自訂 iOS UI

您可以使用 Consumer SDK，將自訂標記和路線套用至應用程式設計。這些設計元素可讓消費者應用程式顯示車輛路線的動態預覽畫面。

本指南將說明 SDK 在 consumerMapStyleCoordinator 屬性中提供的選項。這個屬性可透過 GMTCMapView 類別取得。本文僅涵蓋 UI 元素，並假設您具備可正常運作的消費者應用程式。如要進一步瞭解如何設定 Consumer SDK 所需的後端服務，請參閱開始使用 Fleet Engine 一文。

初始化 UI 自訂選項

用於初始設定 UI 自訂選項的建議回呼會在 GMTCMapViewDelegate 中宣告。當 GMTCMapView 物件準備好轉譯地圖時，就會觸發 mapViewDidInitialize 回呼。樣式協調器已初始化，但沒有任何 UI 元素。

Swift

/** ViewController.swift */

class ViewController: UIViewController, GMTCMapViewDelegate {

  // MARK: - GMTCMapViewDelegate

  func mapViewDidInitialize(_ mapview: GMTCMapView) {
    // Set the UI customization options here.
  }
}

Objective-C

/** ViewController.m */

@interface ViewController () <GMTCMapViewDelegate>

#pragma mark GMTCMapViewDelegate

- (void)mapViewDidInitialize:(GMTCMapView *)mapview {
  // Set the UI customization options here.
}

自訂標記

下例使用 GMTCMapView 自訂標記樣式。如要設定標記類型及其屬性，請使用 setMarkerStyleOptions(_:markerType:)。您的自訂標記選項會覆寫 Consumer SDK 提供的預設值。

Swift

/** ViewController.swift */

private func changeMarkerStyle(
  markerStyleOptions: GMTCMarkerStyleOptions?,
  markerType: GMTCCustomizableMarkerType
) {
  let styleCoordinator = mapView.consumerMapStyleCoordinator
  styleCoordinator.setMarkerStyleOptions(markerStyleOptions, markerType: markerType)
}

/** To restore the default values, call setMarkerStyleOptions(_:markerType:) using nil for the GMTCMarkerStyleOptions parameter.
Here is an example of retrieving the active GMTCMarkerStyleOptions. */

private func retrieveMarkerStyle(markerType: GMTCCustomizableMarkerType) {
  let styleCoordinator = mapView.consumerMapStyleCoordinator

  // The 'markerStyleOptions' contains the stored style options for this marker type.
  let markerStyleOptions = styleCoordinator.markerStyleOptions(for: markerType)
}

Objective-C

/** ViewController.h */

- (void)changeMarkerStyle:(nullable GMTCMarkerStyleOptions *)markerStyleOptions
               markerType:(GMTCCustomizableMarkerType)markerType {
  GMTCConsumerMapStyleCoordinator *styleCoordinator = _mapView.consumerMapStyleCoordinator;
  [styleCoordinator setMarkerStyleOptions:markerStyleOptions markerType:markerType];
}

/** To restore the default values, call setMarkerStyleOptions:markerStyleOptions:markerType: using nil for the GMTCMarkerStyleOptions parameter.
Here is an example of retrieving the active GMTCMarkerStyleOptions. */

- (void)retrieveMarkerStyle:(GMTCCustomizableMarkerType)markerType {
  GMTCConsumerMapStyleCoordinator *styleCoordinator = _mapView.consumerMapStyleCoordinator;

  // The 'markerStyleOptions' contains the stored style options for this marker type.
  GMTCMarkerStyleOptions *markerStyleOptions = [styleCoordinator markerStyleOptionsForType:markerType];
}

標記類型

以下是可供自訂的標記：

• GMTCCustomizableMarkerType.unknown
• GMTCCustomizableMarkerType.tripPickupPoint
• GMTCCustomizableMarkerType.tripDropoffPoint
• GMTCCustomizableMarkerType.tripVehicle
• GMTCCustomizableMarkerType.intermediateDestination

在行程和訂單進度期間，使用 GMTCCustomizableMarkerType.tripPickupPoint、GMTCCustomizableMarkerType.intermediateDestination 和 GMTCCustomizableMarkerType.tripDropoffPoint 自訂路線控點。

