同时获得网络信息ConnectivityManager崩溃 [英] ConnectivityManager is crashing while getting network info

问题描述

我是新来的Andr​​oid和当我给下面的代码片段，我的Andr​​oid应用程序崩溃。

I am new to android and when i give the following snippet, my android application is crashing.

    ConnectivityManager manager= (ConnectivityManager)this.getSystemService(Context.CONNECTIVITY_SERVICE);
    manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); // Application is crashing in this line.

我还检查了那里我给了互联网允许应用程序的Andr​​oidManifest.xml中。任何帮助将是我今后的工作真的很有用。

I also checked the androidmanifest.xml where i gave the internet permission to the application. Any help would be really useful for my further work.

-Thanks，
罗恩..

-Thanks, Ron..

推荐答案

我不知道你想要说什么，但如果你想检查互联网连接，那么你可以使用这个code

I am not sure what you want to say but if you want to check internet connection then you can use this code

/**
     * THIS IS FUNCTION FOR CHECKING INTERNET CONNECTION
     * @return TRUE IF INTERNET IS PRESENT ELSE RETURN FALSE
     */
    public boolean checkInternetConnection() {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo activeNetworkInfo = cm.getActiveNetworkInfo();
        return (activeNetworkInfo != null && activeNetworkInfo.isAvailable() && activeNetworkInfo.isConnected());
    }

和不要忘记

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

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