Develop Reference

Android Searchview back button color change

How to change the color of black arrow(Back button) in searchview
I have tried by customizing with below code
ImageView backid = (ImageView) searchViewAndroidActionBar.findViewById(R.id.search_button);
backid.setColorFilter(ContextCompat.getColor(Shopping_CategoriesCommon.this, R.color.white), PorterDuff.Mode.SRC_IN);
backid.setImageResource(R.drawable.search);
but it doesn't work

Add this attribute to your toolbar in xml file
app:collapseIcon
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="#dimen/toolbarHeight"
app:collapseIcon="#drawable/collapseBackIcon" />

After a day search i resolved it by adding app:collapseIcon="#drawable/back_arrow" to the custom toolbar
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:orientation="vertical"
app:collapseIcon="#drawable/back_arrow"/>

I could change the color using Reflection.
try {
final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
Field mCollapseIcon = toolbar.getClass().getDeclaredField("mCollapseIcon");
mCollapseIcon.setAccessible(true);
Drawable drw = (Drawable) mCollapseIcon.get(toolbar);
drw.setTint(color);
}
catch (Exception e) {
}

How to align action bar title to centre without using custom view

I want to align the action bar title to centre without the help of custom view . I would appreciate any help.
Without using the custom view, modifying only default action bar title

You can align the title to the center when you use ActionBar, but you can use Toolbar to do this.
Toolbar is more useful and easier than ActionBar, you can use this layout to define the center title TextView for you activity:
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="40dip">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/app_name" />
</android.support.v7.widget.Toolbar>
And use this code for a back button:
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.activity_toolbar);
Toolbar toolbar = (Toolbar) findViewById(R.id.single_toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
if(actionBar != null)
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
}
return super.onOptionsItemSelected(item);
}
You also need to override onCreateOptionsMenu method for the menu, and you can refer to this project : chrisbanes/cheesesquare.

Ok, You can try this:
<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" >
<TextView
android:textColor="#fff"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_gravity="center"
android:text="#string/app_name" />
</android.support.v7.widget.Toolbar>
And remember to add this line in your activity's java code:
getSupportActionBar.setTitle("");

It seems there is no way to do this without custom view. You can get the title view:
View decor = getWindow().getDecorView();
TextView title = (TextView) decor.findViewById(getResources().getIdentifier("action_bar_title", "id", "android"));
But changing of gravity or layout_gravity doesn't have an effect. The problem in the ActionBarView, which layout its children by itself so changing of layout params of its children also doesn't have an effect. To see this excecute following code:
ViewGroup actionBar = (ViewGroup) decor.findViewById(getResources().getIdentifier("action_bar", "id", "android"));
View v = actionBar.getChildAt(0);
ActionBar.LayoutParams p = new ActionBar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
p.gravity= Gravity.CENTER;
v.setLayoutParams(p);
v.setBackgroundColor(Color.BLACK);

