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?

Answer 1

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;
}

Answer 2

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);
}

Answer 3

There are many ways to achieve that, here is my favorite:

Layout:

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    app:navigationIcon="?attr/homeAsUpIndicator" />

Activity:

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

    toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // back button pressed
        }
    });

Answer 4

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();
    }
});

Answer 5

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

<activity
    android:name=".GalleryActivity"
    android:theme="@style/Theme.AppCompat.Light"
    >        
</activity>

you can also put this android:theme="@style/Theme.AppCompat.Light" to <aplication> tag, for apply to all activities

Answer 6

    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

<android.support.v7.widget.Toolbar
    android:navigationIcon="@drawable/back_arrow"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"/>

Answer 7

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:

<activity
        android:name="com.example.myapp.MyCurrentActivity"
        android:label="@string/title_activity_display_message"
     android:parentActivityName="com.example.myfirstapp.MainActivity" >
    <!-- Parent activity meta-data to support 4.0 and lower -->
    <meta-data
        android:name="android.support.PARENT_ACTIVITY"
        android:value="com.example.myapp.MyMainActivity" />
</activity>

I hope this will help you!

Answer 8

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 <android.support.v7.widget.Toolbar> 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:

<style name="SuperCoolAppBarActivity" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/primary</item>

    <!-- colorPrimaryDark is used for the status bar -->
    <item name="colorPrimaryDark">@color/primary_dark</item>
    ...
    ...
</style>

In your App's manifest, choose the child style theme you just defined, like so:

    <activity
        android:name=".activity.YourSuperCoolActivity"
        android:label="@string/super_cool"
        android:theme="@style/SuperCoolAppBarActivity">
    </activity>

In your Activity Xml, if the toolbar is defined like so:

...
    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        />
...

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);
} 

Answer 9

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 -> onBackPressed());
    }

Answer 10

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);
}

Answer 11

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;
    }

}

Answer 12

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

Answer 13

In your manifest file for the activity where you want to add a back button, we will use the property android:parentActivityName

        <activity
        android:name=".WebActivity"
        android:screenOrientation="portrait"
        android:parentActivityName=".MainActivity"
        />

P.S. This attribute was introduced in API Level 16.

Answer 14

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
            }
        });
    }
}

Answer 15

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
}

Answer 16

Add this to activity's xml in layout folder:

<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/prod_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>

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();
    }
});

Answer 17

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.

Answer 18

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

 <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">

                <RelativeLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content">


                    <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" />


                    <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" />


                </RelativeLayout>

            </android.support.v7.widget.Toolbar>

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)
        })

Answer 19

With Kotlin it became:

Xml:

<include
android:id="@+id/tbSignToolbar "
layout="@layout/toolbar_sign_up_in"/>

In your Activity:-

setSupportActionBar(tbSignToolbar as Toolbar?)//tbSignToolbar :id of your toolbar 
supportActionBar?.setDisplayHomeAsUpEnabled(true)
supportActionBar?.setDisplayShowHomeEnabled(true)

Answer 20

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
}