Tabs in TabLayout aren't available for click

Tabs in TabLayout aren't available for click - android

I've got simple tabLayout within Fragment file which is CoordinatorLayout.
It works good, when user swipes, different Fragments are displayed.
The problem is, tabs aren't respond for clicking, user cannot select particular tab,it has oportunity to swipe only
Below I launch files containing XML, ViewPager2 adapter, and Fragment.java in which I've implemented mechanism for swiping.
For global, in MainActivity I've implemented toolbar, that's why in Fragment's TabLayout I'm using margin top 50dp.
I also lunch its code.
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainFragment">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="#style/Widget.MyApp.TabLayout"
android:layout_marginTop="56dp"
android:layout_below="#+id/toolbar"
app:tabMode="fixed" />
<androidx.viewpager2.widget.ViewPager2
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior"/>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/constraintLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end|right">
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/minusFab"
android:visibility="invisible"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_remove_circle_outline_24px"
app:layout_constraintEnd_toEndOf="#id/plusFab"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/plusFab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="invisible"
android:layout_marginTop="20dp"
android:layout_marginBottom="24dp"
android:src="#drawable/ic_add_circle_outline_24px"
app:layout_constraintBottom_toTopOf="#+id/mainFab"
app:layout_constraintEnd_toEndOf="#+id/mainFab"
app:layout_constraintTop_toBottomOf="#+id/minusFab" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/mainFab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:src="#drawable/ic_expand_less_24px"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
I've configured all mechanisms responsible for tabs logic:
public class ViewPagerAdapter extends FragmentStateAdapter {
public ViewPagerAdapter(#NonNull FragmentActivity fragmentActivity) {
super(fragmentActivity);
}
#NonNull
#Override
public Fragment createFragment(int position) {
switch (position)
{
case 0: return new FirstFragment();
case 1: return new SecondFragment();
case 2: return new ThirdFragment();
default:
return null;
}
}
#Override
public int getItemCount() {
return 3;
}
}
And implementation in Fragment.Java
public class MainFragment extends Fragment {
public MainFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main, container, false);
ViewPager2 viewPager2 = view.findViewById(R.id.viewPager);
viewPager2.setAdapter(new ViewPagerAdapter(getActivity()));
TabLayout tabLayout = view.findViewById(R.id.tab_layout);
TabLayoutMediator tabLayoutMediator = new TabLayoutMediator(
tabLayout, viewPager2, new TabLayoutMediator.TabConfigurationStrategy() {
#Override
public void onConfigureTab(#NonNull TabLayout.Tab tab, int position) {
switch (position){
case 0: tab.setText("First");
break;
case 1: tab.setText("Second");
break;
case 2: tab.setText("Third");
break;
}
}
}
);
tabLayoutMediator.attach();
// Inflate the layout for this fragment
return view;
}
}
MainActivity Layout:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/Theme.FragmentsWithTabs.AppBarOverlay"
app:layout_constraintTop_toTopOf="parent">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/Theme.FragmentsWithTabs.PopupOverlay">
<com.google.android.material.switchmaterial.SwitchMaterial
android:id="#+id/color_mode_switch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center|end"
android:text="Switch here"
android:textAppearance="#style/TextAppearance.AppCompat.Small" />
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
<fragment
android:id="#+id/fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="#navigation/nav_graph"
tools:layout_editor_absoluteX="127dp"
tools:layout_editor_absoluteY="297dp" />
</androidx.constraintlayout.widget.ConstraintLayout>

You have to add listener on tablayout to listen tab select event. Like,
tabLayout.setupWithViewPager(viewPager);
tabLayout.setOnTabSelectedListener(
new TabLayout.ViewPagerOnTabSelectedListener(viewPager) {
#Override
public void onTabSelected(TabLayout.Tab tab) {
//here you can write code to change page of viewpager based on tab id.
// like, viewpager.setCurrentItem(0);
}
});

Finally I've came with an answer. In this situation, ViewPager2 was expanded on all screen hence overlapping clicks on TabLayout :)
So solution was simple, now MainFragment's ViewPager2 code looks like follows:
<androidx.viewpager2.widget.ViewPager2
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="629dp"
android:layout_gravity="bottom"
app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior" />

