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Rajab Davudov. What is a Layout ? A type of resource that defines what is drawn on the screen. A type of View class whose primary purpose is to organize.

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Presentation on theme: "Rajab Davudov. What is a Layout ? A type of resource that defines what is drawn on the screen. A type of View class whose primary purpose is to organize."— Presentation transcript:

1 Rajab Davudov

2 What is a Layout ? A type of resource that defines what is drawn on the screen. A type of View class whose primary purpose is to organize other controls.

3 Why a Layout ? More than 300 devices with different – Screen sizes and dimensions – Screen densities – Android versions – OEM skins – Control interfaces

4 Android Layouts LinearLayout RelativeLayout TableLayout FrameLayout AbsoluteLayout …

5 Linear Layout In a linear layout, like the name suggests, all the elements are displayed in a linear fashion(below is an example of the linear layouts), either Horizontally or Vertically and this behavior is set in android:orientation which is an attribute of the node LinearLayout..... OR....

6 Linear Layout

7 Relative Layout In a relative layout every element arranges itself relative to other elements or a parent element. As an example, lets consider the layout defined below. The “Cancel” button is placed relatively, to the right of the “Login” button parallel. Here is the code snippet that achieves the mentioned alignment (Right of Login button parallel)

8 Relative Layout

9 Table Layout Table layouts in Android works in the same way HTML table layouts work. You can divide your layouts into rows and columns. Its very easy to understand. The image below should give you an idea

10 Table Layout

11 Absolute Layout Non-professional and not recommended layout !!!

12 Custom Layout Resource res/ – layout/ – layout-land/ – layout-xlarge-v11/ – layout-xlarge-land-v11/

13 Density Independent Pixels dp or dip

14 Think, Design, Code !!!

15 Rajab Davudov Senior Developer at Azerfon https://market.android.com/developer?pub=RADJAB Market QR Code


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