Commonsguy Camera lib for android的集成显示空白预览

Question

我正在尝试将CamCoder集成到类似于instagram的位置，但是作为一个开始，我试图使用Commonsguy lib中的以下代码来放置Recorder Preview

MainActivity如下

@SuppressLint("SimpleDateFormat")
public class RecorderActivity extends BaseActivity implements CamCoderView.Contract
{
    //private CamCoderView ffc = null;
    //private CamCoderView std = null;
    private CamCoderView camcoder = null;

    private boolean hasTwoCameras = (Camera.getNumberOfCameras() > 1);
    private boolean singleShot = true;

    private ImageButton captureBtn;
    private ImageButton rotateBtn;  
    private ImageButton doneBtn;    

    private int cameraType = Camera.CameraInfo.CAMERA_FACING_BACK;

    private boolean isCapturePressed = false;

    private ArrayList<String> pathNames = new ArrayList<String>();
    private String randomPathName;

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_record_layout);
        WindowManager.LayoutParams layout = getWindow().getAttributes();
        layout.screenBrightness = 1F;
        getWindow().setAttributes(layout);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

        camcoder = CamCoderView.newInstance(false);
        getFragmentManager().beginTransaction()
                            .replace(R.id.container, camcoder ).commit();

        randomPathName =  new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());

        captureBtn = (ImageButton) findViewById(R.id.captureBtn);
        doneBtn    = (ImageButton) findViewById(R.id.doneBtn);
        rotateBtn  = (ImageButton) findViewById(R.id.rotateBtn);

        if (hasTwoCameras)
            rotateBtn.setEnabled(true);

        rotateBtn.setOnClickListener(new View.OnClickListener() 
        {
            @Override
            public void onClick(View v) 
            {
                if (cameraType == Camera.CameraInfo.CAMERA_FACING_BACK)
                {        
                    cameraType = Camera.CameraInfo.CAMERA_FACING_FRONT;
                    camcoder = CamCoderView.newInstance(true);
                    getFragmentManager().beginTransaction()
                                      .replace(R.id.container, camcoder ).commit();
                }
                else
                {
                    cameraType = Camera.CameraInfo.CAMERA_FACING_BACK;
                    camcoder = CamCoderView.newInstance(false);
                    getFragmentManager().beginTransaction()
                                      .replace(R.id.container, camcoder ).commit();                 
                }
            }
        });

        doneBtn.setOnClickListener(new View.OnClickListener() 
        {
            @Override
            public void onClick(View v) 
            {               
            }
        });

        captureBtn.setOnTouchListener(new OnTouchListener() 
        {
            @SuppressLint("SdCardPath")
            @Override
            public boolean onTouch(View arg0, MotionEvent event) 
            {
                if(event.getAction() == MotionEvent.ACTION_DOWN)
                {
                    if(isCapturePressed == false)
                    {
                        isCapturePressed = true;
                        String path = getOutputMediaFile().getAbsolutePath();
                        pathNames.add(path);
                        camcoder.startRecording(path);
                    }
                }
                else if (event.getAction() == MotionEvent.ACTION_UP)
                {
                    isCapturePressed = false;
                    try {
                        camcoder.stopRecording();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
                return false;
            }
        });
    }

    @SuppressLint("DefaultLocale")
    @Override 
    public void onBackPressed()
    {
        super.onBackPressed();
        if (pathNames != null)
        {
            for (int i = 0 ; i < pathNames.size(); i++)
            {
                File file = new File(pathNames.get(i));
                if(file.exists())
                {
                    file.delete();
                }
            }
        }
        finish();
    }

    @SuppressLint("SimpleDateFormat")
    private File getOutputMediaFile() 
    {
        File filesDir = getDir("users", Context.MODE_PRIVATE); //Creating an internal dir;
        if(!filesDir.isDirectory())
        {
            if (!filesDir.mkdirs()) 
            {
                Log.d("MyCameraApp", "failed to create directory");
                return null;
            }
        } 

        File mediaFile;
        mediaFile = new File(filesDir.getPath() + File.separator
                + "vid_" + randomPathName + "_" + String.valueOf(pathNames.size()) +".mp4");

        return mediaFile;
    }

    @Override
    public void onDestroy()
    {
        super.onDestroy();
    }

    @Override
    public boolean isSingleShotMode() 
    {
        return(singleShot);
    }   

    @Override
    public void setSingleShotMode(boolean mode) 
    {
        singleShot = mode;
    }

    @Override
    public void callUIMethodForStore(Intent intent) {       
    }   
}

CameraView如下

public class CamCoderView extends CameraFragment
{
    private FrameLayout preview;            
    private static final String KEY_USE_FFC = "USE_FFC";

    static CamCoderView newInstance(boolean useFFC)
    {
        CamCoderView f = new CamCoderView();
        Bundle args = new Bundle();
        args.putBoolean(KEY_USE_FFC, useFFC);
        f.setArguments(args);
        return(f);
    }

    @Override
    public void onCreate(Bundle state) 
    {
        super.onCreate(state);
        setHost(new MyCameraHost(getActivity()));
      }


    @Override
     public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) 
    {
        View cameraView = super.onCreateView(inflater, container, savedInstanceState);
        View view = inflater.inflate(R.layout.fragment, container, false);
        preview = (FrameLayout)view.findViewById(R.id.camera);
        preview.addView(cameraView);

        if(isAutoFocusAvailable())
        {
            autoFocus();
        }
        return view;
    }

    @Override
    public void onDestroy()
    {
        super.onDestroy();
    }

    public class MyCameraHost extends SimpleCameraHost
   {
        boolean supportsFaces=false;

        public MyCameraHost(Context _ctxt) {
          super(_ctxt);
        }

        @Override
        public boolean useFrontFacingCamera() {
          return(getArguments().getBoolean(KEY_USE_FFC));
        }

        @Override
        public boolean useSingleShotMode() {
          return false;
        }

        @Override
        public void saveImage(byte[] image) 
        {
        }

        @Override
        public void autoFocusAvailable() {
        }

        @Override
        public void autoFocusUnavailable() {
        }

        @Override
        public void onCameraFail(CameraHost.FailureReason reason) {
          super.onCameraFail(reason);

          Toast.makeText(getActivity(),
                         "Sorry, but you cannot use the camera now!",
                         Toast.LENGTH_LONG).show();
        }

        @Override
        public Parameters adjustPreviewParameters(Parameters parameters)
        {
          return(super.adjustPreviewParameters(parameters));
        }

    }

    Contract getContract() 
    {
        return((Contract)getActivity());
    }

    interface Contract  
    {
        boolean isSingleShotMode();
        void setSingleShotMode(boolean mode);
    }

    public void startRecording(String path)
    {
        try {
            record();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

在我的HTC SENSE上，它像Charm一样工作，但是我的s3根本不工作。

Answer 1

好的，问题已解决，似乎

<style name="AppBaseTheme" parent="android:style/Theme.Light.NoTitleBar">
    <!--
        Theme customizations available in newer API levels can go in
        res/values-vXX/styles.xml, while customizations related to
        backward-compatibility can go here.
    -->
</style>

<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
    <!-- All customizations that are NOT specific to a particular API-level can go here. -->

    <!-- <item name="android:background">@drawable/main_bg</item> -->
    <!-- <item name="android:windowBackground">@drawable/main_bg</item> -->
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowFullscreen">false</item>
</style> 

在应用程序上的设置主题导致了此问题，我已经删除了它，现在可以正常使用了！ 奇怪