Ten innovations in design specifications of Android4.0

After replying and translating the Android design guide, compare Android 4.0. The 4.1,4.4 version number and the app design guidelines for Android2.3 and previous versions summarize the 10 major changes in the design specification after the Android 4.0 version number. I would also like to thank Bo friends for my support of the article, the previous important design concept series of article reading volume has been soaring recently. Also encouraged me to continue writing this series of articles.

First, navigation bar

The previous physical key navigation (return, menu, search, home page) becomes the virtual key (return, home page, recent task) of the embedded screen.

Remove the menu items and search items from the navigation bar and display the previously opened program app directly in the navigation bar by pressing the home key.

Second, the Action Bar

The action Bar is the most important structural element in Android apps. It provides a consistent navigation platform surface for user application behavior. In simple terms. No matter what interface the user opens in the operation of your application, it will be able to complete the same functions provided by the previous interface through the action bar.

To suit most applications, the action bar is divided into four different functional areas.

(1) Application icon

This is not much of a sign that shows our different applications.

(2) View Control

Assuming that our application can display data in different views, this section of the Action Bar agrees that the user switches views/

(3) Action button

The ability to show the most important features of our application here button

(4) Many other operations

Click to pop up some infrequently used actions or about some system settings

The action bar can also be split into 1 main action bars, 2 top bars, and 3 bottom bars. Assumptions required. The top bar is capable of hosting tab tabs, and the bottom bar is capable of hosting major operations and many other actions (action overflow) that are closed.

When there is enough space on the landscape screen to display the interface. The split action bar can be combined flexibly.

For example, in the mobile phone end of the screen operation Bar to see.

Three, multi-panel layout

Multi-panel layout is mainly for the development of the tablet, that is, using the fragment fragement, I also introduced in the previous blog post a lot about how to use the fragement layout of the operation of the introduction. Composite display in the same interface, the efficient use of tablet computer screen space, flat hierarchy. Simplifies navigation.

Iv. selection

The long-press gesture in the past version number is used to display contextual action actions, which are used for data selection after android4.0. After the Android4.0. Long press the position in the action Bar will overwrite a temporary context action bar, no longer popup context menu surfaced. In the context of the temporary context Action bar, the content item of the current interface is agreed to be handled individually. Also agreed to be processed in batches.

In the new version

(1) The user can select additional data by touching it.

(2) When the promotion of a temporary situation action bar, the selected data will be highlighted, the temporary action Bar will be self-inference to disappear.

(3) Can cancel the selection operation by the fallback button of the action Bar.

The four major innovations about android4.0 are as seen above, I will continue to write android4.1 and 4.4 version number update, please look forward to all of you. Thank you, Bo friends for their support.

Ten innovations in design specifications of Android4.0