Related

Fragment components are invisible in actual running app

I wanna create an activity that consist of 3 fragments. Problem is after adding views to fragment, in xml design section it shows normally but after running in actual device or emulator, views go invisible.I can click on (for example) EditText and keyboard shows itself, but i can not see that EditText!
fragment.xml code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ProfileTab">
<EditText
android:id="#+id/edtProfileName"
android:layout_width="0dp"
android:layout_height="50dp"
android:layout_marginStart="20dp"
android:layout_marginTop="65dp"
android:layout_marginEnd="20dp"
android:background="#drawable/et_profiletab_custom"
android:ems="10"
android:hint="Profile Name"
android:inputType="textPersonName"
android:padding="15dp"
android:textSize="15sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
.
.
.
activity.xml code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/fragment_holder"
tools:context=".SocialMediaActivity">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff">
<include
android:id="#+id/myToolbar"
layout="#layout/my_toolbar" />
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/purple_500"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:tabSelectedTextColor="#AEA0A0"
app:tabTextColor="#fff" />
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/appBarLayout"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
fragment.java code:
public class ProfileTab extends Fragment {
private EditText edtProfileName;
public ProfileTab() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_profile_tab, container, false);
edtProfileName = view.findViewById(R.id.edtProfileName);
//....
return view;
activity.java
public class SocialMediaActivity extends AppCompatActivity {
private Toolbar toolbar;
private ViewPager viewPager;
private TabLayout tabLayout;
private TabAdapter tabAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_social_media);
setTitle("Social Media App!!!");
toolbar = findViewById(R.id.myToolbar);
setSupportActionBar(toolbar);
viewPager = findViewById(R.id.viewPager);
tabAdapter = new TabAdapter(getSupportFragmentManager());
//get the data from tab that we have created from fragments and put it to viewPager
viewPager.setAdapter(tabAdapter);
tabLayout = findViewById(R.id.tabLayout);
tabLayout.setupWithViewPager(viewPager, false);
}
TabAdapter.java code: // java says that FragmentPagerAapter is deprecetad
public class TabAdapter extends FragmentPagerAdapter {
public TabAdapter(#NonNull FragmentManager fm) {
super(fm);
}
#NonNull
#Override
public Fragment getItem(int tabPosition) {
switch (tabPosition){
case 0:
return new ProfileTab();
.
.
.
}
}
#Override
public int getCount() {
return 3;
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
switch (position){
case 0:
return "Profile";
.
.
.
}
}
}
I try fragment.xml root layout with RelativeLayout or disable actionbar replacement with toolbar or change theme of tablayout and toolbar but problem is exist.
How can i solve the problem?

change these lines in XML activity layout
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/appBarLayout" />
and also in AppBarLayout set layout height to:
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content">

How to show admob Banner in Tabbed-Fragment Activity

I am showing 4 tabbed fragments with a pager view.
I want to show a banner ad at the bottom when every tab changes.
Also I have multiple Fragments in my Navigation drawer.
I also want to show banner ads when I open any of the fragment from the navigation drawer.
I am using Recycler View in fragments and Showing List of Objects in every fragment.
I have added the admob ads dependcies, added code in the manifest.
I just want to know where should the adView be placed to show the banner in every fragment whether its in the tabs or a standalone fragment.
xml of MainActivity
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical">
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ToolbarColoredBackArrow"
app:title="Drawer With Swipe Tabs" />
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/containerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"/>
<android.support.design.widget.NavigationView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/shitstuff"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginTop="4dp"
android:background="#000000"
android:fitsSystemWindows="true"
app:itemIconTint="#fbc500"
app:itemTextColor="#FFFFFF"
app:menu="#menu/drawermenu" />
</android.support.v4.widget.DrawerLayout></LinearLayout>
Tab Frament
This Controls all the tabbed activity.
public class TabFragment extends Fragment {
public static TabLayout tabLayout;
public static ViewPager viewPager;
public static int int_items = 4;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View x = inflater.inflate(R.layout.tab_layout, null);
tabLayout = (TabLayout) x.findViewById(R.id.tabs);
viewPager = (ViewPager) x.findViewById(R.id.viewpager);
viewPager.setAdapter(new MyAdapter(getChildFragmentManager()));
viewPager.setOffscreenPageLimit(int_items - 1);
tabLayout.post(new Runnable() {
#Override
public void run() {
tabLayout.setupWithViewPager(viewPager);
}
});
return x;
}
class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new Fragment1();
case 1:
return new Fragment2();
case 2:
return new Fragment3();
case 3:
return new Fragment4();
}
return null;
}
#Override
public int getCount() {
return int_items;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Tab1";
case 1:
return "Tab2";
case 2:
return "Tab3";
case 3:
return "Tab4";
}
return null;
}
}
}
xml Tablayout
This holds the ids for view pager and tabs
< LinearLayout
xmlns: android = "http://schemas.android.com/apk/res/android"
xmlns: app = "http://schemas.android.com/apk/res-auto"
android: layout_width = "match_parent"
android: orientation = "vertical"
android: layout_height = "wrap_content" >
<android.support.design.widget.TabLayout
android: id = "#+id/tabs"
app: tabGravity = "center"
app: tabMode = "scrollable"
android: layout_width = "match_parent"
android: layout_height = "wrap_content" >
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android: id = "#+id/viewpager"
android: layout_width = "match_parent"
android: layout_height = "match_parent" >
</android.support.v4.view.ViewPager>
</LinearLayout>
All of the Fragments Activities are like this
Fragment Activity
public class TopNewsFragment extends Fragment {
public TopNewsFragment() {}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_cheese_list, container, false);
setHasOptionsMenu(true);
layoutManager = new LinearLayoutManager(this.getActivity());
recyclerAdapter = new RecyclerAdapter(getActivity(), new ArrayList < Values > ());
recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerview);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(recyclerAdapter);
return rootView;
}
And Last the Fragment Layout:
fragment_cheese_list
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

Replace this XML code with your existing.
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:id="#+id/containerView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:weight="1"
android:orientation="vertical"/>
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
ads:adSize="BANNER"
ads:adUnitId="#string/banner_home_footer">
</com.google.android.gms.ads.AdView>
</LinearLayout>
<android.support.design.widget.NavigationView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/shitstuff"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginTop="4dp"
android:background="#000000"
android:fitsSystemWindows="true"
app:itemIconTint="#fbc500"
app:itemTextColor="#FFFFFF"
app:menu="#menu/drawermenu" />

I have solved the issue by editing fragment_cheese_list.xml like this:
<RelativeLayout android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto">
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="55dp" />
<com.google.android.gms.ads.AdView
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/ad_view"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
ads:adSize="BANNER"
ads:adUnitId="#string/banner_ad_unit_id"/>
</RelativeLayout>

Problems with the scrolling in a expandable list view inside a viewpager - Android

I have an aplication with a toolbar and an tab layout in appcompat v7. I navegate across the tabs with a View Pager, but the problem is where put an Expandable List View inside, doesn't scroll: this is my Java code from the principal activity
The minimal API is 15: Android Ice Cream Sandwicth 4.0.4
public class Principal extends AppCompatActivity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_principal);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final TabLayout Tabulacion = (TabLayout) findViewById(R.id.Tabulacion);
final ViewPager viewPager = (ViewPager) findViewById(R.id.Pager);
final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), Tabulacion.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(Tabulacion));
Tabulacion.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
the Java code from the PagerAdapter
public class PagerAdapter extends FragmentStatePagerAdapter {
int intNumTabs;
public PagerAdapter(FragmentManager FM, int NumTabs) {
super(FM);
this.intNumTabs = NumTabs;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
TabHome Tab1 = new TabHome();
return Tab1;
case 1:
TabLectura Tab2 = new TabLectura();
return Tab2;
default:
return null;
}
}
#Override
public int getCount() {
return intNumTabs;
}
}
the XML code from the principal activity
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".Principal">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay"
android:id="#+id/textView">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:id="#+id/Tabulacion"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TabItem
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Inicio">
</android.support.design.widget.TabItem>
<android.support.design.widget.TabItem
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Lectura">
</android.support.design.widget.TabItem>
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/Pager"
android:isScrollContainer="true"
android:nestedScrollingEnabled="true"
android:background="#color/backgroundColor" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
the XML code from the tab 2 fragment:
<ExpandableListView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/ListView">
</ExpandableListView>
The content of the Expandable List View is dynamic generated

I solve it! I extract the view pager from the app coordinator layout in the XML, there is the final code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".Principal">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay"
android:id="#+id/textView">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:id="#+id/Tabulacion"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TabItem
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Inicio">
</android.support.design.widget.TabItem>
<android.support.design.widget.TabItem
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Lectura">
</android.support.design.widget.TabItem>
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/Pager"
android:background="#color/backgroundColor" />
</LinearLayout>

Use a recyclerview instead of listview. I have implemented it in a view pager and it works perfectly. Recyclerview does virtually everything that a listview does and much more.

