MapView | (Deprecated, prefer https://github.com/moagrius/TileView) Android widget roughly described as a hybr | Android library
kandi X-RAY | MapView Summary
kandi X-RAY | MapView Summary
The MapView widget is a subclass of ViewGroup that provides a mechanism to asynchronously display tile-based images, with additional functionality for 2D dragging, flinging, pinch or double-tap to zoom, adding overlaying Views (markers), multiple levels of detail, and support for faux-geolocation (by specifying top-left and bottom-right coordinates). It might be best described as a hybrid of com.google.android.maps.MapView and iOS's CATiledLayer, and is appropriate for a variety of uses but was intended for map-type applications, especially high-detail or custom implementations (e.g., inside a building).
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Top functions reviewed by kandi - BETA
- Handles a touch event
- Start scrolling
- Set the scale of the layout
- Processes a finger event
- Starts the rendering thread
- Adds a bitmap to the disk cache
- Decode the bitmap cache
- Get a bitmap from disk cache
- Returns true if the coordinate contains the given coordinate
- Sets the layout of all children
- Starts the animation
- Get a list of coordinates from a list of points
- Translate a list of coordinates to a list of points
- Computes the scroll to the specified destination
- This method is used to measure the dimensions of the image
- Download a bitmap from a URL
- Measure width and height
- measure width and height
- Called when the tile has been updated
- Override this method to apply on layout params
- Calculate the dimensions of the view
- Called when the layout has been changed
- Supports view and adds it to the pool
- Handle the scroll event
- Remove a given view
- Ensures that the distance between the scale start and the current screen and the scale should be measured
MapView Key Features
MapView Examples and Code Snippets
Community Discussions
Trending Discussions on MapView
QUESTION
I created a json using google maps styling wizard. I then set that to a const under render and set that const to my MapView style but it renderers nothing when I do.
I am not sure the issue, Ideally I would like to have the style in a separate file but I was trying to start small.
How can I fix the current issue I am having as well as import and use the style from a separate file?
Here is a snack of my code that reproduces my exact error as well as the code below.
...ANSWER
Answered 2022-Mar-23 at 17:44The custom google maps styling must be passed to the customMapStyle prop and you need to set a specific width and height in the normal style prop of the MapView. Setting absoluteFillObject does something different than you might have thought and according to the react-native documentation there is
Currently, there is no difference between using absoluteFill vs. absoluteFillObject.
Thus, absoluteFill is for the following use case.
A very common pattern is to create overlays with position absolute and zero positioning (position: 'absolute', left: 0, right: 0, top: 0, bottom: 0), so absoluteFill can be used for convenience and to reduce duplication of these repeated styles.
This will not set a height and a width! We need to do this manually which is documented here.
The following solves your problem.
QUESTION
I have no idea where to begin.
Here's the documentation: https://openweathermap.org/api/weathermaps
Following that, and searching what I could online I tried the following, but it gives me a fatal error and never goes past that. (Note: I'm not sure what to put for the z, x, and y values either, so I left them, in addition to my API Key, blank here, but in my code I just put 1/1/1) My attempt, inserting temp_new to receive the temperature overlay:
...ANSWER
Answered 2022-Mar-16 at 03:35Okay so I finally got it thanks to this tutorial:
https://www.raywenderlich.com/9956648-mapkit-tutorial-overlay-views#toc-anchor-003
I'll try to do my best to explain everything here the best I can, I copied a bunch of the code from Ray's website so I don't understand everything 100%. That being said, the main meat of what needs to be done is to layout the coordinates for the overlay. This was done in a custom class. The idea here is to parse coordinate data which was written in a plist in a Dictionary. For my project this was easy because I simply had to set the maximum coordinates for the Earth ((90, 180), (90, -180), (-90, -180), (-90, 180)). The mid coordinate only worked when I set it as (100, 0), not sure why, but the full code for parsing the plist is below.
QUESTION
I am trying to use the new mapbox for android v10 with specifically the new 3d terrain feature. All the examples are in Kotlin, I have followed the online guide below but I keep running into the same error message.
