LONDON — It was a case of the famous interviewing the famous. The BBC aired an interview on Wednesday that was unusual in at least a couple of respects: The man answering the questions was former President Barack Obama, and the man asking them was his friend Prince Harry.
The prince took the seat as a guest editor for BBC Radio 4’s flagship program, “Today,” and broadcast a long-awaited interview in which he questioned the former president about the day he left the White House, his work since leaving office and his plans for the future.
Neither party mentioned President Trump by name, but Mr. Obama’s successor was never far from the conversation. The two men discussed the risks of using social media and the corrosion of civil discourse.
The interview was recorded in Toronto in September, when Prince Harry and Mr. Obama met during the Invictus Games, a sporting competition for injured military members and veterans.
The highlights of the interview:
Since leaving office in January, Mr. Obama has more time on his hands. He gets to wake up later, spend more time with his family and take control of his day, something he says he couldn’t do as president. But the things that are important to him have not changed.
Now that he no longer has the authority that came with being president, Mr. Obama said he relies on persuasion rather than legislation.
“A lot of the things that still motivate me and move me continue to this day,” he added.
While neither man mentioned Mr. Trump directly, they discussed the role of social media in leadership, a conversation that brought to mind Mr. Trump’s blunt, unvarnished posts on Twitter.
Mr. Obama warned against the irresponsible use of social media by people in positions of power and expressed his concern about a future in which facts were discarded.
Mr. Obama also mentioned that he had developed a thick skin during his presidency. Mr. Trump, in contrast, has been criticized since the 2016 campaign as thin-skinned and unable to rise above provocation.
During the presidential inauguration on Jan. 20, many people — including Prince Harry — wondered what Mr. Obama was thinking as he sat in the crowd, showing little emotion.
“The first thing that went through my mind was sitting across from Michelle, how thankful I was that she had been my partner through that whole process,” he said in a reflective tone.
Looking back, he said he felt a sense of completion as he handed over power to Mr. Trump. There was a “satisfying feeling that was mixed with all the work that was still undone,” he said, adding that he had “ concerns about how the country moved forward.”
“But over all, there was serenity there,” he said.
Mr. Obama and Prince Harry have a range of shared interests, and since meeting in London last year, they have been discussing ways in which they can work together to provide a platform to empower young people.
“How do we make it a reality?” Prince Harry asked in the interview.
Mr. Obama used his 2008 presidential campaign as an example.
The campaign was fueled by a grass-roots approach that was brought together by new technologies of the time, Mr. Obama added.
Prince Harry’s engagement to the American actress Megan Markle was announced in November, long after the interview was recorded, so it obviously did not come up during the conversation with Mr. Obama.
It did come up as part of Prince Harry’s role as guest editor, however, and there was an Obama angle. British tabloids, citing unidentified sources, reported this week that senior government officials were putting pressure on Prince Harry to leave the Obamas off the guest list, out of fear that a snub would enrage Mr. Trump.
Asked about the issue by a Radio 4 host on Wednesday, Prince Harry sidestepped the question, saying that he and Ms. Markle were yet to work out who would be invited to their wedding, which is set for May 19.