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

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.USE_CREDENTIALS" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/shishak_logo"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <!-- Splash screen -->
        <activity android:name=".SplashActivity"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:screenOrientation="portrait" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- Login screen -->
        <activity android:name=".LoginActivity"
            android:screenOrientation="portrait" >
            </activity>

        <activity android:name=".ProfileActivity" />
        <activity android:name=".StudentHomeActivity" />
        <activity android:name=".TeacherHomeActivity"></activity>

        <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />

    </application>

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

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.USE_CREDENTIALS" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/shishak_logo"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <!-- Splash screen -->
        <activity android:name=".SplashActivity"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:screenOrientation="portrait" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- Login screen -->
        <activity android:name=".LoginActivity"
            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
            android:screenOrientation="portrait" >
            </activity>

        <activity android:name=".ProfileActivity" />
        <activity android:name=".StudentHomeActivity" />
        <activity android:name=".TeacherHomeActivity"></activity>

        <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />

    </application>

</manifest>
Change UI theme of Login activity
Change UI theme of Login activity
