スピードメーターのアラートを設定する
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ナビゲーションが有効で、移動手段が運転に設定されている場合、Navigation SDK for iOS は、地図の左下隅に現在の制限速度を示す制限速度コントロールを表示します。ドライバーが制限速度を超えると、コントロールが展開され、制限速度の横にスピードメーターが表示されます。速度が特定のしきい値に達すると、アラートがトリガーされます。
デフォルトでは、Navigation SDK は、ドライバーが制限速度を 5 mph(または 10 km/h)超過すると、軽微な速度アラートをトリガーし、速度計のテキストの色を赤に変更します。ドライバーが制限速度を時速 16 km(時速 10 マイル)超過すると、重大な速度アラートがトリガーされ、スピードメーターの背景色が赤に変わります。
アラートをトリガーするしきい値と、スピードメーターに表示されるテキストと背景色をカスタマイズできます。Navigation SDK を使用して、ドライバーの速度情報を利用できるようにすることもできます。たとえば、ライドシェア事業者に速度情報を提供して、運転手に制限速度の遵守を促し、安全性を高めることができます。
速度アラートのしきい値をカスタマイズする
軽微な速度アラートと重大な速度アラートの両方について、現在の速度の制限速度を超える割合として速度アラートのしきい値をカスタマイズできます。地図にアラートが表示されるまでのしきい値の超過時間を指定することもできます。
次のコード例では、軽微な速度アラートのしきい値を制限速度の 5% 超、重大な速度アラートのしきい値を制限速度の 10% 超に設定しています。これは、アラートのしきい値が 5 秒を超えた後に、地図にアラートを表示することを指定します。
Swift
let minorSpeedAlertThresholdPercentage: CGFloat = 0.05 let
majorSpeedAlertThresholdPercentage: CGFloat = 0.1 let
severityUpgradeDurationSeconds: TimeInterval = 5
// Configure SpeedAlertOptions let mutableSpeedAlertOptions:
GMSNavigationMutableSpeedAlertOptions = GMSNavigationMutableSpeedAlertOptions()
mutableSpeedAlertOptions.setSpeedAlertThresholdPercentage(minorSpeedAlertThresholdPercentage,
for: .minor)
mutableSpeedAlertOptions.setSpeedAlertThresholdPercentage(majorSpeedAlertThresholdPercentage,
for: .major) mutableSpeedAlertOptions.severityUpgradeDurationSeconds =
severityUpgradeDurationSeconds
// Set SpeedAlertOptions to Navigator. mapView.navigator?.speedAlertOptions =
mutableSpeedAlertOptions; mapView.navigator?.add(self); // Only needed if
listening to the delegate events.
Objective-C
static const CGFloat minorSpeedAlertThresholdPercentage = 0.05; static const
CGFloat majorSpeedAlertThresholdPercentage = 0.1; static const NSTimeInterval
severityUpgradeDurationSeconds = 5;
// Configure SpeedAlertOptions GMSNavigationMutableSpeedAlertOptions
*mutableSpeedAlertOptions = [[GMSNavigationMutableSpeedAlertOptions alloc]
init]; [mutableSpeedAlertOptions setSpeedAlertThresholdPercentage:
minorSpeedAlertThresholdPercentage
forSpeedAlertSeverity:GMSNavigationSpeedAlertSeverityMinor];
[mutableSpeedAlertOptions
setSpeedAlertThresholdPercentage:majorSpeedAlertThresholdPercentage
forSpeedAlertSeverity:GMSNavigationSpeedAlertSeverityMajor];
[mutableSpeedAlertOptions
setSeverityUpgradeDurationSeconds:severityUpgradeDurationSeconds];
// Set SpeedAlertOptions to Navigator. mapView.navigator.speedAlertOptions =
mutableSpeedAlertOptions; [mapView.navigator addListener:self]; // Only needed
if listening to the delegate events.