Issue with setting android's appBar/toolbar title multiple times

I'm developing an android app and I'm stuck in organizing the layout in a input form activity. I would like to organize the layout of my activity like this sample (found in google android's docs): https://material-design.storage.googleapis.com/publish/material_v_4/material_ext_publish/0Bzhp5Z4wHba3Skg2b19UVS1LSmc/components_textfields_labels2.png . So a big app bar will contain one or two text field, referencing the name and the description of a user's activity, and within the activity layout's content the rest of input controls.
The behaviour I would reach is:
the activity title is initially empty and toolbar collapsed
when I get down the toolbar the text input appear and the user insert some text
when the user collapse the toolbar, the activity title (that is, the toolbar title) must be set to the input text value
The problem is that only one time this mechanism works: once set value and collapse the toolbar, when I get down again the toolbar, set the text input value and collapse the toolbar, the title is not setted, that is, setTitle has no effect over the first time.
I will now list my code: I tried to use a custom app bar layout, a collapsing tool bar layout, a toolbar and a text input in the following way:
<?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="wrap_content"
android:orientation="vertical"
tools:context="com.example.davide.inputformapp.MainActivity">
<com.example.davide.inputformapp.MyAppBarLayout.MyAppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="400dp"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="#dimen/activity_horizontal_margin"
app:expandedTitleMarginStart="#dimen/activity_horizontal_margin"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="parallax"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TextInputEditText
android:id="#+id/textInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</android.support.design.widget.CollapsingToolbarLayout>
</com.example.davide.inputformapp.MyAppBarLayout.MyAppBarLayout>
</android.support.design.widget.CoordinatorLayout>
where MyAppBarLayout is the class defined in this way(the code is not mine, I found here in a stackoverflow discussion):
public class MyAppBarLayout extends AppBarLayout
implements AppBarLayout.OnOffsetChangedListener {
private State state;
private OnStateChangeListener onStateChangeListener;
public MyAppBarLayout(Context context) {
super(context);
}
public MyAppBarLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (!(getLayoutParams() instanceof CoordinatorLayout.LayoutParams)
|| !(getParent() instanceof CoordinatorLayout)) {
throw new IllegalStateException(
"MyAppBarLayout must be a direct child of CoordinatorLayout.");
}
addOnOffsetChangedListener(this);
}
#Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
if (verticalOffset == 0) {
if (onStateChangeListener != null && state != State.EXPANDED) {
Log.d("MYAPP","---> EXPANDED");
onStateChangeListener.onStateChange(State.EXPANDED);
}
state = State.EXPANDED;
} else if (Math.abs(verticalOffset) >= appBarLayout.getTotalScrollRange()) {
if (onStateChangeListener != null && state != State.COLLAPSED) {
Log.d("MYAPP","---> COLLAPSED");
onStateChangeListener.onStateChange(State.COLLAPSED);
}
state = State.COLLAPSED;
} else {
if (onStateChangeListener != null && state != State.IDLE) {
Log.d("MYAPP","---> IDLE");
onStateChangeListener.onStateChange(State.IDLE);
}
state = State.IDLE;
}
}
public void setOnStateChangeListener(OnStateChangeListener listener) {
this.onStateChangeListener = listener;
}
public interface OnStateChangeListener {
void onStateChange(State toolbarChange);
}
public enum State {
COLLAPSED,
EXPANDED,
IDLE
}
}
The code in the main activity's onCreate() method is:
toolbar = (Toolbar) findViewById(R.id.toolbar);
textInput = (TextInputEditText) findViewById(R.id.textInput);
final MyAppBarLayout collapsableAppBar = (MyAppBarLayout) findViewById(R.id.appbar);
setSupportActionBar(toolbar);
setTitle(null);
collapsableAppBar.setOnStateChangeListener(new MyAppBarLayout.OnStateChangeListener() {
#Override
public void onStateChange(MyAppBarLayout.State toolbarChange) {
String value = textInput.getText().toString();
toolbar.setTitle(value);
}
});
Any suggestion?
Thanks,
davide

set "android:id" to CollapsingToolbarLayout. find it in activity and set title to it.
I have tried many answers but only setting title to CollapsingToolbarLayout worked.

Please try to replace
toolbar.setTitle(value)
with
getSupportActionBar().setTitle(value)
as mentioned in this answer

You have to change title like this :
instead of
toolbar.setTitle(value);
do
getSupportActionBar.setTitle(value);
on
setOnStateChangeListener

it may not be a good solution but one way to get every thing working is by creating custom action Bar
custom_actionbar.xml
<?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="100dp"
android:background="#drawable/yourcolorforactionbar" >
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:textAllCaps="true"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#fff"
android:textStyle="bold" />
<ImageView
android:id="#+id/myimage"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="8dp"
android:src="#drawable/yourimagetoset" />
<ImageButton
android:id="#+id/imageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="8dp"
android:background="#null"
android:src="#android:drawable/menubutoon" />
</RelativeLayout>
mainactivity.class
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar mActionBar = getActionBar();
mActionBar.setDisplayShowHomeEnabled(false);
mActionBar.setDisplayShowTitleEnabled(false);
LayoutInflater mInflater = LayoutInflater.from(this);
View mCustomView = mInflater.inflate(R.layout.custom_actionbar, null);
TextView mTitleTextView = (TextView) mCustomView.findViewById(R.id.title_text);
mTitleTextView.setText("My Own Title");
ImageButton imageButton = (ImageButton) mCustomView
.findViewById(R.id.imageButton);
imageButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getApplicationContext(), "Refresh Clicked!",
Toast.LENGTH_LONG).show();
}
});
mActionBar.setCustomView(mCustomView);
mActionBar.setDisplayShowCustomEnabled(true);
}
}

