvent event) {
 if (event.getAction() == MotionEvent.ACTION_DOWN) {//用户按下拍摄按钮
  mShootBtn.setBackgroundResource(R.drawable.bg_movie_add_shoot_select);
  mRecorderView.record(new OnRecordFinishListener() {
  @Override
  public void onRecordFinish() {
  if(!success&&mRecorderView.getTimeCount()<10){//判断用户按下时间是否大于10秒
  success = true;
  handler.sendEmptyMessage(1);
  }
  }
  });
 } else if (event.getAction() == MotionEvent.ACTION_UP) {//用户抬起拍摄按钮
  mShootBtn.setBackgroundResource(R.drawable.bg_movie_add_shoot);
  if (mRecorderView.getTimeCount() > 3){//判断用户按下时间是否大于3秒
  if(!success){
  success = true;
  handler.sendEmptyMessage(1);
  }
  } else {
  success = false;
  if (mRecorderView.getmVecordFile() != null)
 mRecorderView.getmVecordFile().delete();//删除录制的过短视频
  mRecorderView.stop();//停止录制
  Toast.makeText(MainActivity.this, "视频录制时间太短", Toast.LENGTH_SHORT).show();
  }
 }
 return true;
 }
 });
 }
 @Override
 public void onResume() {
 super.onResume();
 isFinish = true;
 if (mRecorderView.getmVecordFile() != null)
 mRecorderView.getmVecordFile().delete();//视频使用后删除
 }
 @Override
 public void onSaveInstanceState(Bundle outState) {
 super.onSaveInstanceState(outState);
 isFinish = false;
 success = false;
 mRecorderView.stop();//停止录制
 }
 @Override
 public void onPause() {
 super.onPause();
 }
 @Override
 public void onDestroy() {
 super.onDestroy();
 }
 private Handler handler = new Handler() {
 @Override
 public void handleMessage(Message msg) {
 if(success){
 finishActivity();
 }
 }
 };
 //视频录制结束后，跳转的函数
 private void finishActivity() {
 if (isFinish) {
 mRecorderView.stop();
 Intent intent = new Intent(this, SuccessActivity.class);
 Bundle bundle = new Bundle();
 bundle.putString("text", mRecorderView.getmVecordFile().toString());
 intent.putExtras(bundle);
 startActivity(intent);
 }
 success = false;
 }
 
 public interface OnShootCompletionListener {
 public void OnShootSuccess(String path, int second);
 public void OnShootFailure();
 }
}

到这里我们仿微信的短视频拍摄就已经大功告成，那么下面我们检验一下，我们录制的效果如何，下面我以Android提供的视频播放控件(VideoView)为大家介绍一下如何播放录制的短视频。

5.播放视频的配置文件activity_success.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:background="@android:color/white"
 android:orientation="vertical">
 <TextView 
 android:id="@+id/text"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_gravity="center"
 android:text="@string/app_name" />
 <LinearLayout 
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="horizontal"
 >
 <Button 
 android:id="@+id/button1"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:gravity="center"
 android:padding="5dp"
 android:text="播放"
 />
 <Button 
 android:id="@+id/button2"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:gravity="center"
 android:padding="5dp"
 android:text="暂停"
 />
 <Button 
 android:id="@+id/button3"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:gravity="center"
 android:padding="5dp"
 android:text="重播"
 />
 <Button 
 android:id="@+id/button4"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:gravity="center"
 android:padding="5dp"
 android:text="视频长度"
 />
 </LinearLayout>
 <VideoView
 android:id="@+id/videoView1"
 android:layout_width="wrap_content"
 android:layout_height="500dp" />
</LinearLayout>

6.视频播放的控制代码SuccessActivity.java:

public class SuccessActivity extends Activity implements OnClickListener{
 private TextView text;//视频保存的路径
 private Button button1;//播放开关
 private Button button2;//暂停开关
 private Button button3;//重新播放开关
 private Button button4;//视频大小开关
 private VideoView videoView1;//视频播放控件
 private String file;//视频路径
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_success);
 Bundle bundle = getIntent().getExtras();
 file = bundle.getString("text");//获得拍摄的短视频保存地址
 init();
 setValue();
 }
 //初始化
 private void init() {
 text = (TextView) findViewById(R.id.text);
 button1 = (Button) findViewById(R.id.button1);
 button2 = (Button) findViewById(R.id.button2);
 button3 = (Button) findViewById(R.id.button3);
 button4 = (Button) findViewById(R.id.button4);
 videoView1 = (VideoView) findViewById(R.id.videoView1);
 }
 //设置
 private void setValue() {
 text.setText(file);
 button1.setOnClickListener(this);
 button2.setOnClickListener(this);
 button3.setOnClickListener(this);
 button4.setOnClickListener(this);
 videoView1.setVideoPath(file);
 }
 @Override
 public void onClick(View v) {
 switch (v.getId()) {
 case R.id.button1:
 videoView1.start();
 break;
 case R.id.button2:
 videoView1.pause(); 
 break;
 case R.id.button3:
 videoView1.resume();
 videoView1.start();
 break;
 case R.id.button4:
 Toast.makeText(this, "视频长度："+(videoView1.getDuration()/1024)+"M", Toast.LENGTH_SHORT).show();
 break;
 default:
 break;
 }
 } 
}

7.添加权限：

<!-- 视频录制的权限star -->
<!-- 摄像头 -->
<uses-permission android:name="android.permission.CAMERA" />
<!-- 音频即声音 -->
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<!-- sd卡写入权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- 硬件支持 -->
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<!-- 视频录制的权限end -->

功能界面截图：

好了，到这里关于拍摄短视频的知识就和大家分享完毕，具体的实现很简单，相信大家看到这里已经已经学会了，当然如果你还有什么疑问，可以留言讨论。最后给大家分享一个demo的下载地址，方便大家下载学习，下载地址：http://xiazai.jb51.net/201612/yuanma/WeChatVideoRecordDemo_jb51.rar

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