Package icyllis.modernui.widget

Class RelativeLayout

java.lang.Object

icyllis.modernui.view.View

icyllis.modernui.view.ViewGroup

icyllis.modernui.widget.RelativeLayout

All Implemented Interfaces:

Drawable.Callback, ViewManager, ViewParent

Direct Known Subclasses:

RelativeRadioGroup

public class RelativeLayout
extends ViewGroup

A Layout where the positions of the children can be described in relation to each other or to the parent.

Note that you cannot have a circular dependency between the size of the RelativeLayout and the position of its children. For example, you cannot have a RelativeLayout whose height is set to WRAP_CONTENT and a child set to ALIGN_PARENT_BOTTOM.

Also see RelativeLayout.LayoutParams for layout attributes

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RelativeLayout.LayoutParams	Specifies how a view is positioned within a RelativeLayout.

Nested classes/interfaces inherited from class icyllis.modernui.view.ViewGroup

ViewGroup.MarginLayoutParams

Nested classes/interfaces inherited from class icyllis.modernui.view.View

View.DragShadow, View.Focusable, View.FocusableMode, View.FocusDirection, View.FocusRealDirection, View.LayoutDir, View.NestedScrollType, View.OnAttachStateChangeListener, View.OnClickListener, View.OnContextClickListener, View.OnCreateContextMenuListener, View.OnDragListener, View.OnFocusChangeListener, View.OnGenericMotionListener, View.OnHoverListener, View.OnKeyListener, View.OnLayoutChangeListener, View.OnLongClickListener, View.OnScrollChangeListener, View.OnTouchListener, View.ResolvedLayoutDir, View.ScrollAxis, View.ScrollBarStyle, View.ScrollIndicators, View.TextAlignment, View.Visibility

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ABOVE	Rule that aligns a child's bottom edge with another child's top edge.
static final int	ALIGN_BASELINE	Rule that aligns a child's baseline with another child's baseline.
static final int	ALIGN_BOTTOM	Rule that aligns a child's bottom edge with another child's bottom edge.
static final int	ALIGN_END	Rule that aligns a child's end edge with another child's end edge.
static final int	ALIGN_LEFT	Rule that aligns a child's left edge with another child's left edge.
static final int	ALIGN_PARENT_BOTTOM	Rule that aligns the child's bottom edge with its RelativeLayout parent's bottom edge.
static final int	ALIGN_PARENT_END	Rule that aligns the child's end edge with its RelativeLayout parent's end edge.
static final int	ALIGN_PARENT_LEFT	Rule that aligns the child's left edge with its RelativeLayout parent's left edge.
static final int	ALIGN_PARENT_RIGHT	Rule that aligns the child's right edge with its RelativeLayout parent's right edge.
static final int	ALIGN_PARENT_START	Rule that aligns the child's start edge with its RelativeLayout parent's start edge.
static final int	ALIGN_PARENT_TOP	Rule that aligns the child's top edge with its RelativeLayout parent's top edge.
static final int	ALIGN_RIGHT	Rule that aligns a child's right edge with another child's right edge.
static final int	ALIGN_START	Rule that aligns a child's start edge with another child's start edge.
static final int	ALIGN_TOP	Rule that aligns a child's top edge with another child's top edge.
static final int	BELOW	Rule that aligns a child's top edge with another child's bottom edge.
static final int	CENTER_HORIZONTAL	Rule that centers the child horizontally with respect to the bounds of its RelativeLayout parent.
static final int	CENTER_IN_PARENT	Rule that centers the child with respect to the bounds of its RelativeLayout parent.
static final int	CENTER_VERTICAL	Rule that centers the child vertically with respect to the bounds of its RelativeLayout parent.
static final int	END_OF	Rule that aligns a child's start edge with another child's end edge.
static final int	LEFT_OF	Rule that aligns a child's right edge with another child's left edge.
static final int	RIGHT_OF	Rule that aligns a child's left edge with another child's right edge.
static final int	START_OF	Rule that aligns a child's end edge with another child's start edge.
static final int	TRUE

