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public class Test extends Activity { private ImageView img; private Handler handlers; private String url="http://changsha.ejoooo.com/api/jianlijjlists.aspx?userid=544"; private String

Android AsyncTask异步实现大文件下载public class Third extends Activity { private Button btn; private ImageView iv; private TextView textview;

android实现文件下载1：通过I/O流下载案例；2：通过系统自带下载类 DownloadManager下载文件；3：通过xUtils第三方框架下载，需导入xUtils-2.6.14.jar架包；4：效果图。