Sliding Tabs in Toolbar using Material Design - android

I have been learning to use Sliding Tabs using Material Design using this post. I have managed to achieve SlidingTabs below the Toolbar, like this one:
But now i would like to create ActionBar/ToolBar Fragment Tabs ...

I was able to recreate exactly what you are looking to implement. I am using the this Library for the tabs.
This is the view I have created:
Import Library Through Dependencies or Download Project and Import Manually
compile 'com.jpardogo.materialtabstrip:library:1.0.9'
styles.xml
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#color/primary</item>
<item name="colorPrimaryDark">#color/primary_dark</item>
</style>
</resources>
MainActivity & Adapter
public class MainActivity extends ActionBarActivity {
Toolbar toolbar;
ViewPager viewPager;
ContactPagerAdapter pagerAdapter;
PagerSlidingTabStrip pagerSlidingTabStrip;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
toolbar.setLogo(R.mipmap.logo_two);
toolbar.inflateMenu(R.menu.menu_main);
viewPager = (ViewPager) findViewById(R.id.pager);
pagerAdapter = new ContactPagerAdapter(this, getSupportFragmentManager());
pagerSlidingTabStrip = (PagerSlidingTabStrip) findViewById(R.id.tabs);
viewPager.setAdapter(pagerAdapter);
pagerSlidingTabStrip.setViewPager(viewPager);
}
public static class ContactPagerAdapter extends FragmentPagerAdapter implements PagerSlidingTabStrip.CustomTabProvider {
private final int[] ICONS = {R.mipmap.ic_launcher, R.mipmap.ic_launcher};
Context mContext;
private Fragment f = null;
public ContactPagerAdapter(Context ctx, FragmentManager fm) {
super(fm);
mContext = ctx;
}
#Override
public int getCount() {
return ICONS.length;
}
#Override
public Fragment getItem(int position) { // Returns Fragment based on position
switch (position) {
case 0:
f = new FragmentPageOne();
break;
case 1:
f = new FragmentPageTwo();
break;
}
return f;
}
#Override
public View getCustomTabView(ViewGroup parent, int position) {
LinearLayout customLayout = (LinearLayout) LayoutInflater.from(mContext).inflate(R.layout.custom_tab, parent, false);
ImageView imageView = (ImageView) customLayout.findViewById(R.id.image);
imageView.setImageResource(ICONS[position]);
return customLayout;
}
}
}
activity_main.xml
<RelativeLayout
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.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#02a6d8"
android:minHeight="56dp"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<com.astuetz.PagerSlidingTabStrip
android:id="#+id/tabs"
android:layout_width="wrap_content"
android:layout_height="56dp"
android:layout_alignParentRight="true"
android:layout_marginLeft="8dp"
android:background="#02a6d8"
app:pstsDividerColor="#02a6d8"
app:pstsIndicatorColor="#fff"
app:pstsIndicatorHeight="2dp"
app:pstsShouldExpand="false"
app:pstsUnderlineHeight="0dp"/>
</android.support.v7.widget.Toolbar>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/toolbar"/>
<!-- Shadow below toolbar-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="5dp"
android:layout_below="#+id/toolbar"
android:background="#drawable/toolbar_shadow"/>
</RelativeLayout>
custom_tab.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="30dp"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image"
android:layout_width="30dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:paddingBottom="8dp"
android:paddingTop="8dp"/>
</LinearLayout>
Drawrable toolbar_shadow.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:angle="270"
android:endColor="#android:color/transparent"
android:startColor="#color/semi_transparent"/>
</shape>

In fact the tabs are not in the toolbar. The toolbar is just hidden. You can hide the toolbar calling getSupportActionBar().hide() and the toolbar will be gone. As a result of this the tabs will be at the top of the screen.

