Android网络连接检测与状态判断代码实现

public boolean isConnect() 
{  
        // 获取手机所有连接管理对象（包括对wi-fi,net等连接的管理）  
        @SuppressWarnings("static-access")
ConnectivityManager connectivity = (ConnectivityManager)this.getSystemService(this.CONNECTIVITY_SERVICE);  
        if (connectivity != null) 
        {  
            // 获取网络连接管理的对象  
         NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null) 
{
for (int i = 0; i < info.length; i++) 
{
//if (info[i].isConnected())  //判断当前网络是否已经连接  
//{
Toast.makeText( this, "检测到网络 : " + info[i].getTypeName(), Toast.LENGTH_SHORT ).show();
//return true;
//}
}
}

        Toast.makeText( this, "总共连接数:" + info.length, Toast.LENGTH_SHORT ).show();
        }  
        
        return false;      
    } 
        

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