Display Back Arrow on Toolbar

Question

I m migrating from ActionBar to Toolbar in my application   But I don t know how to display and set click event on Back Arrow on Toolbar like I did on Actionbar       With ActionBar  I call mActionbar setDisplayHomeAsUpEnabled true   But there is no the similar method like this   Has anyone ever faced this situation and somehow found a way to solve it

User · Answer

First  you need to initialize the toolbar    Toolbar toolbar    Toolbar  findViewById R id toolbar   setSupportActionBar toolbar     then call the back button from the action bar    getSupportActionBar   setDisplayHomeAsUpEnabled true   getSupportActionBar   setDisplayShowHomeEnabled true     Override public boolean onSupportNavigateUp         onBackPressed        return true

User · Answer

If you want to get the back arrow on a Toolbar that s not set as your SupportActionBar    kotlin   val resId   getResIdFromAttribute toolbar context  android R attr homeAsUpIndicator  toolbarFilter navigationIcon   ContextCompat getDrawable toolbar context  resId  toolbarFilter setNavigationOnClickListener   fragmentManager  popBackStack       to get res from attributes    AnyRes fun getResIdFromAttribute context  Context   AttrRes attr  Int   Int       if  attr    0  return 0     val typedValueAttr   TypedValue       context theme resolveAttribute attr  typedValueAttr  true      return typedValueAttr resourceId

User · Answer

This worked perfectly  public class BackButton extends AppCompatActivity         Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout chat box           Toolbar chatbox toolbar  Toolbar findViewById R id chat box toolbar           chatbox toolbar setTitle  Demo Back Button            chatbox toolbar setTitleTextColor getResources   getColor R color white            setSupportActionBar chatbox toolbar           getSupportActionBar   setDisplayHomeAsUpEnabled true           getSupportActionBar   setDisplayShowHomeEnabled true           chatbox toolbar setNavigationOnClickListener new View OnClickListener                  Override             public void onClick View v                       Define Back Button Function

User · Answer

Simple and easy way to show back button on toolbar  Paste  this code in onCreate method    if  getSupportActionBar      null                getSupportActionBar   setDisplayHomeAsUpEnabled true               getSupportActionBar   setDisplayShowHomeEnabled true               Paste this override method  outside the onCreate method    Override public boolean onOptionsItemSelected MenuItem item        if item getItemId     android R id home             finish              return super onOptionsItemSelected item

User · Answer

In the AppCompatActivity for example you can do  public class GrandStatActivity extends AppCompatActivity         Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity grand stat               Override     public void onResume             super onResume                Display custom title         ActionBar actionBar   this getSupportActionBar            actionBar setTitle R string fragment title grandstats               Display the back arrow         getSupportActionBar   setDisplayHomeAsUpEnabled true           getSupportActionBar   setDisplayShowHomeEnabled true                 Back arrow click event to go to the parent Activity      Override     public boolean onSupportNavigateUp             onBackPressed            return true

User · Answer

I used this method from the Google Developer Documentation    Override public void onCreate Bundle savedInstanceState            getActionBar   setDisplayHomeAsUpEnabled true       If you get a null pointer exception it could depend on the theme  Try using a different theme in the manifest or use this alternatively    Override public void onCreate Bundle savedInstanceState            getSupportActionBar   setDisplayHomeAsUpEnabled true       Then in the manifest  where I set the parent activity for current activity    lt activity         android name  com example myapp MyCurrentActivity          android label   string title activity display message       android parentActivityName  com example myfirstapp MainActivity   gt       lt  -- Parent activity meta-data to support 4 0 and lower -- gt       lt meta-data         android name  android support PARENT ACTIVITY          android value  com example myapp MyMainActivity    gt   lt  activity gt    I hope this will help you

User · Answer

MyActivity extends AppCompatActivity        private Toolbar toolbar        Override     protected void onCreate Bundle savedInstanceState                        toolbar    Toolbar  findViewById R id my toolbar           setSupportActionBar toolbar           getSupportActionBar   setDisplayHomeAsUpEnabled true           toolbar setNavigationOnClickListener arrow - gt  onBackPressed

