I'm trying to prevent a CollapsingToolbar
from expanding for one of my fragments.
Currently, when I use the method setExpanded()
, I am able to see the toolbar in its collapsed state.
appBarLayout.setExpanded(false, true);
However, the collapsingToolbar is still expandable, which is not what I want. I want the collapsingToolbar to not be expandable for this particular fragment.
In other words, I want the collapsingToolbar to behave and look like a regular toolbar (i.e. "not expandable") for this particular fragment only.
I am using Mike Penz's Material Drawer. The code below shows the relevant code, with notes indicating what I have tried.
private void buildDrawer(){
Drawer drawer = new DrawerBuilder()
.withActivity(this)
.withFullscreen(true)
.withTranslucentStatusBar(true)
.withToolbar(toolbar)
.withAccountHeader(accountHeader)
.addDrawerItems(
item1,
item2,
new DividerDrawerItem(),
item3,
item4
)
.withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
@Override
public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment f = new Fragment();
switch (position) {
//other cases not shown
case 2:
f = new LocateFragment();
appBarLayout.setExpanded(false, true);
//Adding the following three lines don't work - causes the toolbar to be unscrollable, but in its expanded form
//AppBarLayout.LayoutParams p = (AppBarLayout.LayoutParams)collapsingToolbarLayout.getLayoutParams();
//p.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
//collapsingToolbarLayout.setLayoutParams(p);
//toolbar.setCollapsible(false); doesn't work either
collapsingToolbarLayout.setTitle("Locate Events");
setInvisibleAddPhotoFab();
break;
//other cases not shown
}
fragmentTransaction.replace(R.id.frame_fragments, f);
fragmentTransaction.commit();
return false; //close drawer onclick
}
})
.build();
loadBackdrop();
}
This is what I want - I want the toolbar to be unexpandable:
Currently, however, it is still expandable, so the image below is NOT what I want:
UPDATE:
I was able to collapse the toolbar and prevent it from expanding like so (code below), but I've run into another issue - the title no longer appears on the collapsingToolbar when I set it like so: collapsingToolbarLayout.setTitle("string");
appBarLayout.setExpanded(false, true);
int px = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 80, getResources().getDisplayMetrics());
CoordinatorLayout.LayoutParams lp = (CoordinatorLayout.LayoutParams)appBarLayout.getLayoutParams();
lp.height = px;
appBarLayout.setLayoutParams(lp);
I was able to resolve this problem using the following (as shown here by @DanielPersson):
collapsingToolbarLayout.setTitleEnabled(false);
toolbar.setTitle(title);