How to hide the title bar for an Activity in XML with existing custom theme

How to Hide the Title Bar for an Activity in XML with an Existing Custom Theme ✨🚀

If you've ever wanted to hide the title bar for specific activities in your Android app, you might have come across the common issue where you already have a custom theme applied to all your activities. 📱😶

But worry not! 🙌 In this guide, we'll walk you through easy solutions that will allow you to hide the title bar without affecting other activities in your app. Let's dive in! 💪🔍

Understanding the Problem 🧩

The problem arises when you have a custom theme applied to all your activities and want to hide the title bar for only certain activities. The straightforward solution of using the @android:style/Theme.NoTitleBar theme is not suitable in this case as it would remove the title bar from all activities. 😔❌

Solution: Create a No Title Style Item 🔧🔍

One way to overcome this issue is by creating a custom style item that will remove the title bar for specific activities while keeping your existing custom theme intact. Here's how you can do it: 🛠📝

1. Open your app's styles.xml file located in the res/values directory of your project.

2. Inside the <resources> tag, add the following code to create a new style item:

   <style name="AppTheme.NoTitle" parent="Your.Custom.Parent.Theme"> <item name="windowNoTitle">true</item> </style>

   Replace AppTheme.NoTitle with the name you want to give to your new style item, and Your.Custom.Parent.Theme with the name of your existing custom theme.

3. Now, for the activity where you want to hide the title bar, open its corresponding layout XML file.

4. Locate the root element of the layout and add the following code to apply the new style:

   android:theme="@style/AppTheme.NoTitle"

   Replace AppTheme.NoTitle with the name of the style item you created in the previous step.

Example Usage 🌟🎉

Let's say you have an activity named MainActivity for which you want to hide the title bar. Here's how you can implement the above solution: 🚀👩‍💻

1. Open styles.xml and add the following code:

   <style name="AppTheme.NoTitle" parent="Your.Custom.Parent.Theme"> <item name="windowNoTitle">true</item> </style>

2. Now, open activity_main.xml (assuming it's the layout file for MainActivity) and modify the root element as follows:

   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:theme="@style/AppTheme.NoTitle" tools:context=".MainActivity"> <!-- Rest of your layout code --> </LinearLayout>

With these changes, the title bar will be hidden only for the MainActivity activity while preserving your custom theme for other activities. 🎉✨

Take Action and Enjoy! 🚀💡

Now that you know how to hide the title bar for an activity with an existing custom theme, go ahead and give it a try! Experiment with different activities and see the impact it brings to your app's look and feel. Feel free to share your experience and any cool design changes you made using this technique! 😄💬

If you have any questions or face any issues, don't hesitate to leave a comment below. Our amazing community and I will be happy to help you out. Happy coding! 💻🎈