Android 获取是否已连接网络状态

添加网络权限

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

import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.content.Context;

//判断是否已连接网络
public boolean isNetworkConnected(Context context) {
if (context != null) {
ConnectivityManager mConnectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
if (mNetworkInfo != null) {
return mNetworkInfo.isAvailable();
}
}
return false;
}