As i already wrote you can find an example here: http://www.android4devs.com/2015/01/how-to-make-material-design-sliding-tabs.html
By the way, what you need to is include in your project this code: https://developer.android.com/samples/SlidingTabsColors/src/com.example.android.common/view/SlidingTabLayout.html. So create a class in which you will paste the entire code.
Then create your activity that extends ActionBarActivity like for example this one:
public class MainActivity extends ActionBarActivity {
static final String LOG_TAG = "SlidingTabsBasicFragment";
private SlidingTabLayout mSlidingTabLayout;
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_sample);
Toolbar toolbar = (Toolbar) findViewById(R.id.my_awesome_toolbar);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
mViewPager.setAdapter(new SamplePagerAdapter());
mSlidingTabLayout = (SlidingTabLayout) findViewById(R.id.sliding_tabs);
mSlidingTabLayout.setViewPager(mViewPager);
/*
* FragmentTransaction transaction =
* getSupportFragmentManager().beginTransaction();
* SlidingTabsBasicFragment fragment = new SlidingTabsBasicFragment();
* transaction.replace(R.id.sample_content_fragment, fragment);
* transaction.commit();
*/
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
class SamplePagerAdapter extends PagerAdapter {
/**
* #return the number of pages to display
*/
#Override
public int getCount() {
return 5;
}
/**
* #return true if the value returned from
* {#link #instantiateItem(ViewGroup, int)} is the same object
* as the {#link View} added to the {#link ViewPager}.
*/
#Override
public boolean isViewFromObject(View view, Object o) {
return o == view;
}
// BEGIN_INCLUDE (pageradapter_getpagetitle)
/**
* Return the title of the item at {#code position}. This is important
* as what this method returns is what is displayed in the
* {#link SlidingTabLayout}.
* <p>
* Here we construct one using the position value, but for real
* application the title should refer to the item's contents.
*/
#Override
public CharSequence getPageTitle(int position) {
return "Item " + (position + 1);
}
// END_INCLUDE (pageradapter_getpagetitle)
/**
* Instantiate the {#link View} which should be displayed at
* {#code position}. Here we inflate a layout from the apps resources
* and then change the text view to signify the position.
*/
#Override
public Object instantiateItem(ViewGroup container, int position) {
// Inflate a new layout from our resources
View view = getLayoutInflater().inflate(R.layout.pager_item,
container, false);
// Add the newly created View to the ViewPager
container.addView(view);
// Retrieve a TextView from the inflated View, and update it's text
TextView title = (TextView) view.findViewById(R.id.item_title);
title.setText(String.valueOf(position + 1));
Log.i(LOG_TAG, "instantiateItem() [position: " + position + "]");
// Return the View
return view;
}
/**
* Destroy the item from the {#link ViewPager}. In our case this is
* simply removing the {#link View}.
*/
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
Log.i(LOG_TAG, "destroyItem() [position: " + position + "]");
}
}
of course this fragment layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<android.support.v7.widget.Toolbar
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/my_awesome_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
app:theme="#style/ThemeOverlay.AppCompat.ActionBar">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<com.example.android.common.view.SlidingTabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</android.support.v7.widget.Toolbar>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1"
android:background="#android:color/white" />
</LinearLayout>
and the pager_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">
<TextView
android:id="#+id/item_subtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Page:"/>
<TextView
android:id="#+id/item_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="80sp" />
</LinearLayout>
This is the way to do it.
You can also use this library: https://github.com/florent37/MaterialViewPager or this one: https://android-arsenal.com/details/1/1100

