Example usage for android.hardware Camera setDisplayOrientation

Introduction

In this page you can find the example usage for android.hardware Camera setDisplayOrientation.

Prototype

public native final void setDisplayOrientation(int degrees);

Source Link

Document

Set the clockwise rotation of preview display in degrees.

Usage

From source file:Main.java

public static int setCameraDisplayOrientation(int cameraId, android.hardware.Camera camera,
        int displayRotation) {
    Camera.CameraInfo info = new Camera.CameraInfo();
    Camera.getCameraInfo(cameraId, info);
    int degrees = 0;
    switch (displayRotation) {
    case Surface.ROTATION_0:
        degrees = 0;//from  www  .ja  va 2s .c  om
        break;
    case Surface.ROTATION_90:
        degrees = 90;
        break;
    case Surface.ROTATION_180:
        degrees = 180;
        break;
    case Surface.ROTATION_270:
        degrees = 270;
        break;
    }

    int camRotationDegree = 0;
    if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
        camRotationDegree = (info.orientation + degrees) % 360;
        camRotationDegree = (360 - camRotationDegree) % 360; // compensate the mirror
    } else {
        camRotationDegree = (info.orientation - degrees + 360) % 360;
    }

    if (camera != null) {
        try {
            camera.setDisplayOrientation(camRotationDegree);
        } catch (RuntimeException e) {
            // java.lang.RuntimeException: set display orientation failed
            e.printStackTrace();
        }
    }
    return camRotationDegree;
}

---

From source file:Main.java

/**
 * Set Camera orientation to correct one
 * @param context app context// w w w  . j  a v a  2  s  .c om
 * @param camera camera to set orientation
 */
public static void setCameraDisplayOrientation(Context context, Camera camera) {
    if (camera == null) {
        return;
    }

    Camera.CameraInfo info = new Camera.CameraInfo();
    Camera.getCameraInfo(getCameraInformationId(), info);

    WindowManager winManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    int rotation = winManager.getDefaultDisplay().getRotation();

    int degrees = 0;

    switch (rotation) {
    case Surface.ROTATION_0:
        degrees = 0;
        break;
    case Surface.ROTATION_90:
        degrees = 90;
        break;
    case Surface.ROTATION_180:
        degrees = 180;
        break;
    case Surface.ROTATION_270:
        degrees = 270;
        break;
    }

    int result;
    if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
        result = (info.orientation + degrees) % 360;
        result = (360 - result) % 360; // compensate the mirror
    } else { // back-facing
        result = (info.orientation - degrees + 360) % 360;
    }
    camera.setDisplayOrientation(result);
}

---

From source file:org.artoolkit.ar.base.camera.CaptureCameraPreview.java

private void setCameraDisplayOrientation(int cameraId, android.hardware.Camera camera) {
    android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
    android.hardware.Camera.getCameraInfo(cameraId, info);

    WindowManager wMgr = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);

    int rotation = wMgr.getDefaultDisplay().getRotation();

    int degrees = 0;
    switch (rotation) {
    case Surface.ROTATION_0:
        degrees = 0;/*from   www  .j a v  a2  s  .co m*/
        break;
    case Surface.ROTATION_90:
        degrees = 90;
        break;
    case Surface.ROTATION_180:
        degrees = 180;
        break;
    case Surface.ROTATION_270:
        degrees = 270;
        break;
    }

    int result;
    if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
        result = (info.orientation + degrees) % 360;
        result = (360 - result) % 360; // compensate the mirror
    } else { // back-facing
        result = (info.orientation - degrees + 360) % 360;
    }
    camera.setDisplayOrientation(result);
}

---

From source file:com.jasompeter.openalpr.CameraActivity.java

public void setCorrectOrientation(Camera camera) {
    int displayRotation = getWindowManager().getDefaultDisplay().getRotation();

    int degrees = 0;
    switch (displayRotation) {
    case Surface.ROTATION_0:
        degrees = 0;/*from  w  w w.  j  av  a 2 s.c  o m*/
        break;
    case Surface.ROTATION_90:
        degrees = 90;
        break;
    case Surface.ROTATION_180:
        degrees = 180;
        break;
    case Surface.ROTATION_270:
        degrees = 270;
        break;
    }

    Camera.CameraInfo cameraInfo = getCurrentCameraInfo();
    int resultDegrees;
    if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
        resultDegrees = (cameraInfo.orientation + degrees) % 360;
        resultDegrees = (360 - resultDegrees) % 360;
    } else {
        resultDegrees = (cameraInfo.orientation - degrees + 360) % 360;
    }

    camera.setDisplayOrientation(resultDegrees);

    Camera.Parameters parameters = camera.getParameters();
    parameters.setRotation(resultDegrees);
    camera.setParameters(parameters);
}

---

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