Take Picture without preview Android

I would like to take a picture without any preview. I used this code but I’m getting an error:

 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Camera.Parameters parameters = camera.getParameters();
    parameters.setPictureFormat(PixelFormat.JPEG);
    camera.setParameters(parameters);
    SurfaceView mview = new SurfaceView(getBaseContext());
    try {
        camera.setPreviewDisplay(mview.getHolder());
        camera.startPreview();
        camera.takePicture(null,null,photoCallback);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }




}

 Camera.PictureCallback photoCallback=new Camera.PictureCallback() {
    public void onPictureTaken(byte[] data, Camera camera) {

        Uri uriTarget = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, new ContentValues());
        OutputStream imageFileOS;

        try {

            imageFileOS = getContentResolver().openOutputStream(uriTarget);
            imageFileOS.write(data);
            imageFileOS.flush();
            imageFileOS.close();

            Toast.makeText(AndroidTestJNIActivity.this, "Image saved: " + uriTarget.toString(), Toast.LENGTH_LONG).show();

        } catch (FileNotFoundException e) {
            e.printStackTrace();

        } catch (IOException e) {
            e.printStackTrace();

        }
        finish();

    }
};

I get a NullPointerException when I try to access camera. I don’t know how to initialize it. I think the problem is that camera is never initialized.

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  •  05-29 14:40:20.330: E/AndroidRuntime(15571): FATAL EXCEPTION: main
     05-29 14:40:20.330: E/AndroidRuntime(15571): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.achillessecurity.androidtestjni/com.achillessecurity.androidtestjni.AndroidTestJNIActivity}: java.lang.RuntimeException: Fail to connect to camera service
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1768)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
    05-29 14:40:20.330: E/AndroidRuntime(15571):    at android.app.ActivityThread.access$1500(ActivityThread.java:123)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.os.Handler.dispatchMessage(Handler.java:99)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.os.Looper.loop(Looper.java:130)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.app.ActivityThread.main(ActivityThread.java:3835)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at java.lang.reflect.Method.invokeNative(Native Method)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at java.lang.reflect.Method.invoke(Method.java:507)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at dalvik.system.NativeStart.main(Native Method)
     05-29 14:40:20.330: E/AndroidRuntime(15571): Caused by: java.lang.RuntimeException: Fail to connect to camera service
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.hardware.Camera.native_setup(Native Method)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.hardware.Camera.<init>(Camera.java:258)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.hardware.Camera.open(Camera.java:235)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at com.achillessecurity.androidtestjni.AndroidTestJNIActivity.onCreate(AndroidTestJNIActivity.java:42)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
     05-29 14:40:20.330: E/AndroidRuntime(15571):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
    

    I initialize camera by:
    camera= Camera.open();

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  • 3 Solutions collect form web for “Take Picture without preview Android”

    Use this permissions :

     <uses-permission android:name="android.permission.CAMERA" />
     <uses-feature android:name="android.hardware.camera" />
    

    And you can instantiate a Camera object using this

    Camera mycamera = Camera.open();
    

    You can try the method described here is very simple if you are into simplicity:

    http://developer.android.com/training/camera/photobasics.html

    Android can’t use camera without a preview… but, you can set the preview size like 1×1 px, then you won’t see it and you can use the camera anyway.

    Regarding your Fail to initialize camera error, another possibility is the camera is in use by something else.

    Android Babe is a Google Android Fan, All about Android Phones, Android Wear, Android Dev and Android Games Apps and so on.