How to Change Labels in different Android Screens using AndroidManifest.xml

Question

enter image description here I tried with below code, but the labels of different screens are missing and not visible in User Interface and Can you tell me how to solve this issue

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.geeth.myprofile">

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".ProfilePhoto"
                  android:label="My Profile Picture"></activity>
    </application>

</manifest>

See below Image I am getting output like this,I request you is there any corrections required in above code

Answer 1

did you mean Activity title? then you can use this

setTitle("Your Title");

or if you use toolbar use

getSupportActionBar().setTitle("Your Title");`

or via AndroidManifest

android:label="My Activity Title"

Answer 2

This is very simple to accomplish

If you want to change it in code, call:

setTitle("My title"); OR

getSupportActionBar().setTitle("My title");

And set the values to whatever you please.

Or, in the Android manifest XML file:

<activity android:name=".MyActivity"  
       android:label="My title" />

The code should all be placed in your onCreate so that the label/icon changing is transparent to the user, but in reality it can be called anywhere during the activity's lifecycle.