Load different fonts in QML

The previous loading of different fonts is through Qt Code settings , as follows

QFontDatabase::addApplicationFont("XXXXXX/DroidSansFallback.ttf")

Later, I found that it didn't work very well , It's better to load a font , Loading more than one doesn't seem to work , Read the document later , It is found that there is a special correspondence Qml Components of fonts FontLoader,
FontLoader Explanation
FontLoader Can pass name 、 The local path 、 The Internet url route There are three ways to load fonts .

// By name , Load fonts installed in the system 
FontLoader { 
     id: fixedFont; name: "Courier" }