Remove 'and' from method name.

Objective-C coding conventions do not call for such conjunctions, AFAIK.

@@ -18,7 +18,9 @@
 /**
  * Callback method that gets invoked when the user taps on a chart line key point.
  */
-- (void)userClickedOnLineKeyPoint:(CGPoint)point lineIndex:(NSInteger)lineIndex andPointIndex:(NSInteger)pointIndex;
+- (void)userClickedOnLineKeyPoint:(CGPoint)point
+                        lineIndex:(NSInteger)lineIndex
+                       pointIndex:(NSInteger)pointIndex;
 
 /**
  * Callback method that gets invoked when the user taps on a chart bar.

@@ -216,7 +216,7 @@
             if (distance <= 10.0) {
                 [_delegate userClickedOnLineKeyPoint:touchPoint
                                            lineIndex:p
-                                       andPointIndex:(distance == distanceToP2 ? i + 1 : i)];
+                                          pointIndex:(distance == distanceToP2 ? i + 1 : i)];
 
                 return;
             }

@@ -149,7 +149,7 @@
     }
 }
 
-- (void)userClickedOnLineKeyPoint:(CGPoint)point lineIndex:(NSInteger)lineIndex andPointIndex:(NSInteger)pointIndex{
+- (void)userClickedOnLineKeyPoint:(CGPoint)point lineIndex:(NSInteger)lineIndex pointIndex:(NSInteger)pointIndex{
     NSLog(@"Click Key on line %f, %f line index is %d and point index is %d",point.x, point.y,(int)lineIndex, (int)pointIndex);
 }
 

@@ -135,7 +135,7 @@ lineChart.delegate = self;
 //For DelegateMethod
 
 
--(void)userClickedOnLineKeyPoint:(CGPoint)point lineIndex:(NSInteger)lineIndex andPointIndex:(NSInteger)pointIndex{
+-(void)userClickedOnLineKeyPoint:(CGPoint)point lineIndex:(NSInteger)lineIndex pointIndex:(NSInteger)pointIndex{
     NSLog(@"Click Key on line %f, %f line index is %d and point index is %d",point.x, point.y,(int)lineIndex, (int)pointIndex);
 }