![]() It's good practice to limit the number of keys on a row to a maximum of ten, with each key having a width equal to 10% of the keyboard. The keys of a keyboard are grouped as rows. It is usually set to true for the delete and spacebar keys. ![]() isRepeatable: If this attribute is set to true, long-pressing the key will repeat the action of the key multiple times.It's usually defined as a percentage value. keyWidth: This attribute defines the width of a key.This attribute is usually added to the leftmost and rightmost keys of a row. keyEdgeFlags: This attribute can take the value left or right.three taps in quick succession results in the character :Ī key can also have a few optional attributes:.two taps in quick succession results in the character !.a single tap on the key results in the character ?.If more than one code is associated with a key, then the character that the key represents will depend on the number of taps the key receives. For example, if a key has the codes 63, 33, and 58: codes: This attribute contains the unicode values of the characters that the key represents.įor example, to define a key for the letter A, the codes attribute should have the value 97 and the keyLabel attribute should be set to A.keyLabel: This attribute contains the text that is displayed on the key.The details of the keyboard keys and their positions are specified in an XML file. Every key has the following attributes: Create a file named res/layout/preview.xml and add the following to it: The keyPreviewLayout is the layout of the short-lived pop-up that shows up whenever a key on the keyboard is pressed. The layout_alignParentBottom attribute is set to true so that keyboard appears at the bottom of the screen.Ĭreate a file named res/layout/keyboard.xml and replace its contents with the following: The layout of our keyboard contains only a KeyboardView. Update your strings.xml so that it has the following contents: The strings that this app uses are defined in the res/values/strings.xml file. Create the directory res/xml if it doesn't exist, and add the file method.xml to it. For our keyboard, we define a single subtype for the en_US locale. The file contains details about the input method and its subtypes. Without this file, the Android operating system won't recognize our Service as a valid IME service. The service tag in the manifest file containes a meta-data tag that references an XML file named method.xml. An IME is declared as a Service in AndroidManifest.xml that uses the BIND_INPUT_METHOD permission, and responds to the action .Īdd the following lines to the application tag of the manifest: Edit the ManifestĪ soft keyboard is considered as an Input Method Editor (IME) by the Android operating system. This app will have no activities so deselect Create Activity and click Finish. Set the minimum required SDK to Android 2.2 and set the target SDK to Android 4.4. Make sure you choose a unique package name. Create a New Projectįire up Eclipse and create a new Android application. You can download it from the Android Developer website. You will need the Eclipse ADT Bundle installed. If you prefer to build your own, read on to find out how. ![]() The app gives you the flexibility to choose one of the 22 built-in keyboard themes or create your own custom theme. If you're in a hurry, check out Android Keyboard Themes, a ready-to-use solution from Envato Market. ![]() Using the Android SDK, you can quickly create a soft keyboard with surprisingly few lines of code, because the SDK takes care of a lot of the low level tasks, such as recognizing key touches, drawing the keyboard, and establishing connections between the keyboard and input fields.In this tutorial, you will learn how to create a fully functional soft keyboard that can serve as your Android device's default keyboard. If you're into Android personalization, knowing how to build a custom, soft keyboard can take your hobby to a whole new level. Instead, they rely on a virtual or soft keyboard to accept user input. Most Android devices don't have a physical keyboard.
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