Example usage for android.hardware Camera open

Introduction

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

Prototype

public static Camera open()

Source Link

Document

Creates a new Camera object to access the first back-facing camera on the device.

Usage

From source file:Main.java

/** A safe way to get an instance of the Camera object. */
public static Camera getCameraInstance() {
    Camera camera = null;//from w w  w.  j  av a2  s  . co m
    try {
        camera = Camera.open(); // attempt to get a Camera instance
    } catch (Exception e) {
        // Camera is not available (in use or does not exist)
    }
    return camera; // returns null if camera is unavailable
}

From source file:Main.java

public static Camera getCameraInstance() {
    Camera c = null;/*  ww  w . java 2s  .  com*/
    try {
        Log.d("debug", "Trying to open camera");
        c = Camera.open();
    } catch (Exception e) {
        // Camera is not available or doesn't exist
        Log.d("debug", "getCamera failed " + e.getMessage());
    }
    return c;
}

From source file:Main.java

@Nullable
public static Camera getCamera() {
    Camera camera = null;/*ww w.java2  s.  c  o  m*/
    try {
        camera = Camera.open();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return camera;
}

From source file:Main.java

public static Camera openFlightLight() {
    try {//from w  w  w. j ava2  s.com
        Camera camera = Camera.open();
        if (null != camera) {
            Parameters parameters = camera.getParameters();
            List<String> list = parameters.getSupportedFlashModes();
            for (String string : list) {
                if (Parameters.FLASH_MODE_TORCH.equals(string)) {
                    parameters.setFlashMode(string);
                    camera.setParameters(parameters);
                    camera.startPreview();
                    return camera;
                }
            }
        }
    } catch (Exception e) {
    }
    return null;
}

From source file:Main.java

/** A safe way to get an instance of the Camera object. */
public static Camera getCameraInstance() {
    Camera c = null;//from  ww  w .j  a  va2 s .co m
    try {
        c = Camera.open(); // attempt to get a Camera instance
    } catch (Exception e) {
        // Camera is not available (in use or does not exist)
        Log.e("ch.getCI", "Failed to get camera!", e);
    }
    return c; // returns null if camera is unavailable
}

From source file:Main.java

public static void open(Context context) {
    Camera cam = Camera.open();
    Camera.Parameters p = cam.getParameters();
    p.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
    cam.setParameters(p);//from   ww  w . j a va  2s . co  m
    cam.startPreview();

}

From source file:Main.java

/**
 * Return camera instance//from w  w w  .j a va2  s  .c om
 */
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 Camera getCameraInstance(Context context) {
    Camera c = null;// w  w  w.  j a  v a2s.c  om
    try {
        if (checkCameraHardware(context)) {
            c = Camera.open();
        }
    } catch (Exception e) {
        Toast.makeText(context, "Camera is not available", Toast.LENGTH_SHORT).show();
    }
    return c;
}

From source file:Main.java

/** Opens the camera with the given ID. If the Android API doesn't support multiple cameras (i.e. prior to Android 2.3),
 * always opens the primary camera.//from  www  .  j a  v  a 2s.  com
 */
public static Camera openCamera(int cameraId) {
    if (cameraId >= 0) {
        Method openMethod = null;
        try {
            openMethod = Camera.class.getMethod("open", int.class);
        } catch (Exception ex) {
            openMethod = null;
        }
        if (openMethod != null) {
            try {
                return (Camera) openMethod.invoke(null, cameraId);
            } catch (Exception ignored) {
            }
        }
    }
    return Camera.open();
}

From source file:Main.java

/**
 * @return the default camera on the device. Return null if there is no camera on the device.
 *//*from   w w w. j  av a 2 s  .c o m*/
public static Camera getDefaultCameraInstance() {
    return Camera.open();
}