スピードメーターで速度アラートを表示する方法をカスタマイズする
アラート レベルごとにスピードメーターの表示色をカスタマイズできます。
次の表に、GMSNavigationSpeedometerUIOptions
クラスの速度アラートのデフォルトの色を示します。
要素 | 色 |
MinorSpeedAlertBackgroundColorDayMode |
0xffffff(白) |
MinorSpeedAlertBackgroundColorNightMode |
0x000000 |
MinorSpeedAlertTextColorDayMode |
0xd93025 |
MinorSpeedAlertTextColorNightMode |
0xd93025 |
MajorSpeedAlertBackgroundColorDayMode |
0xd93025 |
MajorSpeedAlertBackgroundColorNightMode |
0xd93025 |
MajorSpeedAlertTextColorDayMode |
0xffffff(白) |
MajorSpeedAlertTextColorNightMode |
0xffffff(白) |
軽微な速度アラートと重大な速度アラートの両方について、スピードメーターのテキストと背景色を指定できます。
Swift
let mutableSpeedometerUIOptions: GMSNavigationMutableSpeedometerUIOptions =
GMSNavigationMutableSpeedometerUIOptions()
mutableSpeedometerUIOptions.setTextColor(minorSpeedAlertTextColor, for: .minor,
lightingMode: .normal)
mutableSpeedometerUIOptions.setTextColor(majorSpeedAlertTextColor, for: .major,
lightingMode: .normal)
mutableSpeedometerUIOptions.setBackgroundColor(minorSpeedAlertNightModeBackgroundColor,
for: .minor, lightingMode: .lowLight)
mutableSpeedometerUIOptions.setBackgroundColor(majorSpeedAlertDayModeBackgroundColor,
for: .major, lightingMode: .normal)
mapView.settings.speedometerUIOptions = mutableSpeedometerUIOptions
Objective-C
GMSNavigationMutableSpeedometerUIOptions *mutableSpeedometerUIOptions =
[[GMSNavigationMutableSpeedometerUIOptions alloc] init];
[mutableSpeedometerUIOptions setTextColor: minorSpeedAlertTextColor
forSpeedAlertSeverity: GMSNavigationSpeedAlertSeverityMinor lightingMode:
GMSNavigationLightingModeNormal]; [mutableSpeedometerUIOptions setTextColor:
majorSpeedAlertTextColor forSpeedAlertSeverity:
GMSNavigationSpeedAlertSeverityMajor lightingMode:
GMSNavigationLightingModeNormal]; [mutableSpeedometerUIOptions
setBackgroundColor: minorSpeedAlertNightModeBackgroundColor
forSpeedAlertSeverity: GMSNavigationSpeedAlertSeverityMinor lightingMode:
GMSNavigationLightingModeLowLight]; [mutableSpeedometerUIOptions
setBackgroundColor: majorSpeedAlertDayModeBackgroundColor forSpeedAlertSeverity:
GMSNavigationSpeedAlertSeverityMajor
lightingMode:GMSNavigationLightingModeNormal];
mapView.settings.speedometerUIOptions = mutableSpeedometerUIOptions;
アプリでドライバーの速度に関する情報を共有する必要がある場合は、Navigation SDK を使用してドライバーの速度情報を利用できるようにすることもできます。これは、オペレーターがドライバーの過剰なスピード違反を監視して安全性を向上させたいライドシェア アプリケーションで役立ちます。
たとえば、次の例では、速度が制限速度の指定された割合を超えた場合に速度情報を共有します。
Swift
// Listener method for sharing speed information when the speed exceeds the
speed limit by a specified percentage. #pragma mark GMSNavigatorListener func
navigator(_ navigator : GMSNavigator, didUpdateSpeedingPercentage
percentageAboveLimit : Float) { ... }
Objective-C
// Listener method listening to speeding feed. #pragma mark
GMSNavigatorListener - (void)navigator:(GMSNavigator *)navigator
didUpdateSpeedingPercentage:(float)percentageAboveLimit { ... }
特に記載のない限り、このページのコンテンツはクリエイティブ・コモンズの表示 4.0 ライセンスにより使用許諾されます。コードサンプルは Apache 2.0 ライセンスにより使用許諾されます。詳しくは、Google Developers サイトのポリシーをご覧ください。Java は Oracle および関連会社の登録商標です。
最終更新日 2025-09-04 UTC。
[null,null,["最終更新日 2025-09-04 UTC。"],[[["\u003cp\u003eWhen navigation is in driving mode, the Navigation SDK displays the current speed limit and driver's speed, providing visual and configurable speed alerts.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can customize the thresholds for minor and major speed alerts, including the percentage over the speed limit and duration before triggering.\u003c/p\u003e\n"],["\u003cp\u003eThe speedometer's text and background colors can be customized for day and night modes, allowing for clear visual distinction of speed alert levels.\u003c/p\u003e\n"],["\u003cp\u003eThe Navigation SDK enables access to the driver's speed information, which can be used for purposes like monitoring driver behavior in rideshare applications.