固定尺寸的横幅广告
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Google 移动广告 SDK 支持固定尺寸广告，这类尺寸适用于自适应横幅广告无法满足需求的场景。
下表列出了标准横幅广告尺寸。
展示广告的容器尺寸必须至少与横幅广告一样大。设置任何内边距都会实际减小容器的可用尺寸。如果容器无法容纳横幅广告，则该广告不会展示，并且系统会记录以下警告：
W/Ads: Not enough space to show ad. Needs 320x50 dp, but only has 288x495 dp.
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最后更新时间 (UTC)：2025-10-20。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-10-20。"],[],["The Google Mobile Ads SDK offers fixed ad sizes as an alternative to adaptive banners. Standard sizes include 320x50 (Banner), 300x250 (Medium Rectangle), 468x60 (IAB Full-size Banner), and 728x90 (IAB Leaderboard). Each has specific device availability, and corresponding constants are defined. The container holding the ad must be equal to or larger than the selected banner size, otherwise, the ad won't display, and a warning will be logged.\n"]]