public class LinearLayout extends ViewGroup
setOrientation()
.
You can also specify gravity, which specifies the alignment of all the child elements by
calling setGravity()
or specify that specific children
grow to fill up any remaining space in the layout by setting the weight member of
LinearLayout.LayoutParams
.
The default orientation is horizontal.
See the Linear Layout guide.
Also see android.widget.LinearLayout.LayoutParams
for layout attributes
Modifier and Type | Class and Description |
---|---|
static class |
LinearLayout.LayoutParams
Per-child layout information associated with ViewLinearLayout.
|
ViewGroup.MarginLayoutParams, ViewGroup.OnHierarchyChangeListener
View.AccessibilityDelegate, View.BaseSavedState, View.DragShadowBuilder, View.MeasureSpec, View.OnAttachStateChangeListener, View.OnClickListener, View.OnCreateContextMenuListener, View.OnDragListener, View.OnFocusChangeListener, View.OnGenericMotionListener, View.OnHoverListener, View.OnKeyListener, View.OnLayoutChangeListener, View.OnLongClickListener, View.OnSystemUiVisibilityChangeListener, View.OnTouchListener
Modifier and Type | Field and Description |
---|---|
static int |
HORIZONTAL |
static int |
SHOW_DIVIDER_BEGINNING
Show a divider at the beginning of the group.
|
static int |
SHOW_DIVIDER_END
Show a divider at the end of the group.
|
static int |
SHOW_DIVIDER_MIDDLE
Show dividers between each item in the group.
|
static int |
SHOW_DIVIDER_NONE
Don't show any dividers.
|
static int |
VERTICAL |
CLIP_BOUNDS, CLIP_TO_PADDING_MASK, FLAG_DISALLOW_INTERCEPT, FLAG_SUPPORT_STATIC_TRANSFORMATIONS, FLAG_USE_CHILD_DRAWING_ORDER, FOCUS_AFTER_DESCENDANTS, FOCUS_BEFORE_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS, mDisappearingChildren, mGroupFlags, mOnHierarchyChangeListener, mPersistentDrawingCache, OPTICAL_BOUNDS, PERSISTENT_ALL_CACHES, PERSISTENT_ANIMATION_CACHE, PERSISTENT_NO_CACHE, PERSISTENT_SCROLLING_CACHE
ALPHA, DEBUG_LAYOUT_PROPERTY, DRAG_FLAG_GLOBAL, DRAWING_CACHE_QUALITY_AUTO, DRAWING_CACHE_QUALITY_HIGH, DRAWING_CACHE_QUALITY_LOW, 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, FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS, FIND_VIEWS_WITH_CONTENT_DESCRIPTION, FIND_VIEWS_WITH_TEXT, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, 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, IMPORTANT_FOR_ACCESSIBILITY_AUTO, IMPORTANT_FOR_ACCESSIBILITY_NO, IMPORTANT_FOR_ACCESSIBILITY_YES, INVISIBLE, KEEP_SCREEN_ON, LAYER_TYPE_HARDWARE, LAYER_TYPE_NONE, LAYER_TYPE_SOFTWARE, LAYOUT_DIRECTION_INHERIT, LAYOUT_DIRECTION_LOCALE, LAYOUT_DIRECTION_LTR, LAYOUT_DIRECTION_RTL, mBottom, mCachingFailed, mContext, mCurrentAnimation, MEASURED_HEIGHT_STATE_SHIFT, MEASURED_SIZE_MASK, MEASURED_STATE_MASK, MEASURED_STATE_TOO_SMALL, mInputEventConsistencyVerifier, mLayoutParams, mLeft, mPaddingBottom, mPaddingLeft, mPaddingRight, mPaddingTop, mParent, mRight, mScrollX, mScrollY, mTag, mTop, mUserPaddingBottom, mUserPaddingLeft, mUserPaddingRight, NO_ID, 