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，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。
| 尺寸（宽 x 高，以 dp 为单位） |
说明 |
适用范围 |
AdSize 常量 |
| 320x50 |
横幅广告 |
手机和平板电脑 |
banner |
| 320x100 |
大型横幅广告 |
手机和平板电脑 |
largeBanner |
| 300x250 |
IAB 中矩形 |
手机和平板电脑 |
mediumRectangle |
| 468x60 |
IAB 全尺寸横幅广告 |
平板电脑 |
fullBanner |
| 728x90 |
IAB 页首横幅广告 |
平板电脑 |
leaderboard |
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)：2025-08-22。
[[["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)：2025-08-22。"],[[["\u003cp\u003eThe Google Mobile Ads SDK offers fixed ad sizes as an alternative to adaptive banners.\u003c/p\u003e\n"],["\u003cp\u003eStandard banner sizes include banner (320x50), large banner (320x100), IAB medium rectangle (300x250), IAB full-size banner (468x60), and IAB leaderboard (728x90) with varying availability across phones and tablets.\u003c/p\u003e\n"],["\u003cp\u003eAd containers must accommodate the chosen ad size, including any padding, to ensure proper display and avoid warnings.\u003c/p\u003e\n"]]],[],null,["Select platform: [Android](/admob/android/banner/fixed-size \"View this page for the Android platform docs.\") [iOS](/admob/ios/banner/fixed-size \"View this page for the iOS platform docs.\") [Flutter](/admob/flutter/banner/fixed-size \"View this page for the Flutter platform docs.\")\n\n\u003cbr /\u003e\n\nThe Google Mobile Ads SDK supports fixed ad sizes for situations where adaptive\nbanners ads don't meet your needs.\n\nThe following table lists the standard banner sizes.\n\n| Size in dp (WxH) | Description | Availability | AdSize constant |\n|------------------|----------------------|--------------------|-------------------|\n| 320x50 | Banner | Phones and tablets | `banner` |\n| 320x100 | Large banner | Phones and tablets | `largeBanner` |\n| 300x250 | IAB medium rectangle | Phones and tablets | `mediumRectangle` |\n| 468x60 | IAB full-size banner | Tablets | `fullBanner` |\n| 728x90 | IAB leaderboard | Tablets | `leaderboard` |\n\nThe size of the container in which you place your ad must be at least as large\nas the banner. Any padding effectively decreases the size of your container. If\nthe container cannot fit the banner ad, the ad isn't shown and the following\nwarning is logged: \n\n W/Ads: Not enough space to show ad. Needs 320x50 dp, but only has 288x495 dp."]]