Port to gio gioui.org@20200829.

BlessedConnect.java

@@ -1,6 +1,7 @@
 package st.wow.git.ble;
 
 import java.lang.String;
+import java.lang.Runnable;
 import java.util.List;
 import java.util.UUID;
 import android.app.Activity;
@@ -19,6 +20,7 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.Manifest;
+import android.os.Handler;
 import android.util.Log;
 import android.view.View;
 
@@ -40,11 +42,18 @@ public class BlessedConnect extends Fragment {
 
 	public void register(View view) {
 		Log.d("gio", "BlessedConnect: register()");
-		Activity act = (Activity)view.getContext();
+		Context ctx = view.getContext();
+		Handler handler = new Handler(ctx.getMainLooper());
+		BlessedConnect inst = this;
+		handler.post(new Runnable() {
+			public void run() {
+				Activity act = (Activity)ctx;
 				FragmentTransaction ft = act.getFragmentManager().beginTransaction();
-		ft.add(this, "BlessedConnect");
+				ft.add(inst, "BlessedConnect");
 				ft.commitNow();
 			}
+		});
+	}
 
 	@Override public void onAttach(Context ctx) {
 		super.onAttach(ctx);

ble_android.go

@@ -223,16 +223,13 @@ func NewBLE() *BLE {
 }
 
 //Enable
-func (b *BLE) Enable(w *app.Window) {
+func (b *BLE) Enable(view uintptr) {
 	log.Printf("ble.Enable()")
 	setJVM(app.JavaVM())
-	go w.Do(func(view uintptr) {
+	runInJVM(func(env *JNIEnv) {
-		log.Printf("ble.Enable(): inside w.Do()")
-		runInJVM(func(env *C.JNIEnv) {
 		log.Printf("ble.Enable(): inside runInJVM()")
 		C.registerFragment(env, (C.jobject)(unsafe.Pointer(view)))
 	})
-	})
 }
 
 // Go callbacks from Java

ble_darwin.go

@@ -8,8 +8,6 @@ import (
 	"time"
 	"unsafe"
 
-	"gioui.org/app"
-
 	"git.wow.st/gmp/ble/gatt"
 	"git.wow.st/gmp/ble/ns"
 )
@@ -204,7 +202,7 @@ func NewBLE() *BLE {
 }
 
 //Enable is not required for Darwin.
-func (b *BLE) Enable(w *app.Window) {
+func (b *BLE) Enable(v uintptr) {
 }
 
 // Core Bluetooth callback functions

go.mod

@@ -2,4 +2,4 @@ module git.wow.st/gmp/ble
 
 go 1.13
 
-require gioui.org v0.0.0-20200619121558-88ced59dad93
+require gioui.org v0.0.0-20200829162755-829ee4559c5a

go.sum

@@ -5,6 +5,8 @@ gioui.org v0.0.0-20200612151431-2dc19a36959c h1:sGUKyRMv2bbfbsRyG8ghOI12l+WCGta+
 gioui.org v0.0.0-20200612151431-2dc19a36959c/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=
+gioui.org v0.0.0-20200829162755-829ee4559c5a h1:mciXRGzQwU0TbgCILZzl6L1nYIWU31lDGIb+8RYige8=
+gioui.org v0.0.0-20200829162755-829ee4559c5a/go.mod h1:Y+uS7hHMvku1Q+ooaoq6fYD5B2LGoT8JtFgvmYmRzTw=
 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=

jni_android.c

@@ -5,11 +5,20 @@
 
 void
 registerFragment(JNIEnv *env, jobject view) {
-	jclass cls = (*env)->FindClass(env, "st/wow/git/ble/BlessedConnect");
+	jclass cls = (*env)->GetObjectClass(env, view);
-	jmethodID reg = (*env)->GetMethodID(env, cls, "register", "(Landroid/view/View;)V");
+	jmethodID mid = (*env)->GetMethodID(env, cls, "getContext", "()Landroid/content/Context;");
-	jmethodID init = (*env)->GetMethodID(env, cls, "<init>", "()V");
+	jobject ctx = (*env)->CallObjectMethod(env, view, mid);
-	jobject inst = (*env)->NewObject(env, cls, init);
+	cls = (*env)->GetObjectClass(env, ctx);
-	(*env)->CallVoidMethod(env, inst, reg, view);
+	mid = (*env)->GetMethodID(env, cls, "getClassLoader", "()Ljava/lang/ClassLoader;");
+	jobject loader = (*env)->CallObjectMethod(env, ctx, mid);
+	cls = (*env)->GetObjectClass(env, loader);
+	mid = (*env)->GetMethodID(env, cls, "findClass", "(Ljava/lang/String;)Ljava/lang/Class;");
+	jstring str = (*env)->NewStringUTF(env, "st/wow/git/ble/BlessedConnect");
+	cls = (*env)->CallObjectMethod(env, loader, mid, str);
+	mid = (*env)->GetMethodID(env, cls, "<init>", "()V");
+	jobject inst = (*env)->NewObject(env, cls, mid);
+	mid = (*env)->GetMethodID(env, cls, "register", "(Landroid/view/View;)V");
+	(*env)->CallVoidMethod(env, inst, mid, view);
 }
 
 jboolean