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, PUBLIC_STATUS_BAR_VISIBILITY_MASK, ROTATION, ROTATION_X, ROTATION_Y, SCALE_X, SCALE_Y, SCREEN_STATE_OFF, SCREEN_STATE_ON, SCROLLBAR_POSITION_DEFAULT, SCROLLBAR_POSITION_LEFT, SCROLLBAR_POSITION_RIGHT, SCROLLBARS_INSIDE_INSET, SCROLLBARS_INSIDE_OVERLAY, SCROLLBARS_OUTSIDE_INSET, SCROLLBARS_OUTSIDE_OVERLAY, SELECTED_STATE_SET, SELECTED_WINDOW_FOCUSED_STATE_SET, SOUND_EFFECTS_ENABLED, STATUS_BAR_DISABLE_BACK, STATUS_BAR_DISABLE_CLOCK, STATUS_BAR_DISABLE_EXPAND, STATUS_BAR_DISABLE_HOME, STATUS_BAR_DISABLE_NOTIFICATION_ALERTS, STATUS_BAR_DISABLE_NOTIFICATION_ICONS, STATUS_BAR_DISABLE_NOTIFICATION_TICKER, STATUS_BAR_DISABLE_RECENT, STATUS_BAR_DISABLE_SEARCH, STATUS_BAR_DISABLE_SYSTEM_INFO, STATUS_BAR_HIDDEN, STATUS_BAR_VISIBLE, SYSTEM_UI_CLEARABLE_FLAGS, SYSTEM_UI_FLAG_FULLSCREEN, SYSTEM_UI_FLAG_HIDE_NAVIGATION, SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN, SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION, SYSTEM_UI_FLAG_LAYOUT_STABLE, SYSTEM_UI_FLAG_LOW_PROFILE, SYSTEM_UI_FLAG_VISIBLE, SYSTEM_UI_LAYOUT_FLAGS, 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_INHERIT, TEXT_DIRECTION_LOCALE, TEXT_DIRECTION_LTR, TEXT_DIRECTION_RTL, TRANSLATION_X, TRANSLATION_Y, VIEW_LOG_TAG, VISIBLE, WINDOW_FOCUSED_STATE_SET, X, Y
Constructor and Description |
---|
LinearLayout(Context context) |
LinearLayout(Context context,
AttributeSet attrs) |
LinearLayout(Context context,
AttributeSet attrs,
int defStyle) |
Modifier and Type | Method and Description |
---|---|
protected boolean |
checkLayoutParams(ViewGroup.LayoutParams p) |
protected LinearLayout.LayoutParams |
generateDefaultLayoutParams()
Returns a set of layout parameters with a width of
ViewGroup.LayoutParams.MATCH_PARENT
and a height of ViewGroup.LayoutParams.WRAP_CONTENT
when the layout's orientation is VERTICAL . |
LinearLayout.LayoutParams |
generateLayoutParams(AttributeSet attrs)
Returns a new set of layout parameters based on the supplied attributes set.
|
protected LinearLayout.LayoutParams |
generateLayoutParams(ViewGroup.LayoutParams p)
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 |
getBaselineAlignedChildIndex() |
Drawable |
getDividerDrawable() |
int |
getDividerPadding()
Get the padding size used to inset dividers in pixels
|
int |
getDividerWidth()
Get the width of the current divider drawable.
|
int |
getOrientation()
Returns the current orientation.
|
int |
getShowDividers() |
float |
getWeightSum()
Returns the desired weights sum.
|
protected boolean |
hasDividerBeforeChildAt(int childIndex)
Determines where to position dividers between children.
|
boolean |
isBaselineAligned()
Indicates whether widgets contained within this layout are aligned
on their baseline or not.
|
boolean |
isMeasureWithLargestChildEnabled()
When true, all children with a weight will be considered having
the minimum size of the largest child.
|
protected void |
onDraw(Canvas canvas)
Implement this to do your drawing.
