SecurityException

摘录自http://www.cnblogs.com/haorenjie/archive/2012/09/12/2682655.html

public boolean checkNetwork() {

    boolean result = false;

    try {

        Context context = this.getApplicationContext();

        ConnectivityManager connectivityMgr = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo networkInfo = connectivityMgr.getActiveNetworkInfo();

        if (networkInfo != null) {

            result = networkInfo.isAvailable();

        }

    }

    catch (Exception e) {

        Log.e("test", "get active network info leave: " + e.getMessage());

    }

    return result;

}

　

简单的网络检查，却在connectivityMgr.getActiveNetworkInfo();时抛出如下异常：

java.lang.SecurityException: ConnectivityService: Neither user 10037 nor current process has android.permission.ACCESS_NETWORK_STATE.

原因：SecurityException，显然是权限不够。

解决方案：在AndroidManifest.xml中，加入如下权限：

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