Hiding Scrolling activity title in android studio

I have created a Scrolling activity.
I want to hide this activity title (Banglalink Latest Offers).
But
I want to show activity title at this stage (Banglalink Latest Offers).
Is it possible to do?
If yes, how?

A bit late but I think this might help someone looking for a solution for this, you can simply set the text color to transparent.
Just add the below style to your styles.xml:
<style name="ToolBarTheme">
<item name="android:textColor">#android:color/transparent</item>
</style>
and add the following attribute to your CollapsingToolbarLayout:
app:expandedTitleTextAppearance="#style/ToolBarTheme"

Simply add this line to CollapsingToolbarLayout in your xml file:
app:titleEnabled="false"

Your best bet it to convert to a normal activity (with a scrollview as a child), start with the actionbar hidden (using the hide() call below (put it inside onCreate()).
Then put the coloured backgroiund at top of screen inside scrollview.
Finally, you can programmatically toggle between hiding your title (and actionbar), but showing your header background (or vice versa) when needed by adding a horizontal scroll listener/observer.
The listener will toggle the actionbar and header view depending on how far the user has scrolled down.
E.g:
Add observer inside onStart():
hsv.getViewTreeObserver().addOnScrollChangedListener(
new ViewTreeObserver.OnScrollChangedListener()
{ #Override public void onScrollChanged()
{
Log.i(TAG,"scroll:"+hsv.getScrollX());}});
// todo adjust scrollx value to decide on hide or show call:
if (hsv.getScrollX() > 100)
getActionBar().show();
mHeaderLayoutView.setVisibility(View.GONE);
else
getActionBar().hide();
mHeaderLayoutView.setVisibily(View.VISIBLE)
...
Note: hsv is a HorizontalScrollView works.
Note, if your are using the support libraries (E.g. you activity class extends AppCompatActivity), the code would change to:
getSupportActionBar().hide();
Im not sure if the getScrollX is in pixels or dp (job for you to research).
Hope this helps!

<resources>
<dimen name="app_bar_height">180dp</dimen>
<dimen name="fab_margin">16dp</dimen>
<dimen name="text_margin">16dp</dimen>
<!-- Default screen margins, per the Android Design guidelines. -->
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
<dimen name="appbar_padding_top">8dp</dimen>
</resources>
This must be your dimens.xml file. If you reduce the app_bar_height to 120dp or close... the text will be invisible. I dont know how to bring it back after collapse

This is working for me:
CollapsingToolbarLayout toolbarLayout = (CollapsingToolbarLayout)
findViewById(R.id.toolbar_layout);
toolbarLayout.setTitle(" ");

You have to remove the line android:theme="#style/AppTheme.AppBarOverlay"in your XML. Once you removed the title will go to background. So you able hide title of the activity. as an example, you can place a placeholder to hide it.
<?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">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="220dp"
android:fitsSystemWindows="true"
>
<!--android:theme="#style/AppTheme.AppBarOverlay"-->
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:toolbarId="#+id/toolbar">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_collapseMode="pin"
app:srcCompat="#drawable/place_holder" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="6dp"
android:layout_marginStart="6dp"
android:layout_marginTop="8dp"
android:src="#mipmap/next"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_display_shop" />
</android.support.design.widget.CoordinatorLayout>

you can use supportActionBar and change title with "" (string null)
setSupportActionBar(findViewById(R.id.toolbar))
findViewById<CollapsingToolbarLayout>(R.id.toolbar_layout).title = title
supportActionBar!!.title=""
supportActionBar!!.setDisplayHomeAsUpEnabled(true)
or you can change in findViewById
findViewById<CollapsingToolbarLayout>(R.id.toolbar_layout).title = title

