Android网络存在与否及类型判断_android 判断某个wifi热点存在与否-优快云博客

本文介绍了一种在他人项目中发现的高效网络状态检测代码，包括Wi-Fi、移动网络及无网络状态的判断方法，方便在其他类中进行网络状态的快速判断。

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在一个他人项目中看见一个写的比较好的网络判断代码

package com.immomo.momo.android.util;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;


public class NetWorkUtils {
	private Context mContext;
	public State wifiState = null;
	public State mobileState = null;

	public NetWorkUtils(Context context) {
		mContext = context;
	}

	public enum NetWorkState {
		WIFI, MOBILE, NONE;

	}

	/**
	 * 获取当前的网络状态
	 * 
	 * @return
	 */
	public NetWorkState getConnectState() {
		ConnectivityManager manager = (ConnectivityManager) mContext
				.getSystemService(Context.CONNECTIVITY_SERVICE);
		manager.getActiveNetworkInfo();
		wifiState = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
				.getState();
		mobileState = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)
				.getState();
		if (wifiState != null && mobileState != null
				&& State.CONNECTED != wifiState
				&& State.CONNECTED == mobileState) {
			return NetWorkState.MOBILE;
		} else if (wifiState != null && mobileState != null
				&& State.CONNECTED != wifiState
				&& State.CONNECTED != mobileState) {
			return NetWorkState.NONE;
		} else if (wifiState != null && State.CONNECTED == wifiState) {
			return NetWorkState.WIFI;
		}
		return NetWorkState.NONE;
	}

}

其他类中很方便的判断是否存在网络或者所处的网络类型

if (mNetWorkUtils.getConnectState() != NetWorkState.NONE)