android zxing landscape-portrait

Zxing Camera en modo retrato en Android



landscape-portrait (9)

Quiero mostrar orientación portrait en la cámara de Zxing .

¿Cómo puede hacerse esto?

Además de la modificación de @ roylee, tuve que aplicar lo siguiente a CameraConfigurationManager.java para obtener la mejor vista previa posible y la calidad de reconocimiento de códigos QR.

diff --git a/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java b/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java index cd9d0d8..4f12c8c 100644 --- a/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java +++ b/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java @@ -56,21 +56,24 @@ public final class CameraConfigurationManager { Display display = manager.getDefaultDisplay(); int width = display.getWidth(); int height = display.getHeight(); - // We''re landscape-only, and have apparently seen issues with display thinking it''s portrait + // We''re landscape-only, and have apparently seen issues with display thinking it''s portrait // when waking from sleep. If it''s not landscape, assume it''s mistaken and reverse them: + /* if (width < height) { Log.i(TAG, "Display reports portrait orientation; assuming this is incorrect"); int temp = width; width = height; height = temp; } + */ screenResolution = new Point(width, height); Log.i(TAG, "Screen resolution: " + screenResolution); - cameraResolution = findBestPreviewSizeValue(parameters, screenResolution, false); + cameraResolution = findBestPreviewSizeValue(parameters, screenResolution, true);// Log.i(TAG, "Camera resolution: " + cameraResolution); } void setDesiredCameraParameters(Camera camera) { + camera.setDisplayOrientation(90); Camera.Parameters parameters = camera.getParameters(); if (parameters == null) { @@ -99,7 +102,7 @@ public final class CameraConfigurationManager { Point getScreenResolution() { return screenResolution; } - + public void setFrontCamera(boolean newSetting) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); boolean currentSetting = prefs.getBoolean(PreferencesActivity.KEY_FRONT_CAMERA, false); @@ -109,12 +112,12 @@ public final class CameraConfigurationManager { editor.commit(); } } - + public boolean getFrontCamera() { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); return prefs.getBoolean(PreferencesActivity.KEY_FRONT_CAMERA, false); } - + public boolean getTorch() { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); return prefs.getBoolean(PreferencesActivity.KEY_FRONT_LIGHT, false); @@ -181,7 +184,14 @@ public final class CameraConfigurationManager { Camera.Size defaultSize = parameters.getPreviewSize(); bestSize = new Point(defaultSize.width, defaultSize.height); } + + // FIXME: test the bestSize == null case! + // swap width and height in portrait case back again + if (portrait) { + bestSize = new Point(bestSize.y, bestSize.x); + } return bestSize; + } private static String findSettableValue(Collection<String> supportedValues,

Agregar camera.setDisplayOrientation(90); en CameraConfigurationManager.java funcionó para mí.

Así es como funciona.

Paso 1: Agregue las siguientes líneas para rotar los datos antes de buildLuminanceSource(..) en la decodificación (byte [] data, int width, int height)

DecodeHandler.java:

byte[] rotatedData = new byte[data.length]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) rotatedData[x * height + height - y - 1] = data[x + y * width]; } int tmp = width; width = height; height = tmp; PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(rotatedData, width, height);

Paso 2: modifica getFramingRectInPreview() .

CameraManager.java

rect.left = rect.left * cameraResolution.y / screenResolution.x; rect.right = rect.right * cameraResolution.y / screenResolution.x; rect.top = rect.top * cameraResolution.x / screenResolution.y; rect.bottom = rect.bottom * cameraResolution.x / screenResolution.y;

Paso 3: deshabilite la comprobación del modo initFromCameraParameters(...) en initFromCameraParameters(...)

CameraConfigurationManager.java

//remove the following if (width < height) { Log.i(TAG, "Display reports portrait orientation; assuming this is incorrect"); int temp = width; width = height; height = temp; }

Paso 4: Agregue la siguiente línea para rotar la cámara en setDesiredCameraParameters(...)