Calling this method from onCreate()
initCollapsingToolbar();
Defining the method
private void initCollapsingToolbar() {
final CollapsingToolbarLayout collapsingToolbar =
(CollapsingToolbarLayout) findViewById(R.id.toolbar_layout);
collapsingToolbar.setTitle(" ");
AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.app_bar);
appBarLayout.setExpanded(true);
// hiding & showing the title when toolbar expanded & collapsed
appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
boolean isShow = false;
int scrollRange = -1;
#Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
if (scrollRange == -1) {
scrollRange = appBarLayout.getTotalScrollRange();
}
if (scrollRange + verticalOffset == 0) {
collapsingToolbar.setTitle("Your app title");
isShow = true;
} else if (isShow) {
collapsingToolbar.setTitle(" ");
isShow = false;
}
}
});
}

How to center align the ActionBar title in Android?

I am trying to use the following code to center the text in the ActionBar, but it aligns itself to the left.
How do you make it appear in the center?
ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle("Canteen Home");
actionBar.setHomeButtonEnabled(true);
actionBar.setIcon(R.drawable.back);

To have a centered title in ABS (if you want to have this in the default ActionBar, just remove the "support" in the method names), you could just do this:
In your Activity, in your onCreate() method:
getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getSupportActionBar().setCustomView(R.layout.abs_layout);
abs_layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tvTitle"
style="#style/TextAppearance.AppCompat.Widget.ActionBar.Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#FFFFFF" />
</LinearLayout>
Now you should have an Actionbar with just a title. If you want to set a custom background, set it in the Layout above (but then don't forget to set android:layout_height="match_parent").
or with:
getSupportActionBar().setBackgroundDrawable(getResources().getDrawable(R.drawable.yourimage));

I haven't had much success with the other answers... below is exactly what worked for me on Android 4.4.3 using the ActionBar in the support library v7. I have it set up to show the navigation drawer icon ("burger menu button")
XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/actionbar_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:maxLines="1"
android:clickable="false"
android:focusable="false"
android:longClickable="false"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="#FFFFFF" />
</LinearLayout>
Java
//Customize the ActionBar
final ActionBar abar = getSupportActionBar();
abar.setBackgroundDrawable(getResources().getDrawable(R.drawable.actionbar_background));//line under the action bar
View viewActionBar = getLayoutInflater().inflate(R.layout.actionbar_titletext_layout, null);
ActionBar.LayoutParams params = new ActionBar.LayoutParams(//Center the textview in the ActionBar !
ActionBar.LayoutParams.WRAP_CONTENT,
ActionBar.LayoutParams.MATCH_PARENT,
Gravity.CENTER);
TextView textviewTitle = (TextView) viewActionBar.findViewById(R.id.actionbar_textview);
textviewTitle.setText("Test");
abar.setCustomView(viewActionBar, params);
abar.setDisplayShowCustomEnabled(true);
abar.setDisplayShowTitleEnabled(false);
abar.setDisplayHomeAsUpEnabled(true);
abar.setIcon(R.color.transparent);
abar.setHomeButtonEnabled(true);

Define your own custom view with title text, then pass LayoutParams to setCustomView(), as Sergii says.
ActionBar actionBar = getSupportActionBar()
actionBar.setDisplayShowCustomEnabled(true);
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
actionBar.setCustomView(getLayoutInflater().inflate(R.layout.action_bar_home, null),
new ActionBar.LayoutParams(
ActionBar.LayoutParams.WRAP_CONTENT,
ActionBar.LayoutParams.MATCH_PARENT,
Gravity.CENTER
)
);
EDITED: At least for width, you should use WRAP_CONTENT or your navigation drawer, app icon, etc. WON'T BE SHOWN (custom view shown on top of other views on action bar). This will occur especially when no action button is shown.
EDITED: Equivalent in xml layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
This doesn't require LayoutParams to be specified.
actionBar.setCustomView(getLayoutInflater().inflate(R.layout.action_bar_home, null);

Just a quick addition to Ahmad's answer. You can't use getSupportActionBar().setTitle anymore when using a custom view with a TextView. So to set the title when you have multiple Activities with this custom ActionBar (using this one xml), in your onCreate() method after you assign a custom view:
TextView textViewTitle = (TextView) findViewById(R.id.mytext);
textViewTitle.setText(R.string.title_for_this_activity);

