The ViewPager doesn't scroll at al after refreshing the data

The ViewPager doesn't scroll at al after refreshing the data - android

I have an activity which has a coordinator layout with viewpager and CircularPager Indicator. I am trying to use MaterialRefreshLayout Library to do pull to refresh
The library can be found at Pull to refresh library
However, after I use pull to refresh my data, the viewpager just doesn't update the rest of the fragment and hence it dosn't scroll. Once I do background foreground it scrolls alright. Below is the Layout and activity
<?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="myPackage.HomeActivity">
<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:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<com.cjj.MaterialRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/refresh"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:overlay="true"
app:progress_show_arrow="true"
app:wave_show="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_marginTop="65dp"
android:orientation="vertical">
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="#dimen/viewpager_height_none"
android:layout_weight="1"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<mypackage.ui.CirclePageIndicator
android:id="#+id/indicator"
style="#style/PageIndicator"
android:clickable="false"
app:fillColor="#color/default_circle_indicator_stroke_color"
app:pageColor="#color/circlepageindicator_fill_color"
app:radius="#dimen/circlepageindicator_radius" />
</LinearLayout>
</com.cjj.MaterialRefreshLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
And Below is the Activity
public class HomeActivity extends AppCompatActivity {
private SectionPagerAdapter mSectionPagerAdapter;
/**
* The {#link ViewPager} that will host the section contents.
*/
private ViewPager mViewPager;
private CirclePageIndicator mPagerCountIndicator;
private MaterialRefreshLayout materialRefreshLayout;
private Integer mTaskCount;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Bundle extras = getIntent().getExtras();
if(extras != null) {
mTaskCount= extras.getInt("task_Count");
}
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
updateandShowViewPager();
materialRefreshLayout = (MaterialRefreshLayout) findViewById(R.id.refresh);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
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
protected void onResume() {
super.onResume();
materialRefreshLayout.setMaterialRefreshListener(new MaterialRefreshListener() {
#Override
public void onRefresh(MaterialRefreshLayout materialRefreshLayout) {
refresh();
}
});
materialRefreshLayout.finishRefresh();
}
#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_home, 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);
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB) // API 11
private void startMyAsyncTask(AsyncTask asyncTask){
//execute my AsyncTask and call Update and Show ViewPager
}
private void updateandShowViewPager(){
AsyncTaskCallBack asyncTaskCallBack = new AsyncTaskCallBack() {
#Override
public void onSuccess() {
displayViewPager();
}
}
};
for(int taskCount = 1; taskCount <= mTaskCount; taskCount ++){
myAsyncTask = new MyAsyncTask();
startMyAsyncTask(myAsyncTask );
}
}
private void displayViewPager(){
mSectionPagerAdapter = new SectionPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionPagerAdapter);
mTaskCountIndicator = (CirclePageIndicator) findViewById(R.id.indicator);
mTaskCountIndicator .setViewPager(mViewPager);
}
private void refresh() {
MyAsyncTask myAsyncTask = null;
MyAsyncTaskCallBack myAsyncTaskCallBack = new MyAsyncTaskCallBack () {
#Override
public void onSuccess() {
updateViewPager();
}
}
};
for(int taskCount = 1; taskCount <= mTaskCount; taskCount ++){
myAsyncTask = new MyAsyncTask();
startMyAsyncTask(myAsyncTask );
}
}
private void updateViewPager(){
mSectionPagerAdapter.setPagerItem(myMap);
mSectionPagerAdapter.notifyDataSetChanged();
mCartCountIndicator.notifyDataSetChanged();
mViewPager.invalidate();
}
}
Not Sure what am I doing wrong here. Appreciate any suggestion.

use
mViewPager.setOffscreenPageLimit(numberOfPages);

Okay, figured since it is the activity that is not being refreshed itself I tried this.onResume() in the refresh method once I do notifyDataSetChanged(). It works.
Not sure it is the cleanest solution though

