iphone - Setting a navigationbar to be like the photo app -

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i trying set navigation bar see through photos app.

what property used achieve this? have tried available properties navigationbar cant work.

is possible do?

i want view behind navigationbar seen when bar on it.

if using .nib can select navigation bar , set navigation bar style "black translucent" in navigation bar attributes (in inspector).

if adding navigation bar programmatically can set style in viewdidload:

 self.navigationcontroller.navigationbar.barstyle = uibarstyleblacktranslucent;

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