1、首先新建了布局模板XML文件vifi.xml,代码很简单,如下:
android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">
android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" />
2、写java代码,新建个Activity,代码如下:
package com.eoeandroid.demo.testcode; import java.util.List; import android.app.Activity; 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 android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.widget.TextView; public class WifiTester extends Activity { TextView mainText; WifiManager mainWifi; WifiReceiver receiverWifi; List StringBuilder sb = new StringBuilder(); public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.vifi); setTitle("eoe教程: Wifi Test. -by:IceskYsl"); mainText = (TextView) findViewById(R.id.wifi); mainWifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); receiverWifi = new WifiReceiver(); registerReceiver(receiverWifi, new IntentFilter( WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); mainWifi.startScan(); mainText.setText("\nStarting Scan...\n"); } public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, 0, 0, "Refresh"); return super.onCreateOptionsMenu(menu); } public boolean onMenuItemSelected(int featureId, MenuItem item) { mainWifi.startScan(); mainText.setText("Starting Scan"); return super.onMenuItemSelected(featureId, item); } protected void onPause() { unregisterReceiver(receiverWifi); super.onPause(); } protected void onResume() { registerReceiver(receiverWifi, new IntentFilter( WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); super.onResume(); } class WifiReceiver extends BroadcastReceiver { public void onReceive(Context c, Intent intent) { sb = new StringBuilder(); wifiList = mainWifi.getScanResults(); for (int i = 0; i < wifiList.size(); i++) { sb.append(new Integer(i + 1).toString() + "."); sb.append((wifiList.get(i)).toString()); sb.append("\n\n"); } mainText.setText(sb); } } } 3、申请相关权限,代码如下:
4、OK,就这些,允允许下,效果看附件图片,我扫描到我这有2个热点。 |