Android UI Elements in tabbed view not loading

I'm using a FragmentStatePagerAdapter to manage three tabbed Fragments that each have a ListView and a button. When the parent Fragment loads the via the ViewPager and PagerAdapter, the Button is missing but the ListView still shows. Switching to another tab in the Fragment causes the buttons to show up as they were supposed to.
Why isn't the button showing on the first view load?
public class DetailsPagerAdapter extends FragmentStatePagerAdapter {
private Creature creature;
public DetailsPagerAdapter(FragmentManager fm, Creature creature) {
super(fm);
this.creature = creature;
}
#Override
public Fragment getItem(int position) {
switch(position) {
case 0:
return StatFragment.newInstance(creature);
case 1:
return ModFragment.newInstance(creature);
case 2:
return ResourceFragment.newInstance(creature);
}
return new Fragment();
}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
switch(position) {
case 0:
return "Stats";
case 1:
return "Mods";
case 2:
return "Resources";
}
return "";
}
}
Details Fragment - Contains the tabs
public class CreatureDetailFragment extends Fragment {
private Creature creature;
private DetailsPagerAdapter detailsPagerAdapter;
private ViewPager viewPager;
private TabLayout tabs;
public CreatureDetailFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments().containsKey(Creature.ID_INTENT_MESSAGE)) {
this.creature = Creature.get(this.getContext(), getArguments().getLong(Creature.ID_INTENT_MESSAGE, 0l));
Activity activity = this.getActivity();
CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout) activity.findViewById(R.id.toolbar_layout);
if (collapsingToolbarLayout != null) {
collapsingToolbarLayout.setTitle(this.creature.name);
}
this.detailsPagerAdapter = new DetailsPagerAdapter(this.getActivity().getSupportFragmentManager(), creature);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View view = inflater.inflate(R.layout.fragment_creature_details_tabbed, container, false);
this.viewPager = (ViewPager) view.findViewById(R.id.viewPager);
this.viewPager.setAdapter(this.detailsPagerAdapter);
this.tabs = (TabLayout) view.findViewById(R.id.tabLayout);
this.tabs.setupWithViewPager(this.viewPager);
return view;
}
}
Parent layout that contains tabs
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto" android:id="#+id/main_content"
android:layout_width="match_parent" android:layout_height="match_parent"
android:fitsSystemWindows="true" tools:context=".DetailActivity">
<android.support.design.widget.AppBarLayout android:id="#+id/appbar"
android:layout_width="match_parent" android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar android:id="#+id/detail_toolbar"
android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary" app:popupTheme="#style/AppTheme.PopupOverlay"
/>
<android.support.design.widget.TabLayout android:id="#+id/tabLayout"
android:layout_width="match_parent" android:layout_height="wrap_content"
android:fillViewport="false" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager android:id="#+id/viewPager"
android:layout_width="match_parent" android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
Tab Layout
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabListView"
android:layout_alignParentTop="true"
android:layout_above="#+id/btnAddItem" />
<ImageButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/btnAddItem"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:textColor="#d5d5d5"
android:background="#000"
android:textSize="24dp"
android:alpha=".7"
android:src="#drawable/ic_action_add" />
</RelativeLayout>

It seems that CoordinatorLayout wasn't the best layout to use for my tab fragment. The ListView was pushing the button out of the viewable space on first load and, for some reason, was only being rendered when redrawing the view.
I switched it to RelativeLayout and added some attributes to the ViewPager:
<android.support.v4.view.ViewPager android:id="#+id/viewPager"
android:layout_width="match_parent" android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:layout_below="#+id/appbar" />

Collapsing/Expanding view coordinated with Sliding RecyclerView

I am trying to achieve the following affect (also see image below):
the app opens with a view (map) partially visible and the RecyclerView at a default anchor point (center image)
user scrolls the RecyclerView up, the map collapses and the list continues scrolling (right image)
user scrolls the RecyclerView down, the map expands to a maximum point (note the list should not slide completely off screen but to some anchored point) (left image)