\u003c/p\u003e\n"]]],["The Navigation SDK for iOS displays a speed limit and speedometer when driving. Speed alerts are triggered when the driver exceeds the limit. Minor alerts occur at 5 mph (or 10 kph) over, turning the text red. Major alerts occur at 10 mph (or 20 kph) over, turning the background red. Alert thresholds and colors are customizable, including percentages over the limit and time before the alert. The SDK also provides driver speed data for monitoring purposes, such as in rideshare apps.\n"],null,["# Configure speedometer alerts\n\nWhen navigation is enabled and the travel mode is set to driving, the Navigation\nSDK for iOS displays a speed limit control in the lower left corner of the map\nthat shows the current speed limit. If a driver exceeds the speed limit, the\ncontrol expands to display a speedometer next to the speed limit display and\ntriggers alerts when the speed reaches a certain threshold.\n\nBy default, the Navigation SDK triggers a minor speed alert when the driver\nexceeds the speed limit by 5 mph (or 10 kph), and changes the color of the\nspeedometer text to red. It triggers a major speed alert when the driver exceeds\nthe speed limit by 10 mph (or 20 kph), and changes the speedometer background\ncolor to red. \n\nYou can customize both the threshold for triggering the alerts and the text and\nbackground colors the speedometer displays. You can also use the Navigation SDK\nto make the driver's speed information available. For example, you could make\nspeed information available to rideshare operators to help them encourage their\ndrivers to adhere to the speed limit and improve safety.\n\nCustomizing thresholds for speed alerts\n---------------------------------------\n\nYou can customize the speed alert threshold for both minor and major speed\nalerts as a percentage over the speed limit of the current speed. You can also\nspecify how long the threshold is exceeded before the map displays the alert.\n\nThe following code example sets the threshold for a minor speed alert to five\npercent over the speed limit, and the threshold for a major speed alert to 10\npercent over the speed limit. It specifies that the map displays an alert after\nan alert threshold has been exceeded for five seconds.\n\n\u003cbr /\u003e\n\n### Swift\n\n\u003cbr /\u003e\n\n let minorSpeedAlertThresholdPercentage: CGFloat = 0.05 let\n majorSpeedAlertThresholdPercentage: CGFloat = 0.1 let\n severityUpgradeDurationSeconds: TimeInterval = 5\n\n // Configure SpeedAlertOptions let mutableSpeedAlertOptions:\n GMSNavigationMutableSpeedAlertOptions = GMSNavigationMutableSpeedAlertOptions()\n mutableSpeedAlertOptions.setSpeedAlertThresholdPercentage(minorSpeedAlertThresholdPercentage,\n for: .minor)\n mutableSpeedAlertOptions.setSpeedAlertThresholdPercentage(majorSpeedAlertThresholdPercentage,\n for: .major) mutableSpeedAlertOptions.severityUpgradeDurationSeconds =\n severityUpgradeDurationSeconds\n\n // Set SpeedAlertOptions to Navigator. mapView.navigator?.speedAlertOptions =\n mutableSpeedAlertOptions; mapView.navigator?.add(self); // Only needed if\n listening to the delegate events.\n\n\u003cbr /\u003e\n\n### Objective-C\n\n\u003cbr /\u003e\n\n static const CGFloat minorSpeedAlertThresholdPercentage = 0.05; static const\n CGFloat majorSpeedAlertThresholdPercentage = 0.1; static const NSTimeInterval\n severityUpgradeDurationSeconds = 5;\n\n // Configure SpeedAlertOptions GMSNavigationMutableSpeedAlertOptions\n *mutableSpeedAlertOptions = [[GMSNavigationMutableSpeedAlertOptions alloc]\n init]; [mutableSpeedAlertOptions setSpeedAlertThresholdPercentage:\n minorSpeedAlertThresholdPercentage\n forSpeedAlertSeverity:GMSNavigationSpeedAlertSeverityMinor];\n [mutableSpeedAlertOptions\n setSpeedAlertThresholdPercentage:majorSpeedAlertThresholdPercentage\n forSpeedAlertSeverity:GMSNavigationSpeedAlertSeverityMajor];\n [mutableSpeedAlertOptions\n setSeverityUpgradeDurationSeconds:severityUpgradeDurationSeconds];\n\n // Set SpeedAlertOptions to Navigator. mapView.navigator.speedAlertOptions =\n mutableSpeedAlertOptions; [mapView.navigator addListener:self]; // Only needed\n if listening to the delegate events.