作者:程式員小冰
轉載請說明出處。
import java.util.List;
import android.content.Context;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
/*----------------------------------------------------------------
// 檔案名:NetworkAvailableUtils
// 檔案功能描述: 判斷網絡狀态的工具類
//isNetworkAvailable 、isGpsEnabled、isWifiEnabled、is3rd、isWifi
//----------------------------------------------------------------*/
/**
* @author 部落格
*
* David編寫: 微網誌:http://weibo.com/93sec.cc
*
* @version V1.0正式版
*
* @process
*
* @Note weibo.com/mcxiaobing
*
* @dateTime 2015-10-18下午1:46:20
*
*/
public class NetworkAvailableUtils {
/**
* 判斷是否聯網
*
* @param context
* @return
*/
public static boolean isNetworkAvailable(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (cm == null) {
} else {
// 如果僅僅是用來判斷網絡連接配接
// 則可以使用 cm.getActiveNetworkInfo().isAvailable();
NetworkInfo[] info = cm.getAllNetworkInfo();
if (info != null) {
for (int i = 0; i < info.length; i++) {
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
}
return false;
}
/**
* 判斷GPS是否打開
*
* @param context
* @return
*/
public static boolean isGpsEnabled(Context context) {
LocationManager lm = ((LocationManager) context
.getSystemService(Context.LOCATION_SERVICE));
List<String> accessibleProviders = lm.getProviders(true);
return accessibleProviders != null && accessibleProviders.size() > 0;
}
/**
* 三、判斷WIFI是否打開
* @param context
* @return
*/
public static boolean isWifiEnabled(Context context) {
ConnectivityManager mgrConn = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
TelephonyManager mgrTel = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
return ((mgrConn.getActiveNetworkInfo() != null && mgrConn
.getActiveNetworkInfo().getState() == NetworkInfo.State.CONNECTED) || mgrTel
.getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS);
}
/**
* 四、判斷是否是3G網絡
* @param context
* @return
*/
public static boolean is3rd(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkINfo = cm.getActiveNetworkInfo();
if (networkINfo != null
&& networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {
return true;
}
return false;
}
/**
* 五、判斷是wifi還是3g網絡,使用者的展現性在這裡了,wifi就可以建議下載下傳或者線上播放。
* @param context
* @return
*/
public static boolean isWifi(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkINfo = cm.getActiveNetworkInfo();
if (networkINfo != null
&& networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {
return true;
}
return false;
}
}