要實現Android原生功能調用,可以使用GoMobile工具來創建一個Android庫,并在Go代碼中調用該庫中的函數。以下是實現的步驟:
gomobile init -ndk /path/to/android/sdk/ndk-bundle
package main
import (
"fmt"
"gomobile.org/x/mobile/app"
"gomobile.org/x/mobile/event/lifecycle"
"gomobile.org/x/mobile/event/paint"
"gomobile.org/x/mobile/event/touch"
"gomobile.org/x/mobile/gl"
)
func main() {
app.Main(func(a app.App) {
var glctx gl.Context
for {
select {
case e := <-a.Events():
switch e := a.Filter(e).(type) {
case lifecycle.Event:
switch e.Crosses(lifecycle.StageVisible) {
case lifecycle.CrossOn:
glctx = e.DrawContext.(gl.Context)
onStart(glctx)
case lifecycle.CrossOff:
onStop()
glctx = nil
}
case paint.Event:
if glctx == nil || e.External {
continue
}
onDraw(glctx)
a.EndPaint(e)
case touch.Event:
if glctx == nil {
continue
}
onTouch(e)
}
}
}
})
}
gomobile bind -target=android
通過以上步驟,就可以實現在Go代碼中調用Android原生功能。