編輯:關於Android編程
近期做項目需要添加上傳短視頻功能,功能設置為類似於微信,點擊開始拍攝,設置最長拍攝時間,經過研究最終實現了這個功能,下面就和大家分享一下,希望對你有幫助。
1.視頻錄制自定義控件:
/** * 視頻播放控件 */ 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;// 計時器 private OnRecordFinishListener mOnRecordFinishListener;// 錄制完成回調接口 private int mWidth;// 視頻分辨率寬度 private int mHeight;// 視頻分辨率高度 private boolean isOpenCamera;// 是否一開始就打開攝像頭 private int mRecordMaxTime;// 一次拍攝最長時間 private int mTimeCount;// 時間計數 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);// 默認320 mHeight = a.getInteger(R.styleable.MovieRecorderView_height, 240);// 默認240 isOpenCamera = a.getBoolean( R.styleable.MovieRecorderView_is_open_camera, true);// 默認打開 mRecordMaxTime = a.getInteger( R.styleable.MovieRecorderView_record_max_time, 10);// 默認為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);// 設置進度條最大量 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(); } } /** * 初始化攝像頭 */ 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(); } /** * 設置攝像頭為豎屏 */ private void setCameraParams() { if (mCamera != null) { Parameters params = mCamera.getParameters(); params.set("orientation", "portrait"); mCamera.setParameters(params); } } /** * 釋放攝像頭資源 */ private void freeCameraResource() { if (mCamera != null) { mCamera.setPreviewCallback(null); mCamera.stopPreview(); mCamera.lock(); mCamera.release(); mCamera = null; } } private void createRecordDir() { //錄制的視頻保存文件夾 File sampleDir = new File(Environment.getExternalStorageDirectory() + File.separator + "ysb/video/");//錄制視頻的保存地址 if (!sampleDir.exists()) { sampleDir.mkdirs(); } File vecordDir = sampleDir; // 創建文件 try { mVecordFile = File.createTempFile("recording", ".mp4", vecordDir);// mp4格式的錄制的視頻文件 } 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);// 視頻源 mMediaRecorder.setAudioSource(AudioSource.MIC);// 音頻源 mMediaRecorder.setOutputFormat(OutputFormat.MPEG_4);// 視頻輸出格式 mMediaRecorder.setAudioEncoder(AudioEncoder.AMR_NB);// 音頻格式 mMediaRecorder.setVideoSize(mWidth, mHeight);// 設置分辨率: // mMediaRecorder.setVideoFrameRate(16);// 這個我把它去掉了,感覺沒什麼用 mMediaRecorder.setVideoEncodingBitRate(1 * 1024 * 1024 * 100);// 設置幀頻率,然後就清晰了 mMediaRecorder.setOrientationHint(90);// 輸出旋轉90度,保持豎屏錄制 mMediaRecorder.setVideoEncoder(VideoEncoder.MPEG_4_SP);// 視頻錄制格式 // 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(); } } /** * 開始錄制視頻 * @param fileName * 視頻儲存位置 * @param onRecordFinishListener * 達到指定時間之後回調接口 */ public void record(final OnRecordFinishListener onRecordFinishListener) { this.mOnRecordFinishListener = onRecordFinishListener; createRecordDir(); try { if (!isOpenCamera)// 如果未打開攝像頭,則打開 initCamera(); initRecord(); mTimeCount = 0;// 時間計數器重新賦值 mTimer = new Timer(); mTimer.schedule(new TimerTask() { @Override public void run() { mTimeCount++; mProgressBar.setProgress(mTimeCount);// 設置進度條 if (mTimeCount == mRecordMaxTime) {// 達到指定時間,停止拍攝 stop(); if (mOnRecordFinishListener != null) mOnRecordFinishListener.onRecordFinish(); } } }, 0, 1000); } catch (IOException e) { e.printStackTrace(); } } /** * 停止拍攝 */ public void stop() { stopRecord(); releaseRecord(); freeCameraResource(); } /** * 停止錄制 */ public void stopRecord() { mProgressBar.setProgress(0); if (mTimer != null) mTimer.cancel(); if (mMediaRecorder != null) { // 設置後不會崩 mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setPreviewDisplay(null); try { mMediaRecorder.stop(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } } /** * 釋放資源 */ 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; } //返回錄制的視頻文件 public File getmVecordFile() { return mVecordFile; } /** * 錄制完成回調接口 */ 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.視頻錄制界面文件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" android:layout_width="match_parent" android:layout_height="2dp" /> </LinearLayout>
