Android application label name appears everywhere

Question

I am using this theme in my Android app, Theme.AppCompat.Light.NoActionBar in every activity my project name i.e the label name from the Application tag appears in every Android activity, before it was not happening but recently it is happening. If I remove the label then the package name appears instead of the title.

What exactly is happening ?

I know that there are several ways to fix it but show me where I am wrong and what is happening ? Is it a bug ?

I referred a previous answer Android Application Name Appears as Activity Name and tried but still did not work, So here is a copy of my manifest.xml

<application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".Activity2"></activity>
    </application>

Below is a sample screenshot, the label name can be seen although that activity(Activity2) consists of a toolbar , the white area is a edittext in the toolbar and nothing else is present inside the toolbar.

EDIT 1

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:textColor">@color/white</item>
        <item name="android:textColorPrimary">@color/white</item>
        <item name="android:textColorSecondary">@color/white</item>
    </style>

EDIT 2

public class Activity2 extends AppCompatActivity {


    LinedEditText editText;
    Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity2);


        toolbar = (Toolbar) findViewById(R.id.toolbar);
        editText = (LinedEditText) findViewById(R.id.editText);
        setSupportActionBar(toolbar);


    }
}

activity2.xml

<?xml version="1.0" encoding="utf-8"?>
<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:orientation="vertical"
  >
    <android.support.v7.widget.Toolbar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/green"
        android:id="@+id/toolbar"
        >

        <EditText
            android:layout_width="250dp"
            android:layout_height="40dp"
           android:id="@+id/title"
            android:background="@color/white"
            android:layout_margin="10dp"
            />
        </android.support.v7.widget.Toolbar>
    <com.test.testproject.LinedEditText
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:id="@+id/editText"
        android:gravity="top"
        />
</LinearLayout>

That is fine..but I need to know the what exactly is the issue and why is it coming ? Is that a bug ? — oldcode, Jul 19 '17 at 13:40

sagar suri · Answer 1 · 2017-07-19T14:15:55.880

0

UPDATE:

This is your problem. Avoid using Toolbar.

<android.support.v7.widget.Toolbar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/green"
        android:id="@+id/toolbar"
        >

        <EditText
            android:layout_width="250dp"
            android:layout_height="40dp"
           android:id="@+id/title"
            android:background="@color/white"
            android:layout_margin="10dp"
            />
        </android.support.v7.widget.Toolbar>

If you are using NoActionBar in your theme. Avoid using Toolbar in your Activity's layout. That is the reason you are getting the Activity name.

If you are using Toolbar make sure you disable the TITLE on it.

edited Jul 19 '17 at 14:15

answered Jul 19 '17 at 13:42

sagar suri

4,351
12
59
122

It never happened before so now why is the question ? – oldcode Jul 19 '17 at 13:44
are you using 26 API level ? – sagar suri Jul 19 '17 at 13:45
Current API level is 23. – oldcode Jul 19 '17 at 13:46
Hope my answer make sense for your problem. Everything is fine from android side. its your code which is creating the problem. – sagar suri Jul 19 '17 at 14:09
Exactly where is what I would like to know ? – oldcode Jul 19 '17 at 14:10

score 0 · Answer 2 · answered Jul 19 '17 at 13:45

0

Check this out.

getSupportActionBar().setDisplayShowTitleEnabled(false);

answered Jul 19 '17 at 13:45

Roma Darvish

257
5
19

It never happened before so now why is the question ? – oldcode Jul 19 '17 at 13:45
if you change your style.xml like this. false – Roma Darvish Jul 19 '17 at 14:08
You must do one of to. Code or XML – Roma Darvish Jul 19 '17 at 14:14

score 0 · Answer 3 · answered Jul 19 '17 at 13:50

0

Check with setting theme for specific activity..which solves your problem..try this 
<style name = "NoActionBar" parent = "@android:style/Theme.Holo.Light">
        <item name = "android:windowActionBar">false</item>
        <item name = "android:windowNoTitle">true</item>
    </style>

answered Jul 19 '17 at 13:50

vignesh muthuraman

26
1
4

Solution is fine ..I am looking for why is it happening now and not earlier ? – oldcode Jul 19 '17 at 13:51

Rajan1404930 · Answer 4 · 2017-07-19T13:58:15.137

0

Just put in onCreate() method after setSupportActionBar(toolbar).

    setContentView(R.layout.activity_main);
    ActionBar actionBar = getActionBar();
    actionBar.setTitle("");

edited Jul 19 '17 at 13:58

answered Jul 19 '17 at 13:56

Rajan1404930

422
5
15

Solution is fine ..I am looking for why is it happening now and not earlier ? Is it a bug ? – oldcode Jul 19 '17 at 13:57
have u change theme of application level? – Rajan1404930 Jul 19 '17 at 13:59
`AppTheme` is the global theme – oldcode Jul 19 '17 at 14:00
So did not changes in application theme item? – Rajan1404930 Jul 19 '17 at 14:01
I just inherited from `Theme.AppCompat.Light.NoActionBar` – oldcode Jul 19 '17 at 14:04

Android application label name appears everywhere

4 Answers4