Android屏幕录制源码Demo下载

Android实现屏幕录制的方式介绍两种,第一种是通过adb shell命令,还一种使用SDK的提供的方法实现.

adb shell 命令

语法: screenrecord [options] <filename>

Sample:adb shell screenrecord /sdcard/demo.mp4 开始录制(录制手机屏幕; 视频格式为mp4,存放到手机sd卡里,默认录制时间为180s)参数: --sizeadb shell screenrecord --size 1280*720 /sdcard/demo.mp4指定视频分辨率大小 (指定分辨率为1280*720;不指定则默认使用手机的分辨率,为获得最佳效果,请使用设备上的高级视频编码（AVC）支持的大小)参数: --bit-rateadb shell screenrecord --bit-rate 6000000 /sdcard/demo.mp4 指定视频的比特率 (指定视频的比特率为6Mbps; 如果不指定则默认为4Mbps, 你可以增加比特率以提高视频质量或为了让文件更小而降低比特率)参数: --time-limitadb shell screenrecord  --time-limit 10 /sdcard/demo.mp4 限制录制时间 (限制视频录制时间为10s; 如果不限制,默认180s)参数: --verboseadb shell screenrecord --time-limit 10 --verbose /sdcard/demo.mp4在命令行显示录屏Log如下:xxxx:/ # screenrecord --time-limit 10 --verbose /sdcard/demo.mp4Main display is 1080x2160 @60.00fps (orientation=0)Configuring recorder for 1080x2160 video/avc at 4.00MbpsContent area is 1080x2160 at offset x=0 y=0Time limit reachedEncoder stopping; recorded 34 frames in 10 secondsStopping encoder and muxerExecuting: /system/bin/am broadcast -a android.intent.action.MEDIA_SCANNER_SCAN_FILE -d file:///sdcard/demo.mp4Broadcasting: Intent { act=android.intent.action.MEDIA_SCANNER_SCAN_FILE dat=file:///sdcard/demo.mp4 }Broadcast completed: result=0参数: --bugreport添加额外的信息,例如时间戳覆盖,这有助于捕获用于演示错误的视频参数: --help查看帮助导出视频：adb pull /sdcard/demo.mp4

如果在APP中使用,我们可以通过Process p = Runtime.getRuntime().exec(cmd)来调用shell命令.但是只有system app才能调用,可以在manifest节点中添加android:sharedUserId="android.uid.system"拥有系统级的权限

通过MediaProjection实现

1.动态申请录音和外部存储权限:

    if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED|| ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 10);}

2.获取屏幕录制的权限

    MediaProjectionManager manager = (MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE);Intent intent = new Intent(manager.createScreenCaptureIntent());startActivityForResult(intent, REQUEST_CODE);

3.启动屏幕录制服务

    Intent service = new Intent(this, ScreenRecordService.class);service.putExtra("resultCode", resultCode);service.putExtra("data", data);service.putExtra("mWidthPixels", mWidthPixels);service.putExtra("mHeightPixels", mHeightPixels);service.putExtra("mDensityDpi", mDensityDpi);startService(service);

