Android screen flash when removeView -


i have activity , several fragments. 1 fragment, want disable screenshot function. in oncreate function, set flags window, found doesn't work. maybe system needs reload window. try remove current window , add back. work, find screen black 1 second. how can solve screen flash problem? oncreate fragment. can't set flag in activity since disable screenshot fragments.

public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     if (build.version.sdk_int >= build.version_codes.honeycomb) {         getactivity().getwindow().setflags(layoutparams.flag_secure, layoutparams.flag_secure);         window window = getactivity().getwindow();         windowmanager wm = getactivity().getwindowmanager();         wm.removeviewimmediate(window.getdecorview());         wm.addview(window.getdecorview(), window.getattributes());      } }

i believe correct need set flag before setcontentview(...) on activity, otherwise 1 thing can try using getactivity().recreate() after setting flag_secure


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