Related

sliding tab not sliding smoothly

i have an issue with the tab indicator under the tab titles in my tabbed activity, it's not sliding smoothly it just jumps when i scroll from a fragment to another. i don't really know how to fix this problem. i tried to look for some solutions but i couldn't find any can you please help me? here is my code
if you want any other files just let me know in the comments
public class MainActivity extends AppCompatActivity {
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
private TabLayout mTabLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
//tab Id
mTabLayout = (TabLayout) findViewById(R.id.tabs);
mTabLayout.setupWithViewPager(mViewPager);
//add tabs
mTabLayout.addTab(mTabLayout.newTab().setText("Cours"));
mTabLayout.addTab(mTabLayout.newTab().setText("Quiz"));
mTabLayout.addTab(mTabLayout.newTab().setText("Info générale"));
mTabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
Pager adapter = new Pager(getSupportFragmentManager(), mTabLayout.getTabCount());
mViewPager.setAdapter(adapter);
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
mTabLayout.setScrollPosition(position, 0, true);
mTabLayout.setSelected(true);
}
#Override
public void onPageSelected(int position) {
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
mTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
//mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
//tabLayout.addOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
#Override
public int getCount() {
// Show 3 total pages.
return 3;
}
}
}
xml code for the mainActivity
<?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:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/appbar_padding_top"
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:layout_weight="1"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:title="#string/app_name">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TabItem
android:id="#+id/tabItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_1" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_2" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_3" />
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
Here's code from my app in which I implemented viewpager,
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar)findViewById(R.id.chatPageToolbar);
setSupportActionBar(mToolbar);
getSupportActionBar().setTitle("MyApp");
//Tabs
mViewPager = (ViewPager) findViewById(R.id.main_tabPager);
mViewPager.setOffscreenPageLimit(3);
mTabLayout = (TabLayout) findViewById(R.id.mainTabs);
mTabLayout.setupWithViewPager(mViewPager);
setupViewPager(mViewPager);
}
private void setupViewPager(ViewPager viewPager){
mSectionPagerAdapter = new SectionPagerAdapter(getSupportFragmentManager());
blogFragment = new BlogFragment();
chatFragment = new ChatFragment();
friendsFragment = new FriendsFragment();
mSectionPagerAdapter.addFragment(blogFragment,"BLOG");
mSectionPagerAdapter.addFragment(chatFragment,"CHAT");
mSectionPagerAdapter.addFragment(friendsFragment,"FRIENDS");
viewPager.setAdapter(mSectionPagerAdapter);
viewPager.setCurrentItem(1);
}
I don't think you need to add mTabLayout.onTabSelectedListener, just try removing that and try again.
On clicking tabs, it should immediately change the tabs, but on swiping it should swipe smoothly.

