Multiple quality improvements

Author: Mohammed Ezzat

library/src/main/java/cn/jeesoft/widget/pickerview/LoopView.java

@@ -270,7 +270,6 @@ protected void onDraw(Canvas canvas) {
                 }
                 k1++;
             }
-            k1 = (v - g) / 2;
             canvas.drawLine(0.0F, n, v, n, paintC);
             canvas.drawLine(0.0F, o, v, o, paintC);
             int j1 = 0;
@@ -287,7 +286,7 @@ protected void onDraw(Canvas canvas) {
 
                     String str = as[j1];
 
-                    int zoomTextSize = textSize;
+                    int zoomTextSize;
                     double zoom = ((double) textSize - str.length()*2) / textSize * 1.2;
                     zoomTextSize = (int) (textSize * zoom);
                     if (zoomTextSize < 10) {

library/src/main/java/cn/jeesoft/widget/pickerview/MWheelOptions.java

@@ -45,9 +45,9 @@ public void setPicker(List<String> options1Items,
     public void setPicker(List<String> options1Items,
                           List<List<String>> options2Items,
                           List<List<List<String>>> options3Items) {
-        this.mOptions1Items = (options1Items == null ? new ArrayList<String>() : options1Items);
-        this.mOptions2Items = (options2Items == null ? new ArrayList<List<String>>() : options2Items);
-        this.mOptions3Items = (options3Items == null ? new ArrayList<List<List<String>>>() : options3Items);
+        this.mOptions1Items = options1Items == null ? new ArrayList<String>() : options1Items;
+        this.mOptions2Items = options2Items == null ? new ArrayList<List<String>>() : options2Items;
+        this.mOptions3Items = options3Items == null ? new ArrayList<List<List<String>>>() : options3Items;
         // 选项1
         wv_option1 = (LoopView) view.findViewById(R.id.j_options1);
         wv_option1.setArrayList(mOptions1Items);// 设置显示数据