Java android.widget LinearLayout fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for android.widget LinearLayout.

The text is from its open source code.

Subclass

android.widget.LinearLayout has subclasses.
Click this link to see all its subclasses.

Field

int	HORIZONTAL
int	VERTICAL
int	SHOW_DIVIDER_NONE Don't show any dividers.
int	SHOW_DIVIDER_BEGINNING Show a divider at the beginning of the group.
int	SHOW_DIVIDER_MIDDLE Show dividers between each item in the group.
int	SHOW_DIVIDER_END Show a divider at the end of the group.

Constructor

	LinearLayout(Context context)
	LinearLayout(Context context, @Nullable AttributeSet attrs)

Method

void	addView(View child) Adds a child view.
void	addView(View child, int index) Adds a child view.
void	addView(View child, int width, int height) Adds a child view with this ViewGroup's default layout parameters and the specified width and height.
ViewPropertyAnimator	animate() This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View.
void	bringToFront() Change the view's z order in the tree, so it's on top of other sibling views.
void	buildDrawingCache() Calling this method is equivalent to calling `buildDrawingCache(false)`.
void	draw(Canvas canvas) Manually render this view (and all of its children) to the given Canvas.
T	findViewById(@IdRes int id) Finds the first descendant view with the given ID, the view itself if the ID matches #getId() , or null if the ID is invalid (< 0) or there is no matching view in the hierarchy.
T	findViewWithTag(Object tag) Look for a child view with the given tag.
Drawable	getBackground() Gets the background drawable
int	getBottom() Bottom position of this view relative to its parent.
View	getChildAt(int index) Returns the view at the specified position in the group.
int	getChildCount() Returns the number of children in the group.
Context	getContext() Returns the context the view is running in, through which it can access the current theme, resources, etc.
int	getDividerPadding() Get the padding size used to inset dividers in pixels
Bitmap	getDrawingCache() Calling this method is equivalent to calling `getDrawingCache(false)`.
int	getHeight() Return the height of your view.
int	getId() Returns this view's identifier.
ViewGroup.LayoutParams	getLayoutParams() Get the LayoutParams associated with this view.
int	getLeft() Left position of this view relative to its parent.
int	getMeasuredHeight() Like #getMeasuredHeightAndState() , but only returns the raw height component (that is the result is masked by #MEASURED_SIZE_MASK ).
int	getMeasuredWidth() Like #getMeasuredWidthAndState() , but only returns the raw width component (that is the result is masked by #MEASURED_SIZE_MASK ).
int	getMinimumWidth() Returns the minimum width of the view.
int	getOrientation() Returns the current orientation.
int	getPaddingBottom() Returns the bottom padding of this view.
int	getPaddingLeft() Returns the left padding of this view.
int	getPaddingRight() Returns the right padding of this view.
int	getPaddingTop() Returns the top padding of this view.
ViewParent	getParent() Gets the parent of this view.
Resources	getResources() Returns the resources associated with this view.
int	getRight() Right position of this view relative to its parent.
View	getRootView() Finds the topmost view in the current view hierarchy.
Object	getTag() Returns this view's tag.
int	getTop() Top position of this view relative to its parent.
float	getTranslationY() The vertical location of this view relative to its #getTop() top position.
ViewTreeObserver	getViewTreeObserver() Returns the ViewTreeObserver for this view's hierarchy.
int	getVisibility() Returns the visibility status for this view.
int	getWidth() Return the width of your view.
float	getY() The visual y position of this view, in pixels.
int	indexOfChild(View child) Returns the position in the group of the specified child view.
void	invalidate() Invalidate the whole view.
boolean	isEnabled() Returns the enabled status for this view.
void	layout(int l, int t, int r, int b)
void	measure(int widthMeasureSpec, int heightMeasureSpec) This is called to find out how big a view should be.
boolean	performClick() Call this view's OnClickListener, if it is defined.
boolean	post(Runnable action) Causes the Runnable to be added to the message queue.
void	removeAllViews() Call this method to remove all child views from the ViewGroup.
void	removeAllViewsInLayout() Called by a ViewGroup subclass to remove child views from itself, when it must first know its size on screen before it can calculate how many child views it will render.
void	removeView(View view) Note: do not invoke this method from #draw(android.graphics.Canvas) , #onDraw(android.graphics.Canvas) , #dispatchDraw(android.graphics.Canvas) or any related method.
void	removeViewAt(int index) Removes the view at the specified position in the group.
