Download Kivy: Interactive Applications in Python by Roberto Ulloa PDF

By Roberto Ulloa

ISBN-10: 1783281596

ISBN-13: 9781783281596

Mobiles and pills have introduced with them a dramatic switch within the software of purposes. Compatibility has turn into crucial, and this has elevated the type of interplay that clients count on: gestures, multi-touches, animations, and magic pens. Kivy is an open resource Python answer that covers those industry wishes with an easy-to-learn and quick improvement technique. Kivy is starting to be quick and gaining cognizance as a substitute to the tested constructing platforms.

Kivy: Interactive functions in Python fast introduces you to the Kivy improvement technique. you are going to research a few examples of the way to exploit a few of the Kivy parts, in addition to know how to combine and mix them into huge tasks. This e-book serves as a reference advisor and is geared up in the sort of means that when accomplished, you've got already accomplished your first venture.

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Extra info for Kivy: Interactive Applications in Python

Sample text

After this chapter we understand the general ideas and we should be able to use most of the elements available for the GUI design. There is, however, a very important and particular element that we haven't studied yet: the canvas, which mainly allow us to draw vector shapes (such as circles and lines for our project) in the screen. This will be the major topic of the next chapter. info Graphics – The Canvas Any Kivy Widget contains a Canvas object. Be careful with the name because it might be confusing: A Canvas is not the place where we draw.

Info GUI Basics – Building an Interface 160. 161. 162. 163. 164. 165. 166. 167. 168. 169. 3] Here we have added four buttons of different sizes. To understand the rules applied to organize the widgets in the rl-tb (right-to-left and top-to-bottom) orientation (line 156) please refer back to the previous screenshot (Embedding Layouts). Also, you can notice that the padding property (line 157) adds 10 pixels of space between the widgets and the border of the StackLayout. Our Project – comic creator You now have all the necessary concepts to create any interface you want.

AnchorLayout: 134. anchor_x: 'right' 135. anchor_y: 'top' 136. Button: 137. text: 'A1' 138. 5] 139. Button: 140. text: 'A2' 141. 2] In the preceding code, we have specified anchor_x to right and anchor_y to top (line 134 and 135). You can notice in the previous screenshot (Embedding Layouts) how both the buttons (lines 136 and 139) of AnchorLayout have been placed in the top-right corner. This layout is very useful to embed other layouts inside it, for example top menu bars or side bars. In the fragment 4, a BoxLayout is added as shown in the following code: 143.

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