Returns a Scroller object.
For more information in the detailed docs see CreateScroller
Example - Example
function OnStart()
{
lay = app.CreateLayout( "Linear", "FillXY" );
scroll = app.CreateScroller( 1.0, 1.0 );
lay.AddChild( scroll );
layScroll = app.CreateLayout( "Linear", "Left" );
scroll.AddChild( layScroll );
img = app.CreateImage( "/Sys/Img/Hello.png", 2.0, 2.0 );
layScroll.AddChild( img );
app.AddLayout( lay );
}
The following methods are available on the Scroller object:
unknown
app object: app layout
AddChild
number: -180..180
number: -100..100
number: 100..100
number: 0..100
Adjust the visual color effect of the control by setting the Hue (by angle in degrees in a color circle), the saturation, brightness and contrast of the control.
Removes the focus of the control so that the user no longer has immediate access to it.
Set the focus to the control so that the user can interact with it immediately.
Get the absolute height of the control in pixels.
string: "" or "px"
Get the height of the control as screen height relative float or in pixels with the px option.
string: "" or "px"
Get the distance from the control to the left parent border as width relative float or in pixels with the px option.
Returns the parent control object where the object was added to - commonly a layout.
number
string: "screen", "px"
Returns data about the position and size of the control.
If the screen option is given the position on the screen will be returned. Otherwise relative to the parent control.
The px options turns the relative values into pixels.
GetScrollX
GetScrollY
string: "" or "px"
Get the distance from the control to the upper parent border as height relative float or in pixels with the px option.
Returns the control class name.
Returns the current visibility state of the control. The Values are:
Show: visible
Hide: invisible but still consuming space
Gone: invisible and not consuming space
Hides the control without consuming any more layout space as if it were never there.
Returns whether the control is currently useable by the user.
app object
number: fraction of screen width
Returns whether the control overlaps with another by a given distance.
Returns whether the control is currently visible to the user, ignoring overlaying controls.
string
string: comma separated: "boolean", "char", "byte", "short", "int", "long", "float", "double"
Allows access to other functions defined on the object in Java via reflection.
number: fraction of object width
add x and y value to current scroll position
override scroll position
number: 0..0.99 or 1..256
Set the transparency of the background by an alpha value between 0 (no transparency) and 0.99 (full transparent) or 1 (no transparency) and 256 (full transparent)
string:
hexadecimal: "#rrggbb", "#aarrggbb"
colourName: "red", "green", ...
Changes the background color of the control.
string: "left-right" or "right-left" or "top-bottom" or "bottom-top"
Define the background color of the control with a gradient. The default gradient direction is from top to bottom, but you can change it from left to right and the reversed versions of course.
number: fraction of screen height
Define a radial color gradient for the background of control.
string: path to file or folder ( "/absolute/..." or "relative/..." )
string: "repeat"
Changes the background to an image which can be repeated using the repeat option.
An image which is often used with that option is '/res/drawable/pattern_carbon' - try it out!
string: "Add" or "Multiply" or "clear" or "darken" or "lighten" or "overlay" or "screen" or "xor" or "src_in" or "src_out" or "src_atop" or "src_over" or "dst_in" or "dst_out" or "dst_atop" or "dst_over"
Adjust the visual color effect with a colour and a given BlendMode. More information about BlendMode can be foind in the
Android Developer page.
boolean
En/Disable the control physically and visually so that the user can/can not access the control. Events like OnTouch will still be fired.
string: "" or "px" or "sp" or "dip" or "mm" or "pt"
Define a distance to other controls on each side of the control.
string: "" or "px" or "sp" or "dip" or "mm" or "pt"
Define distances that elements within the control are to maintain from the control borders.
string: "" or "px"
Defines the position and size for the control if the parent is an absolute layout.
number: factor
Scales the control along with its contents by the factors passed to the function.
string: "" or "spx"
Change the size of the control in either screen relative values or in pixels if the px option was given.
string: "Show" or "Hide" or "Gone"
Change the visibility of the control to one of the available modes:
Show: visible
Hide: invisible but still consuming space
Gone: invisible and not consuming space
Set the visibility of the control to "Show".
object: {
x,
y,
sw,
sh,
rot}
number: milliseconds
string: "Linear.None" or "Quadratic.In/Out" or "Cubic.In/Out" or "Quartic.In/Out" or "Quintic.In/Out" or "Sinusoidal.In/Out" or "Exponential.In/Out" or "Circular.In/Out" or "Elastic.In/Out" or "Back.In/Out" or "Bounce.In/Out"
number: integer
function()
Performs an animation on the control.
The target object is for the position, size and rotation that the control has at the end of the animation.
The type specifies the behavior and the speed of the animation. Separated by a dot, you must also specify whether you want to apply this behavior to the beginning (In), end (Out), or to both (InOut) times of the animation.
With the amount of repeats you can control how many times you want to play the animation.
If you have jojo activated, the animation will alternate between forward and backward playback, so that if the repetition value is odd, the control will be at the start position again at the end of the animation.
Finally the callback function will be called after the animation has finished. Well, it's about time!