Related

Fullscreen Dialog Fragment not showing correctly

I've got two problems:
In my app I have an activity with the appbar and a recycler view.
When i click an option of the floating action menu it displays a Fullscreen Dialogfragment but for some reason the dialog is not showing correctly (not totaly fullscreen).
Here is the result
dialogfragment
Also when I click the close button of the Dialog it closes not only the dialog, but the activity as well, and goes to the previous activity.
What should I do. I am beginning Android.
also I want to establish a margin for the cardview (left and right)
Here is my code
Result_contract.java
public class Result_contract extends AppCompatActivity implements
FragmentActions{
String TAG="Result_contract";
private boolean first_time= true;
private List<Contract>lista_contratos;
private FloatingActionsMenu fabm;
private RecyclerView recycler;
private RecyclerView.Adapter adapter;
private RecyclerView.LayoutManager lManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result_contract);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle("Contratos");//Set title
getSupportActionBar().setDisplayHomeAsUpEnabled(true);//Enable Back button
fabm= (FloatingActionsMenu)findViewById(R.id.menu_fab);
View fab_buscar = findViewById(R.id.accion_buscar);
fab_buscar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
showSearchDialog();
}
});
View fab_formulario = findViewById(R.id.accion_formulario);
fab_formulario.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
showDetailsDialog(0);
}
});
recycler = (RecyclerView) findViewById(R.id.reciclador);
recycler.setHasFixedSize(true);
lManager = new LinearLayoutManager(this);
recycler.setLayoutManager(lManager);
//todo REMOVER ESTO
//SearchContractTask buscar = new SearchContractTask(Contract_query_instance.getInstance().getContractQuery());
//buscar.execute();
SearchContractTask buscar = new SearchContractTask(null);
buscar.execute();
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// app icon in action bar clicked; goto parent activity.
this.finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void showDetailsDialog(int position) {
fabm.collapse();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
Fragment fragment=new Dialog_contract();
Bundle args=new Bundle();
args.putInt("position",position);
fragment.setArguments(args);
transaction.add(android.R.id.content, fragment,"dialog_contract").addToBackStack(null).commit();
}
#Override
public void showSearchDialog() {
fabm.collapse();
}
#Override
public void load_data() {
}
public class SearchContractTask extends AsyncTask<Void, Void, Void> {
Connection cnx;
Models models;
Contract_query query;
public SearchContractTask(Contract_query query) {
super();
cnx = Connection.getConnection();
models= Models.getInstance();
this.query=query;
}
#Override
protected Void doInBackground(Void... voids) {
lista_contratos=Contract_list.getInstance().getList_contract();
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
if (lista_contratos!=null) {
adapter = new Contract_adapter(lista_contratos);
recycler.setAdapter(adapter);
}
else {
//TODO MOSTRAR UN MENSAJE DE QUE NO EXISTEN FILAS EN LA CONSULTA
}
}
#Override
protected void onCancelled() {
}
}
#Override public boolean dispatchTouchEvent(MotionEvent event){
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (fabm.isExpanded()) {
Rect outRect = new Rect();
fabm.getGlobalVisibleRect(outRect);
if(!outRect.contains((int)event.getRawX(), (int)event.getRawY()))
fabm.collapse();
}
}
return super.dispatchTouchEvent(event);
}
#Override
public void onBackPressed() {
if (fabm.isExpanded()) {
fabm.collapse();
}
else{
finish();
}
//super.onBackPressed();
}
}
activity_reult_contract.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"
android:fitsSystemWindows="true"
tools:context="com.example.ernesto.apptranscargo.Result_contract">
<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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_result_contract" />
<com.getbase.floatingactionbutton.FloatingActionsMenu
android:id="#+id/menu_fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:layout_margin="#dimen/fab_margin"
