Class MapControl

Inheritance
object
Object
View
ViewGroup
MapControl
Implements
Inherited Members
Namespace: Mapsui.UI.Android
Assembly: Mapsui.UI.Android.dll
Syntax
public class MapControl : ViewGroup, Drawable.ICallback, IAccessibilityEventSource, KeyEvent.ICallback, IViewManager, IViewParent, IJavaObject, IJavaPeerable, IMapControl, INotifyPropertyChanged, IDisposable

Constructors

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MapControl(Context, IAttributeSet)

Declaration
public MapControl(Context context, IAttributeSet attrs)
Parameters
Type Name Description
Context context
IAttributeSet attrs
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MapControl(Context, IAttributeSet, int)

Declaration
public MapControl(Context context, IAttributeSet attrs, int defStyle)
Parameters
Type Name Description
Context context
IAttributeSet attrs
int defStyle

Properties

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Map

Map holding data for which is shown in this MapControl

Declaration
public Map Map { get; set; }
Property Value
Type Description
Map
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MaxTapGestureMovement

The movement allowed between a touch down and touch up in a touch gestures in device independent pixels.

Declaration
public int MaxTapGestureMovement { get; set; }
Property Value
Type Description
int
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RenderMode

Declaration
public SkiaRenderMode RenderMode { get; set; }
Property Value
Type Description
SkiaRenderMode
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UseFling

Use fling gesture to move the map. Default is true. Fling means that the map will continue to move for a short time after the user has lifted the finger.

Declaration
public bool UseFling { get; set; }
Property Value
Type Description
bool

Methods

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Dispose(bool)

To be added.

Declaration
protected override void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing

To be added.
Overrides
Remarks

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

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ForceUpdate()

Force a update of control

Declaration
public void ForceUpdate()
Remarks

When this function is called, the control draws itself once

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GetMapInfo(ScreenPosition, IEnumerable<ILayer>)

Check, if a feature at a given screen position is hit.

Declaration
public MapInfo GetMapInfo(ScreenPosition screenPosition, IEnumerable<ILayer> layers)
Parameters
Type Name Description
ScreenPosition screenPosition

Screen position to check for widgets and features.
IEnumerable<ILayer> layers

The layers to query.
Returns
Type Description
MapInfo
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GetPixelDensity()

Returns the number of pixels per device independent unit

Declaration
public float? GetPixelDensity()
Returns
Type Description
float?
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GetRemoteMapInfoAsync(ScreenPosition, Viewport, IEnumerable<ILayer>)

Declaration
protected Task<MapInfo> GetRemoteMapInfoAsync(ScreenPosition screenPosition, Viewport viewport, IEnumerable<ILayer> layers)
Parameters
Type Name Description
ScreenPosition screenPosition
Viewport viewport
IEnumerable<ILayer> layers
Returns
Type Description
Task<MapInfo>
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GetSnapshot(IEnumerable<ILayer>?, RenderFormat, int)

Create a snapshot form map as PNG image

Declaration
public byte[] GetSnapshot(IEnumerable<ILayer>? layers = null, RenderFormat renderFormat = RenderFormat.Png, int quality = 100)
Parameters
Type Name Description
IEnumerable<ILayer> layers

Layers that should be included in snapshot
RenderFormat renderFormat

render format
int quality

default quality is 90 is applicable for webp and jpg
Returns
Type Description
byte[]

Byte array with snapshot in png format. If there are any problems than returns null.
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InvalidateCanvas()

Declaration
public void InvalidateCanvas()
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MapControl_Touch(object?, TouchEventArgs)

Declaration
public void MapControl_Touch(object? sender, View.TouchEventArgs args)
Parameters
Type Name Description
object sender
View.TouchEventArgs args
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OnLayout(bool, int, int, int, int)

Called from layout when this view should assign a size and position to each of its children.

