Please feel free to write to [email protected] for comments, bugs, requests of enhancement or to share your sounds with me! It has gained around installs so far, with an average rating of 3. In addition, the app has a content rating of Everyone, from which you can decide if it is suitable to install for family, kids, or adult users.

There are many free Android emulators available on the internet. However, emulators consume many system resources to emulate an OS and run apps on it. So it is advised that you check the minimum and required system requirements of an Android emulator before you download and install it on your PC. In addition, you can check the minimum system requirements of the emulator on the official website before installing it. This tool helps you pick colors from the material palette and preview how they'll look in an app.

And then you can override whatever other styles you want. For example, you can change the activity background color as follows:. For a list of attributes you can use in your theme, see the table of attributes at R.

And when adding styles for the views in your layout, you can also find attributes by looking at the "XML attributes" table in the view class references. For example, all views support XML attributes from the base View class. Most attributes are applied to specific types of views, and some apply to all views. However, some theme attributes listed at R. Theme apply to the activity window, not the views in the layout. For example, windowBackground changes the window background and windowEnterTransition defines a transition animation to use when the activity starts for details, see Start an Activity with an Animation.

The Android Support Library also provides other attributes you can use to customize your theme extended from Theme. AppCompat such as the colorPrimary attribute shown above. These are best viewed in the library's attrs. That's used only for attributes from the Android framework.

There are also different themes available from the support library that you might want to extend instead of the ones shown above. The best place to see the available themes is the library's themes. If a new version of Android adds theme attributes that you want to use, you can add them to your theme while still being compatible with old versions.

All you need is another styles. For example:. As such, you can avoid duplicating styles by beginning with a "base" theme and then extending it in your version-specific styles. For example, to declare window transitions for Android 5. Now you can apply AppTheme in your manifest file and the system selects the styles available for each system version.

For more information about using alternative resources for different devices, read Providing Resources. Every widget in the framework and support library has a default style. For example, when you style your app using a theme from the support library, an instance of Button is styled using the Widget. Button style. If you'd like to apply a different widget style to a button, then you can do so with the style attribute in your layout file.

For example, the following applies the library's borderless button style:. And if you want to apply this style to all buttons, you can declare it in your theme's buttonStyle as follows:.

You can also extend widget styles, just like extending any other style , and then apply your custom widget style in your layout or in your theme. Content and code samples on this page are subject to the licenses described in the Content License. App Basics. Build your first app. App resources. Resource types. App manifest file. Device compatibility. Multiple APK support. Tablets, large screens, and foldables. Build responsive UIs. Build for foldables. Getting started. Handling data.

User input. Watch Face Studio. Health services. Creating watch faces. Android TV. Build TV Apps. Build TV playback apps. Help users find content on TV. Recommend TV content. Watch Next. Build TV games. Build TV input services. TV Accessibility. Android for Cars. Build media apps for cars. Build navigation, parking, and charging apps for cars. Android Things. Supported hardware. Advanced setup. Build apps. Create a Things app. Communicate with wireless devices. Configure devices. Interact with peripherals.

Build user-space drivers. Manage devices. Create a build. Push an update. Chrome OS devices. App architecture. Architecture Components. UI layer libraries. View binding. Data binding library. Lifecycle-aware components. Paging Library. Paging 2. Data layer libraries. How-To Guides. Advanced Concepts. Threading in WorkManager. App entry points. App shortcuts. App navigation. Navigation component.

App links. Dependency injection. Core topics. App compatibility. Interact with other apps. Package visibility. Intents and intent filters. DarkActionBar means that the action bar uses a dark color. Just as a class inherits attributes from its parent class, a theme inherits attributes from its parent theme.

Look through the items in the file, and note that the names are similar to those in the diagram above: colorPrimary , colorSecondary , and so on. Also notice that Android Studio draws a small sample of the color in the left margin. Open colors. Pick app theme colors Now that you have some idea of the theme attributes, it's time to pick some colors! Pick some colors Start by selecting a Primary color colorPrimary , for example, Green The color tool shows what that will look like in an app mockup, and also selects Light and Dark variants.

Tap on the Secondary section and choose a secondary color colorSecondary that you like, for example, Light Blue The color shows what that will look like in the app mockup, and again selects Light and Dark variants. Note that the app mockup includes 6 different mock "screens". Look at what your color choices look like on the different screens by tapping the arrows above the mockup. The color tool also has an Accessibility tab to let you know if your colors are clear enough to read when used with black or white text.

Part of making your app more accessible is ensuring the color contrast is high enough: 4. Read more about color contrast. For primaryColorVariant and secondaryColorVariant , you can pick either the light or dark variant suggested. Add the colors to your app Defining resources for colors makes it easier to consistently reuse the same colors in different parts of your app. In Android Studio, open colors.

Most of these are from the color tool. Open themes. If you're using the color tool on your own and select other colors, you may need to define additional color resources. Dark theme The app template included a default light theme, and also included a dark theme variant.

A dark theme uses darker, more subdued colors, and: Can reduce power usage by a significant amount depending on the device's screen technology.

Improves visibility for users with low vision and those who are sensitive to bright light. Makes it easier for anyone to use a device in a low-light environment.

Choosing colors for dark theme Colors for a dark theme still need to be readable. Update the dark version of your theme Open themes. Note that colorSecondaryVariant could be the same color as colorSecondary. Try dark theme You can see what your theme looks like in dark mode by enabling dark mode on your device.

Switch to the Settings app. In the Battery section, find the Battery Saver. Press Turn on Now. Continue with the steps below. In the Display section, find the Dark theme switch. Switch the Dark theme to the "on" position, and the device switches to night mode.

For either API Return to your app, and look at the differences. Solution code This codelab focused on customizing the colors for the theme, but there are many attributes your theme can customize including text, shape, button style, and more. The solution code for this codelab is shown below. Summary Use the Material Color Tool to select colors for your app theme.