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Location Widget

Cristina Suciu edited this page Dec 23, 2020 · 1 revision

The Location Widget is a TextImageLeft type of Base Telemetry Widget. It shows the current geo location which is constituted of the latitude and longitude as reported by the drone. It updates the coordinates in real time and provides a precision up to 6 decimal places. The states of the widget are the following:

State Image
Disconnected or Location Unavailable
Location Available

Usage

If creating the location widget through code it can be added using the convenience method:

- (void)installInViewController:(nullable UIViewController *)viewController

which adds the widget the method is called on, as a subview of the ViewController, that is passed in as an argument. Following this, add constraints to the widget using its widgetSizeHint property to determine width, height and aspect ratio constraints.

If creating the widget through storyboard use the object library to drag a container view controller into the desired view controller like so:

Following this make sure to change the class of the child view controller to be DUXBetaLocationWidget. From here you can create the constraints on the container view using the Telemetry Panel Widget's widgetSizeHint property.

Customizations

The UI elements can be customized to match the style of the user's application. The widget supports all the Text Customizations provided in the Base Telemetry Widget.

State Image
Disconnected or Location Unavailable
Location Available

Swift Example

locationWidget.backgroundColor = UIColor.white
locationWidget.labelTextColor = UIColor.black
locationWidget.valueTextColor = UIColor.blue
locationWidget.unitTextColor = UIColor.blue
locationWidget.image = UIImage(named: "Location")

Objective-C Example

locationWidget.backgroundColor = [UIColor whiteColor];
locationWidget.labelTextColor = [UIColor blackColor];
locationWidget.valueTextColor = [UIColor blueColor];
locationWidget.unitTextColor = [UIColor blueColor];
locationWidget.image = [UIImage imageNamed: @"Location"];

Hooks

The widget provides hooks for the users to add functionality based on the state changes in the widget. The DUXBetaLocationWidget provides the following hooks:

  1. LocationModelState - Provides hooks in events received by the widget from the widget model.
    • public static func productConnected(_ isConnected: Bool) -> LocationModelState - Event when the product is connected or disconnected.
    • public static func locationStateUpdated(_ locationState: LocationState) -> LocationModelState - Event when the aircraft location is updated.
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