做好這些准備工作,下面我們就可以開始設計我們的視頻錄制功能了。PS:以上代碼取至網上,在此向大牛致敬。
3.拍攝主界面,拍攝界面有兩部分組成,上面是視頻拍攝控件顯示,下面是用戶點擊拍攝按鈕,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.有了主界面的視圖,下面我們就開始書寫我們的Activity文件MainActivity.java:
public class MainActivity extends Activity { private MovieRecorderView mRecorderView;//視頻錄制控件 private Button mShootBtn;//視頻開始錄制按鈕 private boolean isFinish = true; private boolean success = false;//防止錄制完成後出現多次跳轉事件 @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); //用戶長按事件監聽 mShootBtn.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_DOWN) {//用戶按下拍攝按鈕 mShootBtn.setBackgroundResource(R.drawable.bg_movie_add_shoot_select); mRecorderView.record(new OnRecordFinishListener() { @Override public void onRecordFinish() { if(!success&&mRecorderView.getTimeCount()<10){//判斷用戶按下時間是否大於10秒 success = true; handler.sendEmptyMessage(1); } } }); } else if (event.getAction() == MotionEvent.ACTION_UP) {//用戶抬起拍攝按鈕 mShootBtn.setBackgroundResource(R.drawable.bg_movie_add_shoot); if (mRecorderView.getTimeCount() > 3){//判斷用戶按下時間是否大於3秒 if(!success){ success = true; handler.sendEmptyMessage(1); } } else { success = false; if (mRecorderView.getmVecordFile() != null) mRecorderView.getmVecordFile().delete();//刪除錄制的過短視頻 mRecorderView.stop();//停止錄制 Toast.makeText(MainActivity.this, "視頻錄制時間太短", Toast.LENGTH_SHORT).show(); } } return true; } }); } @Override public void onResume() { super.onResume(); isFinish = true; if (mRecorderView.getmVecordFile() != null) mRecorderView.getmVecordFile().delete();//視頻使用後刪除 } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); isFinish = false; success = false; mRecorderView.stop();//停止錄制 } @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(); } } }; //視頻錄制結束後,跳轉的函數 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; } /** * 錄制完成回調 */ public interface OnShootCompletionListener { public void OnShootSuccess(String path, int second); public void OnShootFailure(); } }
到這裡我們仿微信的短視頻拍攝就已經大功告成,那麼下面我們檢驗一下,我們錄制的效果如何,下面我以Android提供的視頻播放控件(VideoView)為大家介紹一下如何播放錄制的短視頻。
5.播放視頻的配置文件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="暫停" /> <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="視頻長度" /> </LinearLayout> <VideoView android:id="@+id/videoView1" android:layout_width="wrap_content" android:layout_height="500dp" /> </LinearLayout>
6.視頻播放的控制代碼SuccessActivity.java:
public class SuccessActivity extends Activity implements OnClickListener{ private TextView text;//視頻保存的路徑 private Button button1;//播放開關 private Button button2;//暫停開關 private Button button3;//重新播放開關 private Button button4;//視頻大小開關 private VideoView videoView1;//視頻播放控件 private String file;//視頻路徑 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_success); Bundle bundle = getIntent().getExtras(); file = bundle.getString("text");//獲得拍攝的短視頻保存地址 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); } //設置 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, "視頻長度:"+(videoView1.getDuration()/1024)+"M", Toast.LENGTH_SHORT).show(); break; default: break; } } }
7.添加權限:
<!-- 視頻錄制的權限star --> <!-- 攝像頭 --> <uses-permission android:name="android.permission.CAMERA" /> <!-- 音頻即聲音 --> <uses-permission android:name="android.permission.RECORD_AUDIO" /> <!-- sd卡寫入權限 --> <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" /> <!-- 視頻錄制的權限end -->
功能界面截圖:
好了,到這裡關於拍攝短視頻的知識就和大家分享完畢,具體的實現很簡單,相信大家看到這裡已經已經學會了,當然如果你還有什麼疑問,可以留言討論。最後給大家分享一個demo的下載地址,方便大家下載學習,下載地址:http://xiazai.jb51.net/201612/yuanma/WeChatVideoRecordDemo_jb51.rar
以上就是本文的全部內容,希望本文的內容對大家的學習或者工作能帶來一定的幫助,同時也希望多多支持本站!
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