<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.example.syncgdb.MainActivity">    <!-- MapView -->    <com.esri.android.map.MapView        android:id="@+id/map"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        mapoptions.MapType="Topo"        mapoptions.ZoomLevel="5"        mapoptions.center="28.671298, 104.066404" />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="离线数据同步"        android:id="@+id/btnSync"        android:layout_alignParentTop="true"        android:layout_alignParentRight="true"        android:layout_alignParentEnd="true" /></RelativeLayout>

package com.example.syncgdb;import android.app.Activity;import android.app.ProgressDialog;import android.content.Context;import android.os.Environment;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.Toast;import com.esri.android.map.FeatureLayer;import com.esri.android.map.MapView;import com.esri.core.ags.FeatureServiceInfo;import com.esri.core.geodatabase.Geodatabase;import com.esri.core.geodatabase.GeodatabaseFeatureTable;import com.esri.core.geodatabase.GeodatabaseFeatureTableEditErrors;import com.esri.core.map.CallbackListener;import com.esri.core.tasks.geodatabase.GeodatabaseStatusCallback;import com.esri.core.tasks.geodatabase.GeodatabaseStatusInfo;import com.esri.core.tasks.geodatabase.GeodatabaseSyncTask;import com.esri.core.tasks.geodatabase.SyncGeodatabaseParameters;import java.io.File;import java.io.FileNotFoundException;import java.util.Map;public class MainActivity extends AppCompatActivity {    protected static final String TAG = "syncGDB";    private Context context;    private MapView mMapView;//地图容器    private static String onlineFeatureLayerUrl = "http://192.168.1.212:6080/arcgis/rest/services/testdata/FeatureServer";//在线FeatureLayer地址    private static String localGdbFilePath;//离线GDB地址    private GeodatabaseSyncTask gdbSyncTask;//离线地理数据库下载Task    private ProgressDialog mProgressDialog;//状态框    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        this.context = this;        this.mMapView = (MapView)findViewById(R.id.map);        //设置离线地理数据库存储路径        localGdbFilePath = createGeodatabaseFilePath();        //加载离线地理数据库        addFeatureLayer(localGdbFilePath);        mProgressDialog = new ProgressDialog(context);        //设置点击进度对话框外的区域对话框不消失        mProgressDialog.setCanceledOnTouchOutside(false);        mProgressDialog.setTitle("正在同步离线地理数据库副本到服务器");                //绑定按钮设置下载事件        Button btnSyncGDB = (Button)this.findViewById(R.id.btnSync);        btnSyncGDB.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                SyncOfflineData();//同步离线地理数据库            }        });    }    /**     * Geodatabase文件存储路径     */    static String createGeodatabaseFilePath() {        return Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "/RuntimeOfflineEdit"                + File.separator + "demo.geodatabase";    }    /**     * 读取Geodatabase中离线地图信息     * @param featureLayerPath 离线Geodatabase文件路径     */    private void addFeatureLayer(String featureLayerPath) {        Geodatabase localGdb = null;        try {            localGdb = new Geodatabase(featureLayerPath);        } catch (FileNotFoundException e) {            e.printStackTrace();        }        // 添加FeatureLayer到MapView中        if (localGdb != null) {            for (GeodatabaseFeatureTable gdbFeatureTable : localGdb.getGeodatabaseTables()) {                if (gdbFeatureTable.hasGeometry()){                    FeatureLayer layer = new FeatureLayer(gdbFeatureTable);                    mMapView.addLayer(layer);                }            }        }    }    /**     * 同步离线地理数据库     */    private void SyncOfflineData() {        Log.i(TAG, "Sync GeoDatabase");        // create a dialog to update user on progress        mProgressDialog.show();        gdbSyncTask = new GeodatabaseSyncTask(onlineFeatureLayerUrl, null);        gdbSyncTask.fetchFeatureServiceInfo(new CallbackListener<FeatureServiceInfo>() {            @Override            public void one rror(Throwable arg0) {                Log.e(TAG, "获取FeatureServiceInfo失败");            }            @Override            public void onCallback(FeatureServiceInfo fsInfo) {                if (fsInfo.isSyncEnabled()) {                    SyncGeodatabase(fsInfo);                }            }        });    }    /**     * 根据FeatureServiceInfo信息获取离线地理数据库同步信息     * @param featureServerInfo 服务参数信息     */    private void SyncGeodatabase(FeatureServiceInfo featureServerInfo) {        try {            // 创建一个离线地理数据库            Geodatabase gdb = new Geodatabase(localGdbFilePath);            // 获取离线地理数据库同步参数            final SyncGeodatabaseParameters syncParams = gdb.getSyncParameters();            CallbackListener<Map<Integer, GeodatabaseFeatureTableEditErrors>> syncResponseCallback                    = new CallbackListener<Map<Integer, GeodatabaseFeatureTableEditErrors>>() {                @Override                public void onCallback(Map<Integer, GeodatabaseFeatureTableEditErrors> objs) {                    mProgressDialog.dismiss();                    if (objs != null) {                        if (objs.size() > 0) {                            showMakeText("同步完成，但是发生错误");                        } else {                            showMakeText("同步完成：同步成功");                        }                    } else {                        showMakeText("同步完成：同步成功");                    }                }                @Override                public void one rror(Throwable e) {                    Log.e(TAG, "", e);                    mProgressDialog.dismiss();                    Toast.makeText(context, "Error:"+e.toString(), Toast.LENGTH_SHORT).show();                }            };            GeodatabaseStatusCallback statusCallback = new GeodatabaseStatusCallback() {                @Override                public void statusUpdated(GeodatabaseStatusInfo status) {                    final String progress = status.getStatus().toString();                    //在UI线程更新下载状态                    ((Activity)context).runOnUiThread(new Runnable(){                        @Override                        public void run() {                            mProgressDialog.setMessage("数据同步中，请稍后……");                        }                    });                }            };            // 执行同步            gdbSyncTask.syncGeodatabase(syncParams, gdb, statusCallback, syncResponseCallback);        } catch (Exception e) {            e.printStackTrace();        }    }    /**     * 在UI线程中执行状态提示     * @param msg     */    private void showMakeText(final String msg) {        //在UI线程更新下载状态        ((Activity)context).runOnUiThread(new Runnable(){            @Override            public void run() {                Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();            }        });    }}