Fields inherited from class icyllis.modernui.view.ViewGroup

CLIP_TO_PADDING_MASK, FLAG_DISALLOW_INTERCEPT, FOCUS_AFTER_DESCENDANTS, FOCUS_BEFORE_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS

Fields inherited from class icyllis.modernui.view.View

ALPHA, BOTTOM, EMPTY_STATE_SET, ENABLED_FOCUSED_SELECTED_STATE_SET, ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, ENABLED_FOCUSED_STATE_SET, ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET, ENABLED_SELECTED_STATE_SET, ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET, ENABLED_STATE_SET, ENABLED_WINDOW_FOCUSED_STATE_SET, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, FOCUSABLE, FOCUSABLE_AUTO, FOCUSABLES_ALL, FOCUSABLES_TOUCH_MODE, FOCUSED_SELECTED_STATE_SET, FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, FOCUSED_STATE_SET, FOCUSED_WINDOW_FOCUSED_STATE_SET, GONE, HAPTIC_FEEDBACK_ENABLED, INVISIBLE, LAYOUT_DIRECTION_INHERIT, LAYOUT_DIRECTION_LOCALE, LAYOUT_DIRECTION_LTR, LAYOUT_DIRECTION_RTL, LAYOUT_DIRECTION_UNDEFINED, LEFT, MEASURED_HEIGHT_STATE_SHIFT, MEASURED_SIZE_MASK, MEASURED_STATE_MASK, MEASURED_STATE_TOO_SMALL, mPaddingBottom, mPaddingLeft, mPaddingRight, mPaddingTop, mScrollX, mScrollY, NO_ID, NOT_FOCUSABLE, OVER_SCROLL_ALWAYS, OVER_SCROLL_IF_CONTENT_SCROLLS, OVER_SCROLL_NEVER, PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET, PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_FOCUSED_STATE_SET, PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_SELECTED_STATE_SET, PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_ENABLED_STATE_SET, PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET, PRESSED_FOCUSED_SELECTED_STATE_SET, PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_FOCUSED_STATE_SET, PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET, PRESSED_SELECTED_STATE_SET, PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET, PRESSED_STATE_SET, PRESSED_WINDOW_FOCUSED_STATE_SET, RIGHT, ROTATION, ROTATION_X, ROTATION_Y, SCALE_X, SCALE_Y, SCROLL_AXIS_HORIZONTAL, SCROLL_AXIS_NONE, SCROLL_AXIS_VERTICAL, SCROLL_INDICATOR_BOTTOM, SCROLL_INDICATOR_END, SCROLL_INDICATOR_LEFT, SCROLL_INDICATOR_RIGHT, SCROLL_INDICATOR_START, SCROLL_INDICATOR_TOP, SCROLL_X, SCROLL_Y, SCROLLBARS_INSIDE_INSET, SCROLLBARS_INSIDE_OVERLAY, SCROLLBARS_OUTSIDE_INSET, SCROLLBARS_OUTSIDE_OVERLAY, SELECTED_STATE_SET, SELECTED_WINDOW_FOCUSED_STATE_SET, SOUND_EFFECTS_ENABLED, TEXT_ALIGNMENT_CENTER, TEXT_ALIGNMENT_GRAVITY, TEXT_ALIGNMENT_INHERIT, TEXT_ALIGNMENT_TEXT_END, TEXT_ALIGNMENT_TEXT_START, TEXT_ALIGNMENT_VIEW_END, TEXT_ALIGNMENT_VIEW_START, TEXT_DIRECTION_ANY_RTL, TEXT_DIRECTION_FIRST_STRONG, TEXT_DIRECTION_FIRST_STRONG_LTR, TEXT_DIRECTION_FIRST_STRONG_RTL, TEXT_DIRECTION_INHERIT, TEXT_DIRECTION_LOCALE, TEXT_DIRECTION_LTR, TEXT_DIRECTION_RTL, TOP, TRANSLATION_X, TRANSLATION_Y, TRANSLATION_Z, TYPE_NON_TOUCH, TYPE_TOUCH, VIEW_MARKER, VISIBLE, WINDOW_FOCUSED_STATE_SET, X, Y, Z

