(To http://www.cmd100.com/bbs/forum-redirect-tid-8084-goto-lastpost.html)
------------------------------------------------
Public class EX05_17 extends Activity
{
Private TextView mTextView01;
Private CheckBox mCheckBox01;
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 );
MWiFiManager01 = (WifiManager) this. getSystemService (Context. WIFI_SERVICE );
If (mWiFiManager01.isWifiEnabled ())
{
If (mWiFiManager01.getWifiState () = WifiManager. WIFI_STATE_ENABLED)
{
MCheckBox01.setChecked (true );
MCheckBox01.setText (R. string. str_uncheck );
}
Else
{
MCheckBox01.setChecked (false );
MCheckBox01.setText (R. string. str_checked );
}
}
Else
{
MCheckBox01.setChecked (false );
MCheckBox01.setText (R. string. str_checked );
}
MCheckBox01.setOnClickListener (new CheckBox. OnClickListener ()
{
@ Override
Public void onClick (View v)
{
// TODO Auto-generated method stub
If (mCheckBox01.isChecked () = false)
{
Try
{
If (mWiFiManager01.isWifiEnabled ())
{
If (mWiFiManager01.setWifiEnabled (false ))
{
MTextView01.setText (R. string. str_stop_wifi_done );
}
Else
{
MTextView01.setText (R. string. str_stop_wifi_failed );
}
}
Else
{
Switch (mWiFiManager01.getWifiState ())
{
Case WifiManager. WIFI_STATE_ENABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_stop_wifi_failed) + ":" +
GetResources (). getText (R. string. str_wifi_enabling)
);
Break;
Case WifiManager. WIFI_STATE_DISABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_stop_wifi_failed) + ":" +
GetResources (). getText (R. string. str_wifi_disabling)
);
Break;
Case WifiManager. WIFI_STATE_DISABLED:
MTextView01.setText
(
GetResources (). getText (R. string. str_stop_wifi_failed) + ":" +
GetResources (). getText (R. string. str_wifi_disabled)
);
Break;
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)
{
Try
{
If (! MWiFiManager01.isWifiEnabled () & mWiFiManager01.getWifiState ()! = WifiManager. WIFI_STATE_ENABLING)
{
If (mWiFiManager01.setWifiEnabled (true ))
{
Switch (mWiFiManager01.getWifiState ())
{
Case WifiManager. WIFI_STATE_ENABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_wifi_enabling)
);
Break;
Case WifiManager. WIFI_STATE_ENABLED:
MTextView01.setText
(
GetResources (). getText (R. string. str_start_wifi_done)
);
Break;
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 ())
{
Case WifiManager. WIFI_STATE_ENABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_start_wifi_failed) + ":" +
GetResources (). getText (R. string. str_wifi_enabling)
);
Break;
Case WifiManager. WIFI_STATE_DISABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_start_wifi_failed) + ":" +
GetResources (). getText (R. string. str_wifi_disabling)
);
Break;
Case WifiManager. WIFI_STATE_DISABLED:
MTextView01.setText
(
GetResources (). getText (R. string. str_start_wifi_failed) + ":" +
GetResources (). getText (R. string. str_wifi_disabled)
);
Break;
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 (EX05_17.this, str, Toast. LENGTH_LONG). show ();
}
Else
{
Toast. makeText (EX05_17.this, str, Toast. LENGTH_SHORT). show ();
}
}
@ Override
Protected void onResume ()
{
// TODO Auto-generated method stub
Try
{
Switch (mWiFiManager01.getWifiState ())
{
Case WifiManager. WIFI_STATE_ENABLED:
MTextView01.setText
(
GetResources (). getText (R. string. str_wifi_enabling)
);
Break;
Case WifiManager. WIFI_STATE_ENABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_wifi_enabling)
);
Break;
Case WifiManager. WIFI_STATE_DISABLING:
MTextView01.setText
(
GetResources (). getText (R. string. str_wifi_disabling)
);
Break;
Case WifiManager. WIFI_STATE_DISABLED:
MTextView01.setText
(
GetResources (). getText (R. string. str_wifi_disabled)
);
Break;
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 ();
}
}
--------------------------------------------
Strings. xml
<? Xml version = "1.0" encoding = "UTF-8"?>
<Resources>
<String name = "hello"> Hello World, </string>
<String name = "app_name"> 0000100 </string>
<String name = "str_checked"> enable WiFi </string>
<String name = "str_uncheck"> disable WiFi </string>
<String name = "str_start_wifi_failed"> An error occurred while trying to enable the WiFi service. </string>
<String name = "str_start_wifi_done"> the WiFi service is successfully enabled. </string>
<String name = "str_stop_wifi_failed"> An error occurred while trying to disable the Wi-Fi service. </string>
<String name = "str_stop_wifi_done"> the WiFi service is successfully disabled. </string>
<String name = "str_wifi_enabling"> WiFi starts... </string>
<String name = "str_wifi_disabling"> when WiFi is disabled... </string>
<String name = "str_wifi_disabled"> WiFi disabled </string>
<String name = "str_wifi_unknow"> unknown WiFi status... </string>
</Resources> permission <uses-permission android: name = "android. permission. CHANGE_NETWORK_STATE"/>
<Uses-permission android: name = "android. permission. CHANGE_WIFI_STATE"/>
<Uses-permission android: name = "android. permission. ACCESS_NETWORK_STATE"/>
<Uses-permission android: name = "android. permission. ACCESS_WIFI_STATE"/>
<Uses-permission android: name = "android. permission. INTERNET"/>
<Uses-permission android: name = "android. permission. WAKE_LOCK"/>
