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：

/**  * 视频播放控件  */ 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();   }  }  /**   * 初始化摄像头   */  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();  }  /**   * 设置摄像头为竖屏   */  private void setCameraParams() {   if (mCamera != null) {    Parameters params = mCamera.getParameters();    params.set("orientation", "portrait");    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() {   //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();   }  }  /**   * 初始化   * @throws IOException   */  @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();   }  }  /**   * 开始录制视频   * @param fileName   *   视频储存位置   * @param onRecordFinishListener   *   达到指定时间之后回调接口   */  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();   }  }  /**   * 停止拍摄   */  public void stop() {   stopRecord();   releaseRecord();   freeCameraResource();  }  /**   * 停止录制   */  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();    }   }  }  /**   * 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;  }  public int getTimeCount() {   return mTimeCount;  }  //返回录制的视频文件  public File getmVecordFile() {   return mVecordFile;  }  /**   * 录制完成回调接口   */  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;  }  /**   * 录制完成回调   */   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;   }  } } 

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://pan.baidu.com/s/1hqts0pm