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filepicker is a high-performance, all-in-one media and file selection library designed for the Android platform. It combines the classic visual styles of WeChat and TikTok and innovatively implements smooth, multi-select gestures similar to Huawei's gallery, greatly enhancing user interaction experience. This library not only supports smooth preview and selection of images, videos, and GIFs, but also fully supports audio, various office documents (PDF, DOC, PPT, Excel, TXT), APK installation packages, and multiple compressed file formats (ZIP, RAR, 7Z, etc.). Additionally, it provides powerful custom suffix filtering functionality, allowing developers to freely combine any file suffix for filtering. In terms of performance and architecture, filepicker has undergone deep optimization: - Excellent loading performance: Optimized media library scanning mechanism to avoid blocking the main thread, achieving instant opening in scenarios with tens of thousands of images. - Smooth interaction: Selection status management uses hash table optimization, maintaining O(1) complexity for dragging and sliding multi-select in scenarios with thousands of images. - Highly customizable: Through FilePickerUIConfig, developers can easily customize the display of top category tabs, bottom preview, original image options, folder alias mapping, and various prompt texts. - Strong compatibility: Perfectly adapts to Android's bottom virtual navigation bar, supports Activity and Fragment calls, and provides useful features such as single-select immediate return and pre-selected list.