在Android上实现WiFi扫描器并仅列出特定SSID的网络,可以使用以下代码示例:
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiManager;
import java.util.ArrayList;
import java.util.List;
public class WifiScanner {
private Context context;
private WifiManager wifiManager;
private WifiScanReceiver wifiScanReceiver;
private List wifiSSIDs;
public WifiScanner(Context context, List wifiSSIDs) {
this.context = context;
this.wifiSSIDs = wifiSSIDs;
wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
wifiScanReceiver = new WifiScanReceiver();
}
public void startScanning() {
context.registerReceiver(wifiScanReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
wifiManager.startScan();
}
public void stopScanning() {
context.unregisterReceiver(wifiScanReceiver);
}
private class WifiScanReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
List scanResults = wifiManager.getScanResults();
List filteredScanResults = new ArrayList<>();
for (ScanResult scanResult : scanResults) {
if (wifiSSIDs.contains(scanResult.SSID)) {
filteredScanResults.add(scanResult);
}
}
// 在这里处理筛选后的扫描结果
for (ScanResult filteredScanResult : filteredScanResults) {
String ssid = filteredScanResult.SSID;
String bssid = filteredScanResult.BSSID;
int signalStrength = filteredScanResult.level;
// 其他处理代码...
}
}
}
}
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import java.util.Arrays;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private WifiScanner wifiScanner;
private List wifiSSIDs = Arrays.asList("SSID1", "SSID2", "SSID3"); // 替换为你想要列出的特定SSID
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
wifiScanner = new WifiScanner(this, wifiSSIDs);
wifiScanner.startScanning();
}
@Override
protected void onDestroy() {
super.onDestroy();
wifiScanner.stopScanning();
}
}
这样,你将获得一个WiFi扫描器,它将仅列出特定SSID的网络,并且可以在MainActivity中的onReceive方法中对扫描结果进行处理。记得将"SSID1", "SSID2", "SSID3"
替换为你想要列出的特定SSID。