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ViewGroup

declare class ViewGroup extends View implements ViewParent {}

A is a special view that can contain other views (called children.) The view group is the base class for layouts and views containers. This class also defines the class which serves as the base class for layouts parameters. ViewGroup ViewGroup.LayoutParams

Also see for layout attributes. LayoutParams

Attribute​

clipToPadding​

<FrameLayout clipToPadding="true">
  <View layout_width="30px" 
        layout_height="30px" 
        background="#000000" />
</FrameLayout>

  • Description​

    Defines whether the ViewGroup will clip its children and resize (but not clip) any EdgeEffect to its padding, if padding is not zero. This property is set to true by default.
    May be a boolean value, such as "true" or "false".

clipChildren​

<FrameLayout clipChildren="true">
    <View layout_width="30px" 
          layout_height="30px" 
          background="#000000" />
</FrameLayout>

  • Description​

    Defines whether a child is limited to draw inside of its bounds or not. This is useful with animations that scale the size of the children to more than 100% for instance. In such a case, this property should be set to false to allow the children to draw outside of their bounds. The default value of this property is true.
    May be a boolean value, such as "true" or "false".

Static Method​

getChildMeasureSpec​

declare class ViewGroup {
    getChildMeasureSpec(spec: number, padding: number, childDimension: number): number
}

  • Description​

    Does the hard part of measureChildren: figuring out the MeasureSpec to pass to a particular child.

Instance Method​

constructor​

declare class ViewGroup {
    constructor(context: Context, attr: AttributeSet);
}

  • Description​

    Create a new viewGroup.

removeView​

declare class ViewGroup {
    removeView(view: View): void;
}

  • Description​

    Removes the view
    note: do not invoke this method from or any related method. View.draw(Canvas) View.onDraw(Canvas)

removeAllViews​

declare class ViewGroup {
    removeAllViews(): void;
}

  • Description​

    Call this method to remove all child views from the ViewGroup.

removeViewAt​

declare class ViewGroup {
    removeViewAt(index: number): void;
}

  • Description​

    Removes the view at the specified position in the group.
    note: do not invoke this method from or any related method. View.draw(Canvas) View.onDraw(Canvas)

indexOfChild​

declare class ViewGroup {
    indexOfChild(child: View): number;
}

  • Description​

    Returns the position in the group of the specified child view.

addView​

declare class ViewGroup {
    addView(child: View): View;
    addView(child: View, index: number): View;
}

  • Description​

    Adds a child view. If no layout parameters are already set on the child, the default parameters for this ViewGroup are set on the child.

addView​

declare class ViewGroup {
    addView(child: View, index: number, params: ViewGroup.LayoutParams): View
}

  • Description​

    Adds a child view with the specified layout parameters.

generateLayoutParams​

declare class ViewGroup {
    generateLayoutParams(attribute: AttributeSet): ViewGroup.LayoutParams
}

  • Description​

    Returns a new set of layout parameters based on the supplied attributes set.

generateLayoutParams​

declare class ViewGroup {
    generateLayoutParams(params: ViewGroup.LayoutParams): ViewGroup.LayoutParams
}

  • Description​

    Returns a safe set of layout parameters based on the supplied layout params.

getParent​

declare class ViewGroup {
    getParent(): ViewParent
}

  • Description​

    Get Parent view.

getChildCount​

declare class ViewGroup {
    getChildCount(): number;
}

  • Description​

    Returns the number of children in the group.

getChildDrawingOrder​

declare class ViewGroup {
    getChildDrawingOrder(childCount: number, i: number): number;
}

  • Description​

    Converts drawing order position to container position.

getChildAt​

declare class ViewGroup {
    getChildAt(index: number): View
}

  • Description​

    Returns the view at the specified position in the group.

getClipToPadding​

declare class ViewGroup {
    getClipToPadding():boolean
}

  • Description​

    Returns whether this ViewGroup will clip its children to its padding, and resize (but not clip) any EdgeEffect to the padded region, if padding is present.

setClipChildren​

declare class ViewGroup {
    setClipChildren(clipChildren: boolean): void
}

  • Description​

    By default, children are clipped to their bounds before drawing.

setClipToPadding​

declare class ViewGroup {
    setClipToPadding(clipToPadding: boolean): void
}

  • Description​

    Sets whether this ViewGroup will clip its children to its padding and resize (but not clip) any EdgeEffect to the padded region, if padding is present.

setChildrenDrawingOrderEnabled​

declare class ViewGroup {
    setChildrenDrawingOrderEnabled(enabled: boolean): void;
}

  • Description​

    Tells the ViewGroup whether to draw its children in the order defined by the method getChildDrawingOrder(number, number).

