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Bump gio version. Add examples/fragment

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This commit is contained in:
Greg 2020-06-19 14:08:20 -04:00
parent 267e2e1c33
commit 1e65963bd4
10 changed files with 308 additions and 14 deletions
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4
examples/dex/main.go
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@ -55,6 +55,7 @@ func eventloop() {
for { select {
case x := <-labchan:
labels = append(labels, material.Body1(th, x))
w.Invalidate()
case e := <-w.Events():
switch e := e.(type) {
case system.DestroyEvent:
@ -71,5 +72,6 @@ func eventloop() {
})
e.Frame(gtx.Ops)
}
}}
}
}
}

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examples/fragment/AFrag.jar Normal file
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27
examples/fragment/AFrag.java Normal file
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@ -0,0 +1,27 @@
package st.wow.git.fragment;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.content.Context;
import android.util.Log;
import android.view.View;
public class AFrag extends Fragment {
@Override public void onAttach(Context ctx) {
Log.d("AFrag", "onAttach()");
super.onAttach(ctx);
}
public void register(View view) {
Log.d("AFrag", "register(): view = " + view.getClass().getCanonicalName());
Log.d("AFrag", "register(): Adding fragment");
Activity act = (Activity)view.getContext();
Log.d("AFrag", "register(): starting transaction");
FragmentTransaction ft = act.getFragmentManager().beginTransaction();
Log.d("AFrag", "register(): add this");
ft.add(this, "AFrag");
Log.d("AFrag", "register(): commit");
ft.commitNow();
}
}

