android: using ActivityGroup to embed activities

Yes, you’d implement an ActivityGroup, which will be the container of your other Activities. When the user clicks one of the buttons, you’d get a reference to the LocalActivityManager, and use it to start, and embed the inner activity. Something like this: LocalActivityManager mgr = getLocalActivityManager(); Intent i = new Intent(this, SomeActivity.class); Window w = … Read more

Can embedded struct method have knowledge of parent/child?

This is something not possible. To better understand why, see this slightly modified version of your example: type B struct{} func (b *B) Validate() { fmt.Printf(“b:%p\n”, b) } type A struct { *B } func main() { b := B{} a1 := A{&b} a2 := A{&b} a1.Validate() a2.Validate() a1.B.Validate() a2.B.Validate() b.Validate() } Output as expected, … Read more

Embed SVG in SVG?

Use the image element and reference your SVG file. For fun, save the following as recursion.svg: <svg width=”100%” height=”100%” viewBox=”-100 -100 200 200″ version=”1.1″ xmlns=”http://www.w3.org/2000/svg”> <circle cx=”-50″ cy=”-50″ r=”30″ style=”fill:red” /> <image x=”10″ y=”20″ width=”80″ height=”80″ href=”recursion.svg” /> </svg>

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