Update Gio version. Working Android implementation.

PgpConnect.java

@@ -31,43 +31,30 @@ import android.Manifest;
 import android.content.pm.PackageManager;
 
 public class PgpConnect extends Fragment {
-	Activity act;
 	Context ctx;
 	Handler handler;
-	OpenPgpServiceConnection mServiceConnection;
 	ClipboardManager cb;
+	OpenPgpServiceConnection mServiceConnection;
 	final int PERMISSIONS_REQUEST = 1;
 
-	public PgpConnect(Activity act) {
+	public PgpConnect() {
-		Log.d("gio", "PgpConnect(Activity)");
+		Log.d("gio", "PgpConnect()");
-		act = act;
-		ctx = act.getApplicationContext();
-		this.handler = new Handler(ctx.getMainLooper());
-
-		final FragmentManager fm = act.getFragmentManager();
-		final Fragment frag = this;
-		handler.post(new Runnable() {
-			public void run() {
-				Log.d("gio", "PgpConnect(): adding fragment");
-				FragmentTransaction ft = fm.beginTransaction();
-				ft.add(frag, "PgpConnect");
-				ft.commitNow();
-
-				if (ctx.checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED || ctx.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
-					requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSIONS_REQUEST);
-				}
-			}
-		});
 	}
 
 	@Override public void onAttach(Context ctx) {
 		super.onAttach(ctx);
 		Log.d("gio", "onAttach()");
+		if (ctx instanceof Activity) {
+			Log.d("gio", "It's an Activity!");
+		}
 		this.ctx = ctx;
 		this.handler = new Handler(ctx.getMainLooper());
 		mServiceConnection = new OpenPgpServiceConnection(ctx, "org.sufficientlysecure.keychain");
 		mServiceConnection.bindToService();
 		cb = (ClipboardManager) ctx.getSystemService(Context.CLIPBOARD_SERVICE);
+		if (ctx.checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED || ctx.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+			requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSIONS_REQUEST);
+		}
 		installComplete(this);
 	}
 
@@ -84,7 +71,6 @@ public class PgpConnect extends Fragment {
 	@Override public void onActivityResult(int requestCode, int resultCode, Intent data) {
 		Log.d("gio", "onActivityResult(" + requestCode + "): " + resultCode);
 		super.onActivityResult(requestCode, resultCode, data);
-		//activityResult(requestCode, resultCode);
 		if (resultCode != Activity.RESULT_OK) {
 			Log.d("gio", "onActivityResult: not OK");
 			stringResult(requestCode, null);
@@ -291,6 +277,5 @@ public class PgpConnect extends Fragment {
 	}
 
 	static private native void installComplete(PgpConnect p);
-	static private native void activityResult(int requestCode, int resultCode);
 	static private native void stringResult(int requestCode, String result);
 }

cmd/passgo-gui/main.go

@@ -196,6 +196,7 @@ func eventLoop() {
 	w := app.NewWindow(
 		app.Size(unit.Dp(250), unit.Dp(500)),
 		app.Title("passgo"))
+	initPgp(w)
 	gtx := &layout.Context{Queue: w.Queue()}
 	//time.Sleep(time.Second/5)
 
@@ -388,7 +389,6 @@ func eventLoop() {
 				w.Invalidate()
 				page = idPage
 			default:
-				gtx.Constraints.Width.Min = gtx.Constraints.Width.Max
 				lst.Layout(gtx, len(passBtns), func(i int) {
 					btn := passBtns[i]
 					gtx.Constraints.Width.Min = gtx.Constraints.Width.Max
@@ -827,11 +827,10 @@ func eventLoop() {
 				return
 			case system.StageEvent:
 				if e.Stage == system.StageRunning {
-					initPgp(w)
-				}
 					go func() {
 						updateIdBtns()
 					}()
+				}
 			case system.FrameEvent:
 				gtx.Reset(e.Config, e.Size)
 