屏幕录制服务

public class ScreenRecordService extends Service {private static final String TAG = "ScreenRecordService";private WindowManager mWindowManager;private WindowManager.LayoutParams wmParams;private LinearLayout mFloatLayout;private MediaProjection mMediaProjection;private MediaRecorder mMediaRecorder;private VirtualDisplay mVirtualDisplay;private boolean isScreenRecord;private int mScreenDensity, mWidthPixels, mHeightPixels;@Overridepublic IBinder onBind(Intent intent) {
//        return new MyBinder();return null;}@Overridepublic void onCreate() {super.onCreate();initView();}@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {int resultCode = intent.getIntExtra("resultCode", -1);Intent data = intent.getParcelableExtra("data");mWidthPixels = intent.getIntExtra("mWidthPixels", 720);mHeightPixels = intent.getIntExtra("mHeightPixels", 1080);mScreenDensity = intent.getIntExtra("mDensityDpi", 1);Log.d(TAG, "initData  -->  mScreenDensity: " + mScreenDensity + "  mWidthPixels: " + mWidthPixels + "  mHeightPixels: " + mHeightPixels);mMediaProjection = ((MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE)).getMediaProjection(resultCode, data);return super.onStartCommand(intent, flags, startId);}private void startRecorder() {Log.d(TAG, "startRecord");isScreenRecord = true;createMediaRecorder();createVirtualDisplay(); // 在mediaRecorder.prepare() 之后调用，否则报错 failed to get surfacemMediaRecorder.start();}private void createVirtualDisplay() {mVirtualDisplay = mMediaProjection.createVirtualDisplay(TAG, mWidthPixels, mHeightPixels, mScreenDensity,DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mMediaRecorder.getSurface(), null, null);}private void createMediaRecorder() {// 生成文件名SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");String curTime = formatter.format(new Date(System.currentTimeMillis()));mMediaRecorder = new MediaRecorder();//设置视频源: DEFAULT,Surface,CameramMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);//设置视频输出格式: amr_nb，amr_wb,default,mpeg_4,raw_amr,three_gppmMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);//设置视频编码格式: default, H263, H264, MPEG_4_SPmMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//        //设置音频源
//        mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
//
//        //设置音频编码格式: default，AAC，AMR_NB，AMR_WB
//        mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置视频尺寸大小mMediaRecorder.setVideoSize(mWidthPixels, mHeightPixels);//设置视频编码的码率mMediaRecorder.setVideoEncodingBitRate(5 * mWidthPixels * mHeightPixels);   // mWidthPixels * mHeightPixels//设置视频编码的帧率mMediaRecorder.setVideoFrameRate(60);   // 30//设置视频输出路径mMediaRecorder.setOutputFile(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES) + "/Ansen_" + curTime + ".mp4");try {mMediaRecorder.prepare();} catch (IOException e) {e.printStackTrace();Log.e(TAG, e.getMessage());}Log.d(TAG, "VideoSize: " + mWidthPixels + " X " + mHeightPixels + "  VideoEncodingBitRate: "+ (5 * mWidthPixels * mHeightPixels) + "  +VideoFrameRate: " + "60");}private void initView() {mWindowManager = (WindowManager) getApplication().getSystemService(getApplication().WINDOW_SERVICE);wmParams = new WindowManager.LayoutParams();wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;// 设置window type为TYPE_SYSTEM_ALERTwmParams.format = PixelFormat.RGBA_8888;// 设置图片格式,效果为背景透明wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;// 设置浮动窗口不可聚焦（实现操作除浮动窗口外的其他可见窗口的操作）wmParams.gravity = Gravity.LEFT | Gravity.TOP;// 默认位置：右下角wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;wmParams.x = (ScreenUtils.getScreenWidth(getApplicationContext()) - wmParams.width) / 2;// 设置x、y初始值，相对于gravitywmParams.y = 10;// 浮动窗口布局mFloatLayout = (LinearLayout) LayoutInflater.from(getApplication()).inflate(R.layout.screen_recorder, null);mWindowManager.addView(mFloatLayout, wmParams);final LinearLayout screenrecord = (LinearLayout) mFloatLayout.findViewById(R.id.screenrecord);final TextView title = (TextView) mFloatLayout.findViewById(R.id.screenrecord_title);final TextView close = (TextView) mFloatLayout.findViewById(R.id.screenrecord_close);final ImageView image = (ImageView) mFloatLayout.findViewById(R.id.play_stop);mFloatLayout.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));// 设置监听浮动窗口的触摸移动View.OnTouchListener mOnTouchListener = new View.OnTouchListener() {@Overridepublic boolean onTouch(View v, MotionEvent event) {// getRawX是触摸位置相对于屏幕的坐标，getX是相对于按钮的坐标wmParams.x = (int) event.getRawX() - mFloatLayout.getMeasuredWidth() / 2;Log.i(TAG, "RawX" + event.getRawX() + "  X" + event.getX());wmParams.y = (int) event.getRawY() - mFloatLayout.getMeasuredHeight() / 2 - 25;// 减25为状态栏的高度Log.i(TAG, "RawY" + event.getRawY() + "  Y" + event.getY());mWindowManager.updateViewLayout(mFloatLayout, wmParams);// 刷新return false;}};mFloatLayout.setOnTouchListener(mOnTouchListener);screenrecord.setOnTouchListener(mOnTouchListener);screenrecord.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {if (isScreenRecord) {image.setImageResource(R.mipmap.screen_record_play);title.setText("开始");stopRecord();} else {image.setImageResource(R.mipmap.screen_record_stop);title.setText("停止");startRecorder();}}});close.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {Log.d(TAG, "stopSelf");ScreenRecordService.this.stopSelf();}});}private void stopRecord() {Log.d(TAG, "stopRecord");isScreenRecord = false;mMediaRecorder.stop();mMediaRecorder.reset();}@Overridepublic void onDestroy() {super.onDestroy();Log.d(TAG, "onDestroy");if (isScreenRecord) {stopRecord();}mVirtualDisplay.release();mMediaProjection.stop();mWindowManager.removeView(mFloatLayout);}
}

代码地址

Android屏幕截图实现方式 & 系统截屏源码分析和三指截屏

Android长截屏(滚动截屏)实现原理

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