URL schema is used as an identifier in launching applications and performing a set of commands in iOS devices. The schema name of a URL is the first part of a URL. (e.g. schemaname:// ).
For web pages, the schemas are usually http or https.
iOS supports these URL schemas:
- http, https, ftp - Web links on Browser app.
- mailto - E-mail links that launches the Mail app.
- tel - Telephone Numbers that launches the phone app.
- sms - Text Messages that launches the SMS app for iPhones.
URL Schemas are used to launch an application from either a browser or from another application on your iPhone or iPad.
iOS application developers can specify and register their own custom URL schemas.
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