|
void |
onInitializeAccessibilityEvent(AccessibilityEvent event)
Initializes an
AccessibilityEvent with information about
this View which is the event source. |
void |
onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info)
Initializes an
AccessibilityNodeInfo with information about this view. |
protected void |
onLayout(boolean changed,
int l,
int t,
int r,
int b)
Called from layout 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 |
setBaselineAligned(boolean baselineAligned)
Defines whether widgets contained in this layout are
baseline-aligned or not.
|
void |
setBaselineAlignedChildIndex(int i) |
void |
setDividerDrawable(Drawable divider)
Set a drawable to be used as a divider between items.
|
void |
setDividerPadding(int padding)
Set padding displayed on both ends of dividers.
|
void |
setGravity(int gravity)
Describes how the child views are positioned.
|
void |
setHorizontalGravity(int horizontalGravity) |
void |
setMeasureWithLargestChildEnabled(boolean enabled)
When set to true, all children with a weight will be considered having
the minimum size of the largest child.
|
void |
setOrientation(int orientation)
Should the layout be a column or a row.
|
void |
setShowDividers(int showDividers)
Set how dividers should be shown between items in this layout
|
void |
setVerticalGravity(int verticalGravity) |
void |
setWeightSum(float weightSum)
Defines the desired weights sum.
|
boolean |
shouldDelayChildPressedState()
Return true if the pressed state should be delayed for children or descendants of this
ViewGroup.
|
addChildrenForAccessibility, addFocusables, addStatesFromChildren, addTouchables, addView, addView, addView, addView, addView, addViewInLayout, addViewInLayout, attachLayoutAnimationParameters, attachViewToParent, bringChildToFront, canAnimate, childAccessibilityStateChanged, childDrawableStateChanged, childHasTransientStateChanged, cleanupLayoutState, clearChildFocus, clearDisappearingChildren, clearFocus, debug, detachAllViewsFromParent, detachViewFromParent, detachViewFromParent, detachViewsFromParent, dispatchConfigurationChanged, dispatchDisplayHint, dispatchDragEvent, dispatchDraw, dispatchFinishTemporaryDetach, dispatchFreezeSelfOnly, dispatchGenericFocusedEvent, dispatchGenericPointerEvent, dispatchGetDisplayList, dispatchHoverEvent, dispatchKeyEvent, dispatchKeyEventPreIme, dispatchKeyShortcutEvent, dispatchRestoreInstanceState, dispatchSaveInstanceState, dispatchSetActivated, dispatchSetPressed, dispatchSetSelected, dispatchStartTemporaryDetach, dispatchSystemUiVisibilityChanged, dispatchThawSelfOnly, dispatchTouchEvent, dispatchTrackballEvent, dispatchUnhandledMove, dispatchVisibilityChanged, dispatchWindowFocusChanged, dispatchWindowSystemUiVisiblityChanged, dispatchWindowVisibilityChanged, drawableStateChanged, drawChild, endViewTransition, findFocus, findViewByPredicateTraversal, findViewsWithText, findViewTraversal, findViewWithTagTraversal, fitSystemWindows, focusableViewAvailable, focusSearch, gatherTransparentRegion, getChildAt, getChildCount, getChildDrawingOrder, getChildMeasureSpec, getChildStaticTransformation, getChildVisibleRect, getDescendantFocusability, getFocusedChild, getLayoutAnimation, getLayoutAnimationListener, getLayoutMode, getLayoutTransition, getPersistentDrawingCache, hasFocus, hasFocusable, hasHoveredChild, hasTransientState, indexOfChild, internalSetPadding, invalidateChild, invalidateChildFast, invalidateChildInParent, isAlwaysDrawnWithCacheEnabled, isAnimationCacheEnabled, isChildrenDrawingOrderEnabled, isChildrenDrawnWithCacheEnabled, isMotionEventSplittingEnabled, isTransformedTouchPointInView, jumpDrawablesToCurrentState, layout, makeOptionalFitsSystemWindows, measureChild, measureChildren, measureChildWithMargins, offsetChildrenTopAndBottom, offsetDescendantRectToMyCoords, offsetRectIntoDescendantCoords, onAnimationEnd, onAnimationStart, onChildVisibilityChanged, onCreateDrawableState, onDebugDraw, onDebugDrawMargins, onInterceptHoverEvent, onInterceptTouchEvent, onRequestFocusInDescendants, onRequestSendAccessibilityEvent, onSetLayoutParams, onViewAdded, onViewRemoved, recomputeViewAttributes, removeAllViews, removeAllViewsInLayout, removeDetachedView, removeView, removeViewAt, removeViewInLayout, removeViews, removeViewsInLayout, requestChildFocus, requestChildRectangleOnScreen, requestDisallowInterceptTouchEvent, requestFocus, requestSendAccessibilityEvent, requestTransitionStart, requestTransparentRegion, resetAccessibilityStateChanged, resetResolvedDrawables, resetResolvedLayoutDirection, resetResolvedPadding, resetResolvedTextAlignment, resetResolvedTextDirection, resetRtlProperties, resolveDrawables, resolveLayoutDirection, resolveLayoutParams, resolvePadding, resolveRtlPropertiesIfNeeded, resolveTextAlignment, resolveTextDirection, scheduleLayoutAnimation, setAddStatesFromChildren, setAlwaysDrawnWithCacheEnabled, setAnimationCacheEnabled, setChildrenDrawingCacheEnabled, setChildrenDrawingOrderEnabled, setChildrenDrawnWithCacheEnabled, setClipChildren, setClipToPadding, setDescendantFocusability, setLayoutAnimation, setLayoutAnimationListener, setLayoutMode, setLayoutTransition, setMotionEventSplittingEnabled, setOnHierarchyChangeListener, setPersistentDrawingCache, setStaticTransformationsEnabled, showContextMenuForChild, startActionModeForChild, startLayoutAnimation, startViewTransition, updateViewLayout
addFocusables, addOnAttachStateChangeListener, addOnLayoutChangeListener, animate, announceForAccessibility, applyDrawableToTransparentRegion, awakenScrollBars, awakenScrollBars, awakenScrollBars, bringToFront, buildDrawingCache, buildDrawingCache, buildLayer, callOnClick, cancelLongPress, canHaveDisplayList, canResolveLayoutDirection, canScrollHorizontally, canScrollVertically, checkInputConnectionProxy, clearAccessibilityFocus, clearAnimation, combineMeasuredStates, computeHorizontalScrollExtent, computeHorizontalScrollOffset, computeHorizontalScrollRange, computeOpaqueFlags, computeScroll, computeVerticalScrollExtent, computeVerticalScrollOffset, computeVerticalScrollRange, createAccessibilityNodeInfo, createContextMenu, debug, debugIndent, destroyDrawingCache, destroyHardwareResources, dispatchGenericMotionEvent, dispatchPointerEvent, dispatchPopulateAccessibilityEvent, draw, findViewById, findViewByPredicate, findViewByPredicateInsideOut, findViewWithTag, fitsSystemWindows, focusSearch, forceLayout, generateViewId, getAccessibilityCursorPosition, getAccessibilityDelegate, getAccessibilityNodeProvider, getAccessibilityViewId, getAccessibilityWindowId, getAlpha, getAnimation, getApplicationWindowToken, getBackground, getBottom, getBottomFadingEdgeStrength, getBottomPaddingOffset, getCameraDistance, getContentDescription, getContext, getContextMenuInfo, getDefaultSize, getDisplay, getDisplayList, getDrawableState, getDrawingCache, getDrawingCache, getDrawingCacheBackgroundColor, getDrawingCacheQuality, getDrawingRect, getDrawingTime, getFadeHeight, getFadeTop, getFilterTouchesWhenObscured, getFitsSystemWindows, getFocusables, getFocusedRect, getGlobalVisibleRect, getGlobalVisibleRect, getHandler, getHardwareRenderer, getHeight, getHitRect, getHorizontalFadingEdgeLength, getHorizontalScrollbarHeight, getHorizontalScrollFactor, getId, getImportantForAccessibility, getIterableTextForAccessibility, getIteratorForGranularity, getKeepScreenOn, getKeyDispatcherState, getLabelFor, getLayerType, getLayoutDirection, getLayoutParams, getLeft, getLeftFadingEdgeStrength, getLeftPaddingOffset, getLocalVisibleRect, getLocationInWindow, getLocationOnScreen, getMatrix, getMeasuredHeight, getMeasuredHeightAndState, getMeasuredState, getMeasuredWidth, getMeasuredWidthAndState, getMinimumHeight, getMinimumWidth, getNextFocusDownId, getNextFocusForwardId, getNextFocusLeftId, getNextFocusRightId, getNextFocusUpId, getOnFocusChangeListener, getOpticalInsets, getOverScrollMode, getPaddingBottom, getPaddingEnd, getPaddingLeft, getPaddingRight, getPaddingStart, getPaddingTop, getParent, getParentForAccessibility, getPivotX, getPivotY, getRawLayoutDirection, getRawTextAlignment, getRawTextDirection, getResources, getRight, getRightFadingEdgeStrength, getRightPaddingOffset, getRootView, getRotation, getRotationX, getRotationY, getScaleX, getScaleY, getScrollBarDefaultDelayBeforeFade, getScrollBarFadeDuration, getScrollBarSize, getScrollBarStyle, getScrollX, getScrollY, getSolidColor, getSuggestedMinimumHeight, getSuggestedMinimumWidth, getSystemUiVisibility, getTag, getTag, getTextAlignment, getTextDirection, getTop, getTopFadingEdgeStrength, getTopPaddingOffset, getTouchables, getTouchDelegate, getTranslationX, getTranslationY, getVerticalFadingEdgeLength, getVerticalScrollbarPosition, getVerticalScrollbarWidth, getVerticalScrollFactor, getViewRootImpl, getViewTreeObserver, getVisibility, getWidth, getWindowAttachCount, getWindowSystemUiVisibility, getWindowToken, getWindowVisibility, getWindowVisibleDisplayFrame, getX, getY, hackTurnOffWindowResizeAnim, hasOnClickListeners, hasOpaqueScrollbars, hasOverlappingRendering, hasWindowFocus, includeForAccessibility, inflate, initializeFadingEdge, initializeScrollbars, invalidate, invalidate, invalidate, invalidateDrawable, invalidateParentCaches, invalidateParentIfNeeded, isActionableForAccessibility, isActivated, isClickable, isDirty, isDrawingCacheEnabled, isDuplicateParentStateEnabled, isEnabled, isFocusable, isFocusableInTouchMode, isFocused, isHapticFeedbackEnabled, isHardwareAccelerated, isHorizontalFadingEdgeEnabled, isHorizontalScrollBarEnabled, isHovered, isImportantForAccessibility, isInEditMode, isInScrollingContainer, isInTouchMode, isLayoutDirectionInherited, isLayoutRequested, isLayoutRtl, isLongClickable, isOpaque, isPaddingOffsetRequired, isPaddingRelative, isPressed, isRootNamespace, isSaveEnabled, isSaveFromParentEnabled, isScrollbarFadingEnabled, isScrollContainer, isSelected, isShown, isSoundEffectsEnabled, isTextAlignmentInherited, isTextDirectionInherited, isVerticalFadingEdgeEnabled, isVerticalScrollBarEnabled, isVerticalScrollBarHidden, isVisibleToUser, isVisibleToUser, measure, mergeDrawableStates, notifyAccessibilityStateChanged, offsetLeftAndRight, offsetTopAndBottom, onAttachedToWindow, onCheckIsTextEditor, onCloseSystemDialogs, onConfigurationChanged, onCreateContextMenu, onCreateInputConnection, onDetachedFromWindow, onDisplayHint, onDragEvent, onDrawHorizontalScrollBar, onDrawScrollBars, onDrawVerticalScrollBar, onFilterTouchEventForSecurity, onFinishInflate, onFinishTemporaryDetach, onFocusChanged, onFocusLost, onGenericMotionEvent, onHoverChanged, onHoverEvent, onKeyDown, onKeyLongPress, onKeyMultiple, onKeyPreIme, onKeyShortcut, onKeyUp, onOverScrolled, onPopulateAccessibilityEvent, onResolveDrawables, onRestoreInstanceState, onRtlPropertiesChanged, onSaveInstanceState, onScreenStateChanged, onScrollChanged, onSetAlpha, onSizeChanged, onStartTemporaryDetach, onTouchEvent, onTrackballEvent, onVisibilityChanged, onWindowFocusChanged, onWindowSystemUiVisibilityChanged, onWindowVisibilityChanged, outputDirtyFlags, overScrollBy, performAccessibilityAction, performButtonActionOnTouchDown, performClick, performHapticFeedback, performHapticFeedback, performLongClick, playSoundEffect, post, postDelayed, postInvalidate, postInvalidate, postInvalidateDelayed, postInvalidateDelayed, postInvalidateOnAnimation, postInvalidateOnAnimation, postOnAnimation, postOnAnimationDelayed, recomputePadding, refreshDrawableState, removeCallbacks, removeOnAttachStateChangeListener, removeOnLayoutChangeListener, requestAccessibilityFocus, requestFitSystemWindows, requestFocus, requestFocus, requestFocusFromTouch, requestLayout, requestRectangleOnScreen, requestRectangleOnScreen, resetPaddingToInitialValues, resolveSize, resolveSizeAndState, restoreHierarchyState, saveHierarchyState, scheduleDrawable, scrollBy, scrollTo, sendAccessibilityEvent, sendAccessibilityEventUnchecked, setAccessibilityCursorPosition, setAccessibilityDelegate, setActivated, setAlpha, setAnimation, setBackground, setBackgroundColor, setBackgroundDrawable, setBackgroundResource, setBottom, setCameraDistance, setClickable, setContentDescription, setDisabledSystemUiVisibility, setDrawingCacheBackgroundColor, setDrawingCacheEnabled, setDrawingCacheQuality, setDuplicateParentStateEnabled, setEnabled, setFadingEdgeLength, setFilterTouchesWhenObscured, setFitsSystemWindows, setFocusable, setFocusableInTouchMode, setFrame, setHapticFeedbackEnabled, setHasTransientState, setHorizontalFadingEdgeEnabled, setHorizontalScrollBarEnabled, setHovered, setId, setImportantForAccessibility, setIsRootNamespace, setKeepScreenOn, setLabelFor, setLayerPaint, setLayerType, setLayoutDirection, setLayoutInsets, setLayoutParams, setLeft, setLongClickable, setMeasuredDimension, setMinimumHeight, setMinimumWidth, setNextFocusDownId, setNextFocusForwardId, setNextFocusLeftId, setNextFocusRightId, setNextFocusUpId, setOnClickListener, setOnCreateContextMenuListener, setOnDragListener, setOnFocusChangeListener, setOnGenericMotionListener, setOnHoverListener, setOnKeyListener, setOnLongClickListener, setOnSystemUiVisibilityChangeListener, setOnTouchListener, setOverScrollMode, setPadding, setPaddingRelative, setPivotX, setPivotY, setPressed, setRight, setRotation, setRotationX, setRotationY, setSaveEnabled, setSaveFromParentEnabled, setScaleX, setScaleY, setScrollBarDefaultDelayBeforeFade, setScrollBarFadeDuration, setScrollbarFadingEnabled, setScrollBarSize, setScrollBarStyle, setScrollContainer, setScrollX, setScrollY, setSelected, setSoundEffectsEnabled, setSystemUiVisibility, setTag, setTag, setTagInternal, setTextAlignment, setTextDirection, setTop, setTouchDelegate, setTranslationX, setTranslationY, setVerticalFadingEdgeEnabled, setVerticalScrollBarEnabled, setVerticalScrollbarPosition, setVisibility, setWillNotCacheDrawing, setWillNotDraw, setX, setY, showContextMenu, showContextMenu, startActionMode, startAnimation, startDrag, toString, unscheduleDrawable, unscheduleDrawable, verifyDrawable, willNotCacheDrawing, willNotDraw
