Closing FrameLayout for a Fragment in Android App -


i'm working on simple android app self-learning project. i've got lot of functioning, , have main activity has framelayout , recyclerview , floatingactionbutton stuff going on inside of it.

however, want make 1 of buttons in navigationdrawer open different view in framelayout using fragments. there way this, sort of making new fragment recyclerview , other stuff , putting recyclerview , floatingactionbutton in there?

i tried doing (when appropriate navigationdrawer button clicked):

statsfragment = new statsfragment();         fragmenttransaction transaction = getsupportfragmentmanager().begintransaction();         transaction.replace(r.id.rootlayout, statsfragment);         transaction.addtobackstack(null);         transaction.commit();

but caused app crash. pointers?

is r.id.rootlayout layout or fragment component?

if main activity has hard coded fragment (by hard coded mean declared in xml), no, can't change hard-coded fragment content fragmenttransaction. more information on this question's answer.

finally, can't put components 1 activity inside new fragment/activity since each component belongs 1 , only one context. see, activity extends context. when reference component declared in xml using activity.findviewbyid(int), making pointer determined view activity's layout, defined in oncreatemethod setcontentview(id). can't take pointer , throw fragment or activity within application without expecting problems. (well, maybe can, it's totally against best practices of android programming).


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