android wifi 设置 控制开关

public class wifi extends Activity
{
  private TextView mTextView01;
  private CheckBox mCheckBox01;
  
  /* 创建WiFiManager对象 */
  private WifiManager mWiFiManager01;
  
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    mTextView01 = (TextView) findViewById(R.id.myTextView1);
    mCheckBox01 = (CheckBox) findViewById(R.id.myCheckBox1);
    
    /* 以getSystemService取得WIFI_SERVICE */
    mWiFiManager01 = (WifiManager)
                     this.getSystemService(Context.WIFI_SERVICE);
    
    /* 判断运行程序后的WiFi状态是否打开或打开中 */
    if(mWiFiManager01.isWifiEnabled())
    {
      /* 判断WiFi状态是否“已打开” */
      if(mWiFiManager01.getWifiState()==
         WifiManager.WIFI_STATE_ENABLED)
      {
        /* 若WiFi已打开，将选取项打勾 */
        mCheckBox01.setChecked(true);
        /* 更改选取项文字为关闭WiFi*/
        mCheckBox01.setText(R.string.str_uncheck);
      }
      else
      {
        /* 若WiFi未打开，将选取项勾选择消 */
        mCheckBox01.setChecked(false);
        /* 更改选取项文字为打开WiFi*/
        mCheckBox01.setText(R.string.str_checked);
      }
    }
    else
    {
      mCheckBox01.setChecked(false);
      mCheckBox01.setText(R.string.str_checked);
    }
    
    /* 捕捉CheckBox的点击事件 */
    mCheckBox01.setOnClickListener(
    new CheckBox.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        // TODO Auto-generated method stub
        
        /* 当选取项为取消选取状态 */
        if(mCheckBox01.isChecked()==false)
        {
          /* 尝试关闭Wi-Fi服务 */
          try
          {
            /* 判断WiFi状态是否为已打开 */
            if(mWiFiManager01.isWifiEnabled() )
            {
              /* 关闭WiFi */
              if(mWiFiManager01.setWifiEnabled(false))
              {
                mTextView01.setText(R.string.str_stop_wifi_done);
              }
              else
              {
                mTextView01.setText(R.string.str_stop_wifi_failed);
              }
            }
            else
            {
              /* WiFi状态不为已打开状态时 */
              switch(mWiFiManager01.getWifiState())
              {
                /* WiFi正在打开过程中，导致无法关闭... */
                case WifiManager.WIFI_STATE_ENABLING:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_stop_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_enabling)
                  );
                  break;
                /* WiFi正在关闭过程中，导致无法关闭... */
                case WifiManager.WIFI_STATE_DISABLING:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_stop_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_disabling)
                  );
                  break;
                /* WiFi已经关闭 */
                case WifiManager.WIFI_STATE_DISABLED:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_stop_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_disabled)
                  );
                  break;
                /* 无法取得或辨识WiFi状态 */
                case WifiManager.WIFI_STATE_UNKNOWN:
                default:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_stop_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_unknow)
                  );
                  break;
              }
              mCheckBox01.setText(R.string.str_checked);
            }
          }
          catch (Exception e)
          {
            Log.i("HIPPO", e.toString());
            e.printStackTrace();
          }
        }
        else if(mCheckBox01.isChecked()==true)
        {
          /* 尝试打开Wi-Fi服务 */
          try
          {
            /* 确认WiFi服务是关闭且不在打开作业中 */
            if(!mWiFiManager01.isWifiEnabled() && 
               mWiFiManager01.getWifiState()!=
               WifiManager.WIFI_STATE_ENABLING )
            {
              if(mWiFiManager01.setWifiEnabled(true))
              {
                switch(mWiFiManager01.getWifiState())
                {
                  /* WiFi正在打开过程中，导致无法打开... */
                  case WifiManager.WIFI_STATE_ENABLING:
                    mTextView01.setText
                    (
                      getResources().getText
                      (R.string.str_wifi_enabling)
                    );
                    break;
                  /* WiFi已经为打开，无法再次打开... */
                  case WifiManager.WIFI_STATE_ENABLED:
                    mTextView01.setText
                    (
                      getResources().getText
                      (R.string.str_start_wifi_done)
                    );
                    break;
                  /* 其它未知的错误 */
                  default:
                    mTextView01.setText
                    (
                      getResources().getText
                      (R.string.str_start_wifi_failed)+":"+
                      getResources().getText
                      (R.string.str_wifi_unknow)
                    );
                    break;
                }
              }
              else
              {
                mTextView01.setText(R.string.str_start_wifi_failed);
              }
            }
            else
            {
              switch(mWiFiManager01.getWifiState())
              {
                /* WiFi正在打开过程中，导致无法打开... */
                case WifiManager.WIFI_STATE_ENABLING:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_start_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_enabling)
                  );
                  break;
                /* WiFi正在关闭过程中，导致无法打开... */
                case WifiManager.WIFI_STATE_DISABLING:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_start_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_disabling)
                  );
                  break;
                /* WiFi已经关闭 */
                case WifiManager.WIFI_STATE_DISABLED:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_start_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_disabled)
                  );
                  break;
                /* 无法取得或识别WiFi状态 */
                case WifiManager.WIFI_STATE_UNKNOWN:
                default:
                  mTextView01.setText
                  (
                    getResources().getText
                    (R.string.str_start_wifi_failed)+":"+
                    getResources().getText
                    (R.string.str_wifi_unknow)
                  );
                  break;
              }
            }
            mCheckBox01.setText(R.string.str_uncheck);
          }
          catch (Exception e)
          {
            Log.i("HIPPO", e.toString());
            e.printStackTrace();
          }
        }
      }
    });
  }
  