cmd/passgo-gui/ui.go

@@ -41,7 +41,7 @@ func (b *Overlay) Layout(gtx *layout.Context) {
 			ins.Layout(gtx, func() {
 				l.Layout(gtx)
 			})
-			pointer.RectAreaOp{image.Rect(0, 0, gtx.Dimensions.Size.X, gtx.Dimensions.Size.Y)}.Add(gtx.Ops)
+			pointer.Rect(image.Rect(0, 0, gtx.Dimensions.Size.X, gtx.Dimensions.Size.Y)).Add(gtx.Ops)
 		})
 		c1 := st.Expand(gtx, func() {
 			layoutRRect(b.Background, gtx)
@@ -74,13 +74,15 @@ func layoutRRect(col color.RGBA, gtx *layout.Context) {
 			f32.Point{0, 0},
 			f32.Point{w, h},
 		}
-	clip.RoundRect(gtx.Ops, rect, r, r, r, r)
+	//clip.RoundRect(gtx.Ops, rect, r, r, r, r)
+	clip.Rect{Rect: rect, NE: r, NW: r, SE: r, SW: r}.Op(gtx.Ops).Add(gtx.Ops)
 	paint.ColorOp{Color: col}.Add(gtx.Ops)
 	paint.PaintOp{Rect: f32.Rectangle{Max: f32.Point{X: w, Y: h}}}.Add(gtx.Ops)
 	gtx.Dimensions = layout.Dimensions{Size: sz}
 }
 
 func (b *Button) Layout(gtx *layout.Context) {
+	mwidth := gtx.Constraints.Width.Min
 	b.clicked = false
 	for _, ev := range b.Click.Events(gtx) {
 		if ev.Type == gesture.TypeClick {
@@ -97,10 +99,11 @@ func (b *Button) Layout(gtx *layout.Context) {
 			ins.Layout(gtx, func() {
 				l.Layout(gtx)
 			})
-			pointer.RectAreaOp{image.Rect(0, 0, gtx.Dimensions.Size.X, gtx.Dimensions.Size.Y)}.Add(gtx.Ops)
+			pointer.Rect(image.Rect(0, 0, gtx.Dimensions.Size.X, gtx.Dimensions.Size.Y)).Add(gtx.Ops)
 			b.Click.Add(gtx.Ops)
 		})
 		c1 := st.Expand(gtx, func() {
+			gtx.Constraints.Width.Min = mwidth
 			layoutRRect(b.Background, gtx)
 		})
 		st.Layout(gtx, c1, c2)

go.mod

@@ -0,0 +1,13 @@
+module git.wow.st/gmp/passgo
+
+go 1.13
+
+require (
+	gioui.org v0.0.0-20191126175243-2ca2e5462f16
+	git.wow.st/gmp/clip v0.0.0-20191001134149-1458ba6a7cf5
+	git.wow.st/gmp/rand v0.0.0-20191001220155-a81bebfaf8b0
+	github.com/fsnotify/fsnotify v1.4.7
+	github.com/jcmdev0/gpgagent v0.0.0-20180509014935-5601b32d936c
+	golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c
+	gopkg.in/yaml.v2 v2.2.7
+)