app:fab_labelStyle="#style/Etiquetas"
app:fab_addButtonColorNormal="?attr/colorPrimary"
app:fab_addButtonSize="normal"
app:fab_labelsPosition="left">
<com.getbase.floatingactionbutton.FloatingActionButton
android:id="#+id/accion_formulario"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:fab_colorNormal="?attr/colorAccent"
app:fab_icon="#drawable/ic_tablet"
app:fab_size="normal"
app:fab_title="Formulario" />
<com.getbase.floatingactionbutton.FloatingActionButton
android:id="#+id/accion_buscar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:fab_colorNormal="?attr/colorAccent"
app:fab_icon="#drawable/ic_search"
app:fab_size="normal"
app:fab_title="Nueva Búsqueda" />
</com.getbase.floatingactionbutton.FloatingActionsMenu>
</android.support.design.widget.CoordinatorLayout>
content_result_contract.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/reciclador"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="3dp"
android:layout_marginTop="20dp"
android:scrollbars="vertical" />
Dialog_contract.java
public class Dialog_contract extends DialogFragment implements DialogActions {
public static final String TAG = "fragment_dialog";
private TabLayout Tabs;
private Form_contract_detail fragment_detalles;
private Form_contract_observation fragment_obseration;
private Fragment fragment_observation;
View view_contract;
ViewPager pager;
PagerAdapter pagerAdapter;
Toolbar toolbar;
String title="Detalles ";
int cantidad;
public Dialog_contract(){
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public void Dismiss()
{
getDialog().dismiss();
}
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState) {
cantidad= Contract_list.getInstance().getList_contract().size();
view_contract=inflater.inflate(R.layout.dialog_contract, container, false);
pager=(ViewPager)view_contract.findViewById(R.id.pager);
pagerAdapter= new Dialog_contract_adapter(getActivity(), getChildFragmentManager(),Contract_list.getInstance().getList_contract().size());
toolbar = (Toolbar) view_contract.findViewById(R.id.toolbar);
((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
actionBar.setHomeAsUpIndicator(android.R.drawable.ic_menu_close_clear_cancel);
}
setHasOptionsMenu(true);
int position=getArguments().getInt("position", -1);
pager.setAdapter(pagerAdapter);
pager.setPageTransformer(true, new ZoomOutPageTransformer());
//pager.setPageTransformer(true,new DepthPageTransformer() );
pager.setCurrentItem(position);
pager.addOnPageChangeListener(new ViewPager.OnPageChangeListener(){
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
updateTitle();
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
updateTitle();
return view_contract;
}
#NonNull
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Dialog dialog = super.onCreateDialog(savedInstanceState);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
return dialog;
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
menu.clear();
getActivity().getMenuInflater().inflate(R.menu.dialog_contract_menu, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_next) {
pager.setCurrentItem(pager.getCurrentItem() + 1);
updateTitle();
return true;
} else if (id==R.id.action_previous)
{
pager.setCurrentItem(pager.getCurrentItem() - 1);
updateTitle();
return true;
}
else if (id == android.R.id.home) {
// handle close button click here
dismiss();
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void updateTitle() {
toolbar.setTitle(title+String.valueOf(pager.getCurrentItem()+1)+"/"+cantidad);
}
}
dialog_contract.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"
android:paddingTop="24dp"
android:fitsSystemWindows="true"
>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay"
android:fitsSystemWindows="false"
>
<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:fitsSystemWindows="false"/>
</android.support.design.widget.AppBarLayout>
<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:background="#ffffff"
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"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.PagerTabStrip
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"/>
</android.support.v4.view.ViewPager>
</LinearLayout>

