fix:[修复bug:设置上下左右边框时，会有多余的空格]

描述：{
分析：在setLayerInset时，如果是需要显示的边框，也设置了指定的宽度，导致那个方位多了一个width的空白
方案：在setLayerInset时，如果是需要显示的边框，应该设置为0
}

Author: 张家伟

library/src/main/java/com/noober/background/BackgroundFactory.java

@@ -293,10 +293,10 @@ private static void setBackground(Drawable drawable, View view, TypedArray typed
             int bottom = 1 << 4;
             float width = typedArray.getDimension(R.styleable.background_bl_stroke_width, 0f);
             int position = typedArray.getInt(R.styleable.background_bl_stroke_position, 0);
-            float leftValue = hasStatus(position, left) ? width : -width;
-            float topValue = hasStatus(position, top) ? width : -width;
-            float rightValue = hasStatus(position, right) ? width : -width;
-            float bottomValue = hasStatus(position, bottom) ? width : -width;
+            float leftValue = hasStatus(position, left) ? 0 : -width;
+            float topValue = hasStatus(position, top) ? 0 : -width;
+            float rightValue = hasStatus(position, right) ? 0 : -width;
+            float bottomValue = hasStatus(position, bottom) ? 0 : -width;
             drawable = new LayerDrawable(new Drawable[]{drawable});
             ((LayerDrawable) drawable).setLayerInset(0, (int) leftValue, (int) topValue, (int) rightValue, (int) bottomValue);
         }

libraryx/src/main/java/com/noober/background/BackgroundFactory.java

@@ -296,10 +296,10 @@ private static void setBackground(Drawable drawable, View view, TypedArray typed
 			int bottom = 1 << 4;
 			float width = typedArray.getDimension(R.styleable.background_bl_stroke_width, 0f);
 			int position = typedArray.getInt(R.styleable.background_bl_stroke_position, 0);
-			float leftValue = hasStatus(position, left) ? width : -width;
-			float topValue = hasStatus(position, top) ? width : -width;
-			float rightValue = hasStatus(position, right) ? width : -width;
-			float bottomValue = hasStatus(position, bottom) ? width : -width;
+			float leftValue = hasStatus(position, left) ? 0 : -width;
+			float topValue = hasStatus(position, top) ? 0 : -width;
+			float rightValue = hasStatus(position, right) ? 0 : -width;
+			float bottomValue = hasStatus(position, bottom) ? 0 : -width;
 			drawable = new LayerDrawable(new Drawable[]{drawable});
 			((LayerDrawable) drawable).setLayerInset(0, (int) leftValue, (int) topValue, (int) rightValue, (int) bottomValue);
 		}