解决Android 8.0和9.0无法获取SSID (unknow ssid)

电玩女神 2022-04-13 05:45 1249阅读 0赞

一直都在做wifi相关的东西

今天遇到一个问题是8.0的机型无法获取到ssid

然后就查询了一番 终于找到解决方案

# wifi名称获取代码 #

# Android8.0 解决方案 #

### 一、就是用下面的代码可以获取（不建议使用） ###

if (Build.VERSION.SDK_INT > Build.VERSION_CODES.O) {
                    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
                    assert cm != null;
                    NetworkInfo info = cm.getActiveNetworkInfo();
                    if (info != null && info.isConnected()) {
                        ssid = info.getExtraInfo();
                        logger.info("WiFi SSID: " + ssid);
    
                    }
                }

**二、8.0强烈推荐 申请权限 定位权限就可获取**

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

### 9.0在8.0基础上新增权限 ###

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

### 9.0华为手机无法获取解决方案 ###

WifiManager my_wifiManager = ((WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE));            assert my_wifiManager != null;            wifiInfo = my_wifiManager.getConnectionInfo();            ssid = wifiInfo.getSSID();int networkId = wifiInfo.getNetworkId();                    List<WifiConfiguration> configuredNetworks = my_wifiManager.getConfiguredNetworks();                    for (WifiConfiguration wifiConfiguration:configuredNetworks){
                               if (wifiConfiguration.networkId==networkId){
                                   ssid=wifiConfiguration.SSID;                            break;                        }                    }

**权限申请方式**

使用开源库

*  
 *

implementation 'com.yanzhenjie:permission:2.0.0-rc12'

https://github.com/yanzhenjie/AndPermission

if (AndPermission.hasPermissions(this, Manifest.permission.ACCESS_WIFI_STATE, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION)) {
                   if (NetUtils.getInstance().isWifi(TabActivity.this)) {
                       startActivity(new Intent(TabActivity.this, WifiManagerActivity.class));                overridePendingTransition(R.anim.in_from_right, R.anim.out_to_right);            } else {
                       com.xinli.wenet.utils.Toast.show(TabActivity.this, "请连接Wi-Fi后操作", 1);
                }        } else {
                   requestPermission(Manifest.permission.ACCESS_WIFI_STATE, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION);        }

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