The Economist is claiming that the decade-long honeymoon between China and Africa, a honeymoon that has played a major role in Africa's economic growth, which is the fastest economic growth in the world (six of the world's 10 fastest-growing economies in the previous decade were in black Africa), is over:

...African attitudes have changed. His partners say he is ripping them off. Chinese goods are held up as examples of shoddy work. Politics has crept into encounters. The word “colonial” is bandied about. Children jeer and their parents whisper about street dogs disappearing into cooking pots.

Indeed, in Zimbabwe there's even a word for cheap Chinese products: Zhing-zhong. Wikipedia:

The word made its appearance at the onset of Chinese penetration in to the Zimbabwean economy at the turn of the 21st Century. It stems from the way the Chinese language sounds to a Zimbabwean hearing it for the first time, and from the names of the Chinese manufacturers on the labels of many cheap, low-quality products. Zhing-Zhong now also means anything that is low-quality, even a person unfit for their occupation or station in life can be described as "zhing-zhong".

As for the dog thing, that has been around from the very beginning. In the mid 80s, when the Chinese were building a sports stadium in Harare, there was a burst of hysteria about missing dogs. Dogs go missing all of the time, but because the Chinese construction workers happened to be in town, all missing dogs became eaten dogs. Africans, like Europeans, are not impressed with the practice of "woking a dog." Nevertheless, black Africa has passed its American moment (1959 to 89) and fully entered its Chinese moment.