Android Keycode Reference
Complete lookup table for Android key event codes
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Keycode Reference Table
| Code | Constant Name | Description | Category |
|---|
When to Use Android Keycode Reference
Event Handling
When implementing onKeyDown() or onKeyUp() methods in Android apps and need to identify specific key events by their numeric codes.
Hardware Integration
When configuring custom hardware keyboards, remote controls, or gamepad controllers to work with Android devices and applications.
Debugging Input Events
When debugging input-related issues and need to understand which keycode numbers are being generated by specific key presses during testing.
Learning Android Development
When learning Android development and need to understand the relationship between key constants and their numeric values for educational purposes.
Code Documentation
When writing technical documentation or code comments that reference specific Android keycodes and need accurate constant names and descriptions.
Testing & QA
When performing quality assurance testing on Android applications and need to verify correct keycode handling across different input scenarios.
Frequently Asked Questions
What is an Android keycode?
An Android keycode is a numeric identifier assigned to each key input event in the Android system. When a user presses a key, Android generates a KeyEvent with a specific keycode number that identifies which key was pressed. For example, the back button has keycode 4 (KEYCODE_BACK), and the volume up button has keycode 24 (KEYCODE_VOLUME_UP).
How do I use Android keycodes in my app?
You can handle Android keycodes by overriding the onKeyDown() or onKeyUp() methods in your Activity or View. Use event.getKeyCode() to get the keycode number and compare it with KeyEvent constants like KEYCODE_BACK or KEYCODE_MENU. You can also use switch statements with the keycode values to handle different key events appropriately.
Is this Android keycode reference tool free?
Yes, our Android keycode reference tool is completely free to use. You can search, lookup, and copy keycode information without any limitations or registration required. We provide this tool to help developers work more efficiently with Android key events.
Can I search for keycodes by name or number?
Yes, our tool supports bidirectional search. You can search by entering either the keycode number (like 24) to find the key name (KEYCODE_VOLUME_UP), or search by key name to find its numeric code. The search is case-insensitive and supports partial matches for easy discovery.
What Android versions are these keycodes compatible with?
The keycodes in our reference table are compatible with Android API level 1 and above. Some newer keycodes were introduced in later API levels, and we indicate the API level where applicable. The core keycodes like navigation, volume, and basic input keys have been consistent across all Android versions.
How can I copy keycode information?
You can copy individual keycode values by clicking on them in the table, or use the "Copy Selected" button to copy multiple selected rows. You can also export the entire filtered results as CSV or JSON format for use in your development projects or documentation.
Are there keycodes for gamepad and media controls?
Yes, Android includes keycodes for gamepad buttons (like KEYCODE_BUTTON_A, KEYCODE_BUTTON_X), media controls (KEYCODE_MEDIA_PLAY, KEYCODE_MEDIA_PAUSE), and many other specialized input devices. Our tool includes all official Android keycodes organized by category for easy browsing.
Can I use this tool offline?
While our tool is web-based and requires internet access to load, you can bookmark frequently used keycodes or export the reference data for offline use. We also support keyboard shortcuts (Ctrl+F for search, Ctrl+C for copy) to make the tool efficient for regular use.
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