Navigation Drawer lag on Android

You can do It this way to avoid drawer lag, change your onItemClick:

layoutDrawer.closeDrawer(linearDrawer);
setLastPosition(posicao);
new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            setFragmentList(lastPosition);
        }
    }, 200);

Edit: prefered way should be setting DrawerListener on DrawerLayout and setting your fragment in onDrawerClosed like this:

Fragment mFragmentToSet = null;

@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
    // Handle navigation view item clicks here.
    switch (item.getItemId()) {
        case R.id.nav_home:
            mFragmentToSet = HomeFragment.newInstance(); 
            break;
    }

    mDrawerLayout.closeDrawer(GravityCompat.START);
    return true;
}

---

mDrawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
        @Override public void onDrawerSlide(View drawerView, float slideOffset) {}
        @Override public void onDrawerOpened(View drawerView) {}
        @Override public void onDrawerStateChanged(int newState) {}

        @Override
        public void onDrawerClosed(View drawerView) {
          //Set your new fragment here
          if (mFragmentToSet != null) {
            getSupportFragmentManager()
                  .beginTransaction()
                  .replace(FRAGMENT_CONTAINER_ID, mFragmentToSet)
                  .commit();
            mFragmentToSet = null;
          }
        }
    });

I think I have found the best solution for this !

First do your fragment transaction like so :

new Handler().post(new Runnable() {
                @Override
                public void run() {
                    getSupportFragmentManager()
                            .beginTransaction()
                            .setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out)
                            .replace(R.id.container, finalMenuFragment)
                            .commit();
                }
            });

I know it looks useless to post a Runnable but this hack avoid lag on the click animation on the drawer especially when you use android:background="?attr/selectableItemBackground" for a clickable element.

And then you close the drawer AT THE END OF THE onResume() function of your fragment (in this example it's "finalMenuFragment") like so :

 new Handler().post(new Runnable() {
        public void run() {

            mDrawerLayout.closeDrawer(mFragmentContainerView);
        }
    });

Again I know it seems stupid to post a Runnable but it makes the close animation smooth.

This way, the drawer will close as fast as it can if you want smooth animations and if your fragment has not a lot of views in it, it will close faster and still without lag.

I would like some feedback on this if somebody tested this solution, hope it helps !

Rather than do transaction in onClick, why not do it in onDrawerClosed from DrawerLayout.DrawerListener?