In this section we return to the Canvas User Interface and explore more of its features.Start by clicking on the 2 WebViews icon on the Homescreenthe Canvas UI features, in particular relating to layers and sessions.
We are continuing from the previous section, which has one WebView layer already created.
Pinned Layers
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On the Canvas Toolbar, select Layers > Layer1 the first layer in the Layers dropdown and then select Pin Layer.
Layer1 The layer is now a pinned layer and this stops it from being removed when the Home button is pressed or a new session is started.
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A button is dynamically added to the canvas toolbar for each pinned layer. The button will perform two operations on acts as toggle to either Show the layer : Show and Bring to Front or Hide the layer and Send to Back.
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Removing Layers
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On the canvas toolbar, select Layers > Layer2 and then select Delete Layer.
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