User · Answer

You can always add a Relative layout or a Linear Layout in your Toolbar and place a Image view for back icon or close icon anywhere in toolbar as you like  For example I have used Relative layout in my toolbar    lt android support v7 widget Toolbar                 android id    id toolbar top                  android layout width  match parent                  android layout height  35dp                  android minHeight   attr actionBarSize                  android nextFocusDown   id netflixVideoGridView                  app layout collapseMode  pin  gt                    lt RelativeLayout                     android layout width  match parent                      android layout height  wrap content  gt                         lt TextView                          android layout width  wrap content                          android layout height  wrap content                          android text  Myflix                          android textAllCaps  true                          android textSize  19sp                          android textColor   color red                          android textStyle  bold    gt                         lt ImageView                         android id    id closeMyFlix                          android layout alignParentRight  true                          android layout width  wrap content                          android layout height  wrap content                          android layout gravity  center vertical                          app srcCompat   drawable vector close    gt                     lt  RelativeLayout gt                lt  android support v7 widget Toolbar gt    And it looks like this     You can add click listener on that image view from Activity or fragment like this     closeMyFlix setOnClickListener               Navigator instance showFireTV   activity   supportFragmentManager

User · Answer

If your are using the androidx appcompat app AppCompatActivity just use   Toolbar toolbar   findViewById R id toolbar   setSupportActionBar toolbar   getSupportActionBar   setDisplayHomeAsUpEnabled true     Then just define in the Manifest xml the parent Activity    lt activity     android name   MyActivity          gt     lt meta-data       android name  android support PARENT ACTIVITY        android value   ParentActivity    gt   lt  activity gt    Instead if you are using a Toolbar and you want a custom behavior just use    lt androidx appcompat widget Toolbar     android id    id toolbar       app navigationIcon   attr homeAsUpIndicator           gt    and in your Activity   Toolbar toolbar    Toolbar  findViewById R id toolbar   toolbar setNavigationOnClickListener new View OnClickListener          Override     public void onClick View v

User · Answer

I see a lot of answers but here is mine which is not mentioned before  It works from API 8    public class DetailActivity extends AppCompatActivity   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity detail           toolbar     Toolbar toolbar    Toolbar  findViewById R id toolbar       setSupportActionBar toolbar           add back arrow to toolbar     if  getSupportActionBar      null           getSupportActionBar   setDisplayHomeAsUpEnabled true           getSupportActionBar   setDisplayShowHomeEnabled true             Override public boolean onOptionsItemSelected MenuItem item           handle arrow click here     if  item getItemId      android R id home            finish       close this activity and return to preview activity  if there is any             return super onOptionsItemSelected item

User · Answer

In your manifest file for the activity where you want to  add a back button  we will use the property android parentActivityName            lt activity         android name   WebActivity          android screenOrientation  portrait          android parentActivityName   MainActivity            gt    P S  This attribute was introduced in API Level 16

User · Answer

In Kotlin it would be  private fun setupToolbar        toolbar title   getString R string YOUR TITLE      setSupportActionBar toolbar      supportActionBar  setDisplayHomeAsUpEnabled true      supportActionBar  setDisplayShowHomeEnabled true        don t forget click listener for back button override fun onSupportNavigateUp    Boolean       onBackPressed       return true

User · Answer

Possibly a more reliable way to get the up icon from your theme  if not using the toolbar as your action bar    toolbar navigationIcon   context getDrawableFromAttribute R attr homeAsUpIndicator    In order to turn the theme attribute into a drawable I used an extension function   fun Context getDrawableFromAttribute attributeId  Int   Drawable       val typedValue   TypedValue   also   theme resolveAttribute attributeId  it  true        return resources getDrawable typedValue resourceId  theme

User · Answer

If you are using an ActionBarActivity then you can tell Android to use the Toolbar as the ActionBar like so   Toolbar toolbar    Toolbar  findViewById R id my awesome toolbar   setSupportActionBar toolbar     And then calls to   getSupportActionBar   setDisplayHomeAsUpEnabled true   getSupportActionBar   setDisplayShowHomeEnabled true     will work  You can also use that in Fragments that are attached to ActionBarActivities you can use it like this     ActionBarActivity  getActivity    getSupportActionBar   setDisplayHomeAsUpEnabled true     ActionBarActivity  getActivity    getSupportActionBar   setDisplayShowHomeEnabled true     If you are not using ActionBarActivities or if you want to get the back arrow on a Toolbar that s not set as your SupportActionBar then you can use the following   mActionBar setNavigationIcon getResources   getDrawable R drawable ic action back    mActionBar setNavigationOnClickListener new View OnClickListener         Override    public void onClick View v             What to do on back clicked            If you are using android support v7 widget Toolbar  then you should add the following code to your AppCompatActivity    Override public boolean onSupportNavigateUp         onBackPressed        return true