  public void mMakeTextToast(String str, boolean isLong)
  {
    if(isLong==true)
    {
      Toast.makeText(wifi.this, str, Toast.LENGTH_LONG).show();
    }
    else
    {
      Toast.makeText(wifi.this, str, Toast.LENGTH_SHORT).show();
    }
  }
  
  @Override
  protected void onResume()
  {
    // TODO Auto-generated method stub
    
    /* 在onResume重写事件为取得打开程序当下WiFi的状态 */
    try
    {
      switch(mWiFiManager01.getWifiState())
      {
        /* WiFi已经在打开状态... */
        case WifiManager.WIFI_STATE_ENABLED:
          mTextView01.setText
          (
            getResources().getText(R.string.str_wifi_enabling)
          );
          break;
        /* WiFi正在打开过程中状态... */
        case WifiManager.WIFI_STATE_ENABLING:
          mTextView01.setText
          (
            getResources().getText(R.string.str_wifi_enabling)
          );
          break;
        /* WiFi正在关闭过程中... */
        case WifiManager.WIFI_STATE_DISABLING:
          mTextView01.setText
          (
            getResources().getText(R.string.str_wifi_disabling)
          );
          break;
        /* WiFi已经关闭 */
        case WifiManager.WIFI_STATE_DISABLED:
          mTextView01.setText
          (
            getResources().getText(R.string.str_wifi_disabled)
          );
          break;
        /* 无法取得或识别WiFi状态 */
        case WifiManager.WIFI_STATE_UNKNOWN:
        default:
          mTextView01.setText
          (
            getResources().getText(R.string.str_wifi_unknow)
          );
          break;
      }
    }
    catch(Exception e)
    {
      mTextView01.setText(e.toString());
      e.getStackTrace();
    }
    super.onResume();
  }
  
  @Override
  protected void onPause()
  {
    // TODO Auto-generated method stub
    super.onPause();
  }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest
  xmlns:android="http://schemas.android.com/apk/res/android"
  package="irdc.wifi"
  android:versionCode="1"
  android:versionName="1.0.0">
  <application
    android:icon="@drawable/icon"
    android:label="@string/app_name">
    <activity
      android:name="irdc.wifi.wifi"
      android:label="@string/app_name">
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>
  </application>
  <!-- 声明WIFI以及网络等相关权限 -->
  <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"></uses-permission>
  <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
  <uses-permission android:name="android.permission.INTERNET"></uses-permission>
  <uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
</manifest> 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:background="@drawable/white"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
  <TextView
    android:id="@+id/myTextView1"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:textColor="@drawable/blue"
    android:text="@string/hello"
  />
  <CheckBox
    android:id="@+id/myCheckBox1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/str_checked"
    android:textColor="@drawable/blue"
  />
</LinearLayout>