resolve Thumbnail
abstract fun resolveThumbnail( contentUrl: String?, width: Int, height: Int, method: ContentUrlResolver.ThumbnailMethod): String?
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Get the actual URL for accessing the thumbnail image of a given Matrix media content URI.
Return
the URL to access the described resource, or null if the url is invalid.
Parameters
content Url
the Matrix media content URI (in the form of "mxc://...").
width
the desired width
height
the desired height
method
the desired method (METHOD_CROP or METHOD_SCALE)