package com.example.wifimanager;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import com.example.wifimanager.R;
import com.example.wifimanager.WifiApManager;
import com.example.wifimanager.ClientScanResult;
public class MainActivity extends Activity {
TextView textView1;
WifiApManager wifiApManager;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView1 = (TextView) findViewById(R.id.textView1);
wifiApManager = new WifiApManager(MainActivity.this);
scan();
}
private void scan() {
ArrayList<ClientScanResult> clients = wifiApManager.getClientList(false);
textView1.append("WifiApState: " + wifiApManager.getWifiApState() + "\n\n");
textView1.append("Clients: \n");
for (ClientScanResult clientScanResult : clients) {
textView1.append("####################\n");
textView1.append("IpAddr: " + clientScanResult.getIpAddr() + "\n");
textView1.append("Device: " + clientScanResult.getDevice() + "\n");
textView1.append("HWAddr: " + clientScanResult.getHWAddr() + "\n");
textView1.append("isReachable: " + clientScanResult.isReachable() + "\n");
}
}
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, 0, 0, "Get Clients");
menu.add(0, 1, 0, "Open AP");
menu.add(0, 2, 0, "Close AP");
return super.onCreateOptionsMenu(menu);
}
public boolean onMenuItemSelected(int featureId, MenuItem item) {
switch (item.getItemId()) {
case 0:
scan();
break;
case 1:
wifiApManager.setWifiApEnabled(null, true);
break;
case 2:
wifiApManager.setWifiApEnabled(null, false);
break;
}
return super.onMenuItemSelected(featureId, item);
}
}
=========================
package com.example.wifimanager;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.util.ArrayList;
import android.content.Context;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.util.Log;
public class WifiApManager {
private final WifiManager mWifiManager;
public WifiApManager(Context context) {
mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
}
public boolean setWifiApEnabled(WifiConfiguration wifiConfig, boolean enabled) {
try {
if (enabled) { // disable WiFi in any case
mWifiManager.setWifiEnabled(false);
}
Method method = mWifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
return (Boolean) method.invoke(mWifiManager, wifiConfig, enabled);
} catch (Exception e) {
Log.e(this.getClass().toString(), "", e);
return false;
}
}
public WIFI_AP_STATE getWifiApState() {
try {
Method method = mWifiManager.getClass().getMethod("getWifiApState");
int tmp = ((Integer)method.invoke(mWifiManager));
// Fix for Android 4
if (tmp > 10) {
tmp = tmp - 10;
}
return WIFI_AP_STATE.class.getEnumConstants()[tmp];
} catch (Exception e) {
Log.e(this.getClass().toString(), "", e);
return WIFI_AP_STATE.WIFI_AP_STATE_FAILED;
}
}
public boolean isWifiApEnabled() {
return getWifiApState() == WIFI_AP_STATE.WIFI_AP_STATE_ENABLED;
}
public WifiConfiguration getWifiApConfiguration() {
try {
Method method = mWifiManager.getClass().getMethod("getWifiApConfiguration");
return (WifiConfiguration) method.invoke(mWifiManager);
} catch (Exception e) {
Log.e(this.getClass().toString(), "", e);
return null;
}
}
public boolean setWifiApConfiguration(WifiConfiguration wifiConfig) {
try {
Method method = mWifiManager.getClass().getMethod("setWifiApConfiguration", WifiConfiguration.class);
return (Boolean) method.invoke(mWifiManager, wifiConfig);
} catch (Exception e) {
Log.e(this.getClass().toString(), "", e);
return false;
}
}
public ArrayList<ClientScanResult> getClientList(boolean onlyReachables) {
return getClientList(onlyReachables, 300);
}
public ArrayList<ClientScanResult> getClientList(boolean onlyReachables, int reachableTimeout) {
BufferedReader br = null;
ArrayList<ClientScanResult> result = null;
try {
result = new ArrayList<ClientScanResult>();
br = new BufferedReader(new FileReader("/proc/net/arp"));
String line;
while ((line = br.readLine()) != null) {
String[] splitted = line.split(" +");
if ((splitted != null) && (splitted.length >= 4)) {
// Basic sanity check
String mac = splitted[3];
if (mac.matches("..:..:..:..:..:..")) {
boolean isReachable = InetAddress.getByName(splitted[0]).isReachable(reachableTimeout);
if (!onlyReachables || isReachable) {
result.add(new ClientScanResult(splitted[0], splitted[3], splitted[5], isReachable));
}
}
}
}
} catch (Exception e) {
Log.e(this.getClass().toString(), e.getMessage());
} finally {
try {
br.close();
} catch (IOException e) {
Log.e(this.getClass().toString(), e.getMessage());
}
}
return result;
}
}
프로젝트만 새로 생성했을뿐 mainActivity 나 wifiApManager 는 구글링으로 받은 예제에 포함된 파일입니다
한 패키지에 묶어서 프로젝트에 추가했고 설정이 잘못된건지 이유가 뭔지 도무지 모르겠습니다 도움 부탁드립니다
옮기기전에 예제 자체는 정상적으로 작동됩니다 두 파일 코드 내용으로 연속으로 올려드립니다
아무쪼록 고수분들의 조언기다리겠습니다
