android - How to get a fullscreen Rectangle with Qt5.2 using qml? -


I am new to coding and Android apps with Qt5.2 while using qm5,

Full screen app back ground rectangle with a full Android device: 

  rectangle {id: fullscreenbackground height :? Width:? ......}   
 It seems that the height or width should be clarified and can not be used to define the percentage.   
 
 
 Change the size of the top-level item to see, use:  
  view.setResizeMode (QQuickView:: SizeRootObjectToView);   
 This overrides any width / height on top-level QML items  
  anchor for non-top-level items. Fill: Parents   
 On Android, setting size modification will be enough, on other platforms, you may have to clearly show the scene:  
  view.showFullscreen ();

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