[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-05 (世界標準時間)。"],[[["\u003cp\u003eSmart Banners are responsive ad units that automatically adjust their size to fit the width of the device screen.\u003c/p\u003e\n"],["\u003cp\u003eSmart Banners have three possible ad heights (32dp, 50dp, 90dp) depending on the screen height of the device.\u003c/p\u003e\n"],["\u003cp\u003eWhen using Smart Banners, specify \u003ccode\u003eSMART_BANNER\u003c/code\u003e as the \u003ccode\u003eadSize\u003c/code\u003e and set the \u003ccode\u003eAdView\u003c/code\u003e width to \u003ccode\u003ematch_parent\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eConsider using newer adaptive banners instead of Smart Banners for enhanced functionality.\u003c/p\u003e\n"]]],["Smart Banners display screen-width ads, adapting to device size and orientation. They use three ad heights: 32 dp (≤ 400 dp screen height), 50 dp (\u003e 400 dp and ≤ 720 dp), and 90 dp (\u003e 720 dp). To implement in XML, set `adSize` to `SMART_BANNER` and `AdView` width to `match_parent`. Programmatically, utilize `AdSize.SMART_BANNER`. Image ads are centered when smaller than the space. The content suggests using adaptive banners instead.\n"],null,["Select platform: [Android](/ad-manager/mobile-ads-sdk/android/banner/smart \"View this page for the Android platform docs.\") [iOS](/ad-manager/mobile-ads-sdk/ios/banner/smart \"View this page for the iOS platform docs.\") [Unity](/ad-manager/mobile-ads-sdk/unity/banner/smart \"View this page for the Unity platform docs.\")\n\n\u003cbr /\u003e\n\n| Try the newer [adaptive banners](/ad-manager/mobile-ads-sdk/android/banner/anchored-adaptive) instead.\n\nSmart Banners are ad units that render screen-width banner ads on any screen\nsize across different devices in either orientation. Smart Banners detect the\nwidth of the device in its current orientation and create the ad view that size.\n\nThree ad heights are implemented in smart banners:\n\n| Ad height | Screen height |\n|-----------|------------------------|\n| 32 dp | ≤ 400 dp |\n| 50 dp | \\\u003e 400 dp and ≤ 720 dp |\n| 90 dp | \\\u003e 720 dp |\n\nTypically, Smart Banners on phones have a height of 50 dp in portrait and 32 dp\nin landscape. On tablets, height is normally 90 dp in both orientations.\n\nWhen an image ad isn't large enough to take up the entire allotted space, the\nimage will be centered, and the space on either side will be filled in.\n\nTo use Smart Banners in XML, specify the constant `SMART_BANNER` for the ad\nsize and set the width of the `AdView` to `match_parent`. For example: \n\n```scdoc\n\u003ccom.google.android.gms.ads.admanager.AdManagerAdView\n xmlns:ads=\"http://schemas.android.com/apk/res-auto\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n ads:adSize=\"SMART_BANNER\"\n ads:adUnitId=\"ca-app-pub-3940256099942544/6300978111\"\u003e\n\u003c/com.google.android.gms.ads.admanager.AdManagerAdView\u003e\n```\n\nTo create a Smart Banner programmatically, use `AdSize.SMART_BANNER` as the ad\nsize: \n\nJava \n\n```java\nAdManagerAdView adView = new AdManagerAdView(this);\nadView.setAdSizes(AdSize.SMART_BANNER);\n```\n\nKotlin \n\n```kotlin\nval adView = AdManagerAdView(this)\nadView.adSizes = AdSize.SMART_BANNER\n```"]]