Question

我想列出Wifi网络。我在列表中寻找的是否有WiFi？我该如何控制它？我不想连接到wifi。如果你有一个特殊的WiFi网络，我想改变铃声模式。例如，ssid：＆＃34; helloworld＆＃34;。如果列表中有helloworld，我想改变铃声模式 - 你能帮助我吗？

Answer 1

有两种情况，当WIFI被禁用且启用WIFI时，我写了两个AsyncTasks来检查WIFI状态并连接到您想要的{ {1}}。

SSID/Network

并像这样使用它们：

//Connect to SSID if WiFi is Enabled
public class ConnectToSSID extends AsyncTask<String, String, Boolean>
            {
                @Override
                protected void onPreExecute() {
                    super.onPreExecute();
                    progress = ProgressDialog.show(MainActivity.this, "Connecting...",
                            "Connecting to \""+SSID+"\" Please Wait...", true);
                }

                @Override
                protected Boolean doInBackground(String... params) {
                    final WifiManager wifiManager = (WifiManager) MainActivity.this.getSystemService(Context.WIFI_SERVICE);
                    WifiConfiguration wifiConfig = new WifiConfiguration();
                    wifiConfig.SSID = String.format("\"%s\"", SSID);
                    wifiConfig.preSharedKey = String.format("\"%s\"", NetworkPass);
                    int netId = wifiManager.addNetwork(wifiConfig);
                    wifiManager.disconnect();
                    wifiManager.enableNetwork(netId, true);
                    wifiManager.reconnect();
                    SystemClock.sleep(3000);
                    ConnectivityManager cm = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
                    NetworkInfo wifi = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
                    return wifi.isConnected();

                }

                @Override
                protected void onPostExecute(Boolean result) {
                    super.onPostExecute(result);
                    progress.dismiss();
                    if(result){
                        Toast.makeText(MainActivity.this,"Successfully Connected to "+SSID,Toast.LENGTH_LONG).show();

                    }else{

                        Toast.makeText(MainActivity.this,"Error Connecting to "+SSID,Toast.LENGTH_LONG).show();
                    }
                }
            }


//IF WiFi is disabled, Enable it and Connect to SSID
public class EnableWifiAndConnectToSSID extends AsyncTask<String, String, Boolean>
        {

            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                progress = ProgressDialog.show(MainActivity.this, "Connecting...",
                        "Connecting to \""+SSID+"\" Please Wait...", true);
            }

            @Override
            protected Boolean doInBackground(String... params) {
                final WifiManager wifiManager = (WifiManager) MainActivity.this.getSystemService(Context.WIFI_SERVICE);
                final WifiConfiguration config = new WifiConfiguration();
                config.SSID = SSID;
                config.preSharedKey = NetworkPass;
                if (!wifiManager.isWifiEnabled()) {
                    wifiManager.setWifiEnabled(true);
                }
                int networkId = wifiManager.addNetwork(config);
                wifiManager.enableNetwork(networkId, true);
                SystemClock.sleep(3000);

                ConnectivityManager cm = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
                NetworkInfo wifi = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
                return wifi.isConnected();

            }

            @Override
            protected void onPostExecute(Boolean result) {
                super.onPostExecute(result);
                progress.dismiss();
                if(result){
                    Toast.makeText(MainActivity.this,"Successfully Connected to "+SSID,Toast.LENGTH_LONG).show();

                }else{
                    Toast.makeText(MainActivity.this,"Error Connecting to "+SSID,Toast.LENGTH_LONG).show();
                }
            }
        }

Android wifi列表控件

1 个答案: