diff --git a/src/gui/core/uieventsource.cc b/src/gui/core/uieventsource.cc
index 636a5b00..987b0876 100755
--- a/src/gui/core/uieventsource.cc
+++ b/src/gui/core/uieventsource.cc
@@ -40,9 +40,6 @@ int UIEventSource::handleRunnables(){
     if ( ((mFlags&1)==0) && mAttachedView && mAttachedView->isAttachedToWindow()){
         if(mAttachedView->isLayoutRequested())
             mLayoutRunner();
-        mRunnables.remove_if([](const RUNNER&r)->bool{
-            return r.removed;
-        });
         const nsecs_t nowms = SystemClock::uptimeMillis();
         //maybe user will removed runnable itself in its runnable'proc,so we use removed flag to flag it
         while(mRunnables.size() && ((mFlags&1)==0)){
diff --git a/src/gui/widgetEx/barcodeview.cc b/src/gui/widgetEx/barcodeview.cc
index c6e006f0..f7134cd1 100644
--- a/src/gui/widgetEx/barcodeview.cc
+++ b/src/gui/widgetEx/barcodeview.cc
@@ -148,7 +148,6 @@ int  BarcodeView::getBorderType()const{
 }
 
 int BarcodeView::getSymbology()const{
-    
     return mSymbol->symbology;
 }
 
@@ -158,7 +157,7 @@ void BarcodeView::setSymbology(int code){
     if(rc!=0){
 	mSymbology = code;
         mSymbol->symbology = code;
-        if(!mText.empty()) invalidate();
+        if(!mText.empty()) requestLayout();
     }
 }
 
@@ -206,7 +205,7 @@ bool BarcodeView::getSHRT()const{
 void  BarcodeView::setZoom(float zoom){
     mSymbol->scale = zoom;
     mZoom = zoom;
-    invalidate();
+    requestLayout();
 }
 
 float  BarcodeView::getZoom()const{