What is the difference between toolbar ,collapsing toolbar ,app bar ,bottom navigation bar and action bar in android?

Question

What is the difference between these Android components?

• Action Bar
• Toolbar
• Collapsing Toolbar
• Bottom navigation bar
• App Bar

Answer 1

Action bar,App bar,Toolbar all are same.In this bar,We can add(or hide) up arrow to go to previous activity.we can add overflow menu also set page title with in this bar.

Support action bar is also toolbar but it is more flexible than classic tool bar.below image is toolbar.

Collapsing Toolbar is also toolbar, will shrink and expand when you scroll.

Bottom navigation bar contains icon each icon will bring us to different fragment.Activity that holds this bar will be the container for all fragment.below is bottom navigation bar.