Event Location in detail (2)

event.speed

សំរាប់ instantaneous speed របស់ GPS device នៅក្នុង meters per second វានឹងចែកជាលទ្ធផល 0.447 ក្នុងការដាក់ជា Miler Per Hour

សូមមើលកូដះ

local locationHandler = function( event )

    -- Check for error (user may have turned off Location Services)

    if event.errorCode then

        native.showAlert( "GPS Location Error", event.errorMessage, {"OK"} )

        print( "Location error: " .. tostring( event.errorMessage ) )

    else

        local latitudeText = string.format( '%.4f', event.latitude )

        currentLatitude = latitudeText

        latitude:setText( latitudeText )

        local longitudeText = string.format( '%.4f', event.longitude )

        currentLongitude = longitudeText

        longitude:setText( longitudeText )

        local altitudeText = string.format( '%.3f', event.altitude )

        altitude:setText( altitudeText )

        local accuracyText = string.format( '%.3f', event.accuracy )

        accuracy:setText( accuracyText )

        local speedText = string.format( '%.3f', event.speed )

        speed:setText( speedText )

        local directionText = string.format( '%.3f', event.direction )

        direction:setText( directionText )

        -- Note: event.time is a Unix-style timestamp, expressed in seconds since Jan. 1, 1970

        local timeText = string.format( '%.0f', event.time )

        time:setText( timeText )

    end

end

-- Activate location listener

Runtime:addEventListener( "location", locationHandler )

event.latitude

វាជា Latitude in degrees របស់ current GPS location

សូមមើលកូដះ

local locationHandler = function( event )

    -- Check for error (user may have turned off Location Services)

    if event.errorCode then

        native.showAlert( "GPS Location Error", event.errorMessage, {"OK"} )

        print( "Location error: " .. tostring( event.errorMessage ) )

    else

        local latitudeText = string.format( '%.4f', event.latitude )

        currentLatitude = latitudeText

        latitude:setText( latitudeText )

        local longitudeText = string.format( '%.4f', event.longitude )

        currentLongitude = longitudeText

        longitude:setText( longitudeText )

        local altitudeText = string.format( '%.3f', event.altitude )

        altitude:setText( altitudeText )

        local accuracyText = string.format( '%.3f', event.accuracy )

        accuracy:setText( accuracyText )

        local speedText = string.format( '%.3f', event.speed )

        speed:setText( speedText )

        local directionText = string.format( '%.3f', event.direction )

        direction:setText( directionText )

        -- Note: event.time is a Unix-style timestamp, expressed in seconds since Jan. 1, 1970

        local timeText = string.format( '%.0f', event.time )

        time:setText( timeText )

    end

end

-- Activate location listener

Runtime:addEventListener( "location", locationHandler )