Characteristics of absolutelayout layout

Absolutelayout layout features: 1. Use absolute positioning to layout controls; 2. Can accurately control the position and size of controls; 3. No ability to automatically adapt to the screen; 4. Unable to adapt to different screens and resolution of the device; 5. Due to the characteristics of absolute positioning, developers need to manually calculate the position of the control when using the AbsoluteLayout layout method.

AbsoluteLayout layout is a layout method in Android. Its characteristics are as follows:

Absolute positioning: AbsoluteLayout layout The method uses absolute positioning to layout controls, that is, the position of the control is determined by specifying the coordinates of the upper left corner, rather than the relative position between controls.

Precise control: Due to the characteristics of absolute positioning, the AbsoluteLayout layout method can precisely control the position and size of the control. Developers can specify the upper left corner coordinates, width and height of the control to achieve precise layout effects.

No adaptability: AbsoluteLayout layout method does not have the ability to automatically adapt to the screen. The position and size of the controls are fixed and will not adjust automatically regardless of changes in screen size and resolution. Therefore, when using the AbsoluteLayout layout method, special attention needs to be paid to adapting to screens of different sizes.

Not recommended: Because the AbsoluteLayout layout method cannot adapt to screens and devices with different resolutions, and cannot adapt to different screen rotations, the use of AbsoluteLayout layout method is not officially recommended. In Android 8.0 and above, AbsoluteLayout has been deprecated, and developers should use other more flexible and adaptable layout methods, such as LinearLayout, RelativeLayout, or ConstraintLayout.

Developers need to calculate the position by themselves: Due to the characteristics of absolute positioning, when using the AbsoluteLayout layout method, developers need to manually calculate the position of the control. This can be tedious and error-prone for interfaces with complex layouts.

Summary

AbsoluteLayout layout method is very flexible in controlling the position and size of controls and can achieve precise layout effects. However, due to its inability to adapt to screens and devices with different resolutions, and the fact that it is not recommended, developers should try to avoid using the AbsoluteLayout layout method in actual development and choose other more flexible and adaptable layout methods.

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