Code here working for me.
// Activity
public void setTitle(String title){
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
TextView textView = new TextView(this);
textView.setText(title);
textView.setTextSize(20);
textView.setTypeface(null, Typeface.BOLD);
textView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
textView.setGravity(Gravity.CENTER);
textView.setTextColor(getResources().getColor(R.color.white));
getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getSupportActionBar().setCustomView(textView);
}
// Fragment
public void setTitle(String title){
((AppCompatActivity)getActivity()).getSupportActionBar().setHomeButtonEnabled(true);
((AppCompatActivity)getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
TextView textView = new TextView(getActivity());
textView.setText(title);
textView.setTextSize(20);
textView.setTypeface(null, Typeface.BOLD);
textView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
textView.setGravity(Gravity.CENTER);
textView.setTextColor(getResources().getColor(R.color.white));
((AppCompatActivity)getActivity()).getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
((AppCompatActivity)getActivity()).getSupportActionBar().setCustomView(textView);
}

Without customview its able to center actionbar title.
It's perfectly working for navigation drawer as well
int titleId = getResources().getIdentifier("action_bar_title", "id", "android");
TextView abTitle = (TextView) findViewById(titleId);
abTitle.setTextColor(getResources().getColor(R.color.white));
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
abTitle.setGravity(Gravity.CENTER);
abTitle.setWidth(metrics.widthPixels);
getActionBar().setTitle("I am center now");

