安卓判断某个应用是否有联网权限

àì夳堔傛蜴生んèń 2023-10-04 11:49 14阅读 0赞

原理类似 电脑ping命令

public static boolean isNetworkOnline() {
    
            Runtime runtime = Runtime.getRuntime();
            Process ipProcess = null;
            try {
                ipProcess = runtime.exec("ping -c 5 -w 4 223.5.5.5");
                InputStream input = ipProcess.getInputStream();
    
                BufferedReader in = new BufferedReader(new InputStreamReader(input));
                StringBuffer stringBuffer = new StringBuffer();
                String content = "";
                while ((content = in.readLine()) != null) {
                    stringBuffer.append(content);
                }
    
                int exitValue = ipProcess.waitFor();
                if (exitValue == 0) {
                    //WiFi连接，网络正常
                    return true;
                } else {
                    if (stringBuffer.indexOf("100% packet loss") != -1) {
                        XLog.showArgsInfo("网络丢包严重，判断为网络未连接");
                        return false;
                    } else {
                        XLog.showArgsInfo("网络未丢包，判断为网络连接");
                        return true;
                    }
                }
            } catch (IOException | InterruptedException e) {
                e.printStackTrace();
            } finally {
                if (ipProcess != null) {
                    ipProcess.destroy();
                }
                runtime.gc();
            }
            return false;
        }

[https://blog.csdn.net/yyanjun/article/details/81197991][https_blog.csdn.net_yyanjun_article_details_81197991]

参考

public class Ping extends AsyncTask<String, Boolean, Boolean> {
            @Override
            protected Boolean doInBackground(String... strings) {
                try {
                    Process p = Runtime.getRuntime().exec("ping -c 1 -w 3 " + strings[0]);
                    InputStream input = p.getInputStream();
                    InputStreamReader isr = new InputStreamReader(input);
                    BufferedReader br = new BufferedReader(isr);
                    String line;
                    StringBuilder builder = new StringBuilder();
                    while ((line = br.readLine()) != null) {
                        builder.append(line);
                    }
                    br.close();
                    isr.close();
                    input.close();
                    br.close();
                    Logs.i("返回的数据："+builder+"  对比："+builder.toString().contains("ttl"));
                    /*如果Ip地址Ping成功后数据里面会有ttl这个数据,所以对比这个字符串即可*/
                    return builder.toString().contains("ttl");
                } catch (MalformedURLException e) {
                    Logs.e(e.toString());
                    return false;
                } catch (IOException e) {
                    Logs.e(e.toString());
                    return false;
                }
            }
     
     
            @Override
            protected void onPostExecute(Boolean isPing) {
                Logs.v("Ping的结果：" + isPing);
                if(isPing){
                    /*设备Ip地址ping成功后向后台发送数据*/
                    if (!TextUtils.isEmpty(cllx)) {
                        if (INSPECT_START.equals(cllx)) {
                            //查验开始
                            inspectStart();
                        } else if (INSPECT_END.equals(cllx)) {
                            //查验结束
                            inspectEnd();
                        }
                    }
    //                DialogNoticeUtil.show(RequestAction.this,"执法记录仪连接成功");
                }else {
                    DialogNoticeUtil.show(RequestAction.this,"执法记录仪连接失败");
                }
            }
    }
    
    ————————————————
    版权声明：本文为CSDN博主「ChampionDragon」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
    原文链接：https://blog.csdn.net/xxdw1992/article/details/103582908

[https_blog.csdn.net_yyanjun_article_details_81197991]: https://blog.csdn.net/yyanjun/article/details/81197991