Some property values for "Android" Android layout files

First Class: property value True or False

Android:layout_centerhrizontal Horizontal Center

Android:layout_centervertical Vertical Center

Android:layout_centerinparent is completely centered relative to the parent element

Android:layout_alignparentbottom snaps to the bottom edge of the parent element

Android:layout_alignparentleft snaps to the left edge of the parent element

Android:layout_alignparentright snaps to the right edge of the parent element

Android:layout_alignparenttop snaps to the top edge of the parent element

android:layout_alignwithparentifmissing if the corresponding sibling element cannot be found, then the parent element is the reference.

Android:layout_alignparentstart start close to parent element end position

Android:layout_alignparentend Close parent element End position

Android:animatelayoutchanges if the layout changes when there is an animation effect

Android:clipchildren defines whether a sub-layout must be within a defined area

Android:cliptopadding defines whether there is space between layouts

Android:animationcache Definition sub-layout also has animation effect

Android:alwaysdrawnwithcache defines whether a child layout applies a drawing's cache

Android:addstatesfromchildren define whether the layout applies a sub-layout background

Android:splitmotionevents define whether the layout passes touch events to child layouts

Android:focusableintouchmode defines if the focus can be acquired through touch

Android:isscrollcontainer defines whether a layout can be resized as a scroll container to adjust the entire form

Android:fadescrollbars scroll bar Auto-hide

Android:fitssystemwindows whether to consider system windows (such as status bar) when setting layout adjustments

Android:visibility define whether the layout is visible

Android:requiresfadingedge defines whether edges fade when scrolling

Android:clickable define whether you can click

Android:longclickable defines if a long click is possible

Android:saveenabled set whether the view data is saved when the window freezes (such as rotating the screen)

Whether the touch event is filtered when the android:filtertoucheswhenobscured window is obscured by other visible windows

Android:keepscreenon setting the screen to solid

Android:duplicateparentstate whether to get the drawing state from the parent container (cursor, press inferior)

android:soundeffectsenabled tap or touch to see if there is a sound effect

android:hapticfeedbackenabled Setting Tactile Feedback

Second class: The attribute value must be the reference name of the id "@id/idname"

Android:layout_alignbaseline the text of this element aligns with the parent element text

Android:layout_below at the bottom of an element

Android:layout_above at the top of an element

Android:layout_toleftof on the left side of an element

Android:layout_torightof on the right side of an element

Android:layout_tostartof This element starts with an element

Android:layout_toendof This element ends at an element

Android:layout_aligntop aligns the top edge of this element with the top edge of an element

Android:layout_alignleft aligns the left edge of this element with the left edge of an element

Android:layout_alignbottom aligns the bottom edge of this element with the bottom edge of an element

Android:layout_alignright aligns the right edge of this element with the right edge of an element

Android:layout_alignstart This element aligns with the beginning parent element

Android:layout_alignend This element aligns with the end parent element

Android:ignoregravity the specified element is not affected by gravity

Android:layoutanimation The animation that defines when the layout is displayed

Android:id adding IDs to layouts for easy search

Android:tag add tag for layout to find and similar

Android:scrollbarthumbhorizontal sets the drawable of the horizontal scroll bar.

Android:scrollbarthumbvertical Setting the drawable of the vertical scroll bar

Android:scrollbartrackhorizontal sets the color drawable of the horizontal scrollbar background (track)

Android:scrollbartrackvertical sets the color drawable of the vertical scrollbar background (track)

Android:scrollbaralwaysdrawhorizontaltrack set whether the horizontal scrollbar contains a track

Android:scrollbaralwaysdrawverticaltrack sets whether the vertical scrollbar contains a track

Android:nextfocusleft setting left specifies the view to get the next focus

Android:nextfocusright Setting the right side specifies the view to get the next focus

Android:nextfocusup setting the upper specified view to get the next focus

Android:nextfocusdown setting the specified view below to get the next focus

Android:nextfocusforward setting the specified view for the next focus

Android:contentdescription description

Android:onclick calls the specified method from the context when clicked

Class III: Attribute values are specific pixel values, such as 30DIP,40PX,50DP

Android:layout_width defines the width of this element

Android:layout_height defines the height of this element

Android:layout_margin the distance between the upper and lower left of this element

Android:layout_marginbottom distance from the bottom edge of an element

Android:layout_marginleft distance from the left edge of an element

Android:layout_marginright distance from the right edge of an element

Android:layout_margintop distance from the top edge of an element

Android:layout_marginstart the distance from the starting position in this element

Android:layout_marginend the distance from the end position in this element

Android:scrollx Horizontal Initial scrolling offset

android:scrolly Vertical Initial scrolling offset

Android:background background of this element

Android:padding specifying the spacing between layouts and sub-layouts

ANDROID:PADDINGLEFT Specifies the spacing between the left and child layouts of the layout

ANDROID:PADDINGTOP Specifies the spacing between the top of the layout and the child layout

android:paddingright Specifies the spacing between the right side of the layout and the child layout

Android:paddingbottom Specify the spacing between the bottom of the layout and the child layout

Android:paddingstart the spacing between the left and the child layout of the specified layout is the same as Android:paddingleft

Android:paddingend the spacing between the specified layout and the child layout is the same as Android:paddingright

Android:fadingedgelength setting the length of the border gradient

Android:minheight min. height

Android:minwidth min. width

Android:translationx moving distance in horizontal direction

Android:translationy movement distance in vertical direction

Android:transformpivotx deflection in the horizontal direction relative to a point

Android:transformpivoty deflection in the vertical direction relative to a point

class Fourth: Attribute values ask Android built-in values

Android:gravity how controls are laid out

Android:layout_gravity Layout method

Android:persistentdrawingcachehua defining the persistence of a drawing's cache

Android:descendantfocusability Control sub-layout focus get mode commonly used in ListView item contains multiple controls clicked invalid

Android:scrollbars to set the state of the scroll bar

Android:scrollbarstyle setting the style of the scroll bar

Android:fitssystemwindows whether to consider system windows (such as status bar) when setting layout adjustments

Android:scrollbarfadeduration Setting the scrollbar fade time

Android:scrollbardefaultdelaybeforefade sets the scrollbar to begin fading after n milliseconds, in milliseconds.

Android:scrollbarsize to set the scroll adjustment size

Android:fadingedge the gradient of the border when you set the pull scroll bar

Android:drawingcachequality to set translucent quality when drawing

Android:overscrollmode style when sliding to boundary

Android:alpha Setting transparency

Android:rotation Rotation degree

Android:rotationx Horizontal Rotation degree

Android:rotationy Vertical Rotation degree

Android:scalex setting X-axis Scaling

Android:scaley Setting the y-axis scaling

Android:verticalscrollbarposition the position of the vertical scroll bar of the camera

Android:layertype Setting support

Android:layoutdirection defining the orientation of layout sheets

Android:textdirection Defining Text Direction

Android:textalignment text Alignment

Android:importantforaccessibility important lines for setting up accessibility

Android:labelfor Adding tags