MimeTypeMap | API reference | Android Developers

public class MimeTypeMap
extends Object

Two-way map that maps MIME-types to file extensions and vice versa.

See also URLConnection.guessContentTypeFromName(String) and URLConnection.guessContentTypeFromStream(InputStream). This class and URLConnection share the same MIME-type database.

Summary

Public methods
`String`	`getExtensionFromMimeType(String mimeType)` Return the registered extension for the given MIME type.
`static String`	`getFileExtensionFromUrl(String url)` Returns the file extension or an empty string if there is no extension.
`String`	`getMimeTypeFromExtension(String extension)` Return the MIME type for the given extension.
`static MimeTypeMap`	`getSingleton()` Get the singleton instance of MimeTypeMap.
`boolean`	`hasExtension(String extension)` Return `true` if the given extension has a registered MIME type.
`boolean`	`hasMimeType(String mimeType)` Return `true` if the given MIME type has an entry in the map.

Inherited methods

From class java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public methods

getExtensionFromMimeType

public String getExtensionFromMimeType (String mimeType)

Return the registered extension for the given MIME type. Note that some MIME types map to multiple extensions. This call will return the most common extension for the given MIME type.

Parameters
`mimeType`	`String`: A MIME type (i.e. text/plain)

Returns
`String`	The extension for the given MIME type or `null` if there is none.

getFileExtensionFromUrl

public static String getFileExtensionFromUrl (String url)

Returns the file extension or an empty string if there is no extension. This method is a convenience method for obtaining the extension of a url and has undefined results for other Strings.

Returns
`String`	The file extension of the given url.

getMimeTypeFromExtension

public String getMimeTypeFromExtension (String extension)

Return the MIME type for the given extension.

Parameters
`extension`	`String`: A file extension without the leading '.'

Returns
`String`	The MIME type for the given extension or `null` if there is none.

getSingleton

public static MimeTypeMap getSingleton ()

Get the singleton instance of MimeTypeMap.

Returns
`MimeTypeMap`	The singleton instance of the MIME-type map.

hasExtension

public boolean hasExtension (String extension)

Return true if the given extension has a registered MIME type.

Parameters
`extension`	`String`: A file extension without the leading '.'

Returns
`boolean`	`true` if there is an extension entry in the map.

hasMimeType

public boolean hasMimeType (String mimeType)

Return true if the given MIME type has an entry in the map.

Parameters
`mimeType`	`String`: A MIME type (i.e. text/plain)

Returns
`boolean`	`true` if there is a mimeType entry in the map.

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