How does IPhone send SMS in echo mode?

1. First, we open the short message and enter the object to be sent.

2. Enter our copy, and then press and hold the green send button on the right.

3. After that, we can click on the screen and select the echo effect to view our screen effects.

4. After selection, we can send the case by clicking the green on the right. There will be a full-screen special effect display after it is sent out.

Extended data:

1, IPhone is a series of smart phones developed by Apple in the United States, which is equipped with the IOS operating system developed by Apple.

2. In 2004, Apple convened more than 1000 internal employees to form an IPhone R&D team, and launched a highly confidential project called "Project Purple", among which Jonathan Ive, the behind-the-scenes designer of iPhone, was one. At that time, Steve Jobs, CEO of Apple, shifted his focus from tablet computers such as IPad to mobile phones. Apple and AT & amp； T secretly cooperated to create some software and hardware devices-Cingular wireless network at that time-AT&; T also gave Apple investment and great freedom, spending about $65.438+0.5 billion in 30 months. In exchange, Apple promised that the IPhone sold in the United States would be handed over to AT & amp； T exclusive sales.

3. Apple started the development plan of IPhone with the development code of "Purple 2". At that time, Nintendo's NDS was popular all over the world, and the design elements such as multi-touch of iPhone were obviously affected.

(Source: Baidu Encyclopedia: IPhone)