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Android上人像模式下的Zxing摄像头

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Android上人像模式下的Zxing摄像头,android,zxing,landscape-portrait,Android,Zxing,Landscape Portrait,我想在Zxing的相机上显示肖像方向 如何做到这一点？以下是它的工作原理 步骤1：在解码（字节[]数据，整数宽度，整数高度）中的buildLuminanceSource（..）之前添加以下行以旋转数据 DecodeHandler.java: byte[] rotatedData = new byte[data.length]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++)

我想在
Zxing
的相机上显示
肖像
方向

如何做到这一点？

以下是它的工作原理

步骤1：在解码（字节[]数据，整数宽度，整数高度）中的
buildLuminanceSource（..）
之前添加以下行以旋转数据

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);
步骤3：在
initFromCameraParameters（…）中禁用横向模式检查

CameraConfigurationManager.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;



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



camera.setDisplayOrientation(90);




第5步：不要忘记将活动方向设置为纵向。例如：清单
它是如何工作的

步骤1：在解码（字节[]数据，整数宽度，整数高度）中的
buildLuminanceSource（..）
之前添加以下行以旋转数据

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);




步骤3：在
initFromCameraParameters（…）中禁用横向模式检查

CameraConfigurationManager.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;



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



camera.setDisplayOrientation(90);





第5步：不要忘记将活动方向设置为纵向。例如：manifest
您可以使用我的zxlib分叉。我只禁用了横向模式。您可以设置横向/纵向，并查看正确的相机视图。
您可以使用我的zxlib叉子。我只禁用了横向模式。您可以设置横向/纵向并查看正确的相机视图。
这应该是与上述解决方案同步的版本


这应该是与上述解决方案同步的版本


要支持旋转活动时的所有方向和自动更改，只需修改CameraManager.java类即可

并从CaptureActivity.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;



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



camera.setDisplayOrientation(90);


在CameraManager.java中创建此变量：


int resultOrientation;



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


将此添加到openDriver（..）方法：


int resultOrientation;



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


****创建此方法****
链接：

****现在修改getFramingRectInPreview（）****

并修改此方法公共平面UV亮度源建筑亮度源（..）


if（resultOrientation==180 | | resultOrientation==0）{//TODO:这是在横向模式下使用相机
//去吧，假设是你，而不是死。
返回新的平面UV亮度源（数据、宽度、高度、rect.left、rect.top、rect.width（）、rect.height（）、false）；
}否则{
byte[]rotatedData=新字节[data.length]；
对于（int y=0；y
要支持旋转活动时的所有方向和自动更改，只需修改CameraManager.java类即可

并从CaptureActivity.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;



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



camera.setDisplayOrientation(90);


在CameraManager.java中创建此变量：


int resultOrientation;



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


将此添加到openDriver（..）方法：


int resultOrientation;



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


****创建此方法****
链接：

****现在修改getFramingRectInPreview（）****

并修改此方法公共平面UV亮度源建筑亮度源（..）


if（resultOrientation==180 | | resultOrientation==0）{//TODO:这是在横向模式下使用相机
//去吧，假设是你，而不是死。
返回新的平面UV亮度源（数据、宽度、高度、rect.left、rect.top、rect.width（）、rect.height（）、false）；
}否则{
byte[]rotatedData=新字节[data.length]；
对于（int y=0；y
对于zxing 3.0，工作库
用于纵向模式


感谢您
为zxing 3.0提供的工作库
用于纵向模式


感谢您添加
camera.setDisplayOrientation（90）CameraConfigurationManager.java中的code>为我工作。
添加
camera.setDisplayOrientation（90）我认为最好的只使用库的解决方案是这个



您可以将其作为项目的依赖项以maven格式包含在build.gradle中


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



我认为最好的图书馆唯一的解决方案是这个



您可以将其作为项目的依赖项以maven格式包含在build.gradle中


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



除了@roylee的修改，我还必须将以下内容应用于
CameraConfiguration Manager.java
，以获得最佳的预览和二维码识别质量


    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,



diff--git a/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java b/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java
索引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 CameraConfiguration Manager{
Display Display=manager.getDefaultDisplay（）；
int width=display.getWidth（）；
int height=display.getHeight（）；
-//我们只是一个风景画，而且很明显，我们看到了一些问题，认为这是一幅肖像画
+//我们只是一个风景画，而且很明显，我们已经看到了显示器的问题，认为它是p