I need my app to have bottom bar navigation and swipable tabs. so I need viewpager to swap between fragments nested inside each fragment that is used by the bottom navigation. how do I do this?
First, you create a Fragment that contains ViewPager and TabLayout like this
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".FragmentThatHasViewPagerAndTabLayout">
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android: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>
Then create a Activity which includes FrameLayout (that will be used as fragment container) and BottomNavigation
<LinearLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_navigation_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#color/colorPrimary"
app:itemIconTint="#FFF"
app:itemTextColor="#FFF"
app:menu="#menu/menu_bottom_navigation"/>
</LinearLayout>
Snippet code for Activity
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BottomNavigationView bottomNavigationView = findViewById(R.id.bottom_navigation_view);
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem menuItem) {
//Change fragment when select another item in BottomNavigation
}
}
getFragmentManager().beginTransaction().replace(R.id.fragment_container, new FragmentThatHasViewPagerAndTabLayout(), "TAG_TO_REUSE_FRAGMENT_AFTER_CONFIG_CHANGES").commit();
}
And code in Fragment that contains ViewPager and TabLayout, you just write it like normally do (like having a FragmentPagerAdapter, etc.)
Related
Background
I'm trying to implement a Drawer Navigation inside my fragment. I would prefer to have it there rather than in my main activity because I'm trying to handle toolbars per fragment and having the Drawerlayout coupled would make it easier to setup.
Problem
When I click on the hamburger home button, no drawer layout is displayed. How do I resolve this issue while keeping the drawerlayout inside my fragment.xml file instead of moving it to activity?
Things I've Tried
Followed the Android Navigation Drawer Guide
Made sure my xml layout hierarchy matches the requirements
fragment.xml
<android.support.v4.widget.DrawerLayout
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/drawer_article_topics"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
layout="#layout/toolbar" />
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/articles_swipe_to_refresh"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/articles"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</android.support.v4.widget.SwipeRefreshLayout>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="#menu/navigation_article_topic" />
</android.support.v4.widget.DrawerLayout>
activity.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".ui.main.MainActivity">
<LinearLayout
android:id="#+id/main_content_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
Fragment.java
#BindView(R.id.drawer_article_topics)
DrawerLayout articleTopicDrawerLayout;
// Other code
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_articles_refresh:
articleListingViewModel.startRefresh();
refresh();
return true;
case android.R.id.home:
articleTopicDrawerLayout.openDrawer(GravityCompat.START);
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setHasOptionsMenu(true);
setSupportActionBar(toolbar);
setDrawerIcon();
setupRecyclerView();
setupSwipeRefreshLayout();
}
private void setDrawerIcon() {
if (isAdded()) {
ActionBar actionBar = ((AppCompatActivity)getActivity()).getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeAsUpIndicator(R.drawable.ic_menu);
}
}
The issue seemed to lie with DrawerLayout.openDrawer() and the Android Material Components library. Because I was inheriting Theme.MaterialComponents.Light.NoActionBar in my AppTheme, the Navigation Drawer did not open. Until they add a fix in, the workaround is to add this to your App Theme:
<item name="navigationViewStyle">#style/Widget.Design.NavigationView</item>
More information here:
https://github.com/material-components/material-components-android/issues/133
navigation drawer with fragments
1 - home
2 - courses
3 - gallery
i created 3 fragments for home,courses,gallery resp.
