wtf is react-native-slider?

React Native Slider is a ready-made component for React Native apps that gives you that familiar horizontal bar with a draggable knob, the kind you see when adjusting volume, screen brightness, or seeking through a video. Instead of building one from scratch for every project, developers can drop this in and get a polished slider that works consistently across iOS, Android, Windows, and the web. Under the hood, it taps into the native slider controls each platform already provides, the iOS Slider and Android's SeekBar, so users get a control that feels native and performs smoothly on their device. Developers configure it with straightforward settings: set a minimum and maximum value, pick colors for the track, choose a thumb size, and optionally enable stepped values so the knob snaps to fixed intervals. The component fires events when the user starts dragging, while dragging, and when they release, so the app can respond in real time. This is for teams building mobile or cross-platform apps in React Native who need a slider without reinventing the wheel. A music streaming app might use it for a playback progress bar, a fitness app for setting a target distance, or a settings screen for adjusting font size. The slider supports custom step markers and step numbers, so you can label each notch along the track or render a custom component at each step, useful for things like surveys where each position maps to a labeled answer. One notable detail is that some properties behave differently depending on platform. For example, tapping the track to jump the thumb works on iOS but not Android, and vertical orientation is currently a Windows-only feature. The README includes a compatibility table so developers can match the right version to their React Native setup, since the project was originally extracted from React Native's core and is now maintained independently by the Callstack team.