zhy_app_shigong_dingyuan/.svn/pristine/8a/8a22d286e3a57475c7d9b2fafc5d835da37db2ea.svn-base

package com.example.myapplication.utils;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.provider.Settings;

/**
 * <h2>Common phone utility methods</h2> <p/> <h3>Common uses:</h3> <code>PhoneUtils.{@link
 * #isRotationEnabled isRotationEnabled}(this);</code> <br /> <code>PhoneUtils.{@link
 * #isNetworkAvailable isNetworkAvailable}(this);</code> <br /> <code>PhoneUtils.{@link
 * #isConnectedWifi isConnectedWifi}(this);</code><br /> <code>PhoneUtils.{@link #isConnectedMobile
 * isConnectedMobile}(this);</code> <br />
 */
public class HttpUtils {

    /**
     * Checks to see if the user has rotation enabled/disabled in their phone settings.
     *
     * @param context The current Context or Activity that this method is called from
     * @return true if rotation is enabled, otherwise false.
     */
    public static boolean isRotationEnabled(Context context) {
        return Settings.System.getInt(context.getContentResolver(),
                Settings.System.ACCELEROMETER_ROTATION, 0) == 1;
    }

    /**
     * Checks to see if the device is connected to a network (cell, wifi, etc).
     *
     * @param context The current Context or Activity that this method is called from
     * @return true if a network connection is available, otherwise false.
     */
    public static boolean isNetworkAvailable(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        return activeNetworkInfo != null && activeNetworkInfo.isConnected();
    }

    /**
     * Check if there is any connectivity to a Wifi network. <p/> Can be used in combination with
     * {@link #isConnectedMobile} to provide different features if the device is on a wifi network
     * or a cell network.
     *
     * @param context The current Context or Activity that this method is called from
     * @return true if a wifi connection is available, otherwise false.
     */
    public static boolean isConnectedWifi(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = cm.getActiveNetworkInfo();
        return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
    }

    /**
     * Check if there is any connectivity to a mobile network <p/> Can be used in combination with
     * {@link #isConnectedWifi} to provide different features if the device is on a wifi network or
     * a cell network.
     *
     * @param context The current Context or Activity that this method is called from
     * @return true if a mobile connection is available, otherwise false.
     */
    public static boolean isConnectedMobile(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = cm.getActiveNetworkInfo();
        return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
    }

}