First of all your dialog layout has top padding so that why it has no full height.
dialog_contract.xml
<android.support.design.widget.CoordinatorLayout
...
android:paddingTop="24dp"
>
Second of all try following java naming convention since your code is realy hard to read
Also when I click the close button of the Dialog it closes not only the dialog, but the activity as well, and goes to the previous activity.
My best guess is that you are not handling menu clicks correctly, try calling
setHasOptionsMenu(true);
from dialogFragmen onCreate

How to implement MiniDrawer using mikepenz/MaterialDrawer

I am trying to implement MiniDrawer using mikepenz/MaterialDrawer github library. I could get some result as below picture. but the top part of MiniDrawer is hidden by Toolbar. How can i solve this problem.
This is MainActivity.Java
public class MainActivity extends AppCompatActivity {
private Drawer result = null;
private MiniDrawer miniResult = null;
private Crossfader crossFader;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
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();
}
});
result = new DrawerBuilder()
.withActivity(this)
.withToolbar(toolbar)
.withTranslucentNavigationBar(false)
.addDrawerItems(
new PrimaryDrawerItem().withName(R.string.drawer_item_compact_header).withIcon(GoogleMaterial.Icon.gmd_wb_sunny).withIdentifier(1),
new PrimaryDrawerItem().withName(R.string.drawer_item_action_bar_drawer).withIcon(FontAwesome.Icon.faw_home).withBadge("22").withBadgeStyle(new BadgeStyle(Color.RED, Color.RED)).withIdentifier(2).withSelectable(false),
new PrimaryDrawerItem().withName(R.string.drawer_item_multi_drawer).withIcon(FontAwesome.Icon.faw_gamepad).withIdentifier(3),
new PrimaryDrawerItem().withName(R.string.drawer_item_non_translucent_status_drawer).withIcon(FontAwesome.Icon.faw_eye).withIdentifier(4),
new PrimaryDrawerItem().withDescription("A more complex sample").withName(R.string.drawer_item_advanced_drawer).withIcon(GoogleMaterial.Icon.gmd_adb).withIdentifier(5),
new SectionDrawerItem().withName(R.string.drawer_item_section_header),
new SecondaryDrawerItem().withName(R.string.drawer_item_open_source).withIcon(FontAwesome.Icon.faw_github),
new SecondaryDrawerItem().withName(R.string.drawer_item_contact).withIcon(GoogleMaterial.Icon.gmd_format_color_fill).withTag("Bullhorn"),
new DividerDrawerItem(),
new SwitchDrawerItem().withName("Switch").withIcon(Octicons.Icon.oct_tools).withChecked(true).withOnCheckedChangeListener(onCheckedChangeListener),
new ToggleDrawerItem().withName("Toggle").withIcon(Octicons.Icon.oct_tools).withChecked(true).withOnCheckedChangeListener(onCheckedChangeListener)
) // add the items we want to use with our Drawer
.withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
#Override
public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
if (drawerItem instanceof Nameable) {
Toast.makeText(MainActivity.this, ((Nameable) drawerItem).getName().getText(MainActivity.this), Toast.LENGTH_SHORT).show();
}
return false;
}
})
.withGenerateMiniDrawer(true)
.withSavedInstance(savedInstanceState)
.buildView();
miniResult = result.getMiniDrawer();
int firstWidth = (int) UIUtils.convertDpToPixel(300, this);
int secondWidth = (int) UIUtils.convertDpToPixel(72, this);
crossFader = new Crossfader()
.withContent(findViewById(R.id.main_content))
.withFirst(result.getSlider(), firstWidth)
.withSecond(miniResult.build(this), secondWidth)
.withSavedInstance(savedInstanceState)
.build();
miniResult.withCrossFader(new CrossfadeWrapper(crossFader));
//define a shadow (this is only for normal LTR layouts if you have a RTL app you need to define the other one
crossFader.getCrossFadeSlidingPaneLayout().setShadowResourceLeft(R.drawable.material_drawer_shadow_left);
}
private OnCheckedChangeListener onCheckedChangeListener = new OnCheckedChangeListener() {
#Override
public void onCheckedChanged(IDrawerItem drawerItem, CompoundButton buttonView, boolean isChecked) {
if (drawerItem instanceof Nameable) {
Log.i("material-drawer", "DrawerItem: " + ((Nameable) drawerItem).getName() + " - toggleChecked: " + isChecked);
} else {
Log.i("material-drawer", "toggleChecked: " + isChecked);
}
}
};
#Override
protected void onSaveInstanceState(Bundle outState) {
//add the values which need to be saved from the drawer to the bundle
outState = result.saveInstanceState(outState);
//add the values which need to be saved from the crossFader to the bundle
outState = crossFader.saveInstanceState(outState);
super.onSaveInstanceState(outState);
}
#Override
public void onBackPressed() {
//handle the back press :D close the drawer first and if the drawer is closed close the activity
if (crossFader != null && crossFader.isCrossFaded()) {
crossFader.crossFade();
} else {
super.onBackPressed();
}
}
#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);
menu.findItem(R.id.menu_1)
.setIcon(new IconicsDrawable(this, FontAwesome.Icon.faw_repeat)
.color(Color.WHITE).actionBar());
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.menu_1:
crossFader.crossFade();
return true;
case R.id.act_settings:
return true;
default:
}
return super.onOptionsItemSelected(item);
}
}
This is activity_main.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"
android:fitsSystemWindows="true"
tools:context="com.sldroids.minidrawer_v3.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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>

