HANDLING BACK BUTTON

[iC00kScripts]

It's a nice sample you have here bro... Well done.. So I noticed a few things.

First, you didn't handle back button for the fragment; so how would you go about it?

Also, In a situation where there's a deep nesting of fragments, for instance, you have extra two fragments; not on the bottom navigation but is called on click of a button in any of the fragments. How would you handle that? as well as in addition to a back button.

I'm asking cos I'm currently experiencing a nasty bug and wouldn't like to venture into maintaining a complicated fragment stack. Thanks

[bukunmialuko]

Hi bro, most often i override my onBackPressed to initially tell the user to press back once again to close the app (via toast message).
If you have complicated nesting, you'll have to handle your back-stack yourself. That back stack thing i no too dey use am, once i notice any complications i move it to another activity then use 2-3 fragments in that one.

[ayaz56]

if (active == fragment1) {
if (doubleBackToExitPressedOnce) {
super.onBackPressed();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
} else {
fm.beginTransaction().hide(active).show(fragment1).commit();
active = fragment1;
}

    OnBack Press handle