Android筆記（1）網絡 wifi等判斷

Context context = listActivity.getApplicationContext();//獲取應用上下文
		ConnectivityManager connectivityManager = (ConnectivityManager) context
				.getSystemService(Context.CONNECTIVITY_SERVICE);//獲取系統的連接服務
		NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();//獲取網絡的連接情況
		if(activeNetInfo.getType()==ConnectivityManager.TYPE_WIFI){
			//判斷WIFI網
		}else if(activeNetInfo.getType()==ConnectivityManager.TYPE_MOBILE) {
			//判斷3G網