User · Answer

If you are using JetPack Navigation   Here is the layout for MainActivity   lt androidx constraintlayout widget ConstraintLayout xmlns android  http   schemas android com apk res android                                                 xmlns app  http   schemas android com apk res-auto                                                 xmlns tools  http   schemas android com tools                                                 android layout width  match parent                                                 android layout height  match parent                                                 tools context   MainActivity  gt    lt androidx appcompat widget Toolbar         android id    id toolBar          app layout constraintTop toTopOf  parent          app layout constraintStart toStartOf  parent          app layout constraintEnd toEndOf  parent          android layout width  match parent          android layout height  wrap content  gt    lt  androidx appcompat widget Toolbar gt    lt fragment         android id    id my nav host fragment          android name  androidx navigation fragment NavHostFragment          android layout width  match parent          android layout height  0dp          app defaultNavHost  true          app layout constraintTop toBottomOf   id toolBar          app layout constraintBottom toTopOf  parent          app navGraph   navigation nav graph   gt      SetUp your toolbar in your activity like below in onCreate   of your Activity class   val navHostFragment   supportFragmentManager          findFragmentById R id my nav host fragment  as NavHostFragment     return  val navController   navHostFragment findNavController   val toolBar   findViewById lt Toolbar gt  R id toolBar  setSupportActionBar toolBar     To set toolBar as ActionBar setupActionBarWithNavController navController    setupActionBarWithNavController navController   Will create a back button on the toolBar if needed and handles the backButton functionality  If you need to write a CustomBack functionality  create a callBack as below on your fragment onCreate   method  val callback   requireActivity   onBackPressedDispatcher addCallback this               Handle the back button event         From Documentation https   developer android com guide navigation navigation-custom-back

User · Answer

There are many ways to achieve that  here is my favorite   Layout    lt android support v7 widget Toolbar     android id    id toolbar      android layout width  match parent      android layout height   attr actionBarSize      app navigationIcon   attr homeAsUpIndicator    gt    Activity       Toolbar toolbar    Toolbar  findViewById R id toolbar        toolbar setNavigationOnClickListener new View OnClickListener              Override         public void onClick View v                   back button pressed

User · Answer

Toolbar toolbar    Toolbar  findViewById R id toolbar       toolbar setNavigationIcon R drawable back arrow      your drawable     toolbar setNavigationOnClickListener new View OnClickListener              Override         public void onClick View v                onBackPressed       Implemented by activity                     And for API 21  android navigationIcon   lt android support v7 widget Toolbar     android navigationIcon   drawable back arrow      android layout width  match parent      android layout height   attr actionBarSize   gt

User · Answer

If you were using AppCompatActivity and have gone down the path of not using it  because you wanted to not get the automatic ActionBar that it provides  because you want to separate out the Toolbar  because of your Material Design needs and CoordinatorLayout or AppBarLayout  then  consider this   You can still use the AppCompatActivity  you don t need to stop using it just so that you can use a  lt android support v7 widget Toolbar gt  in your xml  Just turn off the action bar style as follows   First  derive a style from one of the NoActionBar themes that you like in your styles xml  I used Theme AppCompat Light NoActionBar like so    lt style name  SuperCoolAppBarActivity  parent  Theme AppCompat Light NoActionBar  gt       lt item name  colorPrimary  gt  color primary lt  item gt        lt  -- colorPrimaryDark is used for the status bar -- gt       lt item name  colorPrimaryDark  gt  color primary dark lt  item gt                   lt  style gt    In your App s manifest  choose the child style theme you just defined  like so        lt activity         android name   activity YourSuperCoolActivity          android label   string super cool          android theme   style SuperCoolAppBarActivity  gt       lt  activity gt    In your Activity Xml  if the toolbar is defined like so            lt android support v7 widget Toolbar         android id    id toolbar          android layout width  match parent          android layout height   attr actionBarSize            gt        Then  and this is the important part  you set the support Action bar to the AppCompatActivity that you re extending  so that the toolbar in your xml  becomes the action bar  I feel that this is a better way  because you can simply do the many things that ActionBar allows  like menus  automatic activity title  item selection handling  etc  without resorting to adding custom click handlers  etc   In your Activity s onCreate override  do the following    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity super cool       Toolbar toolbar    Toolbar  findViewById R id toolbar        setSupportActionBar toolbar         Your toolbar is now an action bar and you can use it like you always do  for example      getSupportActionBar   setDisplayHomeAsUpEnabled true

User · Answer

you can use the tool bar setNavigationIcon method  Android Doc  mToolBar setNavigationIcon R drawable abc ic ab back mtrl am alpha    mToolBar setNavigationOnClickListener new View OnClickListener          Override     public void onClick View v            handleOnBackPress