使用 GMTCCustomizableMarkerType.tripVehicle 自訂行程和訂單進度中的車輛圖示。標記圖示不會根據行程的實際交通工具類型變更。

標記選項

每個標記可用的可自訂屬性是 Google 地圖 MarkerOptions 所提供屬性的子集。Consumer SDK GMTCMarkerStyleOptions 是使用初始化器建構，建構後就無法變更。系統會為每個屬性提供預設值，因此您只需指定自訂值。

下列屬性可供自訂：

• groundAnchor
• isVisible
• iconView
• icon
• zIndex
• isFlat

將 isVisible 設為 false，相當於「停用」標記。建議您提供足夠的資料，以便使用自己的 UI 元素。

範例

Swift

/** MapViewController.swift */

private func updateMarkerUIOptions() {
  // Get the GMTCConsumerMapStyleCoordinator
  let consumerMapStyleCoordinator = mapView.consumerMapStyleCoordinator

  // The marker type that you would like to set custom UI options for.
  let customizableMarkerType = GMTCCustomizableMarkerType.tripVehicle

  // Initializing marker options.
  let markerStyleOptions = GMTCMutableMarkerStyleOptions()
  markerStyleOptions.groundAnchor = kGMSMarkerDefaultGroundAnchor
  markerStyleOptions.icon = icon
  markerStyleOptions.zIndex = 100
  markerStyleOptions.isFlat = false
  markerStyleOptions.isVisible = true

  consumerMapStyleCoordinator.setMarkerStyleOptions(markerStyleOptions, markerType: customizableMarkerType)

  // Reset marker options to default values.
  consumerMapStyleCoordinator.setMarkerStyleOptions(nil, markerType: customizableMarkerType)
}

Objective-C

/** MapViewController.m */

- (void)updateMarkerUIOptions {
  // Get the GMTCConsumerMapStyleCoordinator
  GMTCConsumerMapStyleCoordinator *consumerMapStyleCoordinator = [_mapView consumerMapStyleCoordinator];

  // The marker type that you would like to set custom UI options for.
  GMTCCustomizableMarkerType customizableMarkerType = GMTCCustomizableMarkerTypeTripVehicle;

  // Initializing marker options.
  GMTCMutableMarkerStyleOptions *markerStyleOptions =
      [[GMTCMutableMarkerStyleOptions alloc] init];
  markerStyleOptions.groundAnchor = kGMSMarkerDefaultGroundAnchor;
  markerStyleOptions.icon = icon;
  markerStyleOptions.zIndex = 100;
  markerStyleOptions.isFlat = NO;
  markerStyleOptions.isVisible = YES;

  [consumerMapStyleCoordinator setMarkerStyleOptions:markerStyleOptions markerType:customizableMarkerType];

  // Reset marker options to default values.
  [consumerMapStyleCoordinator setMarkerStyleOptions:nil markerType:customizableMarkerType];
}

為取貨標記動態更新預計到達時間

如要建立取貨標記，定期動態顯示最新的預計到達時間，請更新 GMTCCustomizableMarkerType.tripPickupPoint 的標記樣式選項。

範例

Swift

/** MapViewController.swift */

/// Updates the ETA every minute by creating a Timer that repeats every minute.
private func schedulePickupMarkerStyleUpdates() {
  Timer.scheduledTimer(
    timeInterval: 60.0,  // Update marker ETA every minute.
    target: self,
    selector: #selector(updatePickupMarkerETA),
    userInfo: nil,
    repeats: true)
}

/// Updates the marker options for GMTCCustomizableMarkerType.tripPickupPoint for the current time.
@objc private func updatePickupMarkerETA() {
  let consumerMapStyleCoordinator = mapView.consumerMapStyleCoordinator
  let previousOptions = consumerMapStyleCoordinator.markerStyleOptions(for: .tripPickupPoint)

  // Get updated ETA icon.
  let updatedETAIcon = pickupIconForCurrentTime()

  let markerStyleOptions = GMTCMutableMarkerStyleOptions()
  markerStyleOptions.groundAnchor = kGMSMarkerDefaultGroundAnchor
  markerStyleOptions.icon = updatedETAIcon
  markerStyleOptions.zIndex = 100
  markerStyleOptions.isFlat = false
  markerStyleOptions.isVisible = true

  consumerMapStyleCoordinator.setMarkerStyleOptions(markerStyleOptions, markerType: .tripPickupPoint)
}