Changing fragments onClick of a button

I am trying to change the fragment when I click on a button. The button is inside a fragment and I want to go to another fragment. This code is not giving any error but not changing to desired fragment. It is just showing the background of container. Please help me why it is just showing the color of container and not changing to new fragment.
Here is my first Fragment-
public class IntroFragment1 extends Fragment {
public IntroFragment1() {
// Required empty public constructor
}
public static IntroFragment1 newInstance() {
return new IntroFragment1();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_intro1, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
/**
* Button to go to next tab in tutorial
* */
Button nextScreen = getView().findViewById(R.id.nextTabButtonIntro);
nextScreen.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (vb1 != null) {
vb1.vibrate(300);
}
FragmentTransaction transaction = getFragmentManager().beginTransaction();
Fragment frag = IntroFragment2.newInstance();
transaction.replace(R.id.containerIntroScreen, frag);
transaction.commit();
}
});
}//End of onViewCreated
}
This is the XML of first Fragment. The next Button should take me to next fragment-
<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:background="#color/colorPrimaryDark"
android:orientation="vertical"
android:weightSum="1"
tools:context="com.example.fitbitsampleapp.AppIntroTabbedView.IntroFragment1">
<TextView
android:visibility="gone"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fontFamily="casual"
android:text="Track your daily activities. Stay healthy, Stay smart."
android:textSize="26dp" />
<Button
android:id="#+id/skipIntoButton"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_marginBottom="20dp"
android:layout_marginRight="20dp"
android:layout_weight="1"
android:background="#drawable/background_button"
android:fontFamily="casual"
android:text="skip"
android:textAllCaps="true"
android:textAppearance="#android:style/TextAppearance.DeviceDefault.Large"
android:textColor="#000" />
<Button
android:id="#+id/nextTabButtonIntro"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_marginBottom="20dp"
android:layout_marginRight="20dp"
android:layout_weight="1"
android:background="#drawable/background_button"
android:fontFamily="casual"
android:text="next"
android:textAllCaps="true"
android:textAppearance="#android:style/TextAppearance.DeviceDefault.Large"
android:textColor="#000" />
</LinearLayout>
This is the fragment, I want to go to-
public class IntroFragment2 extends Fragment {
public IntroFragment2() {
// Required empty public constructor
}
public static android.support.v4.app.Fragment newInstance() {
IntroFragment2 fragment = new IntroFragment2();
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_intro2, container, false);
}
The XML of the 2nd Fragment-
<RelativeLayout 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:background="#color/colorAccent"
tools:context="com.example.fitbitsampleapp.AppIntroTabbedView.IntroFragment2">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:text="2nd fragment" />
</RelativeLayout>
This is the layout of activity which has the fragments-
<?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:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.fitbitsampleapp.AppIntroTabbedView.IntroScreen">
<android.support.v4.view.ViewPager
android:background="#00F111"
android:id="#+id/containerIntroScreen"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
So initially the app opens with 1st transaction as expected. However when I click on next button in fragment 1, it should take me to fragment 2. But it just shows the Background color of ViewPager after the Fragment Transaction.
EDIT:
Here is my Main Activity as well which has the fragments-
public class IntroScreen extends AppCompatActivity {
public static Vibrator vb1;
public Button nextScreen;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_intro_screen);
/***/
vb1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
/**
* Create the adapter that will return a fragment
* for each of the N primary sections of the activity.
* */
SectionsPagerAdapter mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
/** Set up the ViewPager with the sections adapter.*/
ViewPager mViewPager = findViewById(R.id.containerIntroScreen);
mViewPager.setAdapter(mSectionsPagerAdapter);
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
private SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public android.support.v4.app.Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
switch (position) {
case 0:
return IntroFragment1.newInstance();
case 1:
return IntroFragment2.newInstance();
default:
return IntroFragment2.newInstance();
}
}
#Override
public int getCount() {
return 2;
}
}
}
SOLVED BY #MikeM. in the comments above.
Since I was already using a ViewPager, All that was required was to give the correct item number to my ViewPager.
int THE_POSITION_OF_THE_FRAGMENT_IN_VIEW_PAGER = 1;
mViewPager.setCurrentItem(THE_POSITION_OF_THE_FRAGMENT_IN_VIEW_PAGER);

