程序包 ohos.agp.components

类 LayoutScatter

java.lang.Object

ohos.agp.components.LayoutScatter

public class LayoutScatter
extends Object

Provides component conversion tool.

You can use the tool to define a component in an XML file, and then call the parse(int, ohos.agp.components.ComponentContainer, boolean) method to generate a Component object using this file.

从以下版本开始:

1

嵌套类概要

嵌套类

限定符和类型	类	说明
static interface	LayoutScatter.Picker	Provides a method for checking whether a component can be loaded.

方法概要

限定符和类型	方法	说明
LayoutScatter	clone(Context context, ResourceManager resourceManager)	Clones a LayoutScatter object.
Component	createComponentElement(String fullClassName, AttrSet attrSet)	Instantiates a component based on the fully qualified class name of the component.
static LayoutScatter	getInstance(Context context)	Obtains a LayoutScatter object based on the context.
LayoutScatter.Picker	getPicker()	Obtains the component picker.
Component	parse(int xmlId, ComponentContainer root, boolean attachToRoot)	Converts an XML file to a component.
void	setPicker(LayoutScatter.Picker picker)	Sets a new component picker to replace the existing one.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

getInstance

public static LayoutScatter getInstance(Context context)

Obtains a LayoutScatter object based on the context.

参数:

context - Indicates the application context.

返回:

Returns the LayoutScatter object used to convert an XML file to a component.

从以下版本开始:

2

clone

public LayoutScatter clone(Context context,
                           ResourceManager resourceManager)

Clones a LayoutScatter object.

The new LayoutScatter object is cloned using the transferred Context and ResourceManager objects.

参数:

context - Indicates the Context object of the application.

resourceManager - Indicates the ResourceManager object of the application.

返回:

Returns the LayoutScatter object.

从以下版本开始:

2

parse

public Component parse(int xmlId,
                       ComponentContainer root,
                       boolean attachToRoot)

Converts an XML file to a component.

After converting an XML file to a component, you can add the new component to a root component, in which case, the root component is returned. Otherwise, the created component is returned.

参数:

xmlId - Indicates the XML file ID.

root - Indicates the root component.

attachToRoot - Indicates whether to add to a root component.

返回:

Returns the component converted from the XML file, which can be either the component itself or a root component (if the component is added to a root component).

getPicker

public LayoutScatter.Picker getPicker()

Obtains the component picker.

返回:

Returns the current component picker.

从以下版本开始:

4

setPicker

public void setPicker(LayoutScatter.Picker picker)

Sets a new component picker to replace the existing one.

参数:

picker - Indicates the new component picker to set.

从以下版本开始:

4

createComponentElement

public Component createComponentElement(String fullClassName,
                                        AttrSet attrSet)

Instantiates a component based on the fully qualified class name of the component.

参数:

fullClassName - Indicates the fully qualified class name of the component to be instantiated.

attrSet - Indicates the XML attribute set provided by this instance.

返回:

Returns the newly instantiated component.

从以下版本开始:

4