Files
NativeScript/tns-core-modules/ui/layouts/layout-base.android.ts
Hristo Hristov 0f14101238 recycling now happens only if nativeView and android properties are not accessed. (#4627)
recycleNativeView filed now accepts: "always" | "never" | "auto". Always will recycle the nativeView no matter if its nativeView or android proprties are accessed. Never will disable recycling. Auto will recycle it only if nativeView and android properties are not accessed.
2017-08-01 15:04:16 +03:00

55 lines
2.9 KiB
TypeScript

import {
LayoutBaseCommon, clipToBoundsProperty,
paddingLeftProperty, paddingTopProperty, paddingRightProperty, paddingBottomProperty, Length
} from "./layout-base-common";
export * from "./layout-base-common";
export class LayoutBase extends LayoutBaseCommon {
[clipToBoundsProperty.getDefault](): boolean {
return true;
}
[clipToBoundsProperty.setNative](value: boolean) {
// TODO: Use ClipRectangle if API > 16!
// We can't implement this without calling setClipChildren(false) on every ancestor up in the visual tree,
// which will kill performance. It will also lead to unwanted side effects such as other totally unrelated
// views being affected by setting the parents' setClipChildren to false.
// The problem in Android is that a ViewGroup either clips ALL of its children or it does not. Unlike iOS, the clipping
// cannot be controlled on a per view basis. So clipToBounds=false will have to be somehow achieved with stacking different
// views on top of one another in an AbsoluteLayout or GridLayout. There is always a workaround when playing with layouts.
//
// The following article explains this in detail:
// http://stackoverflow.com/questions/25044085/when-drawing-outside-the-view-clip-bounds-with-android-how-do-i-prevent-underli
console.warn(`clipToBounds with value false is not supported on Android. You can use this.android.getParent().setClipChildren(false) as an alternative`);
}
[paddingTopProperty.getDefault](): Length {
return { value: this._defaultPaddingTop, unit: "px" };
}
[paddingTopProperty.setNative](value: Length) {
org.nativescript.widgets.ViewHelper.setPaddingTop(this.nativeViewProtected, Length.toDevicePixels(value, 0) + Length.toDevicePixels(this.style.borderTopWidth, 0));
}
[paddingRightProperty.getDefault](): Length {
return { value: this._defaultPaddingRight, unit: "px" };
}
[paddingRightProperty.setNative](value: Length) {
org.nativescript.widgets.ViewHelper.setPaddingRight(this.nativeViewProtected, Length.toDevicePixels(value, 0) + Length.toDevicePixels(this.style.borderRightWidth, 0));
}
[paddingBottomProperty.getDefault](): Length {
return { value: this._defaultPaddingBottom, unit: "px" };
}
[paddingBottomProperty.setNative](value: Length) {
org.nativescript.widgets.ViewHelper.setPaddingBottom(this.nativeViewProtected, Length.toDevicePixels(value, 0) + Length.toDevicePixels(this.style.borderBottomWidth, 0));
}
[paddingLeftProperty.getDefault](): Length {
return { value: this._defaultPaddingLeft, unit: "px" };
}
[paddingLeftProperty.setNative](value: Length) {
org.nativescript.widgets.ViewHelper.setPaddingLeft(this.nativeViewProtected, Length.toDevicePixels(value, 0) + Length.toDevicePixels(this.style.borderLeftWidth, 0));
}
}