qt - Changing default values for properties (e.g. asynchronous) -


for many applications, on low-performance machines, beneficial have built-in components, such loader , image, setup load resources asynchronously. this, there 2 obvious options:

  1. set required property of built-in component, i.e. asynchronous: true
  2. create custom component asyncxxx content:

asyncxxx.qml:

xxx {     asynchronous: true }

where xxx either loader or image.

i wonder why not set asynchronous mode default.

most importantly, there way - environment variable, global setting - change default behaviour of built-in components asynchronous one, avoiding custom components?

you make asloader , asimage qml types loader , image asynchronous: true , use throughout project. save on having modify everywhere, , if want override that, go , change in prototype.

i wonder why not set asynchronous mode default.

asynchronous more complicated , more overhead, makes sense if not default behavior. qml code i've seen, synchronous used more asynchronous, make little sense make asynchronous default.

edit:

you achieve switching between synchronous , asynchronous behavior during runtime if bind prototype project-wide property, example context property, or property in main.qml.


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