Release 4.0.1 · CartoDB/mobile-sdk

This is a maintenance release for 4.0 that includes several important reliability and performance fixes, in addition to some minor new features.

New features and changes

Added Layer visibility control API to CartoVectorTileDecoder (setLayerVisible, isLayerVisible methods)
Implemented 'screen' and ‘clear’ comp-op support for CartoCSS/vector tile rendering
Rendering of vector tile layers with multiple line/polygon symbolisers is now optimized as a special case, this is usually done with a single draw call
Changed moveToFitBounds behaviour - from now SDK does not change zoom level if single point is used for MapBounds
Better error reporting for CARTO SQL API, including error logging and error parsing
Minor optimizations in vector tile renderer
implemented timeout for online license update procedure
forward-compatible changes for future features in online tile service and offline packages
Exposed CartoVectorTileDecoder constructor for better integration with CARTO vector overlays
Added additional CartoOnlineVectorTile constructor with explicit source and built-in style enumeration parameters
Added countVisibleFeatures method to TorqueTileLayer
Added comp-op support to points, markers, texts and shields
Increased internal visible tile cache size by 4x, for really large overlay datasets (does not affect memory usage in normal cases)
MBTilesDataSource and OfflineNMLModelLODTreeDataSource classes now open database in read-only mode (previously in read-write mode)
More precise label coverage analysis for transformed labels

Fixed Torque tile usage in MapsService API due to malformed URL
Fixed deadlock with indirect texts fields in Text and BalloonPopup objects
Fixed feature batching related issue in vector tile renderer that caused high number of draw calls and low performance
Fixed 'multiply' comp-op handling with non-opaque alpha values
Fixed parameter name typo in CartoCSS (instead of 'polygon-pattern-comp-op', 'polygon-pattern-op' was used)
fixed performance issue on iOS with empty Text objects
CartoCSS compatibility fixes for handling negative line widths and marker sizes
minor memory usage, speed optimizations
Added missing NTCartoVectorTileDecoder to iOS umbrella header
Fixed CartoVectorTileDecoder layer ordering issues
Fixed regression regarding VisJSON vector sublayer grouping; visibility and attribute info was previously lost
Fixed handling of zero size ellipse markers in CartoCSS
Fixed vector tile click detection issues
Fixed rare cases on iOS when screen remained black after returning from background state
Heavily distorted texts are no longer displayed on the map
Fixed bad_weak_ptr exception when using PersistentCacheTileDataSource
Fixed crash with some Xamarin Android versions when MapView finalizer is called
Fixed license registration issues on Windows Phone targets
Fixed vector tile layers in layergroup ignoring 'visibility' attribute
Fixed billboard sorting issues causing flickering with overlapping markers/texts/popups
Implemented clamping for CartoCSS opacity values for better compatibility