Constructor Summary

Constructors

Constructor	Description
RelativeLayout(Context context)

Method Summary

Modifier and Type	Method	Description
protected boolean	checkLayoutParams(ViewGroup.LayoutParams p)	Check whether given params fit to this view group.
protected ViewGroup.LayoutParams	generateDefaultLayoutParams()	Returns a set of default layout parameters.
protected ViewGroup.LayoutParams	generateLayoutParams(ViewGroup.LayoutParams lp)	Returns a safe set of layout parameters based on the supplied layout params.
int	getBaseline()	Return the offset of the widget's text baseline from the widget's top boundary.
int	getGravity()	Describes how the child views are positioned.
int	getIgnoreGravity()	Get the id of the View to be ignored by gravity
protected void	onLayout(boolean changed, int left, int top, int right, int bottom)	Called from View.layout(int, int, int, int) when this view should assign a size and position to each of its children.
protected void	onMeasure(int widthMeasureSpec, int heightMeasureSpec)	Measure the view and its content to determine the measured width and the measured height.
void	requestLayout()	Call this when something has changed which has invalidated the layout of this view.
void	setGravity(int gravity)	Describes how the child views are positioned.
void	setHorizontalGravity(int horizontalGravity)
void	setIgnoreGravity(int viewId)	Defines which View is ignored when the gravity is applied.
void	setVerticalGravity(int verticalGravity)
boolean	shouldDelayChildPressedState()	Return true if the pressed state should be delayed for children or descendants of this ViewGroup.

Methods inherited from class icyllis.modernui.view.ViewGroup

addFocusables, addKeyboardNavigationClusters, addStatesFromChildren, addTouchables, addTransientView, addView, addView, addView, addView, addView, addViewInLayout, addViewInLayout, attachViewToParent, bringChildToFront, childDrawableStateChanged, childHasTransientStateChanged, cleanupLayoutState, clearChildFocus, clearDisappearingChildren, clearFocus, detachAllViewsFromParent, detachViewFromParent, detachViewFromParent, detachViewsFromParent, dispatchDraw, dispatchDrawableHotspotChanged, dispatchFinishTemporaryDetach, dispatchGenericPointerEvent, dispatchHoverEvent, dispatchKeyEvent, dispatchKeyShortcutEvent, dispatchSetActivated, dispatchSetPressed, dispatchSetSelected, dispatchStartTemporaryDetach, dispatchTouchEvent, dispatchVisibilityChanged, dispatchWindowFocusChanged, dispatchWindowVisibilityChanged, drawableStateChanged, drawChild, endViewTransition, findFocus, findViewByPredicateTraversal, findViewTraversal, focusableViewAvailable, focusSearch, getChildAt, getChildCount, getChildDrawingOrder, getChildDrawingOrder, getChildMeasureSpec, getChildVisibleRect, getChildVisibleRect, getClipChildren, getClipToPadding, getDescendantFocusability, getFocusedChild, getLayoutTransition, getNestedScrollAxes, getTouchscreenBlocksFocus, getTransientView, getTransientViewCount, getTransientViewIndex, hasBooleanFlag, hasFocus, hasTransientState, indexOfChild, internalSetPadding, isChildrenDrawingOrderEnabled, isLayoutSuppressed, isTransitionGroup, jumpDrawablesToCurrentState, layout, measureChild, measureChildren, measureChildWithMargins, offsetChildrenTopAndBottom, offsetDescendantRectToMyCoords, offsetRectIntoDescendantCoords, onChildVisibilityChanged, onCreateDrawableState, onInterceptHoverEvent, onInterceptTouchEvent, onNestedFling, onNestedPreFling, onNestedPreScroll, onNestedScroll, onNestedScrollAccepted, onRequestFocusInDescendants, onResolvePointerIcon, onSetLayoutParams, onStartNestedScroll, onStopNestedScroll, onViewAdded, onViewRemoved, removeAllViews, removeAllViewsInLayout, removeDetachedView, removeTransientView, removeView, removeViewAt, removeViewInLayout, removeViews, removeViewsInLayout, requestChildFocus, requestChildRectangleOnScreen, requestDisallowInterceptTouchEvent, requestFocus, requestTransitionStart, resetResolvedDrawables, resolveDrawables, resolveLayoutDirection, resolveLayoutParams, resolvePadding, resolveRtlPropertiesIfNeeded, resolveTextAlignment, resolveTextDirection, restoreDefaultFocus, setAddStatesFromChildren, setBooleanFlag, setChildrenDrawingOrderEnabled, setClipChildren, setClipToPadding, setDescendantFocusability, setLayoutTransition, setTouchscreenBlocksFocus, setTransitionGroup, showContextMenuForChild, startActionModeForChild, startViewTransition, suppressLayout, transformPointToViewLocal, updateViewLayout

