安卓智能地图开发与实施十五：离线与同步 - ArcGIS Runtime SDK for Android（Version 100.0.0）

离线与同步（GeodatabaseSyncTask）
针对编辑，上一节中凡事离线的，各种添加、更新、删除等都是针对终端上存储的离线数据。可以在没有网络的环境下完成，当具备网络时，还需同步到ArcGIS Server服务器中对应的要素服务（Feature Service）。
创建GeodatabaseSyncTask

private void createGeodatabaseSyncTask() {

// Create a GeodatabaseSyncTask and add a done loading listener

geodatabaseSyncTask = new GeodatabaseSyncTask(FEATURE_SERVICE_URL);

geodatabaseSyncTask.addDoneLoadingListener(new Runnable() {

@Override public void run() {

// Check if it failed to load. If its not in the failed state, inside a done loading listener the only other

// valid state is loaded

if (geodatabaseSyncTask.getLoadStatus() == LoadStatus.FAILED_TO_LOAD) {

dealWithException(geodatabaseSyncTask.getLoadError());

}

else

{

// Now the sync task is loaded, use it to create GenerateGeodatabaseParameters, or sync changes

generateGeodatabaseParameters();

}

}

});

// Load the sync task

geodatabaseSyncTask.loadAsync();

}

设置离线参数
指定范围、只保留第一个图层。

private void generateGeodatabaseParameters() {

// Create GenerateGeodatabaseParameters from the GeodatabaseSyncTask using current map extent

Envelope generateExtent = mapView.getVisibleArea().getExtent();

final ListenableFuture<GenerateGeodatabaseParameters> generateParamsFuture =

geodatabaseSyncTask.createDefaultGenerateGeodatabaseParametersAsync(generateExtent);

generateParamsFuture.addDoneListener(new Runnable() {

@Override

public void run() {

try {

generateParams = generateParamsFuture.get();

// Change GenerateGeodatabaseParameters as required - e.g. removes all layers except first from the sync

for (int i = generateParams.getLayerOptions().size() -1; i >= 1; i--) {

generateParams.getLayerOptions().remove(i);

}

// Now the parameters are prepared, use them with the sync task to generate a geodatabase

generateGeodatabase();

}

catch (InterruptedException | ExecutionException e) {

dealWithException(e);

}

}

});

}

获取离线数据

private void generateGeodatabase() {

// Download a copy of the geodatabase to the specified path, using prepared parameters

generateJob = geodatabaseSyncTask.generateGeodatabaseAsync(generateParams, GDB_PATH);

// Add listener to check and report on the current download status

generateJob.addJobChangedListener(new Runnable() {

@Override

public void run() {

// Deal with any errors found while generating the geodatabase

if (generateJob.getError() != null) {

dealWithException(generateJob.getError());

}

else {

// While job is in progress, review job messages or update progress in logs or user interface...

updateUiWithJobProgress(generateJob);

}

}

});

// Add listener to deal with the completed job

generateJob.addJobDoneListener(new Runnable() {

@Override

public void run() {

// Check the job state is complete, deal with any errors

if ((generateJob.getStatus() != Job.Status.SUCCEEDED) || (generateJob.getError() != null)) {

dealWithException(generateJob.getError());

}

else {

// Get the completed Geodatabase from the job

if (generateJob.getResult() instanceof Geodatabase) {

Geodatabase syncResultGdb = (Geodatabase) generateJob.getResult();

geodatabase = syncResultGdb;

// Use the geodatabase, for example, load it and create FeatureLayers based on the tables it contains

loadGeodatabase();

}

}

}

});

// Start the Job to generate the geodatabase

generateJob.start();

}

设置同步参数

private void createSyncParameters() {

// Create SyncGeodatabaseParameters based on default parameters from the sync tasks

final ListenableFuture<SyncGeodatabaseParameters> syncParamsFuture = geodatabaseSyncTask

.createDefaultSyncGeodatabaseParametersAsync(geodatabase);

syncParamsFuture.addDoneListener(new Runnable() {

@Override

public void run() {

try

{

// Retrieve the SyncGeodatabaseParameters from the future

syncParams = syncParamsFuture.get();

// Continue on to sync the database using the parameters

syncGeodatabase();

}

catch (InterruptedException | ExecutionException e) {

dealWithException(e);

}

}

});

}

同步离线编辑

private void syncGeodatabase() {

// Start the sync operation on the geodatabase

syncJob = geodatabaseSyncTask.syncGeodatabaseAsync(syncParams, geodatabase);

// Add listener to check and report on the current sync status

syncJob.addJobChangedListener(new Runnable() {

@Override

public void run() {

// Deal with any errors found while syncing the geodatabase

if (syncJob.getError() != null) {

dealWithException(syncJob.getError());

}

else {

// While job is in progress, review job messages or update progress in logs or user interface...

updateUiWithJobProgress(syncJob);

}

}

});

// Add listener to deal with the completed job

syncJob.addJobDoneListener(new Runnable() {

@Override

public void run() {

// Check the job state is complete, deal with any errors

if ((syncJob.getStatus() != Job.Status.SUCCEEDED) || (syncJob.getError() != null)) {

dealWithException(syncJob.getError());

}

else {

// Get the SyncLayerResults returned from the sync

List<SyncLayerResult> syncResults = (List<SyncLayerResult>) syncJob.getResult();

if (syncResults != null) {

// Check sync results, for example update the UI to inform the user

dealWithSyncResults(syncResults);

}

}

}

});

// Start the Job to sync the geodatabase

 
 安卓智能地图开发与实施一：配置离线SDK - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3304
 安卓智能地图开发与实施二：开发环境准备 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3303
 安卓智能地图开发与实施三：创建第一个地图程序 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3302
 安卓智能地图开发与实施四：二维地图的MapView与Layers - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3305
 安卓智能地图开发与实施五：在线基础底图 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3309
 安卓智能地图开发与实施六：离线基础底图 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3299
 安卓智能地图开发与实施七：在线业务图层（浏览查询） - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3298
 安卓智能地图开发与实施八：离线业务图层（浏览查询） - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3297
 安卓智能地图开发与实施九：地图缩放与旋转 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3296
 安卓智能地图开发与实施十：图层管理 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3295
 安卓智能地图开发与实施十一：业务数据查询 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3294
 安卓智能地图开发与实施十二：空间查询与模糊搜索 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3293
 安卓智能地图开发与实施十三：空间查询与展示 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3308
 安卓智能地图开发与实施十四：业务数据编辑 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3307
 安卓智能地图开发与实施十五：离线与同步 - ArcGIS Runtime SDK for Android（Version 100.0.0） :http://zhihu.esrichina.com.cn/article/3306
 安卓智能地图开发与实施十六：三维地图 - ArcGIS Runtime SDK for Android（Version 100.1.0） :http://zhihu.esrichina.com.cn/article/3289
 安卓智能地图开发与实施十七：使用天地图 - ArcGIS Runtime SDK for Android（Version 100.1.0） :http://zhihu.esrichina.com.cn/article/3288
 安卓智能地图开发与实施十八：空间要素绘制 - ArcGIS Runtime SDK for Android（Version 100.1.0） :http://zhihu.esrichina.com.cn/article/3287
 安卓智能地图开发与实施十九：符号与渲染器 - ArcGIS Runtime SDK for Android（Version 100.1.0） :http://zhihu.esrichina.com.cn/article/3286
文章来源：http://blog.csdn.net/allenlu2008/article/details/73321258