How can I edit the header in a blank activity?

Question

I'm very new to android studio but I can't see any XML of the header, so I can't edit it. I want to do things like change it's position, height etc so is there any way I can do this?

activity_main.xml

<?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"

    tools:context="com.example.zorgan.app.MainActivity"
    tools:layout_editor_absoluteY="81dp"
    tools:layout_editor_absoluteX="0dp">


</android.support.constraint.ConstraintLayout>

What do you mean with "header" ? – josedlujan Mar 16 '17 at 21:19 — josedlujan, Mar 16 '17 at 21:19
Wasn't aware it's called Toolbar – Zorgan Mar 16 '17 at 21:27 — Zorgan, Mar 16 '17 at 21:27

score 1 · Accepted Answer · edited May 23 '17 at 12:25

1

To add ToolBar to your activity:

1) Create a new layout called new_activity_main.xml and add the following code:

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:fitsSystemWindows="true"
   android:orientation="vertical">

 <android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:minHeight="?attr/actionBarSize"  
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:titleTextColor="@android:color/white"
    android:background="?attr/colorPrimary">

       <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="My Title"
        android:layout_gravity="center"
        android:id="@+id/toolbar_title" />

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

 <!-- include your activity_main.xml here  -->

 <include layout="@layout/activity_main" />

</LinearLayout>

2) Create a style to disable ActionBar in style.xml :

 <style name="AppTheme.NoActionBar">
   <item name="windowActionBar">false</item>
   <item name="windowNoTitle">true</item>
 </style>

3) Set this style to your Activity in manifest:

  <activity
    android:name=".MainActivity"
    android:label="@string/app_name"
    android:theme="@style/AppTheme.NoActionBar">

4) Set layout of activity:

   setContentView(R.layout.new_activity_main);

5) And add the following code to onCreate(). First initiate toolbar then disable default title:

Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);

Hope it helps. (Kudos to this answer).

edited May 23 '17 at 12:25

Community

1
1

answered Mar 16 '17 at 21:35

tahsinRupam

6,325
1
18
34

There is no XML for the toolbar though so I can't edit it. My XML is in my edit. – Zorgan Mar 16 '17 at 21:39
Where did you search ? activity_main.xml ? Try find in app_bar_main.xml. Or you are using ActionBar ? Can you confirm please ? – tahsinRupam Mar 16 '17 at 21:42
Alright I get it, you are using ActionBar. Wait a moment. – tahsinRupam Mar 16 '17 at 21:43
This is just a blank activity, so the toolbar is automatically added. I'm not sure whether it's ActionBar or not and I don't think i have app_bar_main.xml – Zorgan Mar 16 '17 at 21:43
First tell me are you sure want to continue with ActionBar ? Cause ActionBar is deprecated. You can add Toolbar very easily. I can show you both - Showing ActionBar Styling or Toolbar Addition process ? Your choice :) – tahsinRupam Mar 16 '17 at 21:57
Adding Toolbar. – Zorgan Mar 16 '17 at 21:58
Ok, fair enough. I'm adding the procedure please wait a moment. – tahsinRupam Mar 16 '17 at 22:09
I've added the whole process. Please check. – tahsinRupam Mar 16 '17 at 22:39
Thanks i'll check it out now. Does that also remove my current ToolBar? (the one that automatically comes with BlankActivity) – Zorgan Mar 16 '17 at 22:42
Yes, it will replace the previous one. – tahsinRupam Mar 16 '17 at 22:56
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/138278/discussion-between-zorgan-and-tahsinrupam). – Zorgan Mar 16 '17 at 23:16
cannot resolve class android.support.v7.widget.Toolbar – Ivan P. Jun 24 '21 at 08:13
I replaced it to android.widget.Toolbar : it is available from android API v21 – Ivan P. Jun 24 '21 at 08:22

score 0 · Answer 2 · answered Mar 16 '17 at 21:22

If you only want to change the name and simple stuff go to the AndroidManifest.xml file under application tag you can change basic things.

If you are talking about the Toolbar, you can check this tutorial https://guides.codepath.com/android/Using-the-App-Toolbar

Hope it helps.

score 0 · Answer 3 · answered Mar 16 '17 at 21:39

0

Just add setTitle("any");below setContentView in your activity

answered Mar 16 '17 at 21:39

How can I edit the header in a blank activity?

3 Answers3