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
createContextMenu, getParent, getParentForAccessibility, isLayoutRequested, requestFitSystemWindows, requestLayout
public static final int HORIZONTAL
public static final int VERTICAL
public static final int SHOW_DIVIDER_NONE
public static final int SHOW_DIVIDER_BEGINNING
public static final int SHOW_DIVIDER_MIDDLE
public static final int SHOW_DIVIDER_END
public LinearLayout(Context context)
public LinearLayout(Context context, AttributeSet attrs)
public LinearLayout(Context context, AttributeSet attrs, int defStyle)
public void setShowDividers(int showDividers)
showDividers
- One or more of SHOW_DIVIDER_BEGINNING
,
SHOW_DIVIDER_MIDDLE
, or SHOW_DIVIDER_END
,
or SHOW_DIVIDER_NONE
to show no dividers.public boolean shouldDelayChildPressedState()
ViewGroup
shouldDelayChildPressedState
in class ViewGroup
public int getShowDividers()
setShowDividers(int)
public Drawable getDividerDrawable()
setDividerDrawable(Drawable)
public void setDividerDrawable(Drawable divider)
divider
- Drawable that will divide each item.setShowDividers(int)
public void setDividerPadding(int padding)
padding
- Padding value in pixels that will be applied to each endsetShowDividers(int)
,
setDividerDrawable(Drawable)
,
getDividerPadding()
public int getDividerPadding()
public int getDividerWidth()
protected void onDraw(Canvas canvas)
View
public boolean isBaselineAligned()
Indicates whether widgets contained within this layout are aligned on their baseline or not.
public void setBaselineAligned(boolean baselineAligned)
Defines whether widgets contained in this layout are baseline-aligned or not.
baselineAligned
- true to align widgets on their baseline,
false otherwisepublic boolean isMeasureWithLargestChildEnabled()
public void setMeasureWithLargestChildEnabled(boolean enabled)
enabled
- True to measure children with a weight using the
minimum size of the largest child, false otherwise.public int getBaseline()
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.
getBaseline
in class View
public int getBaselineAlignedChildIndex()
public void setBaselineAlignedChildIndex(int i)
i
- The index of the child that will be used if this layout is
part of a larger layout that is baseline aligned.public float getWeightSum()
public void setWeightSum(float weightSum)
weightSum
- a number greater than 0.0f, or a number lower than or equals
to 0.0f if the weight sum should be computed from the children's
layout_weightprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
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 overriden 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 the superclass'
View.onMeasure(int, int)
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 View.onMeasure(int, int)
to provide better measurements of
their content.
If this method is overridden, it is the subclass's responsibility to make
sure the measured height and width are at least the view's minimum height
and width (View.getSuggestedMinimumHeight()
and
View.getSuggestedMinimumWidth()
).
onMeasure
in class View
widthMeasureSpec
- horizontal space requirements as imposed by the parent.
The requirements are encoded with
View.MeasureSpec
.heightMeasureSpec
- vertical space requirements as imposed by the parent.
