Interface programming is an important aspect in Android application development, which involves the design, interaction and display of the view interface. Views are all UI components that are displayed in an application, such as buttons, labels, menus, etc. The view component is the basic unit that constitutes the view, and the container component is the container used to organize the view components.
Commonly used view components include:
1. TextView and its subclasses: used to display text content, including TextView, EditText, Button, etc.
2. ImageView and its subclasses: used to display image content, including ImageView, ImageButton, etc.
3. AdapterView and its subclasses: commonly used list view components, including ListView, GridView, Spinner, etc.
Container components are used to organize and arrange view components. Commonly used container components include:
1. LinearLayout: A linear container that arranges subviews horizontally or vertically.
2. TableLayout: Table container, which arranges subviews in the form of a table.
3. FrameLayout: frame container, which can be used to place multiple views, and only one of them will be displayed when displayed.
4. RelativeLayout: Relative container, which can be used to represent the relative positional relationship between views.
5. GridLayout: A grid container that can be used to arrange subviews in a grid.
6. ConstraintLayout: Constraint container, which can be used to define the constraint relationship between views, with strong flexibility.
In the Android system, there are some commonly used basic UI components, such as:
1. TextView and its subclasses: used to display text content, support various styles and formats, such as text color, font, alignment, etc.
2. ImageView and its subclasses: used to display image content, support various image formats and loading methods, such as local files, network images, etc.
3. AdapterView and its subclasses: commonly used list view components that support data binding and interactive operations, such as ListView, GridView, etc.
4. Adapter interface and its implementation class: interface components used for data binding, which can bind data and view components, such as ArrayAdapter, BaseAdapter, etc.
Using these basic UI components and their combinations, Android developers can quickly build high-quality view interfaces and provide users with a good experience.