AirplaneButton.java

package com.android.settings.widget.buttons;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.provider.Settings;

import com.android.settings.R;
import com.android.settings.widget.SettingsAppWidgetProvider;
import com.android.settings.widget.WidgetSettings;

public class AirplaneButton extends WidgetButton {

	static AirplaneButton ownButton=null;

	public void updateState(Context context,
			SharedPreferences globalPreferences, int[] appWidgetIds) {
		if (getState(context)) {
			currentIcon=R.drawable.ic_appwidget_settings_airplane_on;
			currentState=SettingsAppWidgetProvider.STATE_ENABLED;
		} else {
			currentIcon=R.drawable.ic_appwidget_settings_airplane_off;
			currentState=SettingsAppWidgetProvider.STATE_DISABLED;
		}		

	}

	/**
	 * Toggles the state of Airplane
	 * 
	 * @param context
	 */
	public void toggleState(Context context) {
		boolean state= getState(context);
		Settings.System.putInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, state ? 0 : 1);
		// notify change
		Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
		intent.putExtra("state", state);
		context.sendBroadcast(intent);		
	}	

	/**
	 * Gets the state of Airplane.
	 * 
	 * @param context
	 * @return true if enabled.
	 */
	private static boolean getState(Context context) {
		return Settings.System.getInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON,0)==1;		
	}


	public static AirplaneButton getInstance() {
		if (ownButton==null)
			ownButton = new AirplaneButton();

		return ownButton;
	}

	@Override
	void initButton() {
		buttonID=WidgetButton.BUTTON_AIRPLANE;
		preferenceName=WidgetSettings.TOGGLE_AIRPLANE;
	}

}