The defender only joined three weeks ago and had not played for the club before Pulis quit last Thursday.
"I have only been here a few weeks and the last few days have been a bit of a roller-coaster," said Hangeland, who scored on his debut in the 2-1 loss at Arsenal.
"Tony Pulis is a great manager and is one of the reasons I joined but having come here I can see there are a lot of good things about the club.
"Tony Pulis was a massive factor behind the success of Crystal Palace. There was a bit of a shock around the place but it has happened and we have to move on. I am pleased to be here and, if we play like we did against Arsenal at the weekend, we will be successful."
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