View flag indicating no matter if this view ought to have haptic feed-back enabled for events like prolonged presses.
Compute the vertical extent of your vertical scrollbar's thumb throughout the vertical vary. int computeVerticalScrollOffset()
A hardware layer can be employed to cache a posh view tree into a texture and decrease the complexity of drawing operations. For instance, when animating a fancy view tree with a translation, a components layer can be employed to render the view tree just once.
Returns the overlay for this view, building it if it doesn't however exist. Including drawables to your overlay will cause them for being exhibited Anytime the view by itself is redrawn. Objects during the overlay need to be actively managed: take out them when they should not be shown any more.
Be aware about auto scaling in compatibility manner: When automobile scaling is not enabled, this technique will produce a bitmap of the same sizing as this view. Due to the fact this bitmap will probably be drawn scaled via the mum or dad ViewGroup, the result on display screen may well demonstrate scaling artifacts.
A structure that arranges other views possibly horizontally in only one column or vertically in only one row. ListView
Structure is often a two move method: a measure go and also a format pass. The measuring pass is executed in evaluate(int, int) which is a prime-down traversal on the view tree. Each and every view pushes dimension specs down the tree throughout the recursion. At the end of the evaluate move, just about every view has saved its measurements. The 2nd pass takes place in format(int, int, int, int) and is likewise leading-down. During this move Each and every father or mother is responsible for positioning all of its little ones using the dimensions computed while in the measure go. Whenever a view's evaluate() strategy returns, its getMeasuredWidth() and getMeasuredHeight() values should be established, together with Those people for all of that view's descendants. A view's calculated width and measured top values need to respect the constraints imposed because of the view's dad and mom. This guarantees that at the conclusion of the measure go, all mother and father settle for all of their kid's measurements. A parent view may possibly call measure() much more than when on its small children. For instance, the guardian may measure Just about every child when with unspecified Proportions to find out how huge they wish to be, then call measure() on them yet again with precise numbers If your sum of all the children's unconstrained measurements is simply too big or way too compact. The measure move takes advantage of two classes to communicate Proportions. The MeasureSpec course is used by views to inform their mom and dad how they want to be measured and positioned.
Identify of the method On this View's context to invoke in the event the view is clicked. android:outlineAmbientShadowColor
This technique was deprecated in API amount 28. The view drawing cache was largely produced obsolete With all the introduction of hardware-accelerated rendering in API 11. With components-acceleration, intermediate cache levels are mainly avoidable and can certainly result in a net loss in performance because of the cost of making and updating the layer. Inside the uncommon circumstances the place caching levels are valuable, for instance for alpha animations, setLayerType(int, android.graphics.
Dispatch onFinishTemporaryDetach() to this View and its direct small children if this can be a container View. When you override this method you should
View.OnContextClickListener Interface definition for your callback to get invoked click here each time a view is context clicked. interface}