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iphone - Uiimagepickercontroller, volume overlay not work -
i'm developing app use uiimagepickercontroller. app launches first uiimagepickercontroller source type setted "camera" , user can press tabbar item launch imagepickercontroller source type on "photosavedalbums". works not default volume (the volume can set hardware buttons of iphone),with sourcetype "camera" volume disabled (and there isn't overlay bell) sourcetype "savedphotosalbum" volume works , overlay bell appears. have noticed default behavior of camera app same of application,but @ same time i've seen many others apps permits set volume in imagepickercontroller sourcetype "camera". have tried many hours,i can't found solution. ideas? can't find audio property work!
the solution make visible overlay volume control use avfoundation framework instead of classic uiimagepickercontroller.
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