go.sum

@@ -0,0 +1,40 @@
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+gioui.org v0.0.0-20191126175243-2ca2e5462f16 h1:p31rtmKm51xpj2QtqGNlljAyHEP1oStU8MDRl2Dv7Gs=
+gioui.org v0.0.0-20191126175243-2ca2e5462f16/go.mod h1:KqFFi2Dq5gYA3FJ0sDOt8OBXoMsuxMtE8v2f0JExXAY=
+git.wow.st/gmp/clip v0.0.0-20191001134149-1458ba6a7cf5 h1:OKeTjZST+/TKvtdA258NXJH+/gIx/xwyZxKrAezNFvk=
+git.wow.st/gmp/clip v0.0.0-20191001134149-1458ba6a7cf5/go.mod h1:NLdpaBoMQNFqncwP8OVRNWUDw1Kt9XWm3snfT7cXu24=
+git.wow.st/gmp/rand v0.0.0-20191001220155-a81bebfaf8b0 h1:08wP00wvbDINsct1fzKV1xGGLvvtNsSb2X4CtIdpBzM=
+git.wow.st/gmp/rand v0.0.0-20191001220155-a81bebfaf8b0/go.mod h1:8+2Gwnrpc5yuk8Wp6cBhxvGcNLumYiPbQ7n0SQ8h29A=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
+github.com/jcmdev0/gpgagent v0.0.0-20180509014935-5601b32d936c h1:DCnjNrPDSEslcqqBgcZBxlLUIhk2elQVyf2V+HkyxJI=
+github.com/jcmdev0/gpgagent v0.0.0-20180509014935-5601b32d936c/go.mod h1:vdJ2op9pzpbH8CbpYKYBD6zjURqDY13PmnVn2I/uYBs=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c h1:/nJuwDLoL/zrqY6gf57vxC+Pi+pZ8bfhpPkicO5H7W4=
+golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3 h1:n9HxLrNxWWtEb1cA950nuEEj3QnKbtsCJ6KjcgisNUs=
+golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3/go.mod h1:NOZ3BPKG0ec/BKJQgnvsSFpcKLM5xXVWnvZS97DWHgE=
+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/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=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a h1:aYOabOQFp6Vj6W1F80affTUvO9UxmJRx8K0gsfABByQ=
+golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20190927191325-030b2cf1153e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

impl_android.go

@@ -27,38 +27,33 @@ import (
 var (
 	h *app.Handle
 	waitch chan struct{}
-	w *app.Window
+	//w *app.Window
 	pgp PGP
-	InitPgpOnce sync.Once
+	installCompleteOnce sync.Once
 )
 
 func init() {
 	waitch = make(chan struct{})
 }
 
-//export installComplete
+//export Java_st_wow_git_passgo_PgpConnect_installComplete
-func installComplete(env *C.JNIEnv, class C.jclass, p C.jobject) {
+func Java_st_wow_git_passgo_PgpConnect_installComplete(env *C.JNIEnv, class C.jclass, p C.jobject) {
 	log.Printf("InstallComplete()")
 	pgp = PGP(C.NewGlobalRef(env, p))
+	h = app.PlatformHandle()
+	SetJVM(h.JVM)
+	installCompleteOnce.Do(func() {
 		close(waitch)
+	})
 }
 
-func InitPgp(x *app.Window) {
+func InitPgp(w *app.Window) {
-	InitPgpOnce.Do(func() {
 	log.Printf("InitPgp()")
-		w = x
+	w.RegisterFragment("st/wow/git/passgo/PgpConnect")
-		h = app.PlatformHandle()
-		SetJVM(h.JVM, h.Context)
-		RunInJVM(func(env *JNIEnv) {
-			C.InitPgpConnect(env)
-		})
-		w.RegisterDelegate("st/wow/git/passgo/PgpConnect")
-	})
 }
 
 func stopPgp() {
 	waitch = make(chan struct{})
-	w = nil
 }
 
 func connect() {

jni_android.c

@@ -2,61 +2,9 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <jni.h>
-#include <android/log.h>
 #include "jni_android.h"
 #include "_cgo_export.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);
-}
-
-jobject
-CreateObject(JNIEnv* env, jclass cls) {
-	jmethodID init = (*env)->GetMethodID(env, cls, "<init>", "()V");
-	return (*env)->NewObject(env, cls, init);
-}
-
-void
-InitPgpConnect(JNIEnv* env) {
-	jclass cls = FindClass(env, "st/wow/git/passgo/PgpConnect");
-	printf("class = %p", cls);
-
-	static const JNINativeMethod actMethods[] = {
-		{
-			.name = "activityResult",
-			.signature = "(II)V",
-			.fnPtr = activityResult
-		},
-		{
-			.name = "stringResult",
-			.signature = "(ILjava/lang/String;)V",
-			.fnPtr = stringResult
-		},
-		{
-			.name = "installComplete",
-			.signature = "(Lst/wow/git/passgo/PgpConnect;)V",
-			.fnPtr = installComplete
-		},
-	};
-
-	(*env)->RegisterNatives(env, cls, actMethods, sizeof(actMethods)/sizeof(actMethods[0]));
-}
-
 void
 GetId(JNIEnv* env, jobject p, int chint) {
 	jclass cls = (*env)->GetObjectClass(env, p);
@@ -77,7 +25,7 @@ Decrypt(JNIEnv* env, jobject p, char* cdata, int datalen, int chint) {
 	(*env)->CallVoidMethod(env, p, mid, data, chint);
 }
 