OK. After a lot of research, combined with the accepted answer above, I have come up with a solution that also works if you have other stuff in your action bar (back/home button, menu button). So basically I have put the override methods in a basic activity (which all other activities extend), and placed the code there. This code sets the title of each activity as it is provided in AndroidManifest.xml, and also does som other custom stuff (like setting a custom tint on action bar buttons, and custom font on the title). You only need to leave out the gravity in action_bar.xml, and use padding instead. actionBar != null check is used, since not all my activities have one.
Tested on 4.4.2 and 5.0.1
public class BaseActivity extends AppCompatActivity {
private ActionBar actionBar;
private TextView actionBarTitle;
private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().requestFeature(Window.FEATURE_CONTENT_TRANSITIONS);
super.onCreate(savedInstanceState);
...
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setElevation(0);
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
actionBar.setCustomView(R.layout.action_bar);
LinearLayout layout = (LinearLayout) actionBar.getCustomView();
actionBarTitle = (TextView) layout.getChildAt(0);
actionBarTitle.setText(this.getTitle());
actionBarTitle.setTypeface(Utility.getSecondaryFont(this));
toolbar = (Toolbar) layout.getParent();
toolbar.setContentInsetsAbsolute(0, 0);
if (this.getClass() == BackButtonActivity.class || this.getClass() == AnotherBackButtonActivity.class) {
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayShowHomeEnabled(true);
Drawable wrapDrawable = DrawableCompat.wrap(getResources().getDrawable(R.drawable.ic_back));
DrawableCompat.setTint(wrapDrawable, getResources().getColor(android.R.color.white));
actionBar.setHomeAsUpIndicator(wrapDrawable);
actionBar.setIcon(null);
}
else {
actionBar.setHomeButtonEnabled(false);
actionBar.setDisplayHomeAsUpEnabled(false);
actionBar.setDisplayShowHomeEnabled(false);
actionBar.setHomeAsUpIndicator(null);
actionBar.setIcon(null);
}
}
try {
ViewConfiguration config = ViewConfiguration.get(this);
Field menuKeyField = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");
if(menuKeyField != null) {
menuKeyField.setAccessible(true);
menuKeyField.setBoolean(config, false);
}
} catch (Exception ex) {
// Ignore
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (actionBar != null) {
int padding = (getDisplayWidth() - actionBarTitle.getWidth())/2;
MenuInflater inflater = getMenuInflater();
if (this.getClass() == MenuActivity.class) {
inflater.inflate(R.menu.activity_close_menu, menu);
}
else {
inflater.inflate(R.menu.activity_open_menu, menu);
}
MenuItem item = menu.findItem(R.id.main_menu);
Drawable icon = item.getIcon();
icon.mutate().mutate().setColorFilter(getResources().getColor(R.color.white), PorterDuff.Mode.SRC_IN);
item.setIcon(icon);
ImageButton imageButton;
for (int i =0; i < toolbar.getChildCount(); i++) {
if (toolbar.getChildAt(i).getClass() == ImageButton.class) {
imageButton = (ImageButton) toolbar.getChildAt(i);
padding -= imageButton.getWidth();
break;
}
}
actionBarTitle.setPadding(padding, 0, 0, 0);
}
return super.onCreateOptionsMenu(menu);
} ...
And my action_bar.xml is like this (if anyone is interested):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/actionbar_text_color"
android:textAllCaps="true"
android:textSize="9pt"
/>
</LinearLayout>
EDIT: If you need to change the title to something else AFTER the activity is loaded (onCreateOptionsMenu has already been called), put another TextView in your action_bar.xml and use the following code to "pad" this new TextView, set text and show it:
protected void setSubTitle(CharSequence title) {
if (!initActionBarTitle()) return;
if (actionBarSubTitle != null) {
if (title != null || title.length() > 0) {
actionBarSubTitle.setText(title);
setActionBarSubTitlePadding();
}
}
}
private void setActionBarSubTitlePadding() {
if (actionBarSubTitlePaddingSet) return;
ViewTreeObserver vto = layout.getViewTreeObserver();
if(vto.isAlive()){
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int padding = (getDisplayWidth() - actionBarSubTitle.getWidth())/2;
ImageButton imageButton;
for (int i = 0; i < toolbar.getChildCount(); i++) {
if (toolbar.getChildAt(i).getClass() == ImageButton.class) {
imageButton = (ImageButton) toolbar.getChildAt(i);
padding -= imageButton.getWidth();
break;
}
}
actionBarSubTitle.setPadding(padding, 0, 0, 0);
actionBarSubTitlePaddingSet = true;
ViewTreeObserver obs = layout.getViewTreeObserver();
obs.removeOnGlobalLayoutListener(this);
}
});
}
}
protected void hideActionBarTitle() {
if (!initActionBarTitle()) return;
actionBarTitle.setVisibility(View.GONE);
if (actionBarSubTitle != null) {
actionBarSubTitle.setVisibility(View.VISIBLE);
}
}
protected void showActionBarTitle() {
if (!initActionBarTitle()) return;
actionBarTitle.setVisibility(View.VISIBLE);
if (actionBarSubTitle != null) {
actionBarSubTitle.setVisibility(View.GONE);
}
}
EDIT (25.08.2016): This does not work with appcompat 24.2.0 revision (August 2016), if your activity has a "back button". I filed a bug report (Issue 220899), but I do not know if it is of any use (doubt it will be fixed any time soon). Meanwhile the solution is to check if the child's class is equal to AppCompatImageButton.class and do the same, only increase the width by 30% (e.g. appCompatImageButton.getWidth()*1.3 before subtracting this value from the original padding):
padding -= appCompatImageButton.getWidth()*1.3;
In the mean time I threw in some padding/margin checks in there:
Class<?> c;
ImageButton imageButton;
AppCompatImageButton appCompatImageButton;
for (int i = 0; i < toolbar.getChildCount(); i++) {
c = toolbar.getChildAt(i).getClass();
if (c == AppCompatImageButton.class) {
appCompatImageButton = (AppCompatImageButton) toolbar.getChildAt(i);
padding -= appCompatImageButton.getWidth()*1.3;
padding -= appCompatImageButton.getPaddingLeft();
padding -= appCompatImageButton.getPaddingRight();
if (appCompatImageButton.getLayoutParams().getClass() == LinearLayout.LayoutParams.class) {
padding -= ((LinearLayout.LayoutParams) appCompatImageButton.getLayoutParams()).getMarginEnd();
padding -= ((LinearLayout.LayoutParams) appCompatImageButton.getLayoutParams()).getMarginStart();
}
break;
}
else if (c == ImageButton.class) {
imageButton = (ImageButton) toolbar.getChildAt(i);
padding -= imageButton.getWidth();
padding -= imageButton.getPaddingLeft();
padding -= imageButton.getPaddingRight();
if (imageButton.getLayoutParams().getClass() == LinearLayout.LayoutParams.class) {
padding -= ((LinearLayout.LayoutParams) imageButton.getLayoutParams()).getMarginEnd();
padding -= ((LinearLayout.LayoutParams) imageButton.getLayoutParams()).getMarginStart();
}
break;
}
}

