Android: Added the ability to associate a particular file-extension to a mime-type at runtime

modules/juce_core/files/juce_common_MimeTypes.h

@@ -31,6 +31,9 @@ namespace juce
 namespace MimeTypeTable
 {
 
+/*  @internal */
+void registerCustomMimeTypeForFileExtension (const String& mimeType, const String& fileExtension);
+
 /*  @internal */
 StringArray getMimeTypesForFileExtension (const String& fileExtension);
 

modules/juce_gui_basics/filebrowser/juce_FileChooser.cpp

@@ -270,6 +270,13 @@ void FileChooser::finished (const Array<URL>& asyncResults)
          callback (*this);
 }
 
+#if ! JUCE_ANDROID
+void FileChooser::registerCustomMimeTypeForFileExtension ([[maybe_unused]] const String& mimeType,
+                                                          [[maybe_unused]] const String& fileExtension)
+{
+}
+#endif
+
 //==============================================================================
 FilePreviewComponent::FilePreviewComponent() {}
 FilePreviewComponent::~FilePreviewComponent() {}

modules/juce_gui_basics/filebrowser/juce_FileChooser.h

@@ -293,6 +293,19 @@ public:
     */
     static bool isPlatformDialogAvailable();
 
+    /** Associate a particular file-extension to a mime-type
+
+        On Android, JUCE needs to convert common file extensions to mime-types when using
+        wildcard filters in native file chooser dialog boxes. JUCE has an extensive conversion
+        table to convert between the most common file-types and mime-types transparently, but
+        some more obscure file-types may be missing. Use this method to register your own
+        mime-type to file extension conversions. Please contact the JUCE team if you think
+        that a common mime-type/file-extension entry is missing in JUCE's internal tables.
+        Does nothing on other platforms.
+    */
+    static void registerCustomMimeTypeForFileExtension (const String& mimeType,
+                                                        const String& fileExtension);
+
     //==============================================================================
    #ifndef DOXYGEN
     class Native;

modules/juce_gui_basics/native/juce_android_FileChooser.cpp

@@ -277,4 +277,10 @@ bool FileChooser::isPlatformDialogAvailable()
    #endif
 }
 
+void FileChooser::registerCustomMimeTypeForFileExtension (const String& mimeType,
+                                                          const String& fileExtension)
+{
+    MimeTypeTable::registerCustomMimeTypeForFileExtension (mimeType, fileExtension);
+}
+
 } // namespace juce