Example usage for android.hardware Camera getNumberOfCameras

Introduction

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

Prototype

public native static int getNumberOfCameras();

Source Link

Document

Returns the number of physical cameras available on this device.

Usage

From source file:Main.java

public static Camera.CameraInfo[] getCameraArray(Context context) {
    Camera.CameraInfo[] cameraArray = null;

    if (isCameraPresent(context)) {
        int numCameras = Camera.getNumberOfCameras();
        if (numCameras > 0) {
            cameraArray = new Camera.CameraInfo[numCameras];
            for (int ii = 0; ii < numCameras; ++ii) {
                cameraArray[ii] = new Camera.CameraInfo();
                Camera.getCameraInfo(ii, cameraArray[ii]);
            }/*w  ww  . j ava  2 s.  c om*/
        }
    }

    return cameraArray;
}

From source file:Main.java

private static Camera.CameraInfo getCameraInfo() {
    Camera.CameraInfo info = new Camera.CameraInfo();
    for (int i = 0; i < Camera.getNumberOfCameras(); i++) {
        Camera.getCameraInfo(i, info);//  w w w  . j  av a 2  s  .c  o m
        if (info.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {
            break;
        }
    }
    return info;
}

From source file:Main.java

/**
 * @return a mapping of all camera ids to matching camera info
 *//* ww  w . j a v a 2s  .co  m*/
public static Map<Integer, Camera.CameraInfo> getCameras() {
    Map<Integer, Camera.CameraInfo> cameraMap = new HashMap<Integer, Camera.CameraInfo>();

    int numberOfCameras = Camera.getNumberOfCameras();
    Camera.CameraInfo cameraInfo = null;

    for (int i = 0; i < numberOfCameras; i++) {
        cameraInfo = new Camera.CameraInfo();

        Camera.getCameraInfo(i, cameraInfo);

        cameraMap.put(i, cameraInfo);
    }

    return cameraMap;
}

From source file:Main.java

/**
 * Checks whether this device support a front camera.
 * @return true if this device support a front camera, false otherwise
 *///w  ww  . j  av a2  s  .co m
public static boolean hasFrontFacingDevice() {
    for (int i = 0; i < Camera.getNumberOfCameras(); ++i) {
        Camera.CameraInfo info = new Camera.CameraInfo();
        try {
            Camera.getCameraInfo(i, info);
            if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
                return true;
            }
        } catch (Exception e) {
            // do nothing.
        }
    }
    return false;
}

From source file:Main.java

/**
 * Get camera id of specified camera face
 * @param cameraFace must be one of {@link CameraInfo#CAMERA_FACING_FRONT}
 *                   and {@link CameraInfo#CAMERA_FACING_BACK}
 * @return the camera id//  w w  w  .  java2 s.c  om
 */
public static int getCameraId(int cameraFace) {
    int cameraId = 0;
    int numberOfCameras = Camera.getNumberOfCameras();
    CameraInfo cameraInfo = new CameraInfo();
    for (int i = 0; i < numberOfCameras; i++) {
        Camera.getCameraInfo(i, cameraInfo);
        if (cameraInfo.facing == cameraFace) {
            cameraId = i;
            break;
        }
    }
    return cameraId;
}

From source file:Main.java

/**
 * Return camera instance/*from  w  w  w .  j  a  v  a2 s.  com*/
 */
public static Camera getCameraInstance(int displayOrientation) {
    Camera cam = null;
    try {
        cam = Camera.open();

        // More efficient way to find available cameras. Nexus 7 needs this.
        if (cam == null) {
            int availableCameras = Camera.getNumberOfCameras();
            for (int i = 0; i < availableCameras; i++) {
                cam = Camera.open(i);
                if (cam != null)
                    break;
            }
        }

        cam.setDisplayOrientation(displayOrientation);
        Log.d(TAG, "Getting Camera: " + cam.toString());
    } catch (Exception e) {
        Log.e(TAG, "Camera is not available (in use or does not exist)");
        Log.e(TAG, e.toString());
    }
    return cam;
}

From source file:Main.java

public static int getAvailableCamerasCount() {
    return Camera.getNumberOfCameras();
}

From source file:Main.java

public static int getCameraNumber() {
    if (cameraNumber == -1) {
        cameraNumber = Camera.getNumberOfCameras();
    }// w ww  .  ja va  2  s.c om
    return cameraNumber;
}

From source file:Main.java

public static boolean areBothCamerasSupported() {

    return (Camera.getNumberOfCameras() > 1);

}

From source file:Main.java

public static boolean isCameraSupported(int cameraId) {
    return (Camera.getNumberOfCameras() > cameraId);
}