Question

我希望在活动开始时在自定义列表视图中提供可用的wifi扫描结果。但是当我们查看其中的wifi列表时，我想只显示SSID和Allowed密钥管理以及与Android手机相同的网络强度。

package com.am.wifi.amitwifi;

import java.util.List;

import android.net.wifi.ScanResult;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends Activity {
       WifiManager mainWifiObj;
       WifiScanReceiver wifiReciever;
       ListView list;
       String wifis[];


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        list = (ListView)findViewById(R.id.listView1);
          mainWifiObj = (WifiManager) getSystemService(Context.WIFI_SERVICE);
          wifiReciever = new WifiScanReceiver();
          mainWifiObj.startScan();

    }
       protected void onPause() {
              unregisterReceiver(wifiReciever);
              super.onPause();
           }

       protected void onResume() {
              registerReceiver(wifiReciever, new IntentFilter(
              WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
              super.onResume();
           }
       class WifiScanReceiver extends BroadcastReceiver {
              @SuppressLint("UseValueOf")
              public void onReceive(Context c, Intent intent) {
                 List<ScanResult> wifiScanList = mainWifiObj.getScanResults();
                 wifis = new String[wifiScanList.size()];
                 for(int i = 0; i < wifiScanList.size(); i++){
                    wifis[i] = ((wifiScanList.get(i)).toString());
                 }

                 list.setAdapter(new ArrayAdapter<String>(getApplicationContext(),
                 android.R.layout.simple_list_item_1,wifis));
              }
           }
}

Answer 1

在循环后添加以下内容

String filtered[] = new String[wifiScanList.size()];
            int counter = 0;
            for (String eachWifi : wifis) {
                String[] temp = eachWifi.split(",");
                filtered[counter] = temp[0] +temp[2] +temp[3];//0->SSID, 2->Key Management 3-> Strength
                counter++;
            }
            list.setAdapter(new ArrayAdapter<String>(getApplicationContext(),
                    android.R.layout.simple_list_item_1, filtered));

要删除多余的字词，您可以执行以下操作：

temp[0].substring(5).trim()

这将删除前5个字符并修剪任何空格。也和其他人一样。并使用\n开始下一行。

或者最好的想法是使用自定义适配器。请参阅我的回答here

祝你好运。

在自定义列表视图中获取可用的wifi扫描结果

1 个答案: