package com.android.settings.widget.buttons;
import com.android.settings.R;
import com.android.settings.widget.SettingsAppWidgetProvider;
import com.android.settings.widget.StateTracker;
import com.android.settings.widget.WidgetSettings;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.util.Log;
public class WifiApButton extends WidgetButton{
static WifiApButton ownButton=null;
private static final StateTracker sWifiApState = new WifiApStateTracker();
/**
* Subclass of StateTracker to get/set Wifi AP state.
*/
private static final class WifiApStateTracker extends StateTracker {
@Override
public int getActualState(Context context) {
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
if (wifiManager != null) {
return wifiApStateToFiveState(wifiManager.getWifiApState());
}
return SettingsAppWidgetProvider.STATE_UNKNOWN;
}
@Override
protected void requestStateChange(Context context,
final boolean desiredState) {
final WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
if (wifiManager == null) {
Log.d(SettingsAppWidgetProvider.TAG, "No wifiManager.");
return;
}
// Actually request the Wi-Fi AP change and persistent
// settings write off the UI thread, as it can take a
// user-noticeable amount of time, especially if there's
// disk contention.
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... args) {
/**
* Disable Wif if enabling tethering
*/
int wifiState = wifiManager.getWifiState();
if (desiredState
&& ((wifiState == WifiManager.WIFI_STATE_ENABLING) || (wifiState == WifiManager.WIFI_STATE_ENABLED))) {
wifiManager.setWifiEnabled(false);
}
wifiManager.setWifiApEnabled(null, desiredState);
return null;
}
}.execute();
}
@Override
public void onActualStateChange(Context context, Intent intent) {
if (!WifiManager.WIFI_AP_STATE_CHANGED_ACTION.equals(intent
.getAction())) {
return;
}
int wifiState = intent
.getIntExtra(WifiManager.EXTRA_WIFI_AP_STATE, -1);
int widgetState=wifiApStateToFiveState(wifiState);
setCurrentState(context, widgetState);
}
/**
* Converts WifiManager's state values into our Wifi/WifiAP/Bluetooth-common
* state values.
*/
private static int wifiApStateToFiveState(int wifiState) {
switch (wifiState) {
case WifiManager.WIFI_AP_STATE_DISABLED:
return SettingsAppWidgetProvider.STATE_DISABLED;
case WifiManager.WIFI_AP_STATE_ENABLED:
return SettingsAppWidgetProvider.STATE_ENABLED;
case WifiManager.WIFI_AP_STATE_DISABLING:
return SettingsAppWidgetProvider.STATE_TURNING_OFF;
case WifiManager.WIFI_AP_STATE_ENABLING:
return SettingsAppWidgetProvider.STATE_TURNING_ON;
default:
return SettingsAppWidgetProvider.STATE_UNKNOWN;
}
}
}
public void updateState(Context context,
SharedPreferences globalPreferences, int[] appWidgetIds) {
currentState=sWifiApState.getTriState(context);
switch (currentState) {
case SettingsAppWidgetProvider.STATE_DISABLED:
currentIcon=R.drawable.ic_appwidget_settings_wifi_ap_off;
break;
case SettingsAppWidgetProvider.STATE_ENABLED:
currentIcon=R.drawable.ic_appwidget_settings_wifi_ap_on;
break;
case SettingsAppWidgetProvider.STATE_INTERMEDIATE:
// In the transitional state, the bottom green bar
// shows the tri-state (on, off, transitioning), but
// the top dark-gray-or-bright-white logo shows the
// user's intent. This is much easier to see in
// sunlight.
if (sWifiApState.isTurningOn()) {
currentIcon=R.drawable.ic_appwidget_settings_wifi_ap_on;
} else {
currentIcon=R.drawable.ic_appwidget_settings_wifi_ap_off;
}
break;
}
}
public void onReceive(Context context, Intent intent) {
sWifiApState.onActualStateChange(context, intent);
}
public void toggleState(Context context) {
sWifiApState.toggleState(context);
}
public static WifiApButton getInstance() {
if (ownButton==null) {
ownButton = new WifiApButton();
}
return ownButton;
}
@Override
void initButton() {
buttonID=WidgetButton.BUTTON_WIFI_AP;
preferenceName=WidgetSettings.TOGGLE_WIFI_AP;
}
}