使用Google提供的PageSpeed Insights API获取Android页面速度指标

代码示例：

1. 首先，需要在项目中添加PageSpeed Insights API的依赖：

dependencies { implementation 'com.google.apis:google-api-services-pagespeedonline:v5-rev20210822-1.32.1' }

2. 创建一个PageSpeed Insights API的服务对象：

import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; import com.google.api.client.http.HttpTransport; import com.google.api.client.json.JsonFactory; import com.google.api.client.json.jackson2.JacksonFactory; import com.google.api.services.pagespeedonline.PagespeedInsights; import com.google.api.services.pagespeedonline.PagespeedInsightsScopes;

import java.io.IOException; import java.security.GeneralSecurityException; import java.util.Arrays;

public class PageSpeedService { private static final String APPLICATION_NAME = "PageSpeed Insights API"; private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance(); private static final String API_KEY = "YOUR_API_KEY";

public static PagespeedInsights getPageSpeedService() throws IOException, GeneralSecurityException {
    HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
    return new PagespeedInsights.Builder(httpTransport, JSON_FACTORY, null)
            .setApplicationName(APPLICATION_NAME)
            .setGoogleClientRequestInitializer(request -> request.setKey(API_KEY))
            .build();
}

}

3. 使用API服务来获取页面速度指标：

import com.google.api.services.pagespeedonline.PagespeedInsights; import com.google.api.services.pagespeedonline.model.PagespeedApiPagespeedResponse;

import java.io.IOException; import java.security.GeneralSecurityException;

public class PageSpeedMetric { public static void main(String[] args) { String url = "http://example.com"; try { PagespeedInsights service = PageSpeedService.getPageSpeedService(); PagespeedApiPagespeedResponse result = service.pagespeedapi().runpagespeed(url).setStrategy("mobile").execute(); System.out.println(result.getLighthouseResult().getCategories().getSpeedIndex().getScore()); } catch (IOException | GeneralSecurityException e) { e.printStackTrace(); } } }

在上述示例中，我们使用PageSpeed Insights API获取了一个