Methods inherited from class icyllis.modernui.view.View

addFocusables, addOnAttachStateChangeListener, addOnLayoutChangeListener, awakenScrollBars, awakenScrollBars, callOnClick, cancelLongPress, cancelPendingInputEvents, canReceivePointerEvents, canResolveLayoutDirection, canResolveTextAlignment, canResolveTextDirection, canScrollHorizontally, canScrollVertically, combineMeasuredStates, computeHorizontalScrollExtent, computeHorizontalScrollOffset, computeHorizontalScrollRange, computeScroll, computeVerticalScrollExtent, computeVerticalScrollOffset, computeVerticalScrollRange, createContextMenu, dispatchGenericMotionEvent, dispatchNestedFling, dispatchNestedPreFling, dispatchNestedPreScroll, dispatchNestedScroll, dispatchPointerEvent, dp, draw, drawableHotspotChanged, findViewById, findViewByPredicate, findViewByPredicateInsideOut, focusSearch, forceHasOverlappingRendering, forceLayout, generateViewId, getAlpha, getAnimationMatrix, getBackground, getBottom, getBoundsOnScreen, getBoundsOnScreen, getContext, getContextMenuInfo, getDefaultSize, getDrawableState, getDrawingRect, getElevation, getFadingEdge, getFadingEdgeLength, getFocusable, getFocusables, getFocusedRect, getForeground, getForegroundGravity, getGlobalVisibleRect, getGlobalVisibleRect, getHandler, getHasOverlappingRendering, getHeight, getHitRect, getHorizontalScrollbarHeight, getHorizontalScrollbarThumbDrawable, getHorizontalScrollbarTrackDrawable, getId, getInverseMatrix, getKeyDispatcherState, getLayoutDirection, getLayoutParams, getLeft, getLocalVisibleRect, getLocationInWindow, getLocationOnScreen, getMatrix, getMeasuredHeight, getMeasuredHeightAndState, getMeasuredState, getMeasuredWidth, getMeasuredWidthAndState, getMinimumHeight, getMinimumWidth, getNextClusterForwardId, getNextFocusDownId, getNextFocusForwardId, getNextFocusLeftId, getNextFocusRightId, getNextFocusUpId, getOnFocusChangeListener, getOnLongClickListener, getOverScrollMode, getPaddingBottom, getPaddingEnd, getPaddingLeft, getPaddingRight, getPaddingStart, getPaddingTop, getParent, getPivotX, getPivotY, getRawLayoutDirection, getRawTextAlignment, getRawTextDirection, getRevealOnFocusHint, getRight, getRootView, getRotation, getRotationX, getRotationY, getScaleX, getScaleY, getScrollBarDefaultDelayBeforeFade, getScrollBarFadeDuration, getScrollBarSize, getScrollBarStyle, getScrollIndicators, getScrollX, getScrollY, getStateListAnimator, getSuggestedMinimumHeight, getSuggestedMinimumWidth, getTag, getTextAlignment, getTextDirection, getTooltipText, getTooltipView, getTop, getTouchables, getTransitionAlpha, getTransitionName, getTranslationX, getTranslationY, getTranslationZ, getVerticalFadingEdgeLength, getVerticalScrollbarThumbDrawable, getVerticalScrollbarTrackDrawable, getVerticalScrollbarWidth, getViewRoot, getViewTreeObserver, getVisibility, getWidth, getWindowAttachCount, getWindowVisibility, getX, getY, getZ, handleScrollBarDragging, hasExplicitFocusable, hasFocusable, hasIdentityMatrix, hasNestedScrollingParent, hasOnClickListeners, hasOnLongClickListeners, hasOverlappingRendering, hasTranslationTransientState, hasWindowFocus, invalidate, invalidateDrawable, isActivated, isAttachedToWindow, isClickable, isContextClickable, isDuplicateParentStateEnabled, isEnabled, isFocusable, isFocusableInTouchMode, isFocused, isFocusedByDefault, isForegroundInsidePadding, isHapticFeedbackEnabled, isHorizontalFadingEdgeEnabled, isHorizontalScrollBarEnabled, isHovered, isInLayout, isInScrollingContainer, isInTouchMode, isKeyboardNavigationCluster, isLaidOut, isLayoutDirectionInherited, isLayoutDirectionResolved, isLayoutRequested, isLayoutRtl, isLongClickable, isNestedScrollingEnabled, isPaddingRelative, isPivotSet, isPressed, isRootNamespace, isScrollbarFadingEnabled, isSelected