[Android SDK] Android document read the new version

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Since the choice to learn Android 4.1 this version, the best way is to read the SDK document, the first thing to do is to understand what must be android4 than other bovine place. Below are the Youdao dictionary in the SDK document where every single word or phrase translated, ha ha! Really not easy, don't do it, or directly read.!


This article is a direct translation of official document, any similarity, honoured!

JellyBean - Android 4.1



Notice Notifications

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Enhanced significantly in Android 4.1 Notification function:
Users can directly operate the notification
Notice the size and more flexible in layout
Notice the importance is given a priority flag to identify the notice
The notification can be enlarged or reduced
Notice of the default layout remain intact, so the application for Android 4.1 previously designed, notice is still valid


To resize the window controls ResizableApplication Widgets

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Android4.1 introduced can automatically adjust the size of window controls, the window size depends on the:
The user controls the position
The user directly drag the window size
Desktop available control
When the user rotates the device, you can also provide two sets of horizontal, vertical layout. The control system provides control information, limit and design considerations for specific.


The availability of Accessibility

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Google's one of the design concept is: to organize the world's information, so that all people can access and benefit from it. That is to say, the application should be able to take care of all kinds of users, such as the fingers are not convenient, hearing impaired, anomalous trichromatism achromatopsia, even people with visual impairments. The following several delicate method can ensure that your App has the largest audience:
Make the navigation more intuitive
Use the recommended touchscreen button size
Use meaningful icons
There is a time limit of the operation to take account of the special crowd
Using standard framework controls or enable custom control TalkBack function
Try it



IceCream Sandwich - Android 4.0


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The navigation bar Navigation bar

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There is no physical buttons of the new Android 4 mobile phone.,
Replace sb. is the virtual navigation bar, a return, the main screen and the recent application of these three buttons placed
The action bar Action bar


Action bar is the most important element for Android application.
It unified the entire platform browsing, and can be used to put your application in the operation button

Multi view layout Multi-pane layouts

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In the Android world, for different screen ruler and proportion design your application is very important.
By using multiple view layout Fragemnt multiple Activity can be combined in a handheld device in the same interface, more vivid display in a flat screen

Select Selection

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Before long, the gesture used out of context menu, now mostly used to select. Choose the data, display the available operating in the "contextual action bar"
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Posted by Kennedy at December 16, 2013 - 10:42 PM