-void stringResult(JNIEnv* env, jclass cls, jint requestCode, jobject response) {
+void Java_st_wow_git_passgo_PgpConnect_stringResult(JNIEnv* env, jclass cls, jint requestCode, jobject response) {
 	if (response == 0) {
 		goStringResult(env, cls, requestCode, 0);
 	} else {
@@ -116,18 +64,6 @@ void CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID) {
 	(*env)->CallVoidMethod(env, obj, methodID);
 }
 
-void CallVoidMethod1(JNIEnv *env, jobject obj, jmethodID methodID, jobject arg) {
-	(*env)->CallVoidMethod(env, obj, methodID, arg);
-}
-
-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);
 }

jni_android.go

@@ -1,7 +1,7 @@
 package passgo
 
 /*
-#cgo LDFLAGS: -landroid -llog
+#cgo LDFLAGS: -landroid
 
 #include <stdlib.h>
 #include "jni_android.h"
@@ -20,54 +20,17 @@ import (
 var theJVM *C.JavaVM
 type JNIEnv = C.JNIEnv
 
-func SetJVM(jvm, context uintptr) {
+func SetJVM(jvm uintptr) {
 	log.Print("set theJVM")
 	theJVM = (*C.JavaVM)(unsafe.Pointer(jvm))
-	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, arg uintptr) {
-	C.CallVoidMethod1(env, obj, methodID, C.jobject(unsafe.Pointer(arg)))
-}
-
-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))
-}
-
 type PGP C.jobject
 
-func InitPgpConnect(env uintptr) {
-	C.InitPgpConnect((*C.JNIEnv)(unsafe.Pointer(env)))
-}
-
-//func NewPgpConnect(env uintptr, act uintptr) PGP {
-//	return (PGP)(C.NewPgpConnect((*C.JNIEnv)(unsafe.Pointer(env)), (C.jobject)(unsafe.Pointer(act))))
-//}
-
 var (
 	fragChans map[int]chan string
 	chmux sync.Mutex
@@ -180,11 +143,6 @@ func RunInJVM(f func(env *C.JNIEnv)) {
 	f(env)
 }
 
-//export activityResult
-func activityResult(env *C.JNIEnv, class C.jclass, request, result C.jint) {
-	log.Printf("activityResult (%d): %d", request, result)
-}
-
 //export goStringResult
 func goStringResult(env *C.JNIEnv, class C.jclass, request C.jint, str *C.char) {
 	fragChans[int(request)] <- C.GoString(str)

jni_android.h

@@ -1,18 +1,11 @@
 #include <jni.h>
 
-void SetLoader(JNIEnv* env, jobject context);
-jclass FindClass(JNIEnv* env, char* name);
-jobject CreateObject(JNIEnv* env, jclass cls);
-void InitPgpConnect(JNIEnv* env);
 void GetId(JNIEnv* env, jobject p, int chint);
 void Decrypt(JNIEnv* env, jobject p, char* cdata, int datalen, int chint);
 void Encrypt(JNIEnv* env, jobject p, char* cid, int idlen, char* cdata, int datalen, int chint);
 void Clip(JNIEnv* env, jobject p, char* cdata, int datalen);
 void stringResult(JNIEnv* env, jclass cls, jint requestCode, jobject response);
 void CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID);
-void CallVoidMethod1(JNIEnv *env, jobject obj, jmethodID methodID, jobject arg);
-jint CallIntMethod(JNIEnv *env, jobject obj, jmethodID methodID);
-jmethodID GetMethodID(JNIEnv *env, jclass clazz, const char *name, const char *sig);
 jint GetEnv(JavaVM *vm, JNIEnv **env, jint version);
 jint AttachCurrentThread(JavaVM *vm, JNIEnv **p_env, void *thr_args);
 jint DetachCurrentThread(JavaVM *vm);