[null,null,["最后更新时间 (UTC):2025-02-28。"],[[["The IMA SDK leverages Active View reporting to determine and relay ad visibility to the ad server, ensuring accurate measurements for billing and performance analysis."],["Active View relies on the `AdDisplayContainer` and `VideoAdPlayer` components to gather spatial information about the ad's position on the screen."],["Ad viewability can be confirmed by monitoring HTTP requests for `active_view_vide_measurable_impression` instances and the presence of the `mtos` parameter, signaling successful measurement."],["If custom video displays are used, adjustments to the layout might be needed to guarantee proper metric collection and accurate Active View reporting."]]],[]]