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nCustomizing how the speedometer displays speed alerts\n-----------------------------------------------------\n\nYou can customize the colors of the speedometer display for each alert level.\n\nThe following table shows the default colors for speed alerts in the\n`GMSNavigationSpeedometerUIOptions` class:\n\n| Element | Color |\n|-----------------------------------------|-----------------|\n| MinorSpeedAlertBackgroundColorDayMode | 0xffffff(white) |\n| MinorSpeedAlertBackgroundColorNightMode | 0x000000 |\n| MinorSpeedAlertTextColorDayMode | 0xd93025 |\n| MinorSpeedAlertTextColorNightMode | 0xd93025 |\n| MajorSpeedAlertBackgroundColorDayMode | 0xd93025 |\n| MajorSpeedAlertBackgroundColorNightMode | 0xd93025 |\n| MajorSpeedAlertTextColorDayMode | 0xffffff(white) |\n| MajorSpeedAlertTextColorNightMode | 0xffffff(white) |\n\nYou can specify the text and background color of the speedometer for both minor\nand major speed alerts:\n\n\u003cbr /\u003e\n\n### Swift\n\n\u003cbr /\u003e\n\n let mutableSpeedometerUIOptions: GMSNavigationMutableSpeedometerUIOptions =\n GMSNavigationMutableSpeedometerUIOptions()\n mutableSpeedometerUIOptions.setTextColor(minorSpeedAlertTextColor, for: .minor,\n lightingMode: .normal)\n mutableSpeedometerUIOptions.setTextColor(majorSpeedAlertTextColor, for: .major,\n lightingMode: .normal)\n mutableSpeedometerUIOptions.setBackgroundColor(minorSpeedAlertNightModeBackgroundColor,\n for: .minor, lightingMode: .lowLight)\n mutableSpeedometerUIOptions.setBackgroundColor(majorSpeedAlertDayModeBackgroundColor,\n for: .major, lightingMode: .normal)\n\n mapView.settings.speedometerUIOptions = mutableSpeedometerUIOptions\n\n\u003cbr /\u003e\n\n### Objective-C\n\n\u003cbr /\u003e\n\n GMSNavigationMutableSpeedometerUIOptions *mutableSpeedometerUIOptions =\n [[GMSNavigationMutableSpeedometerUIOptions alloc] init];\n [mutableSpeedometerUIOptions setTextColor: minorSpeedAlertTextColor\n forSpeedAlertSeverity: GMSNavigationSpeedAlertSeverityMinor lightingMode:\n GMSNavigationLightingModeNormal]; [mutableSpeedometerUIOptions setTextColor:\n majorSpeedAlertTextColor forSpeedAlertSeverity:\n GMSNavigationSpeedAlertSeverityMajor lightingMode:\n GMSNavigationLightingModeNormal]; [mutableSpeedometerUIOptions\n setBackgroundColor: minorSpeedAlertNightModeBackgroundColor\n forSpeedAlertSeverity: GMSNavigationSpeedAlertSeverityMinor lightingMode:\n GMSNavigationLightingModeLowLight]; [mutableSpeedometerUIOptions\n setBackgroundColor: majorSpeedAlertDayModeBackgroundColor forSpeedAlertSeverity:\n GMSNavigationSpeedAlertSeverityMajor\n lightingMode:GMSNavigationLightingModeNormal];\n\n mapView.settings.speedometerUIOptions = mutableSpeedometerUIOptions;\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nReceiving speed information from drivers\n----------------------------------------\n\nIf your application requires sharing information about driver speed, you can\nalso use the Navigation SDK to make the driver's speed information available.\nThis can be useful for rideshare applications in which an operator may want to\nmonitor excessive speeding by drivers to improve safety.\n\nFor example, the following example shares speed information when the speed is a\nspecified percentage over the speed limit:\n\n\u003cbr /\u003e\n\n### Swift\n\n\u003cbr /\u003e\n\n // Listener method for sharing speed information when the speed exceeds the\n speed limit by a specified percentage. #pragma mark GMSNavigatorListener func\n navigator(_ navigator : GMSNavigator, didUpdateSpeedingPercentage\n percentageAboveLimit : Float) { ... }\n\n\u003cbr /\u003e\n\n### Objective-C\n\n\u003cbr /\u003e\n\n // Listener method listening to speeding feed. #pragma mark\n GMSNavigatorListener - (void)navigator:(GMSNavigator *)navigator\n didUpdateSpeedingPercentage:(float)percentageAboveLimit { ... }\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e"]]