, isShowingLayoutBounds, isShown, isSoundEffectsEnabled, isTemporarilyDetached, isTextAlignmentInherited, isTextAlignmentResolved, isTextDirectionInherited, isTextDirectionResolved, isVerticalFadingEdgeEnabled, isVerticalScrollBarEnabled, isVerticalScrollBarHidden, keyboardNavigationClusterSearch, mapRectFromViewToScreenCoords, measure, mergeDrawableStates, offsetLeftAndRight, offsetTopAndBottom, onAttachedToWindow, onCancelPendingInputEvents, onCreateContextMenu, onDetachedFromWindow, onDragEvent, onDraw, onDrawForeground, onDrawScrollBars, onFinishTemporaryDetach, onFocusChanged, onGenericMotionEvent, onHoverChanged, onHoverEvent, onKeyDown, onKeyShortcut, onKeyUp, onOverScrolled, onResolveDrawables, onRtlPropertiesChanged, onScrollChanged, onSizeChanged, onStartTemporaryDetach, onTouchEvent, onVisibilityAggregated, onVisibilityChanged, onWindowFocusChanged, onWindowVisibilityChanged, overScrollBy, performButtonActionOnTouchDown, performClick, performContextClick, performContextClick, performHapticFeedback, performHapticFeedback, performLongClick, performLongClick, playSoundEffect, pointInView, post, postDelayed, postInvalidate, postInvalidateDelayed, postInvalidateOnAnimation, postOnAnimation, postOnAnimationDelayed, refreshDrawableState, removeCallbacks, removeOnAttachStateChangeListener, removeOnLayoutChangeListener, requestFocus, requestFocus, requestRectangleOnScreen, requestRectangleOnScreen, requireViewById, resetPivot, resolveSize, resolveSizeAndState, scheduleDrawable, scrollBy, scrollTo, setActivated, setAlpha, setAnimationMatrix, setBackground, setBottom, setClickable, setContextClickable, setDuplicateParentStateEnabled, setElevation, setEnabled, setFocusable, setFocusable, setFocusableInTouchMode, setFocusedByDefault, setFocusedInCluster, setForeground, setForegroundGravity, setFrame, setHapticFeedbackEnabled, setHasTransientState, setHasTranslationTransientState, setHorizontalFadingEdgeEnabled, setHorizontalScrollBarEnabled, setHorizontalScrollbarThumbDrawable, setHorizontalScrollbarTrackDrawable, setHovered, setId, setIsRootNamespace, setKeyboardNavigationCluster, setLayoutDirection, setLayoutParams, setLeft, setLongClickable, setMeasuredDimension, setMinimumHeight, setMinimumWidth, setNestedScrollingEnabled, setNextClusterForwardId, setNextFocusDownId, setNextFocusForwardId, setNextFocusLeftId, setNextFocusRightId, setNextFocusUpId, setOnClickListener, setOnContextClickListener, setOnCreateContextMenuListener, setOnDragListener, setOnFocusChangeListener, setOnGenericMotionListener, setOnHoverListener, setOnKeyListener, setOnLongClickListener, setOnScrollChangeListener, setOnTouchListener, setOverScrollMode, setPadding, setPaddingRelative, setPivotX, setPivotY, setPressed, setRevealOnFocusHint, setRight, setRotation, setRotationX, setRotationY, setScaleX, setScaleY, setScrollBarDefaultDelayBeforeFade, setScrollBarFadeDuration, setScrollbarFadingEnabled, setScrollBarSize, setScrollBarStyle, setScrollIndicators, setScrollIndicators, setScrollX, setScrollY, setSelected, setSoundEffectsEnabled, setStateListAnimator, setTag, setTextAlignment, setTextDirection, setTooltipText, setTop, setTransitionAlpha, setTransitionName, setTransitionVisibility, setTranslationX, setTranslationY, setTranslationZ, setVerticalFadingEdgeEnabled, setVerticalScrollBarEnabled, setVerticalScrollbarThumbDrawable, setVerticalScrollbarTrackDrawable, setVisibility, setWillNotDraw, setX, setY, setZ, showContextMenu, showContextMenu, sp, startActionMode, startActionMode, startDragAndDrop, startNestedScroll, stopNestedScroll, toGlobalMotionEvent, toLocalMotionEvent, toString, transformFromViewToWindowSpace, transformMatrixToGlobal, transformMatrixToLocal, unscheduleDrawable, unscheduleDrawable, verifyDrawable, willNotDraw

