Java 类android.hardware.Camera.Area 实例源码

项目：meipai-Android 文件：MediaRecorderBase.java

/**
 * 手动对焦
 *
 * @param focusAreas 对焦区域
 * @return
 */
@SuppressLint("NewApi")
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public boolean manualFocus(AutoFocusCallback cb, List<Area> focusAreas) {
    if (camera != null && focusAreas != null && mParameters != null && DeviceUtils.hasICS()) {
        try {
            camera.cancelAutoFocus();
            // getMaxNumFocusAreas检测设备是否支持
            if (mParameters.getMaxNumFocusAreas() > 0) {
                // mParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);//
                // Macro(close-up) focus mode
                mParameters.setFocusAreas(focusAreas);
            }

            if (mParameters.getMaxNumMeteringAreas() > 0)
                mParameters.setMeteringAreas(focusAreas);

            mParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);
            camera.setParameters(mParameters);
            camera.autoFocus(cb);
            return true;
        } catch (Exception e) {
            if (mOnErrorListener != null) {
                mOnErrorListener.onVideoError(MEDIA_ERROR_CAMERA_AUTO_FOCUS, 0);
            }
            if (e != null)
                Log.e("Yixia", "autoFocus", e);
        }
    }
    return false;
}

项目：WeiXinRecordedDemo 文件：MediaRecorderBase.java

/**
 * 手动对焦
 *
 * @param focusAreas 对焦区域
 * @return
 */
@SuppressLint("NewApi")
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public boolean manualFocus(AutoFocusCallback cb, List<Area> focusAreas) {
    if (camera != null && focusAreas != null && mParameters != null && DeviceUtils.hasICS()) {
        try {
            camera.cancelAutoFocus();
            // getMaxNumFocusAreas检测设备是否支持
            if (mParameters.getMaxNumFocusAreas() > 0) {
                // mParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);//
                // Macro(close-up) focus mode
                mParameters.setFocusAreas(focusAreas);
            }

            if (mParameters.getMaxNumMeteringAreas() > 0)
                mParameters.setMeteringAreas(focusAreas);

            mParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);
            camera.setParameters(mParameters);
            camera.autoFocus(cb);
            return true;
        } catch (Exception e) {
            if (mOnErrorListener != null) {
                mOnErrorListener.onVideoError(MEDIA_ERROR_CAMERA_AUTO_FOCUS, 0);
            }
            if (e != null)
                Log.e("Yixia", "autoFocus", e);
        }
    }
    return false;
}

项目：WeiXinRecordedDemo 文件：MediaRecorderBase.java

/**
 * 手动对焦
 *
 * @param focusAreas 对焦区域
 * @return
 */
@SuppressLint("NewApi")
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public boolean manualFocus(AutoFocusCallback cb, List<Area> focusAreas) {
    if (camera != null && focusAreas != null && mParameters != null && DeviceUtils.hasICS()) {
        try {
            camera.cancelAutoFocus();
            // getMaxNumFocusAreas检测设备是否支持
            if (mParameters.getMaxNumFocusAreas() > 0) {
                // mParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);//
                // Macro(close-up) focus mode
                mParameters.setFocusAreas(focusAreas);
            }

            if (mParameters.getMaxNumMeteringAreas() > 0)
                mParameters.setMeteringAreas(focusAreas);

            mParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);
            camera.setParameters(mParameters);
            camera.autoFocus(cb);
            return true;
        } catch (Exception e) {
            if (mOnErrorListener != null) {
                mOnErrorListener.onVideoError(MEDIA_ERROR_CAMERA_AUTO_FOCUS, 0);
            }
            if (e != null)
                Log.e("Yixia", "autoFocus", e);
        }
    }
    return false;
}

项目：LLApp 文件：CameraView.java

/**
 * 手动聚焦
 *  @param point 触屏坐标
 */
protected void onFocus(Point point,AutoFocusCallback callback){
    Parameters parameters=mCamera.getParameters();
    //不支持设置自定义聚焦，则使用自动聚焦，返回
    if (parameters.getMaxNumFocusAreas()<=0) {
        mCamera.autoFocus(callback);
        return;
    }
    List<Area> areas=new ArrayList<Area>();
    int left=point.x-300;
    int top=point.y-300;
    int right=point.x+300;
    int bottom=point.y+300;
    left=left<-1000?-1000:left;
    top=top<-1000?-1000:top;
    right=right>1000?1000:right;
    bottom=bottom>1000?1000:bottom;
    areas.add(new Area(new Rect(left,top,right,bottom), 100));
    parameters.setFocusAreas(areas);
    try {
        //本人使用的小米手机在设置聚焦区域的时候经常会出异常，看日志发现是框架层的字符串转int的时候出错了，
        //目测是小米修改了框架层代码导致，在此try掉，对实际聚焦效果没影响
        mCamera.setParameters(parameters);
    } catch (Exception e) {
        // TODO: handle exception
        e.printStackTrace();
    }
    mCamera.autoFocus(callback);
}

项目：Camera2 文件：FocusOverlayManager.java

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private void initializeFocusAreas(int x, int y) {
    if (mFocusArea == null) {
        mFocusArea = new ArrayList<Area>();
        mFocusArea.add(new Area(new Rect(), 1));
    }

    // Convert the coordinates to driver format.
    calculateTapArea(x, y, getAFRegionEdge(), mFocusArea.get(0).rect);
}

项目：Camera2 文件：FocusOverlayManager.java

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private void initializeMeteringAreas(int x, int y) {
    if (mMeteringArea == null) {
        mMeteringArea = new ArrayList<Area>();
        mMeteringArea.add(new Area(new Rect(), 1));
    }