#sendtodilanka the problem is that you add the Crosssfader as the parent of the main_content view, which is a direct child of your CoordinatorLayout.
As the CoordinatorLayout is similar to the FrameLayout and does overlap views your Crossfader will simply be displayed below the AppBarLayout which you have defined to be over the main_content.
To get the Crossfader below the Toolbar you should add a new View around your main_content, let's choose a FrameLayout which has the attribute (don't forget to define the appBarLayout id to your AppBarLayout)
xml
app:layout_behavior="#string/appbar_scrolling_view_behavior"
After this the Crossfader will get inflated as a child of the FrameLayout we added above, which is displayed below the AppBarLayout.
A more detailed information regarding this can be found here.
So your layout will look something like this:
<?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"
android:fitsSystemWindows="true"
tools:context="com.sldroids.minidrawer_v3.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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<include layout="#layout/content_main" />
</FrameLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>

Navigation Drawer is not displaying and no error is thrown

The following code is of BaseActivity and this activity is used to implement navigation drawer for different activity
public class BaseActivity extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener {
private NavigationView navigationView;
private DrawerLayout fullLayout;
private Toolbar toolbar;
private ActionBarDrawerToggle drawerToggle;
private int selectedNavItemId;
#Override
public void setContentView(#LayoutRes int layoutResID) {
fullLayout = (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_base, null);
FrameLayout activityContainer = (FrameLayout) fullLayout.findViewById(R.id.activity_content);
getLayoutInflater().inflate(layoutResID, activityContainer, true);
/**
* Note that we don't pass the child's layoutId to the parent,
* instead we pass it our inflated layout.
*/
super.setContentView(fullLayout);
toolbar = (Toolbar) findViewById(R.id.toolbar);
navigationView = (NavigationView) findViewById(R.id.navigationView);
if (useToolbar())
{
setSupportActionBar(toolbar);
}
else
{
toolbar.setVisibility(View.GONE);
}
setUpNavView();
}
protected boolean useToolbar()
{
return true;
}
protected void setUpNavView()
{
navigationView.setNavigationItemSelectedListener(this);
if( useDrawerToggle()) { // use the hamburger menu
drawerToggle = new ActionBarDrawerToggle(this, fullLayout, toolbar,
R.string.nav_drawer_opened,
R.string.nav_drawer_closed);
fullLayout.setDrawerListener(drawerToggle);
drawerToggle.syncState();
} else if(useToolbar() && getSupportActionBar() != null) {
// Use home/back button instead
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(getResources()
.getDrawable(R.drawable.abc_ic_ab_back_mtrl_am_alpha));
}
}
protected boolean useDrawerToggle()
{
return true;
}
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
fullLayout.closeDrawer(GravityCompat.START);
selectedNavItemId = menuItem.getItemId();
return onOptionsItemSelected(menuItem);
}
#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
switch (id)
{
case R.id.action_main:
startActivity(new Intent(this, MainActivity.class));
return true;
case R.id.action_order:
startActivity(new Intent(this, Orders.class));
return true;
case R.id.rate_card:
startActivity(new Intent(this,RateCard.class));
return true;
}
return super.onOptionsItemSelected(item);
}
And here is xml file design which is used for implementation purpose
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
android:id="#+id/activity_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:background="?attr/colorPrimary"
app:theme="#style/MainActionBar"/>
<FrameLayout
android:id="#+id/activity_content"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigationView"
android:layout_width="wrap_content"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/menu_base"/>
</android.support.v4.widget.DrawerLayout>
I tried all thing but not getting proper way to implement.Any suggestion how to correct this will be helpful

