Wang Shaojun focused on improving UI reliability in the linuxdeepin/dtkwidget repository by addressing issues with text wrapping and width calculations in DFloatingMessage and DToolTip components. Using C++ and the Qt framework, Wang analyzed and corrected how these widgets handled multi-line content, particularly when newlines were present. The work involved refining the logic that determines widget sizing, ensuring that tooltips and floating messages rendered accurately without truncation or layout inconsistencies. By delivering targeted fixes through two key commits, Wang enhanced the consistency of multi-line text display, reducing user-facing layout problems and contributing to a more stable widget development environment.