void	removeViews(int start, int count) Removes the specified range of views from the group.
boolean	requestFocus() Call this to try to give focus to a specific view or to one of its descendants.
void	requestLayout() Call this when something has changed which has invalidated the layout of this view.
void	setAlpha(@FloatRange(from = 0.0, to = 1.0) float alpha) Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque.
void	setAnimation(Animation animation) Sets the next animation to play for this view.
void	setBackground(Drawable background) Set the background to a given Drawable, or remove the background.
void	setBackgroundColor(@ColorInt int color) Sets the background color for this view.
void	setBackgroundDrawable(Drawable background)
void	setBackgroundResource(@DrawableRes int resid) Set the background to a given resource.
void	setBaselineAligned(boolean baselineAligned) Defines whether widgets contained in this layout are baseline-aligned or not.
void	setClickable(boolean clickable) Enables or disables click events for this view.
void	setClipChildren(boolean clipChildren) By default, children are clipped to their bounds before drawing.
void	setClipToPadding(boolean clipToPadding) 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.
void	setDescendantFocusability(int focusability) Set the descendant focusability of this view group.
void	setDividerDrawable(Drawable divider) Set a drawable to be used as a divider between items.
void	setDrawingCacheEnabled(boolean enabled) Enables or disables the drawing cache.
void	setElevation(float elevation) Sets the base elevation of this view, in pixels.
void	setEnabled(boolean enabled) Set the enabled state of this view.
void	setFocusable(boolean focusable) Set whether this view can receive the focus.
void	setFocusableInTouchMode(boolean focusableInTouchMode) Set whether this view can receive focus while in touch mode.
void	setGravity(int gravity) Describes how the child views are positioned.
void	setId(@IdRes int id) Sets the identifier for this view.
void	setLayoutParams(ViewGroup.LayoutParams params) Set the layout parameters associated with this view.
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	setMinimumHeight(int minHeight) Sets the minimum height of the view.
void	setMinimumWidth(int minWidth) Sets the minimum width of the view.
void	setMotionEventSplittingEnabled(boolean split) Enable or disable the splitting of MotionEvents to multiple children during touch event dispatch.
void	setNestedScrollingEnabled(boolean enabled) Enable or disable nested scrolling for this view.
void	setNextFocusUpId(int nextFocusUpId) Sets the id of the view to use when the next focus is #FOCUS_UP .
void	setOnClickListener(@Nullable OnClickListener l) Register a callback to be invoked when this view is clicked.
void	setOnDragListener(OnDragListener l) Register a drag event listener callback object for this View.
void	setOnFocusChangeListener(OnFocusChangeListener l) Register a callback to be invoked when focus of this view changed.
void	setOnGenericMotionListener(OnGenericMotionListener l) Register a callback to be invoked when a generic motion event is sent to this view.
void	setOnHoverListener(OnHoverListener l) Register a callback to be invoked when a hover event is sent to this view.
void	setOnKeyListener(OnKeyListener l) Register a callback to be invoked when a hardware key is pressed in this view.
void	setOnLongClickListener(@Nullable OnLongClickListener l) Register a callback to be invoked when this view is clicked and held.
void	setOnTouchListener(OnTouchListener l) Register a callback to be invoked when a touch event is sent to this view.
void	setOrientation(@OrientationMode int orientation) Should the layout be a column or a row.
void	setPadding(int left, int top, int right, int bottom) Sets the padding.
void	setPressed(boolean pressed) Sets the pressed state for this view.
void	setShowDividers(@DividerMode int showDividers) Set how dividers should be shown between items in this layout
void	setTag(final Object tag) Sets the tag associated with this view.
void	setTranslationY(float translationY) Sets the vertical location of this view relative to its #getTop() top position.
void	setVerticalGravity(int verticalGravity)
void	setVerticalScrollBarEnabled(boolean verticalScrollBarEnabled) Define whether the vertical scrollbar should be drawn or not.
void	setVisibility(@Visibility int visibility) Set the visibility state of this view.
void	setWeightSum(float weightSum) Defines the desired weights sum.
void	setX(float x) Sets the visual x position of this view, in pixels.
void	setY(float y) Sets the visual y position of this view, in pixels.
void	startAnimation(Animation animation) Start the specified animation now.
boolean	startDrag(ClipData data, DragShadowBuilder shadowBuilder, Object myLocalState, int flags)