Offline Map using ArcGIS android SDK

问题

I'm trying to develop an Offline maps application using ArcGis android sdk. Followed the tutorials from the ArcGis website.Since it is an Offline Maps Applicaion, I am testing it without an internet connection. But, when I run the application,the MapView is blank. It just shows a black screen. When I checked the Logcat, It says

11-26 14:39:57.757 28520-28520/com.example.lalprakash.offlinearcgismap D/GLSurfaceView: checkGLSurfaceViewlLogProperty get invalid command
11-26 14:39:57.839 28520-28548/com.example.lalprakash.offlinearcgismap I/System.out: httpget:http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer?f=json
11-26 14:39:57.840 28520-28548/com.example.lalprakash.offlinearcgismap I/System.out: http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer?f=json
11-26 14:39:57.846 28520-28548/com.example.lalprakash.offlinearcgismap I/System.out: [CDS][DNS]Unable to resolve host "server.arcgisonline.com": No address associated with hostname
11-26 14:39:57.846 28520-28548/com.example.lalprakash.offlinearcgismap E/ArcGIS: url =http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer
11-26 14:39:57.884 28520-28520/com.example.lalprakash.offlinearcgismap V/PhoneWindow: DecorView setVisiblity: visibility = 4 ,Parent =null, this =com.android.internal.policy.impl.PhoneWindow$DecorView{41ce4470 I.E..... R.....ID 0,0-0,0}
11-26 14:39:57.891 28520-28520/com.example.lalprakash.offlinearcgismap V/PhoneWindow: DecorView setVisiblity: visibility = 0 ,Parent =ViewRoot{41d35928 com.example.lalprakash.offlinearcgismap/com.example.lalprakash.offlinearcgismap.MainActivity,ident = 0}, this =com.android.internal.policy.impl.PhoneWindow$DecorView{41ce4470 V.E..... R.....ID 0,0-0,0}

I can't understand from where, a request to server.arcgisonline.com is going. My java file and xml file are as follows

MainActivity.java

public class MainActivity extends Activity {

    MapView mMapView;
    String extern = Environment.getExternalStorageDirectory().getPath();
    final String tpkPath = "/ArcGIS/samples/OfflineRouting/ImageryTPK.tpk";
    TiledLayer mTileLayer;
    GraphicsLayer mGraphicsLayer = new GraphicsLayer(GraphicsLayer.RenderingMode.DYNAMIC);

    RouteTask mRouteTask = null;
    NAFeaturesAsFeature mStops = new NAFeaturesAsFeature();

    Locator mLocator = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mTileLayer = new ArcGISLocalTiledLayer(extern + tpkPath);
        // Retrieve the map and initial extent from XML layout
        mMapView = (MapView) findViewById(R.id.map);

        // Set the tiled map service layer and add a graphics layer
        mMapView.addLayer(mTileLayer);
        mMapView.addLayer(mGraphicsLayer);
    }

}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.esri.android.map.MapView
        android:id="@+id/map"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        initExtent = "-1.3296373526814876E7 3930962.41823043 -1.2807176545789773E7 4201243.7502468005"
        mapoptions.MapType="Topo"
        mapoptions.ZoomLevel="16" />
</RelativeLayout>

and the build.gradle is as follows

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        applicationId "com.example.lalprakash.offlinearcgismap"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        sourceSets.main{
            jniLibs.srcDir 'src/main/jni'
            jni.srcDirs=[]
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:design:23.1.1'
    compile files('libs/arcgis-android-api.jar')
    compile files('libs/arcgis-android-app-toolkit.jar')
    compile files('libs/jackson-all-1.9.0.jar')
}

Also, I've placed the tpk file in the root of my internal memory. Please help me as I need it really badly. Thank you.

回答1:

can you remove the initextent and mapoption.maptype from ur XML and tell me what happens.i havent got the chance to take a look at ur stack trace but this should show u ur map on ur screen

来源：https://stackoverflow.com/questions/33934594/offline-map-using-arcgis-android-sdk

标签

android

android-studio

maps

arcgis