The two men shook hands for about three minutes, putting on their friendliest faces for reporters.
For Xi, the meeting appeared to exceed low expectations.
Pivoting off what the White House considers a successful USA missile strike in Syria, the Trump administration sent a not-so-subtle message Sunday to North Korea: Don't risk being next. North Korea has repeatedly tested nuclear weapons in recent years, a move that the USA strongly opposes. China accounted for nearly 70 percent of last year's $500 billion US trade deficit.
Trump said in an interview with the Financial Times published Sunday that China should help with the problem by using the "great influence" it has over Pyongyang, warning that if it doesn't, the us will solve the problem on its own, and that "won't be good for anyone". The report did not name the official, which is common in KCNA reports.
To underscore this, just before the Xi-Trump summit, North Korea carried out five nuclear arms tests.
Mr. Tillerson said the issue of human rights in China, a potential point of contention between the two leaders, was "embedded" in the discussions of economic and military cooperation.
"Tremendous goodwill and friendship was formed, but only time will tell on trade".
Washington's preoccupation with Syria kept its summit with China to a "get to know each other" level with no embarrassing public squabbles, exactly what President Xi had wished for.
He said the USA was prepared to take its "own course" if China did not do more to rein in the North. He did not elaborate.
The recent summit between Presidents Donald Trump and Xi Jinping was unprecedented in its fashion and noteworthy in several respects. -China relationship and burnishing his foreign policy credentials than achieving a breakthrough.
The Chinese commentaries, however, made no mention of the United States missile strike on a Syrian government air base, which overshadowed the summit.
Trump did not explain what differences had been narrowed between the two countries. He noted the historic responsibility of both countries - the world's largest economies and emerging military rivals - to work toward peace and stability.
President Donald Trump and Chinese President Xi Jinping walk together after their meetings at Mar-a-Lago, Friday, April 7, 2017, in Palm Beach, Fla.
Pressed to clarify, McMaster said the goals of fighting IS and ousting Syria's president were somewhat "simultaneous" and that the objective of the missile strike was to send a "strong political message to Assad".
Although Beijing has condemned the missile tests, it has hesitated to take serious action against Pyongyang, fearing that the country's collapse would generate a flood of refugees across its borders and leave the United States military on its doorstep.
They remarked generally about "progress" in their relationship and optimism about the future.
"At the end of previous year people across the world were concerned about China-US relations", said an editorial in the Chinese-language edition of the Global Times newspaper.
"And I believe lots of very potentially bad problems will be going away", he added, without providing details.
"Well, I agree with you 100 percent", Trump replied. "That's one of the things we are going to be talking about".
Tillerson said Trump had informed his guest of the military intervention towards the end of their dinner on Thursday night, at about 8.40pm local time.
A Foreign Ministry spokesperson in Beijing said "China always opposes the use of force in global affairs" and that the Syrian conflict "should be resolved through political means".
Trump had said he meant to raise concerns about China's trade practices and press Xi to do more to rein in North Korea's missile and nuclear programs during their summit meeting at his Spanish-style Mar-a-Lago resort though no major deals on either issue were expected. Trump's aides insisted he had made good on his pledge to raise concerns about China's trade practices and said there was some headway, with Xi agreeing to a 100-day plan for trade talks aimed at boosting US exports and reducing China's trade surplus with the United States.
Following a second day of bilateral talks, press secretary Sean Spicer said both China and the USA agreed to increase cooperation between the two superpowers to "convince North Korea to peacefully resolve the issue and dismantle its illegal nuclear and missile programs" and to prevent the spread of nuclear weapons in the Korean peninsula.
Xi is also expected to seek assurances that Trump will not interfere in the territorial dispute over the South China Sea or question the "One China" policy by reaching out to Taiwan's leader again, as he did during the transition. He's also criticized China for grabbing jobs that could otherwise go to Americans.