when app open home fragment is going to show
when i click on courses from navigation drawer coursesFragment will open within this fragment i created tab layout and tab layout is showing correctly as i needed, but drawer toggle icon is not there but drawer is opening when i pull it from left side
MainActivity.java :
public class MainActivity extends AppCompatActivity {
DatabaseHelper databaseHelper;
protected DrawerLayout drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle;
Toolbar toolbar;
FragmentTransaction fragmentTransaction;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar=(Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawerLayout=(DrawerLayout)findViewById(R.id.drawer_layout);
actionBarDrawerToggle=new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.drawer_open,R.string.drawer_close);
drawerLayout.setDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.syncState();
fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.add(R.id.main_container,new HomeFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("Home fragment");
NavigationView navigationView= (NavigationView) findViewById(R.id.navview);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener()
{
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId())
{
case R.id.Home:
fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container,new HomeFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("Home fragment");
item.setChecked(true);
break;
case R.id.gallery:
fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container,new GalleryFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("gallery fragment");
item.setChecked(true);
break;
case R.id.courses:
fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container,new CoursesFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("courses fragment");
item.setChecked(true);
break;
}
drawerLayout=(DrawerLayout)findViewById(R.id.drawer_layout);
drawerLayout.closeDrawer(GravityCompat.START);
return true;
}
});
}
activity_main.xml :
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="left"
tools:context="com.navdrawer.navdrawer.MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<include
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="#layout/toolbar_layout"/>
</LinearLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/main_container">
</FrameLayout>
<android.support.design.widget.NavigationView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/navview"
android:layout_gravity="start"
app:menu="#menu/drawer_menu"
app:headerLayout="#layout/navigation_drawer_header"
android:scrollbars="vertical"
>
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginBottom="-20dp"
android:layout_marginLeft="-20dp"
android:layout_gravity="bottom"
android:src="#drawable/iso_main1"
/>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
CoursesFragment.java :
public class CoursesFragment extends Fragment {
public CoursesFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view= inflater.inflate(R.layout.fragment_courses, container, false);
Toolbar toolbar=(Toolbar)view.findViewById(R.id.toolbar);
((AppCompatActivity)getActivity()).setSupportActionBar(toolbar);
((AppCompatActivity)getActivity()).getSupportActionBar().setTitle("Download");
TabLayout tabLayout=(TabLayout)view.findViewById(R.id.courses_tabl);
ViewPager viewPager=(ViewPager)view.findViewById(R.id.courses_viewpager);
ViewpagerAdapter viewpagerAdapter=new ViewpagerAdapter(getChildFragmentManager());
viewpagerAdapter.addFragments(new DownloadFragment(),"Download");
viewpagerAdapter.addFragments(new AlreadyDownlodedFragment(),"Downloaded");
viewPager.setAdapter(viewpagerAdapter);
tabLayout.setupWithViewPager(viewPager);
return view;
}
fragment_courses.xml :
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.navdrawer.navdrawer.CoursesFragment">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/courses_appbar_layout"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<include
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="#layout/toolbar_layout"
/>
</LinearLayout>
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/courses_tabl"
app:tabMode="fixed"
app:tabGravity="fill"
app:tabIndicatorColor="#android:color/white"
>
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/courses_viewpager"
>
</android.support.v4.view.ViewPager>
</FrameLayout>
here is my fragment_gallery.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.navdrawer.navdrawer.GalleryFragment">
<!-- TODO: Update blank fragment layout -->
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Gallery"
android:gravity="center"
android:textSize="30sp"
/>
</FrameLayout>
GalleryFragment:
public class GalleryFragment extends Fragment {
public GalleryFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_gallery, container, false);
}
}
here is screenshots :
Can i see Gallery fragment's xml ?
BTW, why are you using a toolbar again in your courses fragment ?
This must be the issue.. Remove the toolbar from there as it must be overriding the parent activity's toolbar.
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.navdrawer.navdrawer.CoursesFragment">
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/courses_tabl"
app:tabMode="fixed"
app:tabGravity="fill"
app:tabIndicatorColor="#android:color/white"/>
<android.support.v4.view.ViewPager
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/courses_viewpager"/>
This is what you need here
Also make this change in your main_activity.xml
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<include
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="#layout/toolbar_layout"/>
</LinearLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/main_container">
</FrameLayout>
You can set Home button as follows
getSupportActionBar().setHomeButtonEnabled(true);
add this line after setSupportActionBar(toolbar);
If you want set your Custom Icon then you can set as follows
toolbar.setNavigationIcon(R.drawable.myhome);//pass id of your navigation icon
In our app we use a CoordinatorLayout with two Toolbars (top and bottom) that slide out of view when scrolling. Between the Toolbars we have a FrameLayout, thats used to hold a Fragment. Currently we use mainly one Fragment which contains a NestedWebView (https://github.com/takahirom/webview-in-coordinatorlayout). We add the Fragment at runtime by calling fragmentManager.replace().
The Problem is that the FrameLayout seems to often just disappear. Sometimes its gone right from the application start, sometimes it disappears when I click buttons on the top toolbar. When its gone, I can make it show up by rotating the phone or by swiping on the top toolbar. I colored the CoordinatorLayout for debugging purposes and I can clearly see, that sometimes the WebView fills the space as intended, but often the WebView is invisible.
I figured, that the problem does not occur, when I remove
app:layout_behavior="#string/appbar_scrolling_view_behavior"
from the FrameLayout. But of course then scrolling does not work as intended.
Maybe its worth to note, that our Fragment has
setRetainInstance(true)
set.
