Creates a new AppInfo from the given information.
Note that for
commandline, the quoting rules of the Exec key of the
freedesktop.org Desktop Entry Specification are applied. For
example, if the
commandline contains percent-encoded URIs, the percent-character must be doubled in order to prevent it from being
swallowed by Exec key unquoting. See the specification for exact quoting rules.
the commandline to use
the application name, or null to use
flags that can specify details of the created AppInfo
new AppInfo for given command.