我们建议您遵循以下几项最佳做法，以确保使用 IMA SDK for Android 时您的应用可在 Android TV 上正常运行。
首先，熟悉开发 Android TV 应用。具体而言，请确保按照入门指南中的说明针对 TV 设置 activity。此外，您还需要处理 TV 导航，确保用户可以在 Android TV 上顺畅导航您的应用。
处理可跳过式广告
SDK 针对类似 TV 的设备优化了可跳过式广告格式，例如移除了与了解详情按钮互动的功能。默认情况下，当“跳过”按钮可用时，SDK 会将焦点设置为“跳过”按钮，以便用户在 Android TV 上跳过广告。因此，无需执行额外的操作即可支持可跳过的广告。
您可以通过调用 AdsRenderingSettings.setFocusSkipButtonWhenAvailable() 来配置此项。
如需详细了解支持的广告，请查看兼容性矩阵。
处理 VAST 图标后备图片
IMA SDK 会检测、呈现并处理用户与 VAST 图标后备图片的互动情况。您的应用应监听 ICON_TAPPED 和 ICON_FALLBACK_IMAGE_CLOSED 事件，以处理使用“为什么显示该广告”(WTA) 的广告的播放。
添加一个布尔值，以跟踪是否展示 VAST 图标后备图片。然后，监听 ICON_TAPPED 和 ICON_FALLBACK_IMAGE_CLOSED 以处理围绕 VAST 图标后备图片的广告播放。请参阅以下代码段，通过示例了解高级示例中如何处理此过程。
app/src/main/java/com/google/ads/interactivemedia/v3/samples/videoplayerapp/VideoPlayerController.java
// Copyright 2014 Google Inc. All Rights Reserved.
package com.google.ads.interactivemedia.v3.samples.videoplayerapp;
import android.app.UiModeManager;
import android.content.Context;
...
// Tracks if the SDK is playing an ad, since the SDK might not necessarily use
// the video player provided to play the video ad.
private boolean isAdPlaying;
// Tracks whether the SDK has a VAST icon fallback image showing.
private boolean isConnectedTvFallbackImageShowing = false;
// View that handles taps to toggle ad pause/resume during video playback.
private View playPauseToggle;
// View that we can write log messages to, to display in the UI.
private Logger log;
...
adsManager.addAdEventListener(
new AdEvent.AdEventListener() {
/** Responds to AdEvents. */
@Override
public void onAdEvent(AdEvent adEvent) {
...
case CONTENT_RESUME_REQUESTED:
// AdEventType.CONTENT_RESUME_REQUESTED is fired when the ad is
// completed and you should start playing your content.
resumeContent();
break;
case ICON_TAPPED:
// The user has tapped a VAST icon fallback image. On Android
// mobile apps, the SDK will navigate to the landing page. On
// Connected TV devices, the SDK will present a modal dialog
// containing the VAST icon fallback image.
// Check if the app is running on a TV device.
UiModeManager uiModeManager = (UiModeManager) getSystemService(UI_MODE_SERVICE);
if (uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_TELEVISION) {
isConnectedTvFallbackImageShowing = true;
}
// Focus the IMA WebView for easier access to ad UI elements.
adsManager.focus();
break;
case PAUSED:
if (isConnectedTvFallbackImageShowing) {
// Do not show the controls; continue to leave the controls in
// the hands of the ads SDK.
break;
}
isAdPlaying = false;
videoPlayerWithAdPlayback.enableControls();
break;
case ICON_FALLBACK_IMAGE_CLOSED:
// The user has closed the VAST icon fallback image. This may
// be a good time to resume ad playback if the user is ready to
// continue playing the ad. This event only fires for Connected
// TV devices.
isConnectedTvFallbackImageShowing = false;
adsManager.resume();
break;
case RESUMED:
isAdPlaying = true;
videoPlayerWithAdPlayback.disableControls();
break;