Android中判断网络状态

1、判断网络状态是否可用

 //是否有网
    public boolean hasNet(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetworkInfo != null && activeNetworkInfo.isAvailable()) {
            return true;
        } else {
            return false;
        }
    }

2、判断是否为手机信号

 //是否是Mobile
    public boolean isMobile(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetworkInfo != null && activeNetworkInfo.isAvailable() && activeNetworkInfo.getType() == ConnectivityManager.TYPE_MOBILE) {
            return true;
        } else {
            return false;
        }
    }

3、判断是否为Wifi信号

 //是否是Wifi
    public boolean isWifi(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetworkInfo != null && activeNetworkInfo.isAvailable() && activeNetworkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
            return true;
        } else {
            return false;
        }
    }