User · Answer

If you don t want to create a custom Toolbar  you can do like this  public class GalleryActivity extends AppCompatActivity         Override     public void onCreate Bundle savedInstanceState                          getSupportActionBar   setTitle  Select Image            getSupportActionBar   setDisplayHomeAsUpEnabled true           getSupportActionBar   setDisplayShowHomeEnabled true               Override     public boolean onOptionsItemSelected MenuItem item            if  item getItemId      android R id home                finish                      return super onOptionsItemSelected item                                  In you AndroidManifest xml   lt activity     android name   GalleryActivity      android theme   style Theme AppCompat Light  gt           lt  activity gt    you can also put this android theme   style Theme AppCompat Light  to  lt aplication gt  tag  for apply to all activities

User · Answer

With Kotlin it became   Xml    lt include android id    id tbSignToolbar   layout   layout toolbar sign up in   gt    In your Activity -  setSupportActionBar tbSignToolbar as Toolbar    tbSignToolbar  id of your toolbar  supportActionBar  setDisplayHomeAsUpEnabled true  supportActionBar  setDisplayShowHomeEnabled true

User · Answer

If you are using DrawerLayout with ActionBarDrawerToggle  then to show Back button instead of Menu button  and viceversa   you need to add this code in your Activity    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState                   mDrawerLayout    DrawerLayout  findViewById R id drawer layout       mDrawerToggle   new ActionBarDrawerToggle this  mDrawerLayout  toolbar  R string application name  R string application name       mDrawerLayout addDrawerListener mDrawerToggle        mDrawerToggle setHomeAsUpIndicator R drawable ic arrow back white 32dp       mDrawerToggle setToolbarNavigationClickListener new View OnClickListener              Override         public void onClick View view                onBackPressed       Or you can perform some other action here when Back button is clicked                        mDrawerToggle syncState                   Override public boolean onOptionsItemSelected MenuItem item        if  mDrawerToggle onOptionsItemSelected item           return true       switch  item getItemId              case android R id home              onBackPressed                return true                            return super onOptionsItemSelected item      public void showBackInToolbar boolean isBack           Remove next line if you still want to be able to swipe to show drawer menu      mDrawerLayout setDrawerLockMode isBack   DrawerLayout LOCK MODE LOCKED CLOSED   DrawerLayout LOCK MODE UNLOCKED       mDrawerToggle setDrawerIndicatorEnabled  isBack       mDrawerToggle syncState        So when you need to show Back button instead of Menu button  call showBackInToolbar true   and if you need Menu button  call showBackInToolbar false    You can generate back arrow  ic arrow back white 32dp  over here  search arrow back in Clipart section  use default 32dp with 8dp padding   Just select the color you want

User · Answer

Add this to activity s xml in layout folder     lt android support design widget AppBarLayout     android layout width  match parent      android layout height  wrap content      android theme   style AppTheme AppBarOverlay  gt       lt android support v7 widget Toolbar         android id    id prod toolbar          android layout width  match parent          android layout height   attr actionBarSize          android background   attr colorPrimary          app popupTheme   style AppTheme PopupOverlay    gt   lt  android support design widget AppBarLayout gt    Make toolbar clickable  add these to onCreate method   Toolbar toolbar    Toolbar  findViewById R id prod toolbar   setSupportActionBar toolbar   getSupportActionBar   setDisplayHomeAsUpEnabled true   getSupportActionBar   setDisplayShowHomeEnabled true   toolbar setNavigationOnClickListener new View OnClickListener          Override     public void onClick View v            finish

User · Answer

maybe it will help someone I didn t find in the answares the thing I did by the end  with ActionBarDrawerToggle mDrawerToggle  to show the back arrow in toolbar set  mDrawerToggle setDrawerIndicatorEnabled false   and if you want it to show the hamburger in the toolbar  mDrawerToggle setDrawerIndicatorEnabled true

User · Answer

Easily you can do it   Toolbar toolbar    Toolbar  findViewById R id toolbar   setSupportActionBar toolbar    getSupportActionBar   setDisplayHomeAsUpEnabled true   getSupportActionBar   setDisplayShowHomeEnabled true    Override public boolean onSupportNavigateUp         onBackPressed        return true      Credits  https   freakycoder com android-notes-24-how-to-add-back-button-at-toolbar-941e6577418e

[android] Display Back Arrow on Toolbar

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[android] Display Back Arrow on Toolbar

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