40 lines
886 B
Go
40 lines
886 B
Go
|
//go:generate javac -bootclasspath $ANDROID_HOME/platforms/android-29/android.jar AClass.java
|
||
|
|
//go:generate jar cf AClass.jar AClass.class
|
||
|
|
//go:generate rm AClass.class
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"log"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"gioui.org/app"
|
||
|
|
)
|
||
|
|
|
||
|
|
func callJni() {
|
||
|
|
time.Sleep(time.Second/5)
|
||
|
|
h := app.PlatformHandle()
|
||
|
|
labchan <- fmt.Sprintf("JVM = %d", h.JVM)
|
||
|
|
labchan <- fmt.Sprintf("Context = %d", h.Context)
|
||
|
|
SetJVM(h.JVM, h.Context)
|
||
|
|
|
||
|
|
RunInJVM(func(env *JNIEnv) {
|
||
|
|
log.Print("finding class")
|
||
|
|
cls := FindClass(env, "st/wow/git/jni/AClass")
|
||
|
|
log.Print("getting methodID")
|
||
|
|
mth := JniGetMethodID(env, cls, "Num", "()I")
|
||
|
|
if mth == nil {
|
||
|
|
labchan <- "nil method"
|
||
|
|
return
|
||
|
|
}
|
||
|
|
log.Print("creating object")
|
||
|
|
inst := CreateObject(env, cls)
|
||
|
|
log.Print("calling method")
|
||
|
|
val := JniCallIntMethod(env, inst, mth)
|
||
|
|
log.Print("got result")
|
||
|
|
labchan <- fmt.Sprintf("val = %d", val)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|