Objective-C

/** MapViewController.m */

/** Updates the ETA every minute by creating an NSTimer that repeats every minute. */
- (void)schedulePickupMarkerStyleUpdates {
  [NSTimer scheduledTimerWithTimeInterval:60.0 // Update marker ETA every minute.
                                   target:self
                                 selector:@selector(updatePickupMarkerETA)
                                 userInfo:nil
                                  repeats:YES];
}

/** Updates the marker options for GMTCCustomizableMarkerTypeTripPickupPoint for the current time. */
- (void)updatePickupMarkerETA {
  GMTCConsumerMapStyleCoordinator *consumerMapStyleCoordinator = [_mapView consumerMapStyleCoordinator];
  GMTCMarkerStyleOptions *previousOptions = [consumerMapStyleCoordinator markerStyleOptionsForType:GMTCCustomizableMarkerTypeTripPickupPoint];

  // Get updated ETA icon.
  UIImage *updatedETAIcon = [self pickupIconForCurrentTime];

  GMTCMutableMarkerStyleOptions *markerStyleOptions =
                               [[GMTCMutableMarkerStyleOptions alloc] init];
  markerStyleOptions.groundAnchor = kGMSMarkerDefaultGroundAnchor;
  markerStyleOptions.icon = updatedETAIcon;
  markerStyleOptions.zIndex = 100;
  markerStyleOptions.isFlat = NO;
  markerStyleOptions.isVisible = YES;

  [consumerMapStyleCoordinator setMarkerStyleOptions:markerStyleOptions markerType:GMTCCustomizableMarkerTypeTripPickupPoint];
}

自訂折線

折線自訂功能是使用 GMTCConsumerMapStyleCoordinator#setPolylineStyleOptions(_:polylineType:) 進行設定。

以下範例說明如何設定折線樣式選項：

Swift

/** ViewController.swift */

private func changePolylineStyleOptions(
  polylineStyleOptions: GMTCPolylineStyleOptions?,
  polylineType: GMTCPolylineType
) {
  let styleCoordinator = mapView.consumerMapStyleCoordinator
  styleCoordinator.setPolylineStyleOptions(polylineStyleOptions, polylineType: polylineType)
}

/* Setting custom polyline options will override the default values provided by the Consumer SDK.
The default values can be restored by calling setPolylineStyleOptions(_:polylineType:) with nil for the GMTCPolylineStyleOptions.
The active GMTCPolylineStyleOptions can be retrieved via */

private func retrievePolylineStyleOptions(for polylineType: GMTCPolylineType) {
  let styleCoordinator = mapView.consumerMapStyleCoordinator

  // The 'polylineStyleOptions' contains the stored style options for this polyline type.
  let polylineStyleOptions = styleCoordinator.polylineStyleOptions(for: polylineType)
}

Objective-C

/** ViewController.h */

- (void)changePolylineStyleOptions:(nullable GMTCPolylineStyleOptions *)polylineStyleOptions
                      polylineType:(GMTCPolylineType)polylineType {
  GMTCConsumerMapStyleCoordinator *styleCoordinator = _mapView.consumerMapStyleCoordinator;
  [styleCoordinator setPolylineStyleOptions:polylineStyleOptions polylineType:polylineType];
}

/* Setting custom polyline options will override the default values provided by the Consumer SDK.
The default values can be restored by calling setPolylineStyleOptions:polylineType: with nil for the GMTCPolylineStyleOptions.
The active GMTCPolylineStyleOptions can be retrieved via */

- (void)retrievePolylineStyleOptionsForType:(GMTCPolylineType)polylineType {
  GMTCConsumerMapStyleCoordinator *styleCoordinator = _mapView.consumerMapStyleCoordinator;

  // The 'polylineStyleOptions' contains the stored style options for this polyline type.
  GMTCPolylineStyleOptions *polylineStyleOptions = [styleCoordinator polylineStyleOptionsForType:polylineType];
}

折線類型

以下折線類型可供自訂：

• GMTCPolylineType.activeRoute
• GMTCPolylineType.remainingRoute

整個行程和訂單進度都會顯示 GMTCPolylineType.activeRoute 和 GMTCPolylineType.remainingRoute。GMTCPolylineType.activeRoute 是車輛前往乘客下一個地點的路線，無論車輛是上車還是下車地點。GMTCPolylineType.remainingRoute 是車輛完成 GMTCPolylineType.activeRoute 後剩餘的行程路段。

