Android SurfaceView Preview Blurry -

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i have quick question. i'm using android's surfaceview take picture , save it. however, preview size , picture quality both terrible; in, blurry. there's no sharpness picture quality @ all.

here's initialize surfaceview:

                    camera.setdisplayorientation(90);                     parameters parameters = camera.getparameters();                     parameters.setwhitebalance(camera.parameters.white_balance_auto);                     parameters.setexposurecompensation(0);                     parameters.setpictureformat(imageformat.jpeg);                     parameters.setjpegquality(100);                      camera.size picsize =   getoptimalpreviewsize(parameters.getsupportedpreviewsizes(),                             getresources().getdisplaymetrics().widthpixels,                              getresources().getdisplaymetrics().heightpixels);                      parameters.setpicturesize(picsize.width, picsize.height);                     parameters.setpreviewsize(picsize.width, picsize.height);                      camera.setparameters(parameters);                     camera.setpreviewdisplay(holder);                     camera.startpreview();

the getoptimalpreviewsize() returns best size available parameters.getsupportedpreviewsizes(). size returns 1280x720, best size phone support. however, surfaceview still blurry. there wrong i'm doing, or there way optimize surfaceview? thanks.

there 2 reason why image , preview may appear blurry

1) way settings picture size , preview size wrong. have query supported sizes , decide best size , set size list have got. cannot give arbit values. check sample app implementation details - https://github.com/josnidhin/android-camera-example

2) have put camera in auto foucs mode focus automatically. (better implement touch focus proper ui). once camera starts set below

private void setcamfocusmode(){      if(null == mcamera) {         return;      }      /* set auto focus */      parameters parameters = mcamera.getparameters();     list<string>    focusmodes = parameters.getsupportedfocusmodes();     if(focusmodes.contains(camera.parameters.focus_mode_continuous_picture)){         parameters.setfocusmode(camera.parameters.focus_mode_continuous_picture);        } else      if(focusmodes.contains(camera.parameters.focus_mode_auto)){         parameters.setfocusmode(camera.parameters.focus_mode_auto);     }         mcamera.setparameters(parameters); }

make sure have proper permission in manifest

hope helps

regards, shrish


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