Declaration
protected override void OnLayout(bool changed, int l, int t, int r, int b)
Parameters
Type Name Description
bool changed

This is a new size or position for this view
int l

Left position, relative to parent
int t

Top position, relative to parent
int r

Right position, relative to parent
int b

Bottom position, relative to parent
Overrides
Remarks

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

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OnMapInfo(MapInfoEventArgs)

Declaration
protected void OnMapInfo(MapInfoEventArgs mapInfoEventArgs)
Parameters
Type Name Description
MapInfoEventArgs mapInfoEventArgs
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OnMapPointerMoved(ScreenPosition, MPoint, GestureType)

Declaration
protected virtual bool OnMapPointerMoved(ScreenPosition screenPosition, MPoint worldPosition, GestureType gestureType)
Parameters
Type Name Description
ScreenPosition screenPosition
MPoint worldPosition
GestureType gestureType
Returns
Type Description
bool
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OnMapPointerPressed(ScreenPosition, MPoint)

Declaration
protected virtual bool OnMapPointerPressed(ScreenPosition screenPosition, MPoint worldPosition)
Parameters
Type Name Description
ScreenPosition screenPosition
MPoint worldPosition
Returns
Type Description
bool
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OnMapPointerReleased(ScreenPosition, MPoint)

Declaration
protected virtual bool OnMapPointerReleased(ScreenPosition screenPosition, MPoint worldPosition)
Parameters
Type Name Description
ScreenPosition screenPosition
MPoint worldPosition
Returns
Type Description
bool
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OnMapTapped(ScreenPosition, MPoint, GestureType)

Declaration
protected virtual bool OnMapTapped(ScreenPosition screenPosition, MPoint worldPosition, GestureType gestureType)
Parameters
Type Name Description
ScreenPosition screenPosition
MPoint worldPosition
GestureType gestureType
Returns
Type Description
bool
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OnPropertyChanged(string)

Declaration
protected void OnPropertyChanged(string propertyName = "")
Parameters
Type Name Description
string propertyName
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OnSizeChanged(int, int, int, int)

This is called during layout when the size of this view has changed.

Declaration
protected override void OnSizeChanged(int width, int height, int oldWidth, int oldHeight)
Parameters
Type Name Description
int width
int height
int oldWidth
int oldHeight
Overrides
Remarks

Java documentation for 

android.view.View.onSizeChanged(int, int, int, int)
.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

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OpenInBrowser(string)

Declaration
public void OpenInBrowser(string url)
Parameters
Type Name Description
string url
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Refresh(ChangeType)

Declaration
public void Refresh(ChangeType changeType = ChangeType.Discrete)
Parameters
Type Name Description
ChangeType changeType
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RefreshData(ChangeType)

Refresh data of Map, but don't paint it

Declaration
public void RefreshData(ChangeType changeType = ChangeType.Discrete)
Parameters
Type Name Description
ChangeType changeType
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RefreshGraphics()

Declaration
public void RefreshGraphics()
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SetMapRenderer(IMapRenderer)

Declaration
public void SetMapRenderer(IMapRenderer mapRenderer)
Parameters
Type Name Description
IMapRenderer mapRenderer
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Unsubscribe()

Unsubscribe from map events

Declaration
public void Unsubscribe()

Events

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Info

Called whenever the map is clicked. The MapInfoEventArgs contain the features that were hit in the layers that have IsMapInfoLayer set to true.

Declaration
public event EventHandler<MapInfoEventArgs>? Info
Event Type
Type Description
EventHandler<MapInfoEventArgs>
Remarks

The Map.Tapped event is preferred over the Info event. This event is kept for backwards compatibility.

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MapPointerMoved

Event that is triggered when on pointer move. Can be a drag or hover.

Declaration
public event EventHandler<MapEventArgs>? MapPointerMoved
Event Type
Type Description
EventHandler<MapEventArgs>
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MapPointerPressed

Event that is triggered when on pointer down.

Declaration
public event EventHandler<MapEventArgs>? MapPointerPressed
Event Type
Type Description
EventHandler<MapEventArgs>
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MapPointerReleased

Event that is triggered when on pointer up.

Declaration
public event EventHandler<MapEventArgs>? MapPointerReleased
Event Type
Type Description
EventHandler<MapEventArgs>
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MapTapped

Event that is triggered when the map is tapped. Can be a single tap, double tap or long press.

Declaration
public event EventHandler<MapEventArgs>? MapTapped
Event Type
Type Description
EventHandler<MapEventArgs>
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PropertyChanged

Called whenever a property is changed

Declaration
public event PropertyChangedEventHandler? PropertyChanged
Event Type
Type Description
PropertyChangedEventHandler

Implements

Extension Methods