Methods inherited from class java.lang.Object

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

Methods inherited from interface icyllis.modernui.view.ViewParent

canResolveLayoutDirection, canResolveTextAlignment, canResolveTextDirection, createContextMenu, getLayoutDirection, getParent, getTextAlignment, getTextDirection, isLayoutDirectionResolved, isLayoutRequested, isTextAlignmentResolved, isTextDirectionResolved, keyboardNavigationClusterSearch

Field Details

TRUE

public static final int TRUE

See Also:

• Constant Field Values

LEFT_OF

public static final int LEFT_OF

Rule that aligns a child's right edge with another child's left edge.

See Also:

• Constant Field Values

RIGHT_OF

public static final int RIGHT_OF

Rule that aligns a child's left edge with another child's right edge.

See Also:

• Constant Field Values

ABOVE

public static final int ABOVE

Rule that aligns a child's bottom edge with another child's top edge.

See Also:

• Constant Field Values

BELOW

public static final int BELOW

Rule that aligns a child's top edge with another child's bottom edge.

See Also:

• Constant Field Values

ALIGN_BASELINE

public static final int ALIGN_BASELINE

Rule that aligns a child's baseline with another child's baseline.

See Also:

• Constant Field Values

ALIGN_LEFT

public static final int ALIGN_LEFT

Rule that aligns a child's left edge with another child's left edge.

See Also:

• Constant Field Values

ALIGN_TOP

public static final int ALIGN_TOP

Rule that aligns a child's top edge with another child's top edge.

See Also:

• Constant Field Values

ALIGN_RIGHT

public static final int ALIGN_RIGHT

Rule that aligns a child's right edge with another child's right edge.

