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Android安卓获取网络状态

2024-08-06 22:32:01   220人阅读

首先在AndroidManifest.xml添加权限

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

1,判断是否有网络连接

public boolean isNetworkConnected(Context context) {  
    if (context != null) {  
        ConnectivityManager mConnectivityManager = (ConnectivityManager) context  
                .getSystemService(Context.CONNECTIVITY_SERVICE);  
        NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();  
        if (mNetworkInfo != null) {  
            return mNetworkInfo.isAvailable();  
        }  
    }  
    return false;  
}

2.判断WIFI网络是否可用

public boolean isWifiConnected(Context context) {  
    if (context != null) {  
        ConnectivityManager mConnectivityManager = (ConnectivityManager) context  
                .getSystemService(Context.CONNECTIVITY_SERVICE);  
        NetworkInfo mWiFiNetworkInfo = mConnectivityManager  
                .getNetworkInfo(ConnectivityManager.TYPE_WIFI);  
        if (mWiFiNetworkInfo != null) {  
            return mWiFiNetworkInfo.isAvailable();  
        }  
    }  
    return false;  
}

3.判断MOBILE网络是否可用

public boolean isMobileConnected(Context context) {  
    if (context != null) {  
        ConnectivityManager mConnectivityManager = (ConnectivityManager) context  
                .getSystemService(Context.CONNECTIVITY_SERVICE);  
        NetworkInfo mMobileNetworkInfo = mConnectivityManager  
                .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);  
        if (mMobileNetworkInfo != null) {  
            return mMobileNetworkInfo.isAvailable();  
        }  
    }  
    return false;  
}

4.判断网络类型

            //返回值 -1：没有网络  1：WIFI网络2：wap网络3：net网络
	    public static int GetNetype(Context context)
	    { 
	        int netType = -1;  
	        ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 
	        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo(); 
	        if(networkInfo==null)
	        { 
	            return netType; 
	        } 
	        int nType = networkInfo.getType(); 
	        if(nType==ConnectivityManager.TYPE_MOBILE)
	        { 
	            if(networkInfo.getExtraInfo().toLowerCase().equals("cmnet"))
	            { 
	                netType = 3; 
	            } 
	            else
	            { 
	                netType = 2; 
	            } 
	        } 
	        else if(nType==ConnectivityManager.TYPE_WIFI)
	        { 
	            netType = 1; 
	        } 
	        return netType; 
	    }


Android安卓获取网络状态


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