Online example:
...ANSWER
Answered 2021-Nov-10 at 15:54mapboxMap.loadStyle(
styleExtension = style(Style.SATELLITE_STREETS) {
+rasterDemSource("TERRAIN_SOURCE") {
url("mapbox://mapbox.mapbox-terrain-dem-v1")
}
+terrain("TERRAIN_SOURCE") {
exaggeration(1.1)
}
)
QUESTION
I have a large set of coordinates from the critical and endangered habit federal registry. I'm trying to digitize these maps for analysis. Here's a sample of the data as an example.
...ANSWER
Answered 2022-Mar-05 at 13:42As a follow-up to your comment, I have prepared a reprex so that you can test the code. It should work...
If it doesn't work, here are some suggestions:
- Make sure all your libraries are up to date, especially
tidyverse,mapviewandsf. On my side, I run the code with the following versions:tidyverse 1.3.1,mapview 2.10.0andsf 1.0.6 - Close all open documents in your R session and close R. Reopen a new R session and open only the file that contains the code to test.
- Load only the libraries needed to run the code.
Hope this helps. I'm crossing my fingers that these suggestions will unstuck you.
Reprex
- Your data
QUESTION
I am trying to build an app that shows some areas(polygons/overlays) on the map and when a polygon is tapped I would like to print on console print("Polygon \(zone_id) has been tapped"). The polygons are rendered from a GeoJSON file where we can also find the zone_id in the properties feature. So far I rendered the overlays on the map but I am stuck and I appreciate some guidance where to go from here.
I will paste my code that I have so far and also a snippet of the GeoJSON file.
...ANSWER
Answered 2022-Mar-04 at 09:24Ok, I found a solution if anyone else will ever need it.
- I added a UITapGestureRecognizer to my map view instance.
- I used the MKMapView's convert(_:toCoordinateFrom:) to convert the touch point to the map coordinates
- I created a MKMapPoint from that coordinate and checked if the MKPolygon renderer path contains the point
- For the MKPolygon, being a MKShape after all, I used the .title property to assign my zone_id value parsed from the GeoJSON.
So I was able to identify which polygon was tapped.
QUESTION
I am trying to create several leaflet maps based on what the user select. I tried to produce a reproducible example. I have a sf with four shapes (i.e., representing four counties in NC). The user can choose to plot one to four maps based on the choice of the county (made through the "checkboxGroupInput". If the user select one county, I should plot one map representing the county the user selected. If the user selected two counties, two maps should be plotted, etc.
I got several lines of code but I could not connect the user selection to my map. Below you can find what I tried to do. Thanks for any help.
...ANSWER
Answered 2022-Feb-25 at 22:47Interesting question. I would use a rather different approach to get the job done. Instead of creatign that many conditional panels, I would write a function that creates a collection of columns depending on the number of counties selected.
QUESTION
I have a map of markers that renders each marker in an array of coordinates. I am trying to render markers conditionally based on a key I give the marker. You can see exactly how I am trying to do this by looking at my snack example here or I have posted the code below.
Thank you, I appreciate it more than you know.
...ANSWER
Answered 2022-Feb-13 at 10:27You're not using correct JSX syntax. You can't use if-then-else, use ternary operator instead.
QUESTION
I'm trying to get a simple map as my mainActivity to test how maps with compose works. Unfortunately I just fail at the beginning with an Errormessage which says basically nothing but "IllegalStateException". I've tried to extract the map code from the original Google example here: https://github.com/android/compose-samples/tree/main/Crane I've tried to rebuild a simple Composable, made an API Key at Google Cloud Platform and added it to my manifest.
Thats the MainActivity:
ANSWER
Answered 2021-Nov-14 at 18:43I don't know if you are reading this, but you have forgotten to include ON_START event for lifecycle, so you are throwing the exception. Also you are calling onStart on ON_CREATE.
Also consider populating the lifecycleObserver to be scoped into the DisposableEffect and make the DisposableEffect also aware of the mapView (give it as an argument).
QUESTION
ANSWER
Answered 2022-Feb-01 at 20:24I found the solution. Originally I had the CGRect for the mapView frame in viewDidLayoutSubviews():
QUESTION
I have a code like that:
...ANSWER
Answered 2022-Jan-18 at 08:48The moveTo method belongs to Camera object. ref.
I don't have the environment setuped to test. The code will look something like this:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install MapView
You can use MapView like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the MapView component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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