It works nicely.
activity = (AppCompatActivity) getActivity();
activity.getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.custom_actionbar, null);
ActionBar.LayoutParams p = new ActionBar.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT,
Gravity.CENTER);
((TextView) v.findViewById(R.id.title)).setText(FRAGMENT_TITLE);
activity.getSupportActionBar().setCustomView(v, p);
activity.getSupportActionBar().setDisplayShowTitleEnabled(true);
activity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
Below layout of custom_actionbar:
<?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">
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:text="Example"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:ellipsize="end"
android:maxLines="1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/colorBlack" />
</RelativeLayout>

Best and easiest way, specifically for those who just want text view with gravity center without any xml layout.
AppCompatTextView mTitleTextView = new AppCompatTextView(getApplicationContext());
mTitleTextView.setSingleLine();
ActionBar.LayoutParams layoutParams = new ActionBar.LayoutParams(ActionBar.LayoutParams.WRAP_CONTENT, ActionBar.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.CENTER;
actionBar.setCustomView(mTitleTextView, layoutParams);
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
mTitleTextView.setText(text);
mTitleTextView.setTextAppearance(getApplicationContext(), android.R.style.TextAppearance_Medium);

A Kotlin-only solution that does not require to have changes in the XML Layouts:
//Function to call in onResume() of your activity
private fun centerToolbarText() {
val mTitleTextView = AppCompatTextView(this)
mTitleTextView.text = title
mTitleTextView.setSingleLine()//Remove it if you want to allow multiple lines in the toolbar
mTitleTextView.textSize = 25f
val layoutParams = android.support.v7.app.ActionBar.LayoutParams(
ActionBar.LayoutParams.WRAP_CONTENT,
ActionBar.LayoutParams.WRAP_CONTENT
)
layoutParams.gravity = Gravity.CENTER
supportActionBar?.setCustomView(mTitleTextView,layoutParams)
supportActionBar?.displayOptions = ActionBar.DISPLAY_SHOW_CUSTOM
}

After a lot of research:
This actually works:
getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getActionBar().setCustomView(R.layout.custom_actionbar);
ActionBar.LayoutParams p = new ActionBar.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
p.gravity = Gravity.CENTER;
You have to define custom_actionbar.xml layout which is as per your requirement e.g. :
<?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="50dp"
android:background="#2e2e2e"
android:orientation="vertical"
android:gravity="center"
android:layout_gravity="center">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/top_banner"
android:layout_gravity="center"
/>
</LinearLayout>

You need to set ActionBar.LayoutParams.WRAP_CONTENT and ActionBar.DISPLAY_HOME_AS_UP
View customView = LayoutInflater.from(this).inflate(R.layout.actionbar_title, null);
ActionBar.LayoutParams params = new ActionBar.LayoutParams(ActionBar.LayoutParams.WRAP_CONTENT,
ActionBar.LayoutParams.MATCH_PARENT, Gravity.CENTER);
getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_HOME_AS_UP );

Here is a complete Kotlin + androidx solution, building upon the answer from #Stanislas Heili. I hope it may be useful to others. It's for the case when you have an activity that hosts multiple fragments, with only one fragment active at the same time.
In your activity:
private lateinit var customTitle: AppCompatTextView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// stuff here
customTitle = createCustomTitleTextView()
// other stuff here
}
private fun createCustomTitleTextView(): AppCompatTextView {
val mTitleTextView = AppCompatTextView(this)
TextViewCompat.setTextAppearance(mTitleTextView, R.style.your_style_or_null);
val layoutParams = ActionBar.LayoutParams(
ActionBar.LayoutParams.WRAP_CONTENT,
ActionBar.LayoutParams.WRAP_CONTENT
)
layoutParams.gravity = Gravity.CENTER
supportActionBar?.setCustomView(mTitleTextView, layoutParams)
supportActionBar?.displayOptions = ActionBar.DISPLAY_SHOW_CUSTOM
return mTitleTextView
}
override fun setTitle(title: CharSequence?) {
customTitle.text = title
}
override fun setTitle(titleId: Int) {
customTitle.text = getString(titleId)
}
In your fragments:
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
activity?.title = "some title for fragment"
}