ViewGroup.LayoutParams​

LayoutParams are used by views to tell their parents how they want to be laid out.

There are subclasses of LayoutParams for different subclasses of ViewGroup. For example, AbsoluteLayout has its own subclass of LayoutParams which adds an X and Y value.

declare class LayoutParams {}

Attribute​

layout_width​

  • Type pixel wrap_content match_parent​

  • Example​

<FrameLayout>
  <View layout_width="10px" />
</FrameLayout>

  • Description​

    Specifies the basic width of the view.

layout_height​

  • Type pixel wrap_content match_parent​

  • Example​

<FrameLayout>
  <View layout_height="10px" />
</FrameLayout>

  • Description​

    Specifies the basic height of the view.

Static Property​

MATCH_PARENT​

declare class View {
    static MATCH_PARENT: number;
}

  • Description​

    Special value for the height or width requested by a View. MATCH_PARENT means that the view wants to be as big as its parent, minus the parent's padding, if any.

WRAP_CONTENT​

declare class View {
    static WRAP_CONTENT: number;
}

  • Description​

    Special value for the height or width requested by a View. WRAP_CONTENT means that the view wants to be just large enough to fit its own internal content, taking its own padding into account.

Instance Method​

getWidth​

declare interface LayoutParams {
    getWidth(): number
}

  • Description​

    Get Specifies the basic width of the view.

getHeight​

declare interface LayoutParams {
    getHeight(): number
}

  • Description​

    Get Specifies the basic height of the view.

setWidth​

declare interface LayoutParams {
    setWidth(width: number): void
}

  • Description​

    Set Specifies the basic width of the view.

setHeight​

declare interface LayoutParams {
    setHeight(height: number): void
}

  • Description​

    Set Specifies the basic height of the view.

ViewGroup.MarginLayoutParams​

declare class MarginLayoutParams extends LayoutParams {}

Per-child layout information for layouts that support margins.

Attribute​

layout_margin​

<FrameLayout>
  <View layout_margin="10px" />
</FrameLayout>

  • Description​

    Specifies extra space on the left, top, right and bottom sides of this view.

layout_marginTop​

<FrameLayout>
  <View layout_marginTop="10px" />
</FrameLayout>

  • Description​

    Specifies extra space on the top side of this view.

layout_marginLeft​

<FrameLayout>
  <View layout_marginLeft="10px" />
</FrameLayout>

  • Description​

    Specifies extra space on the left side of this view.

layout_marginRight​

<FrameLayout>
  <View layout_marginRight="10px" />
</FrameLayout>

  • Description​

    Specifies extra space on the right side of this view.

layout_marginBottom​

<FrameLayout>
  <View layout_marginBottom="10px" />
</FrameLayout>

  • Description​

    Specifies extra space on the bottom side of this view.

Instance Method​

setLeftMargin​

declare class MarginLayoutParams {
    setLeftMargin(left: number): number;
}

  • Description​

    Set Specifies the basic left margin of the view.

setTopMargin​

declare class MarginLayoutParams {
    setTopMargin(top: number): number;
}

  • Description​

    Set Specifies the basic top margin of the view.

setRightMargin​

declare class MarginLayoutParams {
    setRightMargin(right: number): void;
}

  • Description​

    Set Specifies the basic right margin of the view.

setBottomMargin​

declare class MarginLayoutParams {
    setBottomMargin(bottom: number): void;
}

  • Description​

    Set Specifies the basic bottom margin of the view.

setMargins​

declare class MarginLayoutParams {
    setMargins(left: number, top: number, right: number, bottom: number): number;
}

  • Description​

    Set Specifies the basic all margin of the view.

getLeftMargin​

declare class MarginLayoutParams {
    getLeftMargin(): number;
}

  • Description​

    Get Specifies the basic left margin of the view.

getTopMargin​

declare class MarginLayoutParams {
    getTopMargin(): number;
}

  • Description​

    Get Specifies the basic top margin of the view.

getRightMargin​

declare class MarginLayoutParams {
    getRightMargin(): number
}

  • Description​

    Get Specifies the basic right margin of the view.

getBottomMargin​

declare class MarginLayoutParams {
    getBottomMargin(): number;
}

  • Description​

    Get Specifies the basic bottom margin of the view.