Setonitemclicklistener inside fragment of tabbed activity

I'm new in android and I want to make a project, but I have a problem with inserting a list view inside fragment of tabbed activity which can pass to another activity when clicked. Before I asked here, I already tried to search the solution but it didn't work, I hope anyone in here can solve my problem.
Here's my code
Service Activity as a Tab host
public class ServiceActivity extends AppCompatActivity {
/**
* The {#link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {#link FragmentPagerAdapter} derivative, which will keep every
* loaded fragment in memory. If this becomes too memory intensive, it
* may be best to switch to a
* {#link android.support.v4.app.FragmentStatePagerAdapter}.
*/
private SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {#link ViewPager} that will host the section contents.
*/
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_service);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
//deleted PlaceHolderFragment
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
switch (position) {
case 0:
Sinspection sins = new Sinspection();
return sins;
case 1:
Minspection mins = new Minspection();
return mins;
case 2:
Linspection lins = new Linspection();
return lins;
case 3:
WRinspection wrins = new WRinspection();
return wrins;
default:
return null;
}
}
#Override
public int getCount() {
// Show total pages.
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "S Inspection";
case 1:
return "M Inspection";
case 2:
return "L Inspection";
case 3:
return "When Required";
}
return null;
}
}
Fragment Class
public class Linspection extends ListFragment {
String [] linsp = {
"Differential Oil and Filter",
"Hub and Reduction Gear Oil",
"Wheel Nut",
"Air Dryer Filter"
};
ArrayAdapter<String> adapter;
ListView listView;
#Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
listView = (ListView)getActivity().findViewById(R.id.listViewL);
adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.
simple_list_item_1,linsp);
setListAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
switch (position){
case 0:
Intent intent = new Intent(getActivity(), EngineOil.class);
startActivity(intent);
}
}
});
return super.onCreateView(inflater, container, savedInstanceState);
}
I want to pass to this activity
public class EngineOil extends AppCompatActivity {
ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.s_engine_oil);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
viewPager = (ViewPager) findViewById(R.id.viewPager);
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(this);
viewPager.setAdapter(viewPagerAdapter);
}
}
This is my xml:
activity_service
<RelativeLayout 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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listViewL"
>
</ListView>
</RelativeLayout>
activity destionation xml
<RelativeLayout 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.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:theme="?attr/actionBarTheme"
android:minHeight="?attr/actionBarSize"
android:id="#+id/toolbar3"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="#+id/viewPager"
android:layout_marginTop="20dp"
android:layout_below="#+id/toolbar3"
android:layout_alignParentStart="true">
</android.support.v4.view.ViewPager>
</RelativeLayout>
When I run the application it "always keep crashing". I don't know how to fix it, and hope you can help me to solve my problem
Thanks in advance
I made a project for you to use as reference.
`activity_main`
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TabHost
android:id="#+id/tabHost"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/tab1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/ll_cashier_invoice"
android:baselineAligned="false"
android:gravity="center_vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="4dip">
<fragment
android:id="#+id/frag_invoice"
android:name="com.example.sydney.sample.MainActivity$FirstFragment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/tab2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
<LinearLayout
android:id="#+id/tab3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
<LinearLayout
android:id="#+id/tab4"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
</FrameLayout>
</LinearLayout>
</TabHost>
</RelativeLayout>
`fragment1.xml`
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="#array/myArray" />
</LinearLayout>
`MainActivity.java`
public class MainActivity extends Activity {
ListView lv;
TabHost host;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
host = (TabHost)findViewById(R.id.tabHost);
host.setup();
lv = (ListView)findViewById(R.id.list);
TabHost.TabSpec spec = host.newTabSpec("Sinspection");
spec.setContent(R.id.tab1);
spec.setIndicator("Sinspection");
host.addTab(spec);
//Tab 2
spec = host.newTabSpec("Minspection");
spec.setContent(R.id.tab2);
spec.setIndicator("Minspection");
host.addTab(spec);
//Tab 3
spec = host.newTabSpec("Linspection");
spec.setContent(R.id.tab3);
spec.setIndicator("Linspection");
host.addTab(spec);
//Tab 4
spec = host.newTabSpec("Winspection");
spec.setContent(R.id.tab4);
spec.setIndicator("Winspection");
host.addTab(spec);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent myIntent = new Intent(MainActivity.this,NextActivity.class);
startActivity(myIntent);
}
});
}
public static class FirstFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment1, container, false);
}
}
}
Click here for the full code.

