android - Is it OK to use "mContext" (initialized at onCreate)? -

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is bad habit, , why if is? in every activity adding right after oncreate...

mcontext = this;

and use in other cases context required? example

toast.maketext(mcontext, mcontext.getstring(r.string.somestring), toast.length_long);

edit: if have this...how context should passed? because this cannot applied (because of view.onclicklistener()).

somebutton = (button) findviewbyid(r.id.somebutton); somebutton.setonclicklistener(new view.onclicklistener() {     @override     public void onclick(view v) {         toast.maketext(mcontext, mcontext.getstring(r.string.warning), toast.length_long).show();     } });

is bad habit, , why if is?

yes, bad habit. waste of code. this shorter mcontext, , have line of code setting data member.

i disagree mr. damiean's suggestion of using getapplication(). use getapplication() when need application object. neither need nor want application object creating toast -- activity suitable context use there. application object fails work in many places, particularly when dealing things involving ui.


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