暴露ViewfinderView中的labelText相关属性，支持代码修改labelText相关属性。

README.md

@@ -36,17 +36,17 @@ ZXingLite for Android 是ZXing的精简版，优化扫码和生成二维码功
 <dependency>
   <groupId>com.king.zxing</groupId>
   <artifactId>zxing-lite</artifactId>
-  <version>1.0.2</version>
+  <version>1.0.3</version>
   <type>pom</type>
 </dependency>
 ```
 ### Gradle:
 ```gradle
-implementation 'com.king.zxing:zxing-lite:1.0.2'
+implementation 'com.king.zxing:zxing-lite:1.0.3'
 ```
 ### Lvy:
 ```lvy
-<dependency org='com.king.zxing' name='zxing-lite' rev='1.0.2'>
+<dependency org='com.king.zxing' name='zxing-lite' rev='1.0.3'>
   <artifact name='$AID' ext='pom'></artifact>
 </dependency>
 ```
@@ -84,6 +84,9 @@ api 'com.google.zxing:core:3.3.3'
 
 代码示例 （二维码/条形码）
 ```Java
+    //跳转的默认扫码界面
+    startActivityForResult(new Intent(context,CaptureActivity.class),requestCode);
+
     //生成二维码
     CodeUtils.createQRCode(content,600,logo);
     //生成条形码

lib/src/main/java/com/king/zxing/ViewfinderView.java

@@ -28,6 +28,7 @@ import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.Shader;
+import android.support.annotation.ColorRes;
 import android.support.v4.content.ContextCompat;
 import android.text.Layout;
 import android.text.StaticLayout;
@@ -81,10 +82,10 @@ public final class ViewfinderView extends View {
     //扫描区域提示文本
     private String labelText;
     //扫描区域提示文本颜色
-    private final int labelTextColor;
-    private final float labelTextSize;
-    public static int scannerStart = 0;
-    public static int scannerEnd = 0;
+    private int labelTextColor;
+    private float labelTextSize;
+    public int scannerStart = 0;
+    public int scannerEnd = 0;
     private boolean isShowResultPoint;
 
     private List<ResultPoint> possibleResultPoints;
@@ -142,6 +143,22 @@ public final class ViewfinderView extends View {
         this.cameraManager = cameraManager;
     }
 
+    public void setLabelText(String labelText) {
+        this.labelText = labelText;
+    }
+
+    public void setLabelTextColor(int color) {
+        this.labelTextColor = color;
+    }
+
+    public void setLabelTextColorResource(@ColorRes int id){
+        this.labelTextColor = ContextCompat.getColor(getContext(),id);
+    }
+
+    public void setLabelTextSize(float textSize) {
+        this.labelTextSize = textSize;
+    }
+
     @SuppressLint("DrawAllocation")
     @Override
     public void onDraw(Canvas canvas) {

lib/src/main/java/com/king/zxing/camera/CameraManager.java

@@ -58,6 +58,7 @@ public final class CameraManager {
     private int requestedCameraId = OpenCameraInterface.NO_REQUESTED_CAMERA;
     private int requestedFramingRectWidth;
     private int requestedFramingRectHeight;
+
     /**
      * Preview frames are delivered here, which we pass on to the registered handler. Make sure to
      * clear the handler so it will only receive one message.
@@ -229,9 +230,11 @@ public final class CameraManager {
             int width = findDesiredDimensionInRange(screenResolution.x, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
             int height = findDesiredDimensionInRange(screenResolution.y, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
 
-            int leftOffset = (screenResolution.x - width) / 2;
-            int topOffset = (screenResolution.y - height) / 2;
-            framingRect = new Rect(leftOffset, topOffset, leftOffset + width, topOffset + height);
+            int size = Math.min(width,height);
+
+            int leftOffset = (screenResolution.x - size) / 2;
+            int topOffset = (screenResolution.y - size) / 2;
+            framingRect = new Rect(leftOffset, topOffset, leftOffset + size, topOffset + size);
             Log.d(TAG, "Calculated framing rect: " + framingRect);
         }
         return framingRect;
@@ -334,9 +337,12 @@ public final class CameraManager {
         if (rect == null) {
             return null;
         }
+        int size = Math.min(width,height);
+        int left = (width-size)/2;
+        int top = (height-size)/2;
         // Go ahead and assume it's YUV rather than die.
-        return new PlanarYUVLuminanceSource(data, width, height, 0, 0,
-                width, height, false);
+        return new PlanarYUVLuminanceSource(data, width, height, left, top,
+                left + size, top + size, false);
     }
 
 }

versions.gradle

@@ -1,7 +1,7 @@
 //App 
 def app_version = [:]
-app_version.versionCode = 3
-app_version.versionName = "1.0.2"
+app_version.versionCode = 4
+app_version.versionName = "1.0.3"
 ext.app_version = app_version
 
 //build version