In the previous section, we discussed how, through Stack and Positioned, we can specify one or more child elements' precise offsets relative to the edges of their parent element, allowing them to ···
Layered layout is similar to absolute positioning in the Web or Frame layout in Android, where child components can position themselves based on their distance from the four corners of the parent cont···
When introducing Row and Column, if a child widget exceeds the screen bounds, an overflow error will occur, as shown below:Row( children: <Widget>[ Text("xxx" * 100), ],); The result i···
A flexible layout allows child components to allocate the parent container's space according to certain proportions. The concept of flexible layout exists in other UI systems as well, such as the ···
The so-called linear layout refers to arranging child components either horizontally or vertically. In Flutter, linear layouts are implemented using Row and Column, similar to the LinearLayout control···
Size-limiting containers are used to restrict the size of a container. Flutter provides several such containers, including ConstrainedBox, SizedBox, UnconstrainedBox, AspectRatio, etc. This section wi···
Layout widgets typically contain one or more child widgets, and different layout widgets arrange (or layout) their child widgets in various ways, as shown in Table 4-1 below:WidgetDescriptionUsageLeaf···
The Material component library provides two types of progress indicators: LinearProgressIndicator and CircularProgressIndicator. Both can be used to indicate either a precise progress or an indetermin···
The Material component library provides the TextField input box component and the Form component. Let's introduce them one by one.20.1 TextFieldThe TextField is used for text input and offers many···
3.4.1 IntroductionThe Material component library provides Material-styled switches (Switch) and checkboxes (Checkbox). Although both inherit from StatefulWidget, they do not maintain their selected st···
3.3.1 ImagesIn Flutter, we can use the Image widget to load and display images. The image source can be from assets, files, memory, or the internet.1. ImageProviderImageProvider is an abstract class t···
The Material component library provides various button components such as ElevatedButton, TextButton, OutlinedButton, and others. All of these buttons are either directly or indirectly custom wrappers···
16.1 TextThe Text widget is used to display simple styled text. It contains several properties for controlling the appearance of the text. Here’s a simple example:Text("Helloworld",textAlig···
Network Redirection Scenarios and Solutions in HarmonyOSScenario DescriptionWhen developing applications, you may encounter automatic redirection on pages, where some actions need to be performed base···
Deep learning is a machine learning method that allows us to train artificial intelligence (AI) to predict outputs given a set of inputs (i.e., information fed into or out of a computer). AI can be tr···
Memory is the primary storage of a computer. It allocates process space for storing data during process execution. This article will delve into the details of memory management, particularly the conce···
