# Gesture Responder System > Gesture recognition on mobile devices is much more complicated than web. A touch can go through several phases as the app determines what the user's intention is. For example, the app needs to determine if the touch is scrolling, sliding on a widget, or tapping. This can even change during the duration of a touch. There can also be multiple simultaneous touches. from [react-native-docs/gesture-responder-system.html](https://facebook.github.io/react-native/docs/gesture-responder-system.html) ## Responder Lifecycle ![responder lifecycle](/files/-LZp6A2rYYh2WBhg6ZpQ) Image from: Learning React Native: Building Native Mobile Apps with JavaScript by Bonnie Eisenman The gesture responder System allows views to negotiate responsibility for a touch event. A touch event has three phases: start, move and release. Let's break down its lifecycle. ### 1. Request A view can request to become the touch responder in the: * start phase by returning `true` from `onStartShouldSetResponder` * move phase by returning `true` from `onMoveShouldSetResponder` ### 2. Bubbling Similar to the web, these negotiation functions are called in a bubbling pattern. Therefore, the deepest component will become the responder. ### 3. Override However, a parent can choose to override and claim responsibility. This is done by returning true from either `onStartShouldSetResponderCapture` or `onMoveShouldSetResponderCapture`. ### 4. Granted or Rejected If a view's request is granted or rejected `onResponderGrant` or `onResponderReject` is invoked appropriately. ### 5. Respond Finally the view can then respond using one of the following handlers: * `onResponderMove` * `onResponderRelease` * `onResponderTerminationRequest` * `onResponderTerminate` After a view has successfully claimed touch responder status, its relevant event handlers may be called. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://rangle-io.gitbook.io/react-native-workshop/index-7.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.