Working fine for me. Double tap a spot on the map, and then: Drag down to zoom in. Further, I know the radius of the circle that needs to be visible. When the user zooms out, the markers gather together into clusters, to make viewing the map easier. It should be zero or greater. On your Android phone or tablet, open the Google Maps app . Move the map. Maps on Google Maps have an integer 'zoom level' which defines the resolution of the current view. UI controls. You can move around the map with one hand. The second one should be 2*PI*R*cosine(LATinRadian). Radius The radius of the circle, specified in meters. To achieve this we have used transparent image view over the map to zoom in & zoom out and get touch event of the map. Zoom in the map. For details, see the guide to lite mode. Drag up to zoom out. For details, see the documentation on the Google Maps Android Marker Clustering Utility. In lite mode, users cannot pan or zoom the map and gestures do not work. On your Android phone or tablet, open the Google Maps app . You can zoom in and out of the map with one hand. This wikiHow teaches you how to zoom in for a closer look in Google Maps on your Android. Lite mode offers a bitmap image of a map at a specified location and zoom level. The width is constant and independent of the camera's zoom level. Stroke Color The color of the circle outline in ARGB format, the same format used by Color. It's the map icon with a white "G" and red pushpin. You'll usually find it in the app drawer. When changing the camera position for a map, the zoom level of the camera is restricted to a certain range depending on various factors including location, map type and map size. The Maps API offers built-in UI controls that are similar to those found in the Google Maps application on your Android phone. So while user scales it from any X,Y position that will call onCameraChangeListner .Now we will calculate zoom level inside onCameraChangeListner and set customer marker to the center of the screen. Zoom Levels. When a user views the map at a high zoom level, the individual markers show on the map. The info you found for OSM should be applicable to Google Maps as well. Open Google Maps on your Android. The marker clustering utility is part of the Maps SDK for Android Utility Library. It's basically find two things: 1) how many horizontal pixel (for global) at zoom level Z? So zoom level 14 is a 1 mile radius search, that’s nice, what about 15, 16, 13, 12, … Well from the google documentation we know we have a geometric series: Maps on Google Maps have an integer “zoom level” which defines the resolution of the current view. and 2) how many meters (for global) at latitude LAT? (3) Setting max zoom level in google maps android api v2 (4) Android map v2 zoom to show all the markers (5) Adjusting google map (api v2) zoom level in android (6) Set a max zoom level on LatLngBounds builder (7) android Zoom-to-Fit All Markers on Google Map v2 When the user zooms out to a lower zoom level, the markers gather together into clusters, to make viewing the map easier. Hence at zoom level N, the width of the world is approximately 256 * 2 N dp, i.e., at zoom level 2, the whole world is approximately 1024dp wide. Stroke Width The width of the circle's outline in screen pixels. R is earth radius in meters as a sphere. Zoom levels between 0 (the lowest zoom level, in which the entire world can be seen on one map) and 21+ (down to streets and individual buildings) are possible within the default roadmap view. The first one is basically 256x2^Z. android - fit - google maps set zoom level to show all markers ... 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