CameraConfigurationManager.java

camera.setDisplayOrientation(90);

Paso 5: No olvides establecer la orientación de la actividad en vertical. Es decir: manifiesto

Cree AnyOrientationCaptureActivity y luego anule CaptureActivity por defecto, entonces funcionará.

public void scanCode() { IntentIntegrator integrator = new IntentIntegrator(this); integrator.setDesiredBarcodeFormats(CommonUtil.POSEIDON_CODE_TYPES); integrator.setPrompt("Scan"); integrator.setCameraId(0); integrator.setBeepEnabled(false); integrator.setBarcodeImageEnabled(false); integrator.setOrientationLocked(false); //Override here integrator.setCaptureActivity(AnyOrientationCaptureActivity.class); integrator.initiateScan(); } //create AnyOrientationCaptureActivity extend CaptureActivity public class AnyOrientationCaptureActivity extends CaptureActivity { }

Definir en manifiesto

<activity android:name=".views.AnyOrientationCaptureActivity" android:screenOrientation="fullSensor" android:stateNotNeeded="true" android:theme="@style/zxing_CaptureTheme" android:windowSoftInputMode="stateAlwaysHidden"></activity>

Creo que la mejor solución de biblioteca es esta ...

https://github.com/SudarAbisheck/ZXing-Orient

Puede incluirlo en build.gradle como una dependencia de su proyecto en formato maven ...

dependencies { compile ''''me.sudar:zxing-orient:2.1.1@aar'''' }

Para admitir toda la orientación y cambiar automáticamente al girar la actividad, haga lo siguiente, todo lo que tiene que modificar es la clase CameraManager.java .

Y elimine este método getCurrentOrientation () de CaptureActivity.java

En CameraManager.java Crea esta variable:

int resultOrientation;

Agregue esto al método openDriver (..):

setCameraDisplayOrientation(context, Camera.CameraInfo.CAMERA_FACING_BACK, theCamera);//this can be set after camera.setPreviewDisplay(); in api13+.

**** Crea este método **** Enlace: http://developer.android.com/reference/android/hardware/Camera.html

public static void setCameraDisplayOrientation(Context context,int cameraId, android.hardware.Camera camera) { android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); Display display = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay(); int degrees = 0; switch (display.getRotation()) { 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; } if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { resultOrientation = (info.orientation + degrees) % 360; resultOrientation = (360 - resultOrientation) % 360; // compensate the mirror } else { // back-facing resultOrientation = (info.orientation - degrees + 360) % 360; } camera.setDisplayOrientation(resultOrientation); }

**** Ahora modifica getFramingRectInPreview () ****

if(resultOrientation == 180 || resultOrientation == 0){//to work with landScape and reverse landScape rect.left = rect.left * cameraResolution.x / screenResolution.x; rect.right = rect.right * cameraResolution.x / screenResolution.x; rect.top = rect.top * cameraResolution.y / screenResolution.y; rect.bottom = rect.bottom * cameraResolution.y / screenResolution.y; }else{ rect.left = rect.left * cameraResolution.y / screenResolution.x; rect.right = rect.right * cameraResolution.y / screenResolution.x; rect.top = rect.top * cameraResolution.x / screenResolution.y; rect.bottom = rect.bottom * cameraResolution.x / screenResolution.y; }

Y modifique este método público PlanarYUVLuminanceSource buildLuminanceSource (..)

if(resultOrientation == 180 || resultOrientation == 0){//TODO: This is to use camera in landScape mode // Go ahead and assume it''s YUV rather than die. return new PlanarYUVLuminanceSource(data, width, height, rect.left, rect.top, rect.width(), rect.height(), false); }else{ byte[] rotatedData = new byte[data.length]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) rotatedData[x * height + height - y - 1] = data[x + y * width]; } int tmp = width; width = height; height = tmp; return new PlanarYUVLuminanceSource(rotatedData, width, height, rect.left, rect.top, rect.width(), rect.height(), false); }