折線屬性

每個折線可用的可自訂屬性都是 Google 地圖 PolylineOptions 所提供屬性的子集。 Consumer SDK 的 GMTCPolylineStyleOptions 是使用初始化工具建構而成。如果您要為任何屬性提供自訂值，這些屬性可以是不可變動或變動。系統會為每個屬性提供預設值。

下列屬性可供自訂：

• color
• width
• isVisible
• isTrafficEnabled

將 isVisible 設為 false 等同於停用折線。根據預設，isTrafficEnabled 會設為 false。

範例

Swift

/** MapViewController.swift */

private func updatePolylineUIOptions() {
  // Get the GMTCConsumerMapStyleCoordinator
  let consumerMapStyleCoordinator = mapView.consumerMapStyleCoordinator

  // The polyline type that you would like to set custom UI options for.
  let customizablePolylineType = GMTCPolylineType.activeRoute

  // Initializing polyline options with default values (immutable version).
  let polylineStyleOptions = GMTCPolylineStyleOptions()
  consumerMapStyleCoordinator.setPolylineStyleOptions(
    polylineStyleOptions, polylineType: customizablePolylineType)

  // Initializing polyline options with custom values (mutable version).
  let mutablePolylineStyleOptions = GMTCMutablePolylineStyleOptions()
  mutablePolylineStyleOptions.isVisible = true
  mutablePolylineStyleOptions.isTrafficEnabled = true
  mutablePolylineStyleOptions.setTrafficColorFor(.slow, color: .yellow)
  mutablePolylineStyleOptions.setTrafficColorFor(.trafficJam, color: .purple)
  consumerMapStyleCoordinator.setPolylineStyleOptions(
    mutablePolylineStyleOptions, polylineType: customizablePolylineType)

  // Reset polyline options to default values.
  consumerMapStyleCoordinator.setPolylineStyleOptions(
    nil, polylineType: customizablePolylineType)
}

Objective-C

/** MapViewController.m */

- (void)updatePolylineUIOptions {
  // Get the GMTCConsumerMapStyleCoordinator
  GMTCConsumerMapStyleCoordinator *consumerMapStyleCoordinator = [_mapView consumerMapStyleCoordinator];

  // The polyline type that you would like to set custom UI options for.
  GMTCPolylineType customizablePolylineType = GMTCPolylineTypeActiveRoute;

  // Initializing polyline options with default values (immutable version).
  GMTCPolylineStyleOptions *polylineStyleOptions = [[GMTCPolylineStyleOptions alloc] init];
  [consumerMapStyleCoordinator setPolylineStyleOptions:polylineStyleOptions
                                          polylineType:customizablePolylineType];

  // Initializing polyline options with custom values (mutable version).
  GMTCMutablePolylineStyleOptions *mutablePolylineStyleOptions = [[GMTCMutablePolylineStyleOptions alloc] init];
  mutablePolylineStyleOptions.isVisible = YES;
  mutablePolylineStyleOptions.isTrafficEnabled = YES;
  [mutablePolylineStyleOptions setTrafficColorForSpeed:GMTSSpeedTypeSlow color:[UIColor yellowColor]];
  [mutablePolylineStyleOptions setTrafficColorForSpeed:GMTSSpeedTypeTrafficJam color:[UIColor purpleColor]];
  [consumerMapStyleCoordinator setPolylineStyleOptions:mutablePolylineStyleOptions
                                          polylineType:customizablePolylineType];

  // Reset polyline options to default values.
  [consumerMapStyleCoordinator setPolylineStyleOptions:nil
                                          polylineType:customizablePolylineType];
}

車流量感知折線

折線的車流量圖層預設為停用。透過 polylineStyleOptions.isTrafficEnabled = true 啟用時，代表非一般流量的延伸線段會繪製成路線。

交通狀況是以下列四種速度之一表示：GMTSSpeedType.noData、GMTSSpeedType.normal、GMTSSpeedType.slow 和 GMTSSpeedType.trafficJam。各個速度分類的顏色可透過 setTrafficColorFor(_:color:) 自訂。