The other tutorials I've seen override the whole action bar layout hiding the MenuItems. I've got it worked just doing the following steps:
Create a xml file as following:
<?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" >
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:ellipsize="end"
android:maxLines="1"
android:text="#string/app_name"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#android:color/white" />
</RelativeLayout>
And in the classe do it:
LayoutInflater inflator = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflator.inflate(R.layout.action_bar_title, null);
ActionBar.LayoutParams params = new ActionBar.LayoutParams(ActionBar.LayoutParams.WRAP_CONTENT, ActionBar.LayoutParams.MATCH_PARENT, Gravity.CENTER);
TextView titleTV = (TextView) v.findViewById(R.id.title);
titleTV.setText("Test");

For Kotlin users:
Use the following code in your activity:
// Set custom action bar
supportActionBar?.displayOptions = ActionBar.DISPLAY_SHOW_CUSTOM
supportActionBar?.setCustomView(R.layout.action_bar)
// Set title for action bar
val title = findViewById<TextView>(R.id.titleTextView)
title.setText(resources.getText(R.string.app_name))
And the XML/ resource layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/titleTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Title"
android:textColor="#color/black"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

My solution will be to keep text part of tool bar separate, to define style and say, center or whichever alignment. It can be done in XML itself. Some paddings can be specified after doing calculations when you have actions that are visible always. I have moved two attributes from toolbar to its child TextView. This textView can be provided id to be accessed from fragments.
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" >
<!--android:theme="#style/defaultTitleTheme"
app:titleTextColor="#color/white"-->
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingStart="#dimen/icon_size"
android:text="#string/title_home"
style="#style/defaultTitleTheme"
tools:ignore="RtlSymmetry" />
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>

Here's a quick tip to center align the action:
android:label=" YourTitle"
Assuming that you have Actionbar Enable, You can add this in your activity with some space (Can be adjusted) to place the title at the center.
However, This is just diddly and unreliable method. You probably shouldn't do that. So, The best thing to do is to create a custom ActionBar. So, What you wanna do is remove the default Actionbar and use this to replace it as an ActionBar.
<androidx.constraintlayout.widget.ConstraintLayout
android:elevation="30dp"
android:id="#+id/customAction"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="#color/colorOnMain"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/app_name"
android:textAllCaps="true"
android:textColor="#FFF"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
I have used Constraint Layout to center the textView and used 10dp elevation with 56dp height so that it looks as same as the default ActionBar.

This code will not hide back button, Same time will align the title in centre.
call this method in oncreate
centerActionBarTitle();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
myActionBar.setIcon(new ColorDrawable(Color.TRANSPARENT));
private void centerActionBarTitle() {
int titleId = 0;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
titleId = getResources().getIdentifier("action_bar_title", "id", "android");
} else {
// This is the id is from your app's generated R class when
// ActionBarActivity is used for SupportActionBar
titleId = R.id.action_bar_title;
}
// Final check for non-zero invalid id
if (titleId > 0) {
TextView titleTextView = (TextView) findViewById(titleId);
DisplayMetrics metrics = getResources().getDisplayMetrics();
// Fetch layout parameters of titleTextView
// (LinearLayout.LayoutParams : Info from HierarchyViewer)
LinearLayout.LayoutParams txvPars = (LayoutParams) titleTextView.getLayoutParams();
txvPars.gravity = Gravity.CENTER_HORIZONTAL;
txvPars.width = metrics.widthPixels;
titleTextView.setLayoutParams(txvPars);
titleTextView.setGravity(Gravity.CENTER);
}
}