RTEditor/src/main/java/com/onegravity/rteditor/RTManager.java
public void registerEditor(RTEditText editor, boolean useRichTextEditing) {
        mEditors.put(editor.getId(), editor);
        editor.register(this, mRTApi);
        editor.setRichTextEditing(useRichTextEditing, false);

        updateToolbarVisibility();
    }
public void registerEditor(RTEditText editor, boolean useRichTextEditing) {
        mEditors.put(editor.getId(), editor);
        editor.register(this, mRTApi);
        editor.setRichTextEditing(useRichTextEditing, false);

        updateToolbarVisibility();
    }
Register a rich text editor.
<p>
Before using the editor it needs to be registered to an RTManager.
Using means any calls to the editor (setText will fail if the editor isn't registered)!
MUST be called from the ui thread.

@param editor The rich text editor to register.