android wifi状态更新
16lz
2021-01-23
private String obtainWifiInfo ( Context context ){// Wifi的连接速度及信号强度： WifiManager wifiManager = ( WifiManager ) context.getSystemService ( WIFI_SERVICE );// WifiInfo wifiInfo = wifiManager.getConnectionInfo(); WifiInfo info = wifiManager.getConnectionInfo ();if ( info.getBSSID () != null ){// 链接信号强度 int strength = WifiManager.calculateSignalLevel ( info.getRssi () ,5 );// 链接速度 int speed = info.getLinkSpeed ();// 链接速度单位 String units = WifiInfo.LINK_SPEED_UNITS;// Wifi源名称 String ssid = info.getSSID ();wifiSsidTv.setText ( ssid );wifiSpeedTv.setText ( String.valueOf ( speed ) );wifiUnitsTv.setText ( units );wifiStrengthTv.setText ( String.valueOf ( strength ) );}return info.toString ();}public BroadcastReceiverrssiReceiver= new BroadcastReceiver (){@Overridepublic void onReceive (Context context ,Intent intent ){obtainWifiInfo ( context );}};@Overridepublic void onResume (){super.onResume ();registerReceiver ( rssiReceiver , new IntentFilter (WifiManager.RSSI_CHANGED_ACTION ) );}@Overridepublic void onPause (){super.onPause ();unregisterReceiver ( rssiReceiver );}更多相关文章
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