摘要：
http://www.cnblogs.com/whoislcj/p/6250284.html https://github.com/gyf-dev/ImmersionBar https://github.com/jgilfelt/SystemBarTint/tree/master/sample/sr 阅读全文
摘要：
//下载具体操作 private void download() { try { URL url = new URL(downloadUrl); //打开连接 URLConnection conn = url.openConnection(); //打开输入流 InputStream is = co 阅读全文