SlidingTabLayout | 自定义实现TabLayout，类似于今日头条的可滑动tab，带三角下标，可绑定ViewPager进行联动

I have an app that I am using with androidx components and I cannot get it to show the hamburger icon indicating a DrawerActivity. Here is my layout:

as it's in title - i can't change MapView height. Whats i'm talking about:

Screen 1 | Screen 2

fragment_map_view.xml is in fragment_main_view.xml which is in main_activity.xml viewpager.

fragment_map_view.xml:

I'm trying to use the Elevation from Material Design to create Shadow on a Navigation Tab Bar.

Follow other guides I learn that I need:

• Put the padding on the parent view.
• Use ClipToPadding false on Parent.
• Declare the Elevation on the Child View.
• And Choose one Back Ground for Child.

I was able to do this in elements for my recycler view using adapters, but I'm not able to use this direct on my xml activity.

I am trying to switch to another activity when the item in Material Drawer is clicked. I am using Material Drawer (com.mikepenz.materialdrawer:library:2.9.8) in this application. The problem is when I try to switch to another activity with clicking item, its always drive to default case (switch case).

Here are my code: MainFeed.java

I have MyTrips fragment which contains ViewPager. So it contains two tabs i.e two fragments one is ScheduleListFrgment and another is TripHistoryFragment.

Now As I replace MyTrips fragment it first shows ScheduleListFragment, loads data from server and shows in a list, it also loads data of tripHistory from server.

So now I have given click event to the list item of ScheduleListFragment so onClick it replaces ScheduleListFragment with PostDetailsFragment.

Now after I press back from PostDetailsFragment it shows empty ScheduleListFragment with no list.

I want to show the list when user press from from PostDetailsFragment.

ScheduleListFragment

i am creating an android app that uses a Navigation Drawer. Since i will have more than one Option in the drawer, i had to create a method passing the activity that i want to implement the navigation and the Activity Toolbar.

The problem is, i am receiving a Null Pointer when i declare the NavigatioDrawer method in the activities. let me show you:

HERE IS MY NAVIGATION DRAWER METHOD(WHICH I WILL INSTANTIATE IN THE ACTIVITY):

My MainActivity contains one mikepenz/MaterialDrawer and one pager view which contains 5 fragments. I am using material drawer to launch other activities but after launching many activities and coming back to my base Main activity the below crash occurs. I have no clue to find the actual root cause of this issue. Your help will be highly appreciated.

I'm currently working in my own project of dental application, i would like to ask if how to pass a certain data from a custom dialog and show or add it to the target fragment?

Appreciate for any help.

This is the Custom Dialog Screenshot:

CustomDialog.java

I've created a SlidingTabs with only 2 tabs however the layout is not properly being shown. Image 1 is the output that I always get and Image 2 is the output I'm expect to achieve

Output

Expected output

layout.xml