Can someone tell me, how I can fix this? Here are the files:
CoordinatorLayout xml
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activity.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/content_container"
android:layout_width="fill_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:theme="#style/AppTheme.AppBarOverlay"
app:layout_behavior=".ui.BottomBarBehavior">
<android.support.v7.widget.ActionMenuView
android:id="#+id/toolbar2"
android:layout_width="match_parent"
android:layout_height="45dp"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
WebViewFragment xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/content_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.github.dfa.diaspora_android.ui.ContextMenuWebView
android:id="#+id/webView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"/>
<ProgressBar
android:id="#+id/progressBar"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
style="#style/Widget.AppCompat.ProgressBar.Horizontal"
android:layout_width="fill_parent"
android:indeterminate="false"
android:layout_height="wrap_content"
android:layout_marginTop="-7dp" />
</RelativeLayout>
Some code from our MainActivity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main__activity);
ButterKnife.bind(this);
setSupportActionBar(toolbarTop);
MenuInflater menuInflater = getMenuInflater();
Menu bottomMenu = toolbarBottom.getMenu();
menuInflater.inflate(R.menu.main__menu_bottom, bottomMenu);
toolbarBottom.setOnMenuItemClickListener(new ActionMenuView.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
return MainActivity.this.onOptionsItemSelected(item);
}
});
setupUI(savedInstanceState);
}
private void setupUI(Bundle savedInstanceState) {
...
showFragment(StreamFragment.FRAGMENT_NAME);
...
handleIntent(getIntent());
}
private void showFragment(String tag) {
FragmentManager fm = getSupportFragmentManager();
CustomFragment fragment = (CustomFragment) fm.findFragmentByTag(tag);
if (fragment == null) {
switch (tag) {
case StreamFragment.FRAGMENT_NAME:
Log.d(App.TAG, "Create new StreamFragment");
fragment = new StreamFragment();
break;
default:
Log.e(App.TAG, "Missing fragment "+tag+" in showFragment switch case...");
return;
}
}
currentFragment = fragment;
if (!fragment.isVisible()) {
Log.d(App.TAG, "Fragment not visible. Replace it");
fm.beginTransaction().replace(R.id.content_container, fragment, tag).commit();
//Add fragment's bottom menu entries
currentFragment.onCreateBottomOptionsMenu(toolbarBottom.getMenu(), getMenuInflater());
} else {
Log.d(App.TAG, "Fragment was visible");
}
}
#Override
public void onConfigurationChanged(Configuration newConfig)
{
super.onConfigurationChanged(newConfig);
// Reinitialize the UI
setupUI(null);
}
I could fix this issue by changing
compile 'com.android.support:design:24.2.0'
to
compile 'com.android.support:design:24.1.0'
in my app.gradle file.
I'm currently working on an application for v22 and use the following libraries:
compile 'com.android.support:appcompat-v7:22.2.1'
compile 'com.android.support:support-v4:22.2.1'
compile 'com.android.support:design:22.2.1'
I have only one Activity called HomeActivity that has a Navigation Drawer Inside.
This is the activity_home.xml layout:
<android.support.v4.widget.DrawerLayout
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/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<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:fitsSystemWindows="false">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.ActionBar" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
app:menu="#menu/menu_navigation"/>
So, every time I choose an item from navigation Drawer I replace the FrameView #+id/content_frame with a new Fragment like this:
int id = menuItem.getItemId();
switch (id)
{
case R.id.gazzette:
fragmentManager.beginTransaction()
.replace(R.id.content_frame, new ListViewFragment())
.commit();
drawerLayout.closeDrawers();
break;
case R.id.concorsi:
// Insert the fragment by replacing any existing fragment
fragmentManager.beginTransaction()
.replace(R.id.content_frame, new ConcorsiFragment())
.commit();
drawerLayout.closeDrawers();
break;
Everything works fine and I have a toolbar with the right elevation.
But when I try to replace the #+id/content_frame Fragment with a new Fragment with a TabLayout and View Pager I see the elevation of the toolbar of the Home Activity.
The layout of this inner Fragment is:
<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:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabGravity="fill"
android:elevation="6dp"
android:background="#color/colorPrimary"/>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.AppBarLayout>
Naturally, if I start a new Activity (without Fragment) with a TableLayout everything goes ok but I don't want create a new Activity and launch it with a selection of Navigation Drawer but I want use only Fragment items.
If a set app:elevation="0dp" from HomeActivity I have no shadow in all Application Fragment.
Is this the proper way to add a Fragment with TabLayout inside?
Is there a way to remove the shadow of toolbar only in this case?
