APP developers need to know about the nine major iOS 7 Changes

■ Flat design: this is also the most distinctive feature of the new operating system, such as border changes, thinner and harder lines.

■ Font: the tiny and skinny font-Helvetica Neue UltraLight, which is also the font used to publish the venue poster at WWDC.

■ Graph: A significantly changed graph has no borders and can be adjusted based on the screen size of the device.

■ Color: iOS 7 is more colorful, including blue, red, white, and black... .

■ Border: All icon buttons have to be replaced, because the icons of the new operating system do not have borders or shadows.

■ Hierarchy: developers may think this is more interesting. The new user interface allows multiple layers to be displayed on the same screen. developers can use a translucent design, in this regard, I will spend more time thinking.

■ Translucent: the drop-down notification center and the newly added control center are displayed in a translucent manner.

■ Gesture operation: iOS 7 considers enterprise application development and adds navigation options, such as swiping the screen edge to return to the recently opened application, you can also easily switch between Safari pages.

■ Status bar position and menu: the interface has different designs according to different functions such as menu, control center, navigation, and status bar position.