iphone - What does the runtime warning "This will cause the effect to appear broken until opacity returns to 1" when setting UIVisualEffectView alpha mean? -



iphone - What does the runtime warning "This will cause the effect to appear broken until opacity returns to 1" when setting UIVisualEffectView alpha mean? -

i have prototype cell , set uivisualeffectview within contentview. visual effect view's blur style dark , vibrancy off. set alpha of visual effect view 0,5 using ib.

then on runtime, warning says:

<uivisualeffectview ...> beingness asked animate opacity. cause effect appear broken until opacity returns 1.

i couldn't understand why warning there , how can set alpha property properly.

as far can remember cannot alter alpha of visual effect view. alpha has one.

iphone ios8 uiblureffect uivisualeffectview

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