Navigation drawer implementation with activities using inheritance

In my app I have to use navigation drawer with all activities. So I have created a base activity called DrawerActivity. I wrote the code for navigation drawer in DrawerActivity and then extended the UserDashBoardActivity from DrawerActivity.
The problem is that DrawerActivity properties aren't executed in UserDashBoardActivity. I can't interact with DrawerActivity in UserDashBoardActivity. Here that drawer menu is in ActionBar in all the activities.
This is my DrawerActivity
public class DrawerActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.drawer_list_view);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
mDrawerItems = getResources().getStringArray(R.array.navigation_drawer_items_array);
//mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
mDrawerList.setAdapter(new ArrayAdapter<String>(
this, R.layout.drawer_list_items, mDrawerItems));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this,
mDrawerLayout, R.drawable.ic_menu,
R.string.drawer_open, R.string.drawer_close) {
public void onDrawerOpened(View view) {
invalidateOptionsMenu();
}
public void onDrawerClosed(View view) {
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
for (int index = 0; index < menu.size(); index++) {
MenuItem menuItem = menu.getItem(index);
if (menuItem != null) {
// hide the menu items if the drawer is open
menuItem.setVisible(!drawerOpen);
}
}
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class DrawerItemClickListener implements ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
switch (position) {
case 0: {
Intent intent = new Intent(DrawerActivity.this, UserDashBoardActivity.class);
startActivity(intent);
break;
}
case 1: {
Intent intent = new Intent(DrawerActivity.this, AdmissionActivity.class);
startActivity(intent);
break;
}
default:
break;
}
mDrawerLayout.closeDrawer(mDrawerList);
}
}
This is my UseDashBoardActivity
public class UserDashBoardActivity extends DrawerActivity {
private Context context;
private ImageButton searchBtn;
private ImageButton favBtn;
private ImageButton profileBtn;
private ImageButton reminderBtn;
private ImageButton logoutBtn;
private ImageButton notificationBtn;
private ImageView seatchIcon;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
#Override
protected void onStart() {
super.onStart();
AppActivityStatus.setActivityStarted();
AppActivityStatus.setActivityContext(context);
}
#Override
protected void onPause() {
super.onPause();
AppActivityStatus.setActivityStoped();
}
#Override
protected void onResume() {
super.onResume();
AppActivityStatus.setActivityStarted();
}
#Override
protected void onStop() {
super.onStop();
AppActivityStatus.setActivityStoped();
}
#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_user_dash_boad, menu);
return true;
}
// delete the selected event from event list added here
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_notify:
return true;
case R.id.action_favourite:
return true;
case R.id.action_navigation:
}
return super.onOptionsItemSelected(item);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().setCustomView(R.layout.action_bar_layout);
setContentView(R.layout.user_dash_board);
context = getApplicationContext();
searchBtn = (ImageButton) findViewById(R.id.search_btn);
favBtn = (ImageButton) findViewById(R.id.fav_btn);
profileBtn = (ImageButton) findViewById(R.id.profile_btn);
reminderBtn = (ImageButton) findViewById(R.id.reminder_btn);
notificationBtn = (ImageButton) findViewById(R.id.notification_btn);
logoutBtn = (ImageButton) findViewById((R.id.logout_btn));
final EditText Search = (EditText)findViewById(R.id.emailAddress);
mDrawerList = (ListView)findViewById(R.id.drawer_layout);
searchBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent regAct = new Intent(getApplicationContext(), SearchActivity.class);
// Clears History of Activity
regAct.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(regAct);
}
});
favBtn.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View arg0){
Intent tabAct = new Intent(getApplicationContext(),TabHostActivity.class);
tabAct.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(tabAct);
}