See Also:

• Constant Field Values

ALIGN_BOTTOM

public static final int ALIGN_BOTTOM

Rule that aligns a child's bottom edge with another child's bottom edge.

See Also:

• Constant Field Values

ALIGN_PARENT_LEFT

public static final int ALIGN_PARENT_LEFT

Rule that aligns the child's left edge with its RelativeLayout parent's left edge.

See Also:

• Constant Field Values

ALIGN_PARENT_TOP

public static final int ALIGN_PARENT_TOP

Rule that aligns the child's top edge with its RelativeLayout parent's top edge.

See Also:

• Constant Field Values

ALIGN_PARENT_RIGHT

public static final int ALIGN_PARENT_RIGHT

Rule that aligns the child's right edge with its RelativeLayout parent's right edge.

See Also:

• Constant Field Values

ALIGN_PARENT_BOTTOM

public static final int ALIGN_PARENT_BOTTOM

Rule that aligns the child's bottom edge with its RelativeLayout parent's bottom edge.

See Also:

• Constant Field Values

CENTER_IN_PARENT

public static final int CENTER_IN_PARENT

Rule that centers the child with respect to the bounds of its RelativeLayout parent.

See Also:

• Constant Field Values

CENTER_HORIZONTAL

public static final int CENTER_HORIZONTAL

Rule that centers the child horizontally with respect to the bounds of its RelativeLayout parent.

See Also:

• Constant Field Values

CENTER_VERTICAL

public static final int CENTER_VERTICAL

Rule that centers the child vertically with respect to the bounds of its RelativeLayout parent.

See Also:

• Constant Field Values

START_OF

public static final int START_OF

Rule that aligns a child's end edge with another child's start edge.

See Also:

• Constant Field Values

END_OF

public static final int END_OF

Rule that aligns a child's start edge with another child's end edge.

See Also:

• Constant Field Values

ALIGN_START

public static final int ALIGN_START

Rule that aligns a child's start edge with another child's start edge.

See Also:

• Constant Field Values

ALIGN_END

public static final int ALIGN_END

Rule that aligns a child's end edge with another child's end edge.

See Also:

• Constant Field Values

ALIGN_PARENT_START

public static final int ALIGN_PARENT_START

Rule that aligns the child's start edge with its RelativeLayout parent's start edge.

See Also:

• Constant Field Values

ALIGN_PARENT_END

public static final int ALIGN_PARENT_END

Rule that aligns the child's end edge with its RelativeLayout parent's end edge.

See Also:

• Constant Field Values

Constructor Details

RelativeLayout

public RelativeLayout(Context context)

Method Details

shouldDelayChildPressedState

public boolean shouldDelayChildPressedState()

Description copied from class: ViewGroup

Return true if the pressed state should be delayed for children or descendants of this ViewGroup. Generally, this should be done for containers that can scroll, such as a List. This prevents the pressed state from appearing when the user is actually trying to scroll the content.

The default implementation returns true for compatibility reasons. Subclasses that do not scroll should generally override this method and return false.

Overrides:

shouldDelayChildPressedState in class ViewGroup

setIgnoreGravity

public void setIgnoreGravity(int viewId)

Defines which View is ignored when the gravity is applied. This setting has no effect if the gravity is Gravity.START | Gravity.TOP.

Parameters:

viewId - The id of the View to be ignored by gravity, or 0 if no View should be ignored.

See Also:

• setGravity(int)

getIgnoreGravity

public int getIgnoreGravity()

Get the id of the View to be ignored by gravity

getGravity

public int getGravity()

Describes how the child views are positioned.

Returns:

the gravity.

See Also:

• setGravity(int)
• Gravity

setGravity

public void setGravity(int gravity)

Describes how the child views are positioned. Defaults to Gravity.START | Gravity.TOP.

Note that since RelativeLayout considers the positioning of each child relative to one another to be significant, setting gravity will affect the positioning of all children as a single unit within the parent. This happens after children have been relatively positioned.

