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There's more about event handling later in this tutorial. Call Polyline. The code below defines an arbitrary tag A indicating a type of polyline.
Retrieve the data using Polyline. You can specify various styling properties in the PolylineOptions object. Styling options include the stroke color, stroke width, stroke pattern, joint types, and start and end caps. If you don't specify a particular property, the API uses a default for that property.
The following code applies a round cap to the end of the line, and a different start cap depending on the polyline's type , where the type is an arbitrary property stored in the data object for the polyline. The sample also specifies a stroke width, stroke color, and joint type:. The above code specifies a custom bitmap for the start cap of the type A polyline, and specifies a reference stroke width of 10 pixels. The API scales the bitmap based on the reference stroke width. When specifying the reference stroke width, supply the width that you used when designing the bitmap image, at the original dimension of the image.
Read more about line caps and other options for customizing shapes. Make the polyline clickable by calling Polyline. By default, polylines are not clickable and your app will not receive a notification when the user taps a polyline.
Override the onPolylineClick callback method. The following example alternates the stroke pattern of the line between solid and dotted, each time the user clicks the polyline:. A Polygon is a shape consisting of a series of coordinates in an ordered sequence, similar to a Polyline. The difference is that polygon defines a closed area with a fillable interior, while a polyline is open ended.
Create a PolygonOptions object and add points to it. The code sample below creates a polygon with 4 points. Make the polygon clickable by calling Polygon. By default, polygons are not clickable and your app will not receive a notification when the user taps a polygon. Handling polygon click events is similar to handling the events on polylines, described earlier in this tutorial.
Call Polygon. The code below defines an arbitrary type alpha for the polygon. You can specify a number of styling properties in the PolygonOptions object. Search and find the location you want to download. Type the location into the search, and select it from the results below the search bar. Maps will take you to the selected location, and drop a red location pin on it. This will allow you to select an area on the map, and download it for offline use. Location details and your options will slide in from the bottom of your screen.
This button is in the upper-right corner of your screen. It will open a drop-down menu. Tap Download offline map on the menu. This will prompt you to select the area you want to download on the map. Use two fingers to adjust the area in the box. Make sure the entire area you want to download is included in the blue box on the map.
Spread with two fingers on your screen to zoom in, or pinch in to zoom out. It's in the lower-right corner of your screen. To start, tap the hamburger icon in the top-left corner of Google Maps, then choose "Offline maps" Android or "Offline areas" iPhone.
From here, select the downloaded map area, then press "Update" on the following screen. Once you've done that, you'll have offline access to this map area for another month.
Please remember that some important traffic data, like construction zones and accidents, will not be available when using offline maps. While it does serve as a great backup in case you run into areas with poor cellular service, it should really only used during those times. This article was produced during Gadget Hacks' special coverage on traveling with your smartphone. Check out the whole Travel series. Get a lifetime subscription to VPN Unlimited for all your devices with a one-time purchase from the new Gadget Hacks Shop , and watch Hulu or Netflix without regional restrictions, increase security when browsing on public networks, and more.
It just doesn't work with all that offline map data you have. The size of your offline map data will depend on where you live. For example, the offline map data size for Vatican City comes in at just 51MB. You might as well keep that on your phone storage since it's not much. On the flip side, the state of California needs You're probably going to want to put that on your SD card if you're hurting for space, so let's do it.
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