138
examples/fragment/jni_android.go Normal file
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@ -0,0 +1,138 @@
package main
/*
#cgo LDFLAGS: -landroid
#include <stdlib.h>
#include <jni.h>
#include <android/log.h>
static jobject gClassLoader;
static jmethodID gFindClassMethod;
void
SetLoader(JNIEnv* env, jobject context) {
jclass cclass = (*env)->GetObjectClass(env, context);
jmethodID gcl_id = (*env)->GetMethodID(env, cclass, "getClassLoader", "()Ljava/lang/ClassLoader;");
jobject loader = (*env)->CallObjectMethod(env, context, gcl_id);
gClassLoader = (*env)->NewGlobalRef(env, loader);
jclass lclass = (*env)->GetObjectClass(env, loader);
gFindClassMethod = (*env)->GetMethodID(env, lclass, "findClass", "(Ljava/lang/String;)Ljava/lang/Class;");
}
jclass
FindClass(JNIEnv* env, char* name) {
jstring strClassName = (*env)->NewStringUTF(env, name);
return (*env)->CallObjectMethod(env, gClassLoader, gFindClassMethod, strClassName);
}
JNIEXPORT jobject
CreateObject(JNIEnv* env, jclass cls) {
jmethodID init = (*env)->GetMethodID(env, cls, "<init>", "()V");
return (*env)->NewObject(env, cls, init);
}
void CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID) {
(*env)->CallVoidMethod(env, obj, methodID);
}
void CallVoidMethod1(JNIEnv *env, jobject obj, jmethodID methodID, jobject param) {
(*env)->CallVoidMethod(env, obj, methodID, param);
}
jint CallIntMethod(JNIEnv *env, jobject obj, jmethodID methodID) {
return (*env)->CallIntMethod(env, obj, methodID);
}
jmethodID GetMethodID(JNIEnv *env, jclass clazz, const char *name, const char *sig) {
return (*env)->GetMethodID(env, clazz, name, sig);
}
jint GetEnv(JavaVM *vm, JNIEnv **env, jint version) {
return (*vm)->GetEnv(vm, (void **)env, version);
}
jint AttachCurrentThread(JavaVM *vm, JNIEnv **p_env, void *thr_args) {
return (*vm)->AttachCurrentThread(vm, p_env, thr_args);
}
jint DetachCurrentThread(JavaVM *vm) {
return (*vm)->DetachCurrentThread(vm);
}
*/
import "C"
import (
"errors"
"fmt"
"log"
"runtime"
"unsafe"
)
var theJVM *C.JavaVM
type JNIEnv = C.JNIEnv
func SetJVM(jvm, context uintptr) {
log.Print("set theJVM")
theJVM = (*C.JavaVM)(unsafe.Pointer(jvm))
log.Printf("theJVM = %d", uintptr(unsafe.Pointer(theJVM)))
RunInJVM(func(env *C.JNIEnv) {
C.SetLoader(env, (C.jobject)(context))
})
}
func FindClass(env *C.JNIEnv, name string) C.jclass {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
return C.FindClass((*C.JNIEnv)(env), cname)
}
func JniCallVoidMethod(env *C.JNIEnv, obj C.jobject, methodID C.jmethodID) {
C.CallVoidMethod(env, obj, methodID)
}
func JniCallVoidMethod1(env *C.JNIEnv, obj C.jobject, methodID C.jmethodID, param uintptr) {
C.CallVoidMethod1(env, obj, methodID, (C.jobject)(unsafe.Pointer(param)))
}
func JniCallIntMethod(env *C.JNIEnv, obj C.jobject, methodID C.jmethodID) int {
return (int)(C.CallIntMethod(env, obj, methodID))
}
func JniGetMethodID(env *C.JNIEnv, cls C.jclass, name, sig string) C.jmethodID {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
csig := C.CString(sig)
defer C.free(unsafe.Pointer(csig))
return C.GetMethodID(env, cls, cname, csig)
}
func CreateObject(env *C.JNIEnv, cls C.jclass) C.jobject {
return C.CreateObject(env, (C.jclass)(cls))
}
func RunInJVM(f func(env *C.JNIEnv)) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var env *C.JNIEnv
var detach bool
log.Printf("RunInJVM(): theJVM = %d", uintptr(unsafe.Pointer(theJVM)))
if res := C.GetEnv(theJVM, &env, C.JNI_VERSION_1_6); res != C.JNI_OK {
if res != C.JNI_EDETACHED {
panic(fmt.Errorf("JNI GetEnv failed with error %d", res))
}
if C.AttachCurrentThread(theJVM, &env, nil) != C.JNI_OK {
panic(errors.New("runInJVM: AttachCurrentThread failed"))
}
detach = true
}
if detach {
defer func() {
C.DetachCurrentThread(theJVM)
}()
}
f(env)
}

79
examples/fragment/main.go Normal file
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@ -0,0 +1,79 @@
// +build darwin linux
package main
import (
"log"
"gioui.org/app"
"gioui.org/io/system"
"gioui.org/layout"
"gioui.org/op"
"gioui.org/unit"
"gioui.org/widget/material"
"gioui.org/font/gofont"
)
var (
labchan chan string
)
type (
D = layout.Dimensions
C = layout.Context
)
func main() {
labchan = make(chan string)
log.Print("Staring event loop")
go eventloop()
app.Main()
log.Print("app.Main() returned")
}
func eventloop() {
w := app.NewWindow(
app.Size(unit.Dp(400), unit.Dp(400)),
app.Title("Hello"))
th := material.NewTheme(gofont.Collection())
var ops op.Ops
sysinset := &layout.Inset{}
margin := layout.UniformInset(unit.Dp(10))
labels := []material.LabelStyle{}
list := &layout.List{Axis: layout.Vertical}
resetSysinset := func(x system.Insets) {
sysinset.Top = x.Top
sysinset.Bottom = x.Bottom
sysinset.Left = x.Left
sysinset.Right = x.Right
}
go func() {
labchan <- "Starting"
registerFragment(w)
}()
for {
select {
case x := <-labchan:
labels = append(labels, material.Body1(th, x))
case e := <-w.Events():
switch e := e.(type) {
case system.DestroyEvent:
return
case system.FrameEvent:
gtx := layout.NewContext(&ops, e)
resetSysinset(e.Insets)
sysinset.Layout(gtx, func(gtx C) D {
return margin.Layout(gtx, func(gtx C) D {
return list.Layout(gtx, len(labels), func(gtx C, i int) D {
return labels[i].Layout(gtx)
})
})
})
e.Frame(gtx.Ops)
}
}
}
}

