Swithing on the camera Flash light dynamically in android -



Swithing on the camera Flash light dynamically in android -

all

i doing barcode scanning app in android.in have turn on photographic camera flash lite dynamically , doing using next code

mcamera = camera.open(); camera.parameters params = mcamera.getparameters(); params.setflashmode(camera.parameters.flash_mode_torch); mcamera.setparameters(params); mcamera.startpreview();

but showing exception like

error/androidruntime(17291): java.lang.runtimeexception: fail connect photographic camera service

at line

mcamera = camera.open();

i think exception because of while scanning barcode photographic camera in open mode , here trying open photographic camera again.

is there way turn on flash lite without open photographic camera 1 time again ? , how?

you can reuse existing photographic camera object , setparameters on that. note not devices back upwards flash mode torch. some, fascinate/epic (who utilize flash mode on) cannot alter state without disconnecting , reconnecting camera.

android camera flashlight

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