自定义视频拍摄屏幕 [英] Custom Video Recording Screen

问题描述

我想实现它开始时，我的自定义视频录制屏幕用我自己的按钮，将自动启动录像停止录制，并与其他按钮的应用程序。我所做的设计有按键的布局到现在，但如何添加视频录制屏幕的background..Please帮助！

I am trying to implement an application which when starts starts video recording automatically with my custom video recording screen with my own button to stop the recording and with other buttons. What I have done is designed the layout with buttons till now but how to add video recording screen in the background..Please help.!

推荐答案

这是我做到了这一点：

public class MainActivity extends Activity implements SurfaceHolder.Callback {
    private MediaRecorder recorder;
    private SurfaceHolder surfaceHolder;
    private CamcorderProfile camcorderProfile;
    private Camera camera;
    boolean recording = false;
    boolean usecamera = true;
    boolean previewRunning = false;
    SurfaceView surfaceView;
    Button btnStart, btnStop;
    File root;
    File file;
    Boolean isSDPresent;
    SimpleDateFormat simpleDateFormat;
    String timeStamp;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        setContentView(R.layout.activity_main);
        initComs();
        actionListener();
    }

    private void initComs() {
        simpleDateFormat = new SimpleDateFormat("ddMMyyyyhhmmss");
        timeStamp = simpleDateFormat.format(new Date());
        camcorderProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
        surfaceView = (SurfaceView) findViewById(R.id.preview);
        surfaceHolder = surfaceView.getHolder();
        surfaceHolder.addCallback(this);
        btnStop = (Button) findViewById(R.id.btn_stop);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        isSDPresent = android.os.Environment.getExternalStorageState().equals(
                android.os.Environment.MEDIA_MOUNTED);

    }

    public static float megabytesAvailable(File f) {
        StatFs stat = new StatFs(f.getPath());
        long bytesAvailable = (long) stat.getBlockSize()
                * (long) stat.getAvailableBlocks();
        return bytesAvailable / (1024.f * 1024.f);
    }



    private void actionListener() {
        btnStop.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                if (recording) {
                    recorder.stop();
                    if (usecamera) {
                        try {
                            camera.reconnect();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    // recorder.release();
                    recording = false;
                    // Let's prepareRecorder so we can record again
                    prepareRecorder();
                }

            }
        });
    }

    private void prepareRecorder() {
        recorder = new MediaRecorder();
        recorder.setPreviewDisplay(surfaceHolder.getSurface());
        if (usecamera) {
            camera.unlock();
            recorder.setCamera(camera);
        }
        recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
        recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);

        recorder.setProfile(camcorderProfile);

        if (camcorderProfile.fileFormat == MediaRecorder.OutputFormat.MPEG_4) {
            recorder.setOutputFile("/sdcard/XYZApp/" + "XYZAppVideo" + ""
                    + new SimpleDateFormat("ddMMyyyyHHmmss").format(new Date())
                    + ".mp4");
        } else if (camcorderProfile.fileFormat == MediaRecorder.OutputFormat.MPEG_4) {
            recorder.setOutputFile("/sdcard/XYZApp/" + "XYZAppVideo" + ""
                    + new SimpleDateFormat("ddMMyyyyHHmmss").format(new Date())
                    + ".mp4");
        } else {
            recorder.setOutputFile("/sdcard/XYZApp/" + "XYZAppVideo" + ""
                    + new SimpleDateFormat("ddMMyyyyHHmmss").format(new Date())
                    + ".mp4");
        }

        try {
            recorder.prepare();
        } catch (IllegalStateException e) {
            e.printStackTrace();
            finish();
        } catch (IOException e) {
            e.printStackTrace();
            finish();
        }
    }

    public void surfaceCreated(SurfaceHolder holder) {
        System.out.println("onsurfacecreated");

        if (usecamera) {
            camera = Camera.open();

            try {
                camera.setPreviewDisplay(holder);
                camera.startPreview();
                previewRunning = true;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
        System.out.println("onsurface changed");

        if (!recording && usecamera) {
            if (previewRunning) {
                camera.stopPreview();
            }

            try {
                Camera.Parameters p = camera.getParameters();

                p.setPreviewSize(camcorderProfile.videoFrameWidth,
                        camcorderProfile.videoFrameHeight);
                p.setPreviewFrameRate(camcorderProfile.videoFrameRate);

                camera.setParameters(p);

                camera.setPreviewDisplay(holder);
                camera.startPreview();
                previewRunning = true;
            } catch (IOException e) {
                e.printStackTrace();
            }

            prepareRecorder();
            if (!recording) {
                recording = true;
                recorder.start();
            }
        }
    }

    public void surfaceDestroyed(SurfaceHolder holder) {
        if (recording) {
            recorder.stop();
            recording = false;
        }
        recorder.release();
        if (usecamera) {
            previewRunning = false;
            // camera.lock();
            camera.release();
        }
        finish();
    }
}

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