Parameters:

gravity - See Gravity

See Also:

• setHorizontalGravity(int)
• setVerticalGravity(int)

setHorizontalGravity

public void setHorizontalGravity(int horizontalGravity)

setVerticalGravity

public void setVerticalGravity(int verticalGravity)

getBaseline

public int getBaseline()

Description copied from class: View

Return the offset of the widget's text baseline from the widget's top boundary. If this widget does not support baseline alignment, this method returns -1.

Overrides:

getBaseline in class View

Returns:

the offset of the baseline within the widget's bounds or -1 if baseline alignment is not supported

requestLayout

public void requestLayout()

Description copied from class: View

Call this when something has changed which has invalidated the layout of this view. This will schedule a layout pass of the view tree. This should not be called while the view hierarchy is currently in a layout pass (View.isInLayout(). If layout is happening, the request may be honored at the end of the current layout pass (and then layout will run again) or after the current frame is drawn and the next layout occurs.

Subclasses which override this method should call the superclass method to handle possible request-during-layout errors correctly.

Specified by:

requestLayout in interface ViewParent

Overrides:

requestLayout in class View

onMeasure

protected void onMeasure(int widthMeasureSpec,
 int heightMeasureSpec)

Description copied from class: View

Measure the view and its content to determine the measured width and the measured height. This method is invoked by View.measure(int, int) and should be overridden by subclasses to provide accurate and efficient measurement of their contents.

CONTRACT: When overriding this method, you must call View.setMeasuredDimension(int, int) to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException, thrown by View.measure(int, int). Calling super.onMeasure() is a valid use.

The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec. Subclasses should override the base one to provide better measurements of their content.

Overrides:

onMeasure in class View

Parameters:

widthMeasureSpec - width measure specification imposed by the parent MeasureSpec

heightMeasureSpec - height measure specification imposed by the parent MeasureSpec

onLayout

protected void onLayout(boolean changed,
 int left,
 int top,
 int right,
 int bottom)

Description copied from class: View

Called from View.layout(int, int, int, int) when this view should assign a size and position to each of its children.

Derived classes with children should override this method and call layout on each of their children.

Specified by:

onLayout in class ViewGroup

Parameters:

changed - This is a new size or position for this view

left - Left position, relative to parent

top - Top position, relative to parent

right - Right position, relative to parent

bottom - Bottom position, relative to parent

generateLayoutParams

@Nonnull
protected ViewGroup.LayoutParams generateLayoutParams(@Nonnull
 ViewGroup.LayoutParams lp)

Description copied from class: ViewGroup

Returns a safe set of layout parameters based on the supplied layout params. When a ViewGroup is passed a View whose layout params do not pass the test of ViewGroup.checkLayoutParams(LayoutParams), this method is invoked. This method should return a new set of layout params suitable for this ViewGroup, possibly by copying the appropriate attributes from the specified set of layout params.

Overrides:

generateLayoutParams in class ViewGroup

Parameters:

lp - The layout parameters to convert into a suitable set of layout parameters for this ViewGroup.

Returns:

an instance of ViewGroup.LayoutParams or one of its descendants

generateDefaultLayoutParams

@Nonnull
protected ViewGroup.LayoutParams generateDefaultLayoutParams()

Description copied from class: ViewGroup

Returns a set of default layout parameters. These parameters are requested when the View passed to ViewGroup.addView(View) has no layout parameters already set. If null is returned, an exception is thrown from addView.

Overrides:

generateDefaultLayoutParams in class ViewGroup

Returns:

a set of default layout parameters

checkLayoutParams

protected boolean checkLayoutParams(@Nullable
 ViewGroup.LayoutParams p)

Description copied from class: ViewGroup

Check whether given params fit to this view group.

See also ViewGroup.generateLayoutParams(LayoutParams) See also ViewGroup.generateDefaultLayoutParams()

Overrides:

checkLayoutParams in class ViewGroup

Parameters:

p - layout params to check

Returns:

if params matched to this view group