Google Direction Api

谷歌方向API？

圖書館詳情：

這是一個 Android 庫，它為您提供兩點（位置）之間的方向路徑，例如裝置位置到目的地位置。要使用此程式庫，您需要在 Goolge Cloud Console 上建立一個項目，並啟用 Map SDK 和 Google Direction Api。全部設定完成後，只需按照以下簡單步驟即可在您的專案中實現程式碼。

示範

	點擊觀看影片示範 或者 YouTube 實作教學
影像	影片示範

實施過程：

搖籃

在build.gradle （專案層級）檔案中新增 jitpack 儲存庫：

 allprojects {
      repositories {
	.. .
	maven { url ' https://jitpack.io ' }
	}
}

或者

在你的settings.gradle中

 dependencyResolutionManagement {
    repositoriesMode . set( RepositoriesMode . FAIL_ON_PROJECT_REPOS )
    repositories {
        .. .
        maven { url " https://jitpack.io " }
    }
}

新增依賴項：

在build.gradle （模組級）檔案中新增依賴項：

dependencies {
	  implementation ' com.github.dangiashish:Google-Direction-Api:1.6 '
}

在您的地圖活動中

 public void getRoutePoints ( LatLng start , LatLng end ) {
       if ( start == null || end == null ) {
           Toast . makeText ( this , "Unable to get location" , Toast . LENGTH_LONG ). show ();
           Log . e ( "TAG" , " latlngs are null" );
       } else {
           RouteDrawing routeDrawing = new RouteDrawing . Builder ()
                . context ( MainActivity . this )  // pass your activity or fragment's context
                . travelMode ( AbstractRouting . TravelMode . DRIVING )
                . withListener ( this ). alternativeRoutes ( true )
                . waypoints ( userLoc , destLoc )
                . build ();
        routeDrawing . execute ();
       }

}

注意：請針對您的特定 Android 軟體包名稱限制 GCP 上的 api 金鑰

在您的Activity/Fragment中實作RouteListener介面類別以覆寫操作

路線失敗

 @ Override
public void onRouteFailure ( ErrorHandling e ) {
    Log . w ( "TAG" , "onRoutingFailure: " + e );
}

路線開始時

 @ Override
public void onRouteStart () {
    Log . d ( "TAG" , "yes started" );
}
    

成功之路

 @ Override
public void onRouteSuccess ( ArrayList < RouteInfoModel > routeInfoModelArrayList , int routeIndexing ) {
     if ( polylines != null ) {
         polylines . clear ();
     }
     PolylineOptions polylineOptions = new PolylineOptions ();
     ArrayList < Polyline > polylines = new ArrayList <>();
     for ( int i = 0 ; i < routeInfoModelArrayList . size (); i ++) {
         if ( i == routeIndexing ) {
             Log . e ( "TAG" , "onRoutingSuccess: routeIndexing" + routeIndexing );
             polylineOptions . color ( Color . BLACK );
             polylineOptions . width ( 12 );
             polylineOptions . addAll ( routeInfoModelArrayList . get ( routeIndexing ). getPoints ());
             polylineOptions . startCap ( new RoundCap ());
             polylineOptions . endCap ( new RoundCap ());
             Polyline polyline = map . addPolyline ( polylineOptions );
             polylines . add ( polyline );
	  }
     }

}

航線已取消

 @ Override
public void onRouteCancelled () {
    Log . d ( "TAG" , "route canceled" )
    // restart your route drawing
}

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 MIT License

Copyright (c) 2023 Ashish Dangi

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