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Free Hand Drawing on Google Maps View.
This is kind of a Sample Code + Everything, for the Accompanying Blog Post
If you are planning to draw a polygon on the Map View, then here's how you should do it:
SARMapDrawView *mapDrawView = [[SARMapDrawView alloc]initWithFrame:self.view.bounds];
[mapDrawView enableDrawing];
mapDrawView.polygonDrawnBlock = ^(GMSPolygon *polygon_Drawn){
//Encoded Path of the Polygon
NSLog(@"polygon_Drawn.path.encodedPath: %@", polygon_Drawn.path.encodedPath);
[mapDrawView disableDrawing];
};
Here are the Instructions that needs to be followed to integrate "SARMapDrawView":
(i) Copy & Paste these Folders into your project: "SARMapDrawView", "Categories" & "Models".
(ii) Since, "SARMapDrawView" is just a subclass of UIView, just initialise and
place "SARMapDrawView" onto your View Controller
mapDrawView = [[SARMapDrawView alloc]initWithFrame:self.view.bounds];
or if your using storyboard then just add an UIView to your controller
and name its class name to "SARMapDrawView".
(iii) Now, when you are ready to draw your polygon on the map,
just call "enableDrawing" method on the view, like this:
[mapDrawView enableDrawing];
Now "SARMapDrawView" is in the Drawing mode, so if you just scribble
or draw any shape with your finger on the map, it will explicitly draw a Polygon,
by joining the Starting and the Ending point of your touch start & end respectively
and you will receive the drawn Polygon(GMSPolygon) object in the Block
Callback ("polygonDrawnBlock") [Only if you are listening to it].
- Saravanan
