今天我們來學習關於arcgis for android載入切片地圖服務相關知識。使用的是新版本的arcgis runtime for android100.3，我們來看下載入切片地圖服務的類ArcGISTiledLayer，該類繼承了ImageTiledLayer類，其中ArcGISTiledLayer有兩個建構函式，分別是

ArcGISTiledLayer(String url)和ArcGISTiledLayer(TileCache tileCache)。下面來看一下UML結構圖。

實現的程式碼非常簡單。

package com.esri.arcgisruntime.sample.tiledlayerfromurl;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

import com.esri.arcgisruntime.layers.ArcGISTiledLayer;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.Basemap;
import com.esri.arcgisruntime.mapping.view.MapView;

public class MainActivity extends AppCompatActivity {

  private MapView mMapView;

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

   
    mMapView = (MapView) findViewById(R.id.mapViewLayout);
  
    ArcGISTiledLayer tiledLayerBaseMap = new ArcGISTiledLayer(getResources().getString(R.string.world_topo_service));
  
    Basemap basemap = new Basemap(tiledLayerBaseMap);
    
    ArcGISMap map = new ArcGISMap(basemap);
    
    mMapView.setMap(map);
  }

  @Override
  protected void onPause() {
    super.onPause();
    mMapView.pause();
  }

  @Override
  protected void onResume() {
    super.onResume();
    mMapView.resume();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    mMapView.dispose();
  }
}
 

最後實現效果如下：

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