The requirements are encoded with
View.MeasureSpec
.View.getMeasuredWidth()
,
View.getMeasuredHeight()
,
View.setMeasuredDimension(int, int)
,
View.getSuggestedMinimumHeight()
,
View.getSuggestedMinimumWidth()
,
View.MeasureSpec.getMode(int)
,
View.MeasureSpec.getSize(int)
protected boolean hasDividerBeforeChildAt(int childIndex)
childIndex
- Index of child to check for preceding dividerprotected void onLayout(boolean changed, int l, int t, int r, int b)
ViewGroup
public void setOrientation(int orientation)
orientation
- Pass HORIZONTAL or VERTICAL. Default
value is HORIZONTAL.public int getOrientation()
HORIZONTAL
or VERTICAL
public void setGravity(int gravity)
gravity
- See Gravity
public void setHorizontalGravity(int horizontalGravity)
public void setVerticalGravity(int verticalGravity)
public LinearLayout.LayoutParams generateLayoutParams(AttributeSet attrs)
ViewGroup
generateLayoutParams
in class ViewGroup
attrs
- the attributes to build the layout parameters fromViewGroup.LayoutParams
or one
of its descendantsprotected LinearLayout.LayoutParams generateDefaultLayoutParams()
ViewGroup.LayoutParams.MATCH_PARENT
and a height of ViewGroup.LayoutParams.WRAP_CONTENT
when the layout's orientation is VERTICAL
. When the orientation is
HORIZONTAL
, the width is set to ViewGroup.LayoutParams.WRAP_CONTENT
and the height to ViewGroup.LayoutParams.WRAP_CONTENT
.generateDefaultLayoutParams
in class ViewGroup
protected LinearLayout.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p)
ViewGroup
ViewGroup.checkLayoutParams(android.view.ViewGroup.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.generateLayoutParams
in class ViewGroup
p
- The layout parameters to convert into a suitable set of layout parameters
for this ViewGroup.ViewGroup.LayoutParams
or one
of its descendantsprotected boolean checkLayoutParams(ViewGroup.LayoutParams p)
ViewGroup
checkLayoutParams
in class ViewGroup
public void onInitializeAccessibilityEvent(AccessibilityEvent event)
View
AccessibilityEvent
with information about
this View which is the event source. In other words, the source of
an accessibility event is the view whose state change triggered firing
the event.
Example: Setting the password property of an event in addition to properties set by the super implementation:
public void onInitializeAccessibilityEvent(AccessibilityEvent event) { super.onInitializeAccessibilityEvent(event); event.setPassword(true); }
If an View.AccessibilityDelegate
has been specified via calling
View.setAccessibilityDelegate(AccessibilityDelegate)
its
View.AccessibilityDelegate.onInitializeAccessibilityEvent(View, AccessibilityEvent)
is responsible for handling this call.
Note: Always call the super implementation before adding information to the event, in case the default implementation has basic information to add.
onInitializeAccessibilityEvent
in class View
event
- The event to initialize.View.sendAccessibilityEvent(int)
,
View.dispatchPopulateAccessibilityEvent(AccessibilityEvent)
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info)
View
AccessibilityNodeInfo
with information about this view.
The base implementation sets:
AccessibilityNodeInfo.setParent(View)
,AccessibilityNodeInfo.setBoundsInParent(Rect)
,AccessibilityNodeInfo.setBoundsInScreen(Rect)
,AccessibilityNodeInfo.setPackageName(CharSequence)
,AccessibilityNodeInfo.setClassName(CharSequence)
,AccessibilityNodeInfo.setContentDescription(CharSequence)
,AccessibilityNodeInfo.setEnabled(boolean)
,AccessibilityNodeInfo.setClickable(boolean)
,AccessibilityNodeInfo.setFocusable(boolean)
,AccessibilityNodeInfo.setFocused(boolean)
,AccessibilityNodeInfo.setLongClickable(boolean)
,AccessibilityNodeInfo.setSelected(boolean)
,Subclasses should override this method, call the super implementation, and set additional attributes.
If an View.AccessibilityDelegate
has been specified via calling
View.setAccessibilityDelegate(AccessibilityDelegate)
its
View.AccessibilityDelegate.onInitializeAccessibilityNodeInfo(View, AccessibilityNodeInfo)
is responsible for handling this call.
onInitializeAccessibilityNodeInfo
in class View
info
- The instance to initialize.