To create this we need 1 Activity and 3 Fragments.
The Activity will host a TabLayout and a ViewPager like so:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
Since we only need to do the sliding behavior for the 1st Fragment the first Fragment gets an XML layout like so:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="400dp"
android:orientation="vertical"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingToolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
app:layout_collapseMode="parallax"
android:layout_height="400dp"
android:layout_width="match_parent" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
You can make the other Fragments however you like I just created fake data and a simple RecyclerView in the other Fragments.
Then call these views in your Activity and Fragment like so:
Activity
public class MainActivity extends AppCompatActivity {
private TabLayout mTabLayout;
private ViewPager mViewPager;
private SampleViewPagerAdapter mViewPagerAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.another_activity);
mTabLayout = (TabLayout) findViewById(R.id.sliding_tabs);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
mViewPagerAdapter = new SampleViewPagerAdapter(getSupportFragmentManager());
mViewPager.setAdapter(mViewPagerAdapter);
mTabLayout.setupWithViewPager(mViewPager);
}
}
ViewPager Adapter
public class SampleViewPagerAdapter extends FragmentPagerAdapter {
public SampleViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new MapFragment();
case 1:
return new ScrollFragment();
case 2:
return new ScrollFragment();
default:
return new ScrollFragment();
}
}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
String[] tabNames = {"Stops", "Planner", "Alerts"};
return tabNames[position];
}
}
Map Fragment with Sliding RecyclerView
public class MapFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.activity_main, null);
initCollapsingToolbar(root);
// Initialize map
initFragment();
return root;
}
private void initCollapsingToolbar(View root) {
CollapsingToolbarLayout collapsingToolbarLayout =
(CollapsingToolbarLayout) root.findViewById(R.id.collapsingToolbar);
collapsingToolbarLayout.setContentScrimColor(getResources().getColor(R.color.cyan_500));
}
private void initFragment() {
FakeDataFragment fragment = new FakeDataFragment();
getChildFragmentManager().beginTransaction()
.replace(R.id.content, scrollFragment)
.commit();
}
}
You should get something like this then:
Setting the position:
You can programmatically collapse the toolbar (CollapsingToolbarLayout) using the following code:
public void collapseToolbar(){
CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) mFrameLayout.getLayoutParams();
AppBarLayout.ScrollingViewBehavior behavior = (AppBarLayout.ScrollingViewBehavior) params.getBehavior();
if (behavior != null) {
behavior.onNestedFling(rootLayout, appbarLayout, null, 0, 10000, true);
}
}
This means when the User first sees the map the map is partially collapsed to your Default State.

I Found Solution for Tabs in CoordinatorLayout
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/htab_maincontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/htab_appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/htab_collapse_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:statusBarScrim="#null"
app:titleEnabled="false">
<LinearLayout
android:id="#+id/isprofile"
android:layout_width="match_parent"
android:layout_height="180dp"
android:background="#drawable/profile_cover"
android:gravity="center"
app:layout_collapseMode="parallax">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:gravity="center"
android:orientation="vertical">
<com.root.findagame.utills.CircleImageView
android:id="#+id/profile_pic"
android:layout_width="60dp"
android:layout_height="60dp"
android:background="#drawable/profile_pic" />
<TextView
android:id="#+id/txtUserName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textColor="#color/cpb_white"
android:textSize="#dimen/text_medium_size"
android:textStyle="bold" />
<TextView
android:id="#+id/txtAge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text=""
android:textColor="#color/cpb_white"
android:textSize="#dimen/text_small_size" />
<TextView
android:id="#+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text=""
android:textColor="#color/cpb_white"
android:textSize="#dimen/text_small_size"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/htab_toolbar"
android:layout_width="match_parent"
android:layout_height="40dp"
android:visibility="gone"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:id="#+id/htab_tabs"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_gravity="bottom"
android:background="#color/cpb_white"
app:layout_collapseMode="pin"
app:tabIndicatorColor="#7CC142"
app:tabSelectedTextColor="#7CC142"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:tabTextAppearance="#android:style/TextAppearance.Widget.TabWidget"
app:tabTextColor="#color/lightGrayColor" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/htab_viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
*Fragment*
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/dummyfrag_bg"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/dummyfrag_scrollableview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false" />
</FrameLayout>

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Tabs in TabLayout aren't available for click - android

Related

Fragment components are invisible in actual running app

How to show admob Banner in Tabbed-Fragment Activity

Problems with the scrolling in a expandable list view inside a viewpager - Android

Android UI Elements in tabbed view not loading

Collapsing/Expanding view coordinated with Sliding RecyclerView

Categories

Resources