Android下载Zip到SD卡?

可以做到的。你到底在找什么?下载程序或如何进行检查? 这里是下载方法,您应该在AsyncTask中运行它。

/**
 * Downloads a remote file and stores it locally
 * @param from Remote URL of the file to download
 * @param to Local path where to store the file
 * @throws Exception Read/write exception
 */
static private void downloadFile(String from, String to) throws Exception {
    HttpURLConnection conn = (HttpURLConnection)new URL(from).openConnection();
    conn.setDoInput(true);
    conn.setConnectTimeout(10000); // timeout 10 secs
    conn.connect();
    InputStream input = conn.getInputStream();
    FileOutputStream fOut = new FileOutputStream(to);
    int byteCount = 0;
    byte[] buffer = new byte[4096];
    int bytesRead = -1;
    while ((bytesRead = input.read(buffer)) != -1) {
        fOut.write(buffer, 0, bytesRead);
        byteCount += bytesRead;
    }
    fOut.flush();
    fOut.close();
}

// check for wifi or 3g
ConnectivityManager mgrConn = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
TelephonyManager mgrTel = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
if ((mgrConn.getActiveNetworkInfo()!=null && mgrConn.getActiveNetworkInfo().getState()==NetworkInfo.State.CONNECTED)
       || mgrTel.getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS) { 
 ...

否则,当人们需要通过慢速电话网络下载100m时,他们会发疯。