});
profileBtn.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View arg0) {
Intent tabAct = new Intent(getApplicationContext(),AboutCollegeActivity.class);
tabAct.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(tabAct);
}
});
}
}
This is my actionbar xml
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:appmunu="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context="com.after2.svirtzone.after2_gradle.UserDashBoardActivity">
<item
android:id="#+id/action_notify"
android:icon="#drawable/mail_icon"
appmunu:showAsAction="always"
android:title="Notification" />
<item
android:id="#+id/action_favourite"
android:icon="#drawable/favourite_icon"
appmunu:showAsAction="always"
android:title="Favourite" />
<item
//this is the menu button for navigation drawer
android:id ="#+id/action_navigation"
android:icon="#drawable/ic_menu"
appmunu:showAsAction = "always"
android:title="navigation"
android:layout_gravity="left"/>
</menu>
This is the xml layout for navigationdrawer listview
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<FrameLayout
android:id="#+id/activity_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" ></FrameLayout>
<!-- The navigation drawer -->
<ListView
android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#111"
android:choiceMode="singleChoice"
android:divider="#android:color/transparent"
android:dividerHeight="0dp" />
</android.support.v4.widget.DrawerLayout>
This layout is UserDashboard 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:layout_gravity="center"
android:background="#color/appblue"
android:orientation="vertical">
<EditText
android:id="#+id/emailAddress"
android:layout_width="fill_parent"
android:layout_height="100dp"
android:background="#drawable/edit_text_style"
android:gravity="center|start"
android:hint="#string/edittext_hint"
android:inputType="textEmailAddress"
android:maxLength="40"
android:textSize="18sp"
android:visibility="gone" />
<ImageView
android:id="#+id/search_icon_btn"
android:layout_width="wrap_content"
android:layout_height="80dp"
android:layout_marginLeft="580dp"
android:layout_marginRight="10dp"
android:layout_marginTop="-90dp"
android:padding="5dp"
android:src="#drawable/search_icon" />
<ImageButton
android:id="#+id/search_btn"
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="5dp"
android:layout_marginRight="210dp"
android:layout_marginTop="30dp"
android:background="#drawable/search_blue"
android:gravity="center" />
<TextView
android:id="#+id/searchCollege"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="80dp"
android:layout_marginRight="100dp"
android:layout_marginTop="20dp"
android:text="#string/search_college"
android:textColor="#color/green"
android:textSize="30sp" />
<ImageButton
android:id="#+id/fav_btn"
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="200dp"
android:layout_marginRight="5dp"
android:layout_marginTop="-305dp"
android:background="#drawable/fav_blue"
android:gravity="center" />
<TextView
android:id="#+id/myFavourites"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="500dp"
android:layout_marginRight="10dp"
android:layout_marginTop="20dp"
android:text="#string/my_favourites"
android:textColor="#color/green"
android:textSize="30sp" />
</LinearLayout>
The UserDashboard activity is executed as it is but I need the property of DrawerActivity to be executed along with this activity. How to do it?

Let the parent Activity add the required ViewGroup as child of the FrameLayout. To achieve this, use the following method for DrawerActivity:
protected void addToContentView(int layoutResID)
{
// as part of onCreate() we had already
// setContentView(R.layout.activity_drawer);
if (layoutResID >= 0)
{
Toast.makeText(this, "activity content found", Toast.LENGTH_LONG).show();
FrameLayout fl = (FrameLayout)findViewById(R.id.activity_frame);
View.inflate(this, layoutResID, fl);
}
else
{
Toast.makeText(this, "activity content missing", Toast.LENGTH_LONG).show();
}
}
Then, in the onCreate() method of the child Activity:
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// call this instead of setContentView()
addToContentView(R.layout.activity_user_dashboard);
// put here your code as before...
}

