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320mHeight = 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 {@Overridepublic void surfaceCreated(SurfaceHolder holder) {if (!isOpenCamera)return;try {initCamera();} catch (IOException e) {e.printStackTrace();}}@Overridepublic void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {}@Overridepublic 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() {@Overridepublic 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();}@Overridepublic 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"/><ProgressBarandroid: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.MovieRecorderViewandroid:id="@+id/movieRecorderView"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1"android:layout_margin="3dp" /><Buttonandroid: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
@Overrideprotected 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() {@Overridepublic 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() {@Overridepublic 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;}});}@Overridepublic void onResume() {super.onResume();isFinish = true;if (mRecorderView.getmVecordFile() != null)mRecorderView.getmVecordFile().delete();//视频使用后删除
    }@Overridepublic void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);isFinish = false;success = false;mRecorderView.stop();//停止录制
    }@Overridepublic void onPause() {super.onPause();}@Overridepublic void onDestroy() {super.onDestroy();}private Handler handler = new Handler() {@Overridepublic 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><VideoViewandroid: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
@Overrideprotected 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);}@Overridepublic 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://pan.baidu.com/s/1hqts0pm