Fixing bug on line chart showLabel

@@ -67,6 +67,7 @@
     CGFloat yStep = (_yValueMax - _yValueMin) / _yLabelNum;
     CGFloat yStep = (_yValueMax - _yValueMin) / _yLabelNum;
     CGFloat yStepHeight = _chartCavanHeight / _yLabelNum;
     CGFloat yStepHeight = _chartCavanHeight / _yLabelNum;
 
 
+    if (_showLabel) {
 
 
         NSInteger index = 0;
         NSInteger index = 0;
         NSInteger num = _yLabelNum + 1;
         NSInteger num = _yLabelNum + 1;
@@ -80,6 +81,7 @@
             index += 1;
             index += 1;
             num -= 1;
             num -= 1;
         }
         }
+    }
 }
 }