TabLayout text disappears when visibility goes from GONE to VISIBLE

I have a problem with the TabLayout in Android. I'm using AppCompat library because my min SDK is 10. The problem is that if the TabLayout has visibility GONE when the activity is first created, when I set the visibility to VISIBLE later, the tab tittles and tab indicator are missing.
Here is my MainActivity:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
/**
* Called when we press the button.
*/
public void openTabActivity(View view) {
Intent intent = new Intent(this, TabActivity.class);
startActivity(intent);
}
}
TabActivity is this:
public class TabActivity extends FragmentActivity {
MyPagerAdapter mMyPagerAdapter;
ViewPager mViewPager;
TabLayout mTabLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tab);
// ViewPager and its adapters use support library
// fragments, so use getSupportFragmentManager.
mMyPagerAdapter =
new MyPagerAdapter(
getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.myViewPager);
mViewPager.setAdapter(mMyPagerAdapter);
// Link the TabLayout with the ViewPager.
mTabLayout = (TabLayout) findViewById(R.id.myTab);
mTabLayout.setupWithViewPager(mViewPager);
// If I set visibility GONE it doesn't show titles
// when I set it to VISIBLE again.
// If I remove this, it works fine.
mTabLayout.setVisibility(View.GONE);
}
/**
* If the tab is visible it turn it gone, if it's gone it turn it
* visible.
* #param view
*/
public void toggleTab(View view) {
Log.d(this.getClass().toString(), "ShowTab()");
if (mTabLayout.getVisibility() == View.VISIBLE) {
Log.d(this.getClass().toString(), "Turning GONE");
mTabLayout.setVisibility(View.GONE);
} else {
Log.d(this.getClass().toString(), "Turning VISIBLE");
mTabLayout.setVisibility(View.VISIBLE);
}
}
}
Page adapter:
public class MyPagerAdapter extends FragmentStatePagerAdapter {
final int PAGE_COUNT = 3;
private String tabTitles[] = new String[]{"Tab 1", "Tab 2", "Tab 3"};
public MyPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
Fragment fragment = new MyFragment();
return fragment;
}
#Override
public int getCount() {
return PAGE_COUNT;
}
#Override
public CharSequence getPageTitle(int position) {
// Generate title based on item position
return tabTitles[position];
}
}
Fragment:
public class MyFragment extends Fragment {
public static MyFragment newInstance() {
MyFragment fragment = new MyFragment();
return fragment;
}
#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.my_fragment, container, false);
return view;
}
}
Layouts are very simple too:
activity_main.xml
<RelativeLayout 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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<Button
android:layout_width="match_parent"
android:layout_height="200dp"
android:onClick="openTabActivity"
android:textColor="#55F"
android:text="Press to go to Tabs"/>
</RelativeLayout>
activity_tab.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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".TabActivity">
<android.support.design.widget.TabLayout
android:id="#+id/myTab"
style="#style/AppTheme.Tab.NavigationTab"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/lightPrimaryColor"/>
<android.support.v4.view.ViewPager
android:id="#+id/myViewPager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1"/>
</LinearLayout>
my_fragment.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=".MyFragment">
<Button
android:layout_width="200dp"
android:layout_height="200dp"
android:onClick="toggleTab"
android:text="Press"/>
</FrameLayout>
If i set visibility GONE in TabActivity.onCreate it fails. If it's VISIBLE in TabActivity.onCreate it works.
I've tried to use .invalidate() but it doesn't work.
Can anybody help me?
Thanks in advance for your help.
Confirmed. It's a bug in library com.android.support:design:22.2.1. If I use com.android.support:design:22.2.0 it works perfectly. It will be solved in future releases of the library.
Here is the issue in code.google.com
Not sure if its the same issue but something similar was happening to me when I didn't have tabTextColor and tabSelectedTextColor style attributes set.
Broke when upgraded to com.android.support:support-v13:23.1.1 from 22.2.0, solved with following style:
<style name="exploreTabLayout" parent="Widget.Design.TabLayout">
<item name="tabIndicatorColor">#color/accent_teal</item>
<item name="tabIndicatorHeight">4dp</item>
<item name="tabTextColor">#color/bismark_blue</item>
<item name="tabSelectedTextColor">#color/accent_teal</item>
</style>

