Android视频录制、播放的两种方式二

2025-11-18 10:21:09

1、Mainfest.xml中的权限设置

权限：

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.CAMERA" /><uses-permission android:name="android.permission.RECORD_AUDIO" />

例子中先用mediarecorder录制保存一个视频然后播放看看效果，点击“跳转”可以调到第二个Main2Activity中，用VideoView播放刚才录制的视频，Main2Activity主要测试如何播放在本地手机的视频。

2、新建一个空白窗口Activity的XML布局视图：

Android视频录制、播放的两种方式二

3、Activity的代码如下：

public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback{ private static final String TAG = "MainActivity"; private SurfaceView mSurfaceview; private Button btn_start_or_stop; private Button btn_play; private Button btn_turnto; private boolean isRecording = false;//是否正在录像 private boolean isPlay = false;//是否正在播放录像 private MediaRecorder mRecorder; private SurfaceHolder mSurfaceHolder; private ImageView mImageView; private Camera camera; private MediaPlayer mediaPlayer; private String path; private TextView time; private int text = 0; private Handler handler = new Handler(); private Runnable runnable = new Runnable() { @Override public void run() { text++; time.setText("录制"+text+"秒"); handler.postDelayed(this,1000); } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); mSurfaceview = (SurfaceView) findViewById(R.id.surfaceview); mImageView = (ImageView) findViewById(R.id.imageview); btn_start_or_stop = (Button) findViewById(R.id.btn_start_or_stop); btn_turnto = (Button) findViewById(R.id.btn_turnto); btn_play = (Button) findViewById(R.id.btn_play); time = (TextView)findViewById(R.id.time); btn_turnto.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (path != null){ File file = new File(path); if(file.exists()){ Intent intent = new Intent(MainActivity.this,Main2Activity.class); intent.putExtra("path",path); startActivity(intent); }else { Toast.makeText(MainActivity.this,"视频文件不存在",Toast.LENGTH_SHORT).show(); } }else { Toast.makeText(MainActivity.this,"文件路径不存在",Toast.LENGTH_SHORT).show(); } } }); btn_start_or_stop.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (isPlay){ if (mediaPlayer != null){ isPlay = false; mediaPlayer.stop(); mediaPlayer.reset(); mediaPlayer.release(); mediaPlayer = null; } } if (!isRecording){ handler.postDelayed(runnable,1000); mImageView.setVisibility(View.GONE); if (mRecorder == null){ mRecorder = new MediaRecorder();// 创建mediarecorder对象 text = 0;//当点击停止之后，每一次进到这里都要重置录制的时间数 } camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK); if (camera != null){ camera.setDisplayOrientation(90);//摄像图旋转90度 camera.unlock(); mRecorder.setCamera(camera);

// 设置录制视频源为Camera(相机) } try{ mRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);

// 这两项需要放在setOutputFormat之前 mRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);

// 这两项需要放在setOutputFormat之前 mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);

//设置录制视频的输出格式 mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

//设置音频编码格式 mRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);

//设置视频编码格式// 设置录制的视频编码h263 h264 mRecorder.setVideoSize(640,480);

//设置视频的分辨率,必须放在设置编码和格式的后面，否则报错 mRecorder.setVideoFrameRate(30);

//这是设置视频录制的帧率，即1秒钟30帧。。必须放在设置编码和格式的后面，否则报错 mRecorder.setVideoEncodingBitRate(4 * 1024 * 1024);

//这个属性很重要，这个也直接影响到视频录制的大小，这个设置的越大，视频越清晰 mRecorder.setOrientationHint(90);//视频旋转90度 mRecorder.setMaxDuration(30 * 1000);

//设置录制最长时间为30秒 mRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());

//设置录制视频时的预览画面 path = getSdPath(); if (path != null){ File dir = new File(path + "/recordtest"); if (!dir.exists()){ dir.mkdir(); } path = dir + "/" + getDate() + ".mp4"; mRecorder.setOutputFile(path);

// 设置视频文件输出的路径 mRecorder.prepare();// 准备录制 mRecorder.start();// 开始录制 isRecording = true; btn_start_or_stop.setText("停止"); } }catch (Exception e){ e.printStackTrace(); } }else { if (isRecording){ try { handler.removeCallbacks(runnable); mRecorder.stop();// 停止录制 mRecorder.reset();// 恢复到未初始化的状态 mRecorder.release();// 释放资源 mRecorder = null; btn_start_or_stop.setText("开始"); if (camera != null){ camera.release(); camera = null; } }catch (Exception e){ e.printStackTrace(); } isRecording = false; } } } }); btn_play.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { isPlay = true; mImageView.setVisibility(View.GONE); if (mediaPlayer == null){ mediaPlayer = new MediaPlayer(); } mediaPlayer.reset(); Uri uri = Uri.parse(path); if (uri == null){ Toast.makeText(MainActivity.this,"请先录制视频",Toast.LENGTH_SHORT).show(); return; } mediaPlayer = MediaPlayer.create(MainActivity.this,uri);

//使用mediaplayer播放uri视频 mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

//设置播放流媒体类型。 mediaPlayer.setDisplay(mSurfaceHolder);

// 设置屏幕 try{ mediaPlayer.prepare(); }catch (Exception e){ e.printStackTrace(); } mediaPlayer.start(); } }); SurfaceHolder holder = mSurfaceview.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } @Override protected void onResume() { super.onResume(); if (!isRecording){ mImageView.setVisibility(View.VISIBLE); } } @Override public void surfaceCreated(SurfaceHolder holder) { mSurfaceHolder = holder; } /** * 获取系统时间 * * @return */ private static String getDate(){ Calendar calendar = Calendar.getInstance(); int year = calendar.get(Calendar.YEAR); int month = calendar.get(Calendar.MONTH); int day = calendar.get(Calendar.DATE); int minute = calendar.get(Calendar.MINUTE); int hour = calendar.get(Calendar.HOUR); int second = calendar.get(Calendar.SECOND); String date = "" + year + (month + 1) + day + hour + minute + second; return date; } /** * 获取SD path * * @return */ public String getSdPath(){ File sdDir = null; boolean sdCardExist = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);//判断sd卡是否存在 if (sdCardExist){ sdDir = Environment.getExternalStorageDirectory();//获取根目录 return sdDir.toString(); } return null; } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { // 将holder，这个holder为开始在onCreate里面取得的holder，将它赋给mSurfaceHolder mSurfaceHolder = holder; } @Override public void surfaceDestroyed(SurfaceHolder holder) { // surfaceDestroyed的时候同时对象设置为null mSurfaceview = null; mSurfaceHolder = null; handler.removeCallbacks(runnable); if (mRecorder != null) { mRecorder.release(); mRecorder = null; } if (camera != null) { camera.release(); camera = null; } if (mediaPlayer != null){ mediaPlayer.release(); mediaPlayer = null; } }}

4、最终效果图如下：

Android视频录制、播放的两种方式二

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