Merge pull request #230 from sword-art/master

fix crash

android/src/main/java/com/beefe/picker/view/PickerViewLinkage.java

@@ -190,6 +190,8 @@ public class PickerViewLinkage extends LinearLayout {
             threeList.clear();
             threeList = arrayToList(sunArray);
             checkItems(loopViewThree, threeList);
+
+            if(threeList!=null&&threeList.size()>0){
                 returnData2.setItem(threeList.get(0));
                 returnData2.setIndex(loopViewThree.getSelectedIndex());
                 if (curSelectedList.size() > 2) {
@@ -197,6 +199,7 @@ public class PickerViewLinkage extends LinearLayout {
                 } else {
                     curSelectedList.add(2, returnData2);
                 }
+            }
 
             loopViewOne.setListener(new OnItemSelectedListener() {
                 @Override
@@ -230,14 +233,17 @@ public class PickerViewLinkage extends LinearLayout {
                     threeList = arrayToList(sunArray);
                     checkItems(loopViewThree, threeList);
                     returnData2 = new ReturnData();
+
+                    if (threeList!=null&&threeList.size()>0){
                         returnData2.setItem(threeList.get(0));
                         returnData2.setIndex(loopViewThree.getSelectedIndex());
                         curSelectedList.set(2, returnData2);
-
                         if (onSelectedListener != null) {
                             onSelectedListener.onSelected(curSelectedList);
                         }
                     }
+
+                }
             });
 
             loopViewTwo.setListener(new OnItemSelectedListener() {
@@ -264,12 +270,18 @@ public class PickerViewLinkage extends LinearLayout {
                     curSelectedList.set(1, returnData1);
 
                     returnData2 = new ReturnData();
+
+                    if (threeList!=null&&threeList.size()>0){
                         returnData2.setItem(threeList.get(0));
                         returnData2.setIndex(loopViewThree.getSelectedIndex());
                         curSelectedList.set(2, returnData2);
                         if (onSelectedListener != null) {
                             onSelectedListener.onSelected(curSelectedList);
                         }
+
+                    }
+
+
                 }
             });