Layout in ViewPager being replaced

I have a ViewPager layout like the one below. However, the LinearLayout within the ViewPager disappears and is replaced by the content I'm loading into the ViewPager.
activity_main.xml
<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"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<com.astuetz.PagerSlidingTabStrip
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="60dp"
app:pstsTabTextAlpha="150"
app:pstsIndicatorHeight="3dp"
app:pstsShouldExpand="true"
app:pstsUnderlineHeight="0dp"
app:pstsTabTextSize="14dp"
/>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/tabs">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<ImageView
android:layout_width="120dp"
android:layout_height="120dp"
android:id="#+id/image"
android:layout_gravity="center_horizontal"
android:layout_marginTop="5dp"
android:background="#drawable/ic_image"
android:adjustViewBounds="true"
android:scaleType="centerCrop" />
</LinearLayout>
</android.support.v4.view.ViewPager>
</LinearLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity
implements FirstFragment.OnFragmentInteractionListener,
SecondFragment.OnFragmentInteractionListener,
ThirdFragment.OnFragmentInteractionListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialize the ViewPager and set an adapter
ViewPager pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(new PagerAdapter(getSupportFragmentManager()));
// Bind the tabs to the ViewPager
PagerSlidingTabStrip tabs = (PagerSlidingTabStrip) findViewById(R.id.tabs);
tabs.setViewPager(pager);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_group, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void onFragmentInteraction(Uri uri){
//
}
private class PagerAdapter extends FragmentPagerAdapter {
private final String[] TITLES = {"First", "Second", "Third"};
public PagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public CharSequence getPageTitle(int position) {
return TITLES[position];
}
#Override
public int getCount() {
return TITLES.length;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new FirstFragment();
case 1:
return new SecondFragment();
case 2:
return new ThirdFragment();
}
return null;
}
}
}
FirstFragment.java
public class FirstFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
String BASE_URL = "http://www.example.com/api";
private OnFragmentInteractionListener mListener;
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment FirstFragment.
*/
// TODO: Rename and change types and number of parameters
public static FirstFragment newInstance(String param1, String param2) {
FirstFragment fragment = new FirstFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
public FirstFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_first, container, false);
final ListView listView = (ListView) view.findViewById(R.id.listview_posts);
final ArrayList<Post> postArray = new ArrayList<Post>();
// REST API
final RestAdapter restAdapter = new RestAdapter.Builder()
.setEndpoint(BASE_URL)
.build();
final ApiEndpointInterface apiService = restAdapter.create(ApiEndpointInterface.class);
apiService.getData(1, new Callback<PostData>() {
#Override
public void success(PostData postData, Response response) {
final PostAdapter adapter = new PostAdapter(getActivity(), postArray);
postArray.addAll(postData.getData());
listView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
#Override
public void failure(RetrofitError retrofitError) {
retrofitError.printStackTrace();
}
});
return view;
}
class Deserializer implements JsonDeserializer<Post> {
#Override
public Post deserialize(JsonElement je, Type type, JsonDeserializationContext jdc)
throws JsonParseException {
// Get the "content" element from the parsed JSON
JsonElement content = je.getAsJsonObject().get("data");
// Deserialize it. You use a new instance of Gson to avoid infinite recursion
// to this deserializer
return new Gson().fromJson(content, Post.class);
}
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mListener = (OnFragmentInteractionListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
public void onFragmentInteraction(Uri uri);
}
}
fragment_first.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"
tools:context="com.project.app.FirstFragment">
<ListView
android:id="#+id/listview_posts"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:dividerHeight="0dp"
android:divider="#null" />
</LinearLayout>
Why is it replacing everything in the ViewPager? How can I instead append the data to the ViewPager, such that the data goes below the layout in the ViewPager?
You can't do that... The viewpager will always do this.. yiu may need to put the layouts outside the viewpager.. in a way the makes user feel they are inside...
you should include this components in Fragment layout
<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="com.project.app.FirstFragment">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<ImageView
android:layout_width="120dp"
android:layout_height="120dp"
android:id="#+id/image"
android:layout_gravity="center_horizontal"
android:layout_marginTop="5dp"
android:background="#drawable/ic_image"
android:adjustViewBounds="true"
android:scaleType="centerCrop" />
</LinearLayout>
<ListView
android:id="#+id/listview_posts"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:dividerHeight="0dp"
android:divider="#null" />
</LinearLayout>
or place them under ViewPager like this
<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"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<com.astuetz.PagerSlidingTabStrip
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="60dp"
app:pstsTabTextAlpha="150"
app:pstsIndicatorHeight="3dp"
app:pstsShouldExpand="true"
app:pstsUnderlineHeight="0dp"
app:pstsTabTextSize="14dp"
/>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/tabs">
</android.support.v4.view.ViewPager>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<ImageView
android:layout_width="120dp"
android:layout_height="120dp"
android:id="#+id/image"
android:layout_gravity="center_horizontal"
android:layout_marginTop="5dp"
android:background="#drawable/ic_image"
android:adjustViewBounds="true"
android:scaleType="centerCrop" />
</LinearLayout>
</LinearLayout>

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