    // Convert the coordinates to driver format.
    calculateTapArea(x, y, getAERegionEdge(), mMeteringArea.get(0).rect);
}

项目：nexus-camera 文件：FocusOverlayManager.java

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private void initializeFocusAreas(int x, int y) {
    if (mFocusArea == null) {
        mFocusArea = new ArrayList<Object>();
        mFocusArea.add(new Area(new Rect(), 1));
    }

    // Convert the coordinates to driver format.
    calculateTapArea(x, y, 1f, ((Area) mFocusArea.get(0)).rect);
}

项目：nexus-camera 文件：FocusOverlayManager.java

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private void initializeMeteringAreas(int x, int y) {
    if (mMeteringArea == null) {
        mMeteringArea = new ArrayList<Object>();
        mMeteringArea.add(new Area(new Rect(), 1));
    }

    // Convert the coordinates to driver format.
    // AE area is bigger because exposure is sensitive and
    // easy to over- or underexposure if area is too small.
    calculateTapArea(x, y, 1.5f, ((Area) mMeteringArea.get(0)).rect);
}

项目：WiCamera3D 文件：VideoSurfaceView2D.java

@Override
public void onFaceDetection(android.hardware.Camera.Face[] faces,
        Camera camera) {
    boolean isfacedet = StoredData.getBoolean(StoredData.M_FACETRACKING,
            false);
    // System.out.println("是否可以人脸识别：" + isfacedet);
    if (!isfacedet || (m_cameraIndex == m_camera_front)) {
        WiCameraActivity.m_fd_face.setVisibility(View.GONE);
        return;
    }
    if (m_isfacedetection) {
        WiCameraActivity.m_fd_face.setVisibility(View.VISIBLE);
        // TODO Auto-generated method stub
        // TODO Auto-generated method stub
        Rect[] rectarrayRects = new Rect[faces.length];

        for (int i = 0; i < faces.length; i++) {
            rectarrayRects[i] = faces[i].rect;
        }
        // TODO Auto-generated method stub
        boolean isneedfocus = isNeedFocus(oldRect, rectarrayRects);
        WiCameraActivity.m_fd_face.setFaces(faces);
        if (isneedfocus) {

            if ((mFocusArea != null)
                    && (FOCU_STATE == STATE_SUCCESS
                            || FOCU_STATE == STATE_FAIL || FOCU_STATE == STATE_FOCUSING)) {
                mFocusArea = null;
                mMeteringArea = null;
                cameras.cancelAutoFocus();
                FOCU_STATE = STATE_IDLE;
            }
            mFocusArea = new ArrayList<Camera.Area>();
            mMeteringArea = new ArrayList<Camera.Area>();
            if (cameras != null) {
                for (int i = 0; i < faces.length; i++) {
                    mFocusArea.add(new Area(faces[i].rect, 100));
                    mMeteringArea.add(new Area(faces[i].rect, 100));
                }
            }
            setArea();
        }
        oldRect = rectarrayRects;
    }
}

项目：WiCamera3D 文件：VideoSurfaceView.java

@Override
public void onFaceDetection(android.hardware.Camera.Face[] faces,
        Camera camera) {
    boolean isfacedet = StoredData.getBoolean(StoredData.M_FACETRACKING,
            false);
    // System.out.println("是否可以人脸识别：" + isfacedet);
    if (!isfacedet
            || (m_cameraIndex == m_camera_front
                    || Util.CAMERA_STATE == CAMERA_VIDEO
                    || WiCameraActivity.isContinus || (!WiCameraActivity.isCameraOpen))) {
        WiCameraActivity.m_fd_face.setVisibility(View.GONE);
        return;
    }
    if (m_isfacedetection) {
        WiCameraActivity.m_fd_face.setVisibility(View.VISIBLE);
        // if (FOCU_STATE == STATE_FOCUSING) {
        // WiCameraActivity.m_fd_face.setVisibility(View.GONE);
        // return;
        // }
        // TODO Auto-generated method stub
        // TODO Auto-generated method stub
        Rect[] rectarrayRects = new Rect[faces.length];

        for (int i = 0; i < faces.length; i++) {
            rectarrayRects[i] = faces[i].rect;
        }
        // TODO Auto-generated method stub
        boolean isneedfocus = isNeedFocus(oldRect, rectarrayRects);
        WiCameraActivity.m_fd_face.setFaces(faces);
        if (isneedfocus) {

            if ((mFocusArea != null)
                    && (FOCU_STATE == STATE_SUCCESS || FOCU_STATE == STATE_FAIL)) {
                mFocusArea = null;
                mMeteringArea = null;
                cameras.cancelAutoFocus();
                FOCU_STATE = STATE_IDLE;
            }
            mFocusArea = new ArrayList<Camera.Area>();
            mMeteringArea = new ArrayList<Camera.Area>();
            if (cameras != null) {
                for (int i = 0; i < faces.length; i++) {
                    mFocusArea.add(new Area(faces[i].rect, 100));
                    mMeteringArea.add(new Area(faces[i].rect, 100));
                }
            }
            // FOCU_STATE = STATE_FOCUSING;
            setArea();
        }
        oldRect = rectarrayRects;
    }
}

项目：Camera2 文件：FocusOverlayManager.java

public List<Area> getFocusAreas() {
    return mFocusArea;
}

项目：Camera2 文件：FocusOverlayManager.java

public List<Area> getMeteringAreas() {
    return mMeteringArea;
}