Drawer's layout:
<?xml version="1.0" encoding="utf-8"?>
<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/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<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/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
/>
<!--you need to add everything to this frameLayout then only you will be able to access Navigation DrawerLayout-->
<FrameLayout
android:id="#+id/fragment"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
</LinearLayout>
<ListView
android:id="#+id/navigation_list"
android:layout_width="320dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:divider="#android:color/transparent"
android:dividerHeight="0dp"
android:fitsSystemWindows="true"
android:background="#color/white"
/>
</android.support.v4.widget.DrawerLayout>
The Activity with Drawer:(Only important code is shown)
public abstract class BaseDrawerLayoutActivity extends AppCompatActivity implements OnItemClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.base_drawer_layout_activity);
//rest of the things
//NOTE: loadNavMenu is abstract so that you can implement it in other activities as per you need, otherwise remove this and load it here itself
loadNavMenu();
}
protected abstract void loadNavMenu();
// call this method whenever you enter new activity and load the fragment here.
public void showFragment(Fragment object, String title) {
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.fragment, object);
transaction.commit();
}}
Those activities which need the drawer menu can inherit above class. Not inflate all the layout's inside FrameLayout only.
public class MainActivity extends BaseDrawerLayoutActivity {
public static final String TAG = OLMSActivity.class.getSimpleName();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//the method below will call the BaseDrawerLayoutActivity method and change the fragment for you to see.
showFragment(new MyProfileFragment(), "My Profile");
}
#Override
protected void loadNavMenu() {
NavItems.clear();
//load your menu items
}
private void loadNavFavourites(){
//todo
}}
MyProfileFragment is just a class with fragment and this one call inflate a layout in its OnCreateView method.

Title and subtitle in CollapsingToolbarLayout

I'm trying to create a profile activity like WhatsApp has, having 3 textviews not 2 like WhatsApp, the first two should stay in the toolbar when its collapsed and the last should fade out. but I can't figure out how, I've tried so much and here's my code
XML file:
<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/rootLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="250dp"
android:background="#drawable/img"
android:theme="#style/ThemeOverlay.AppCompat">
<com.ahmedroid.bayttask.CustomToolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="50dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="120dp"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:layout_scrollFlags="scroll|enterAlways"
app:tabIndicatorColor="#color/error_color"
app:tabSelectedTextColor="#color/error_color" />
<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" />
As you can see, I've tried to even create my custom view based on top of it but with no luck.
Java file:
public class ProfileActivity extends AppCompatActivity {
private ViewPager mViewPager;
private TabLayout mTabLayout;
private PagerAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile);
CustomToolbar collapsingToolbarLayout = new CustomToolbar(this);
collapsingToolbarLayout.setTitle("Ahmed Awad\n helloo");
mViewPager = (ViewPager) findViewById(R.id.viewPager);
mTabLayout = (TabLayout) findViewById(R.id.tabLayout);
mTabLayout.addTab(mTabLayout.newTab().setText("Profile"));
mTabLayout.addTab(mTabLayout.newTab().setText("Activity"));
adapter = new PagerAdapter
(getSupportFragmentManager(), mTabLayout.getTabCount());
mViewPager.setAdapter(adapter);
mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(mTabLayout));
mTabLayout.setOnTabSelectedListener(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) {
}
});
}
#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_profile, 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);
}
}
I've added the break line escape character but that didn't work because in the API they set it to single line.
enter code here

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.

The ViewPager doesn't scroll at al after refreshing the data - android

use mViewPager.setOffscreenPageLimit(numberOfPages);

Okay, figured since it is the activity that is not being refreshed itself I tried this.onResume() in the refresh method once I do notifyDataSetChanged(). It works. Not sure it is the cleanest solution though

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Navigation drawer implementation with activities using inheritance

Title and subtitle in CollapsingToolbarLayout

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