35
examples/fragment/os_android.go Normal file
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@ -0,0 +1,35 @@
//go:generate javac -bootclasspath $ANDROID_HOME/platforms/android-29/android.jar AFrag.java
//go:generate jar cf AFrag.jar AFrag.class
//go:generate rm AFrag.class
package main
import (
"log"
"gioui.org/app"
)
func registerFragment(w *app.Window) {
labchan <- "registerFragment()"
SetJVM(app.JavaVM(), app.AppContext())
w.Do(func(view uintptr) {
RunInJVM(func(env *JNIEnv) {
log.Print("finding class")
cls := FindClass(env, "st/wow/git/fragment/AFrag")
log.Print("getting methodID")
mth := JniGetMethodID(env, cls, "register", "(Landroid/view/View;)V");
if mth == nil {
labchan <- "nil method"
return
}
log.Print("creating object")
inst := CreateObject(env, cls)
log.Print("calling method")
JniCallVoidMethod1(env, inst, mth, view)
log.Print("got result")
})
})
}

8
examples/fragment/os_other.go Normal file
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@ -0,0 +1,8 @@
// +build !android
package main
func registerFragment() {
labchan <- "nothing to do"
}

1
examples/jni/main.go
View File

@ -58,6 +58,7 @@ func eventloop() {
select {
case x := <-labchan:
labels = append(labels, material.Body1(th, x))
w.Invalidate()
case e := <-w.Events():
switch e := e.(type) {
case system.DestroyEvent:

2
go.mod
View File

@ -2,4 +2,4 @@ module git.wow.st/gmp/android-go
go 1.14
require gioui.org v0.0.0-20200611133933-6d5fbcba3f21
require gioui.org v0.0.0-20200619121558-88ced59dad93

4
go.sum
View File

@ -5,6 +5,8 @@ gioui.org v0.0.0-20191112235626-1bf2c7ef293c h1:jhUehzf6xTCgEewbJyjd+WE2Kq5pvPIx
gioui.org v0.0.0-20191112235626-1bf2c7ef293c/go.mod h1:KqFFi2Dq5gYA3FJ0sDOt8OBXoMsuxMtE8v2f0JExXAY=
gioui.org v0.0.0-20200611133933-6d5fbcba3f21 h1:VFB+0QxUPABMgEarfyJeHQvUNc++9TASnDVXcFgxLcA=
gioui.org v0.0.0-20200611133933-6d5fbcba3f21/go.mod h1:AHI9rFr6AEEHCb8EPVtb/p5M+NMJRKH58IOp8O3Je04=
gioui.org v0.0.0-20200619121558-88ced59dad93 h1:Llh4Tigdbu++FrRXL/KzqDHnH2Q5LPmAEk0djh6NLwk=
gioui.org v0.0.0-20200619121558-88ced59dad93/go.mod h1:jiUwifN9cRl/zmco43aAqh0aV+s9GbhG13KcD+gEpkU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@ -15,6 +17,8 @@ golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3/go.mod h1:NOZ3BPKG0ec/BKJQgn
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
golang.org/x/image v0.0.0-20190802002840-cff245a6509b h1:+qEpEAPhDZ1o0x3tHzZTQDArnOixOzGD9HUJfcg0mb4=
golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
golang.org/x/image v0.0.0-20200618115811-c13761719519 h1:1e2ufUJNM3lCHEY5jIgac/7UTjd6cgJNdatjPdFWf34=
golang.org/x/image v0.0.0-20200618115811-c13761719519/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=