I have solution, but not elegant. Simply remove elevation from toolbar in onViewCreated() and set it back in onDestroyView().
private Toolbar toolbar;
private float toolbarElevation;
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
toolbar = getActivity().findViewById(R.id.toolbar);
toolbarElevation = toolbar.getElevation();
toolbar.setElevation(0);
}
}
#Override
public void onDestroyView() {
super.onDestroyView();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
toolbar.setElevation(toolbarElevation);
}
}
I followed http://android-developers.blogspot.de/2014/10/appcompat-v21-material-design-for-pre.html to use the toolbar, without fragment, it works perfectly, but when I use fragment, the fragment always overlays the content, and I cannot see toolbar when displaying fragment.
screen:
and when I starts another activity from the current one, the icon of the toolbar in the new activity doesn't show up. screen:
I use Android Support Library 21.0.3.
and the code in the MainActivity class:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
mLeftDrawerList = (ListView) findViewById(R.id.left_drawer);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
mNavigationDrawerAdapter=new ArrayAdapter<String>( MyActivity.this, android.R.layout.simple_list_item_1, data);
mLeftDrawerList.setAdapter(mNavigationDrawerAdapter);
if (mToolbar != null) {
mToolbar.setTitle("Home");
setSupportActionBar(mToolbar);
}
initDrawer();
final FragmentManager fragementMgr = getSupportFragmentManager();
FragmentTransaction transaction = fragementMgr.beginTransaction();
transaction.add(R.id.fragment_container, new MyFragment());
transaction.commit();
}
the layout xml:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity"
android:layout_width="match_parent"
android:id="#+id/drawerLayout"
android:layout_height="match_parent">
<!-- activity view -->
<LinearLayout
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<include layout="#layout/toolbar" />
<FrameLayout android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<!-- navigation drawer -->
<RelativeLayout
android:layout_gravity="left|start"
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<ListView
android:id="#+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#eee"
android:background="#fff"
android:dividerHeight="1dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
code in MyFragment:
public class MyFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment, container, false);
final Button button = (Button) view.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
Intent intent = new Intent(getActivity(), DetailActivity.class);
startActivity(intent);
}
});
// Inflate the layout for this fragment
return view;
}
}
layout xml for Fragment:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello_fragment"
android:textStyle="bold"
android:gravity="center"
android:layout_gravity="top"
android:textSize="18sp"
android:id="#+id/text"/>
<Button
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_below="#+id/text"
android:text="#string/open"
android:id="#+id/button"/>
</RelativeLayout>
The code in DetailActivity class:
public class DetailActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.detail_activity);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
toolbar.setTitle("Detail");
setSupportActionBar(toolbar);
}
}
layout for the detail activity:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".DetailActivity">
<include layout="#layout/toolbar" />
<TextView
android:layout_width="wrap_content"
android:textColor="#000"
android:text="Detail Activity Content"
android:layout_height="wrap_content" />
</LinearLayout>
can anyone help me out? thanks a lot!
Update: I updated the code and layout of the main activity according to reply from m iav.
new screen is blank now with the changes:
toolbar is a view in your layout , you can see it like textview ,now it is a textview overlay your fragment ,you use attrbibu to below it
so finally after checking the sample: MaterialEverywhere, I came with the solution with updating the layout:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity"
android:layout_width="match_parent"
android:id="#+id/drawerLayout"
android:layout_height="match_parent">
<!-- activity view -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<FrameLayout android:id="#+id/fragment_container"
android:layout_below="#id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<!-- navigation drawer -->
<RelativeLayout
android:layout_gravity="left|start"
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<ListView
android:id="#+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#eee"
android:background="#fff"
android:dividerHeight="1dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
the trick is the parent layout of the toolbar and the content frame. Instead of LinearLayout, I use RelativeLayout. and it works now as expected.
anyway, I found such change from the SDK is over complex, with so many changes, and each can cause issues. It will be much better for the developers to have clean APIs with less all these tweaks.
This should be your main layout.
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity"
android:layout_width="match_parent"
android:id="#+id/drawerLayout"
android:layout_height="match_parent">
<!-- activity view -->
<LinearLayout
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<include layout="#layout/toolbar" />
<FrameLayout android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<!-- navigation drawer -->
<RelativeLayout
android:layout_gravity="left|start"
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<ListView
android:id="#+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#eee"
android:background="#fff"
android:dividerHeight="1dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
And this should be your call to the new fragment:
transaction.add(R.id.fragment_container, new MyFragment())
transaction.commit();
Regarding your second question, a navigation drawer can't be shared among different activities. You have to use a new Fragment and keep the same Activity you're working in now.