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Andy Gup 2015-03-27 10:09:25 -06:00
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doc/howtouseeditlibrary.md
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@ -54,7 +54,7 @@ NOTE: You can also monitor standard ArcGIS API for JavaScript layer events using
```
**Step 3** listen for the `layers-add-result` event to continue FeatureLayer initialization. Add the feature layer to the map just like you normally would
**Step 3** listen for the `layers-add-result` event to continue FeatureLayer initialization. Then, add the feature layer to the map just like you normally would
```js
@ -71,7 +71,7 @@ NOTE: You can also monitor standard ArcGIS API for JavaScript layer events using
```
**Step 4** After the `layers-add-result` event fires extend it using the `extend()` method.
**Step 4** After the `layers-add-result` event fires extend it using the `extend()` method. Optionally, if you are building a fully offline app then you will need to set the `dataStore` property in the constructor.
```js
@ -85,11 +85,40 @@ NOTE: You can also monitor standard ArcGIS API for JavaScript layer events using
if(success){
console.log("layer1 has been extended for offline use.");
}
}/*,options */);
}/*, dataStore */);
}
```
The `dataStore` property is an object that is used to store any data related to your app that will assist in restoring the app and any feature layers after a full offline browser restart. The `dataStore` object has one reserved key and that is `id`. If you overwrite the `id` key the application will fail to update the `dataStore` object correctly. Here is an example of one possible `dataStore` object:
```js
var dataStore = {
"featureLayerJSON": featureLayer.toJson(),
"zoom": map.getZoom(),
"centerPt": (map.extent.getCenter()).toJson()
}
```
You can then retrieve this data after an offline restart by using the following pattern:
```js
featureLayer.getFeatureLayerJSONDataStore(function(success, dataStore){
if(success){
myFeatureLayer = new
FeatureLayer(JSON.parse(dataStore.featureLayerCollection),{
mode: FeatureLayer.MODE_SNAPSHOT,
outFields: ["GlobalID","BSID","ROUTES","STOPNAME"]
});
}
});
```
**Step 5** Once a layer has been extended the offline library will enable it with new methods. Here are a few examples that include code snippets of how to take advantage of some of the library's methods. You can also use a combination of methods from `editsStore` and `offlineFeaturesManager`.
####offlineFeaturesManager.proxyPath