android - Using CollapsingToolbarLayout setCollapseMode -


i trying set collapsemode of new collapsingtoolbarlayout

i can create new params child , can assign it. not change layout_scrollflags think need edit.

collapsingtoolbarlayout.layoutparams mparams = new collapsingtoolbarlayout.layoutparams(mcollapsing.getlayoutparams()); mparams.setcollapsemode(collapsingtoolbarlayout.layoutparams.collapse_mode_off); mcollapsing.getchildat(0).setlayoutparams(mparams);

so turn on , off scroll mode.

has done yet?

after few hours of playing this.

turns out layout_scrollflags layoutparams in appbarlayout class.

you can current flags using

appbarlayout.layoutparams mparams = (appbarlayout.layoutparams) abbar.getchildat(0).getlayoutparams(); int currentscrollflags = mparams.getscrollflags();

this means can turn off using

 mparams.setscrollflags(0);

some may ask why, need user make selection in view bellow, once has happened turn flag 3, scroll|exituntilcollapsed can use 

appbarlayout.layoutparams.scroll_flag_enter_always appbarlayout.layoutparams.scroll_flag_exit_until_collapsed appbarlayout.layoutparams.scroll_flag_enter_always appbarlayout.layoutparams.scroll_flag_enter_always_collapsed

hope helps someone.


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