how to change statusbar color for an activity in android studio with code examples

The status bar is a crucial element of the Android user interface. It displays important information about the device status and provides quick access to commonly used settings. Changing the status bar color for an activity can enhance the user experience and add a personal touch to your app. In this article, we'll show you how to change the status bar color for an activity in Android Studio with code examples.

Step 1: Add the Android Support Library to Your Project

To change the status bar color of an activity, you need to add the Android Support Library v21 or later to your project. You can do this by updating the build.gradle file located in the root directory of your project. Add the following code to the dependencies section:

dependencies {
    implementation 'com.android.support:appcompat-v7:29.0.0'
}

Sync your project with the Gradle files to ensure that the library is added to your project.

Step 2: Set the Status Bar Color in Your Activity

The next step is to set the status bar color for your activity. You can do this programmatically or in your XML layout file.

Set the Status Bar Color Programmatically

To change the status bar color programmatically, you need to get the Window object and then set the status bar color with the setStatusBarColor() method. Here's the code:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    Window window = getWindow();
    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
    window.setStatusBarColor(ContextCompat.getColor(this, R.color.statusBarColor));
}

The above code checks if the Android version is Lollipop or higher, as that's when the setStatusBarColor() method was introduced. If the version is Lollipop or higher, the code gets a reference to the Window object, adds the FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS flag to enable drawing behind the status bar, and sets the status bar color to the R.color.statusBarColor value.

Set the Status Bar Color in XML

To change the status bar color in XML, you need to create a theme and set the status bar color in the theme. Here's the code:

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    ...
    <item name="android:statusBarColor">@color/statusBarColor</item>
</style>

In this code, we've created an AppTheme style that extends the Theme.AppCompat.Light.NoActionBar parent style. We've also added an android:statusBarColor item that sets the status bar color to the R.color.statusBarColor value.

Step 3: Add a New Color Value

Finally, you need to add a new color value to your project for the status bar color. You can do this by adding a new color resource file in the res/values directory of your project. Here's the code:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="statusBarColor">#3F51B5</color>
</resources>

This code creates a new color resource file that defines a color with the name "statusBarColor" and the value "#3F51B5". You can replace this value with any color you prefer.

Conclusion:

In this article, we've shown you how to change the status bar color for an activity in Android Studio with code examples. You can change the status bar color programmatically by getting the Window object and using the setStatusBarColor() method. Alternatively, you can define a new color value in an XML file and set the status bar color in a theme. With these steps, you can easily customize the status bar color for your Android app and create a more personalized user interface.

let's dive a little deeper into the topic of changing the status bar color for an activity in Android Studio.

Programmatically Changing the Status Bar Color

As we mentioned in the previous article, you can programmatically change the status bar color of an activity using the setStatusBarColor() method. This method allows you to set the color of the status bar on a single activity, rather than changing the color globally across your entire app.

To use this method, you first need to check the Android version of the device your app is running on. This is because the setStatusBarColor() method was only introduced in Android 5.0 (Lollipop) and higher versions. If your app runs on an older version of Android, attempting to use this method will result in a runtime error.

Once you've checked the Android version, you can get a reference to the Window object for the activity in question and set the color of the status bar using the setStatusBarColor() method. Here's the code again:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    Window window = getWindow();
    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
    window.setStatusBarColor(ContextCompat.getColor(this, R.color.statusBarColor));
}

XML-Based Theming

In addition to programmatically changing the status bar color, you can also change the color using an XML-based theming approach. This method involves setting the status bar color in a theme, and then applying that theme to your activity.

To get started, you first need to define a custom theme in your styles.xml file, like so:

<style name="MyTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:statusBarColor">@color/my_status_bar_color</item>
</style>

The android:statusBarColor item sets the color of the status bar for your theme. Notice that we set the value to a color resource, @color/my_status_bar_color, rather than a hard-coded value. This approach makes it easy to change the status bar color by simply editing the color resource.

Once you've defined your custom theme, you can apply it to your activity by setting the android:theme attribute in your activity's layout XML file:

<activity
    android:name=".MyActivity"
    android:theme="@style/MyTheme"
    ...>

Now, whenever your activity is shown, the theme you defined will be applied and the status bar color will be set according to the android:statusBarColor item you defined.

In Conclusion

Changing the status bar color for an activity in Android can be done in a number of ways. Whether you choose to do it programmatically or via XML theming, it's an effective way to add some visual flair to your app.

Popular questions

  1. What is the purpose of changing the status bar color in an Android app?

Changing the status bar color can enhance the user experience and add a personal touch to your app. It can also help to distinguish your app from others and align with your brand's visual identity.

  1. What is the minimum Android version required to use the setStatusBarColor() method?

The setStatusBarColor() method was introduced in Android 5.0 (Lollipop) and higher versions. So, you should check the device's Android version before using this method, or else it would result in a runtime error.

  1. Can you change the status bar color for an individual activity in Android Studio?

Yes. You can programmatically change the status bar color for an individual activity using the setStatusBarColor() method. This method allows you to set the color of the status bar on a single activity, rather than changing the color globally across your entire app.

  1. What is the process of changing the status bar color using XML theming?

To change the status bar color using XML theming, you need to define a custom theme in your styles.xml file that includes the android:statusBarColor item to set the color of the status bar. Then, you can apply this theme to your activity by setting the android:theme attribute in your activity's layout XML file.

  1. Can you change the status bar color for multiple activities in Android Studio?

Yes. You can change the status bar color for multiple activities at once using an Android theme that includes the android:statusBarColor item to set the color of the status bar. By applying the same theme to all your activities, you can ensure that the status bar color is consistent across your entire app.

Tag

"StatusBarColor"

As an experienced software engineer, I have a strong background in the financial services industry. Throughout my career, I have honed my skills in a variety of areas, including public speaking, HTML, JavaScript, leadership, and React.js. My passion for software engineering stems from a desire to create innovative solutions that make a positive impact on the world. I hold a Bachelor of Technology in IT from Sri Ramakrishna Engineering College, which has provided me with a solid foundation in software engineering principles and practices. I am constantly seeking to expand my knowledge and stay up-to-date with the latest technologies in the field. In addition to my technical skills, I am a skilled public speaker and have a talent for presenting complex ideas in a clear and engaging manner. I believe that effective communication is essential to successful software engineering, and I strive to maintain open lines of communication with my team and clients.
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