The use skills and best practice of the Iron Flex layout framework in the Java class library
The use skills and best practice of the Iron Flex layout framework in the Java class library
Overview:
Iron Flex is a flexible and powerful Java layout framework to build a user interface.It provides a set of rich layout managers and components that help developers to easily design and manage complex user interfaces.This article will introduce the skills and best practice of the Iron Flex layout framework to help developers better use this powerful tool.
1. Import in Iron Flex library
To start using the Iron Flex layout framework, we need to import the corresponding library files first.You can download and manually download and add jar files to the project's dependence.The following is Maven's dependent coordinates:
<dependency>
<groupId>com.github.albertus82</groupId>
<artifactId>iron-flex</artifactId>
<version>1.0.0</version>
</dependency>
2. Create layout objects
When using the Iron Flex layout framework, the layout object is first to be created.You can create layout objects by instantiated `FlexLayout` classes.For example:
FlexLayout layout = new FlexLayout();
3. Set the direction of layout
Iron Flex layout supports the layout of the level and vertical direction.You can use the `setDirection` method to set the direction of the layout.For example, to create a vertical layout, you can use the following code:
layout.setDirection(FlexDirection.VERTICAL);
4. Set the method of alignment of layout
The layout framework provides the functions of alignment and layout components through the method of `SetjustifyContent` and` SetalignItems.
-`setjustifyCyntent` method is used to set the alignment method of the component on the main axis. The following constant is set:
-` `FlexjustifyConink.flex_Start`: Align close to the starting edge
-` `FlexjustifyConink.flex_end`: Near the end of the edge alignment
-` `FlexjustifyConter.center`: Zhongzhong alignment
-` `FlexjustifyCink.space_between`: the average distribution component, so that the distance between them is equal
-` `FlexjustifyConink.space_around`: Average allocated components, and create an equal space around the component
For example, the following code should be used in the middle of the component:
layout.setJustifyContent(FlexJustifyContent.CENTER);
-`SetalignItems '' method is used to set the alignment method of the component on the cross shaft.
-` `FlexalignItems.flex_start`: Align close to the starting edge
-` `FlexalignItems.flex_end`: Near the end of the edge
-` `FlexalignItems.center`: Zhongzhong alignment
-` `Flexalignitems.baseline`: Alignation of the baseline
-` `FlexalignItems.stretch`: stretch to adapt to the height of the layout framework
For example, the following code should be aligned in the middle of the intersection: the following code can be used:
layout.setAlignItems(FlexAlignItems.CENTER);
5. Add component to layout
Use the `ADD` method to add components to the layout and specify the size of the space occupied by the component.For example:
layout.add(component, 1.0f);
The above code adds the component to the layout, and the proportion of components to occupy the remaining space of the layout.In this example, the component will occupy the entire remaining space.
6. Set the other layout attributes of the component
The Iron Flex layout framework also provides other layout attributes to define the size of the component and the position of other components.
-Ad the width and height of the components with the method of using the `setwidth` and` setheight` methods.
-Afoot the minimum width and minimum height of the component with the method of using the `setminwidth` and` setminheight` methods.
-We using the `setmaxwidth` and` setmaxheight` methods to set the maximum width and height of the component.
-Ad the `setflexgrow` method to set the stretchability of components in the remaining space.
For example, to set the width of the component to 200 pixels, you can use the following code:
component.setWidth("200px");
7. Rendering layout
After completing the layout settings, the layout can be rendered to the user interface by using the layout object.For example:
layout.render();
This will show the configuration layout in the user interface.
Summarize:
This article introduces the skills and best practice of the Iron Flex layout framework.By using Iron Flex, developers can easily build flexible and powerful user interfaces.In order to better use this layout framework, we need to learn how to create layout objects, set the direction of layout, and alignment methods, add components to the layout, and set other layout attributes of components as needed.Finally, we rendered the layout into the user interface.By following these best practices, developers can better use the Iron Flex layout framework function and create exquisite user interfaces that meet various needs.
Hope this article is helpful to your practice!