修改GOMobile默认编译出来动态库名字（默认libgojni.so），新名字规则是lib<包名>.so

README.md

修改gomobile编译出来的动态库名字

• 动态库命名规则：lib<包名>.so
• 基于gomobile的ca3c58166ed802c9810ffc499b01bc1cd2e0153a commit进行修改
• 修改文件：${GOPATH}/src/golang.org/x/mobile/cmd/gomobile/bind_androidapp.go
• 修改完成后，执行go install -v golang.org/x/mobile/cmd/gomobile重新编译并安装gomobile二进制文件

bind_androidapp.go.diff

diff --git a/cmd/gomobile/bind_androidapp.go b/cmd/gomobile/bind_androidapp.go
index 9897fbd..8ce17c3 100644
--- a/cmd/gomobile/bind_androidapp.go
+++ b/cmd/gomobile/bind_androidapp.go
@@ -6,6 +6,7 @@ package main
 
 import (
 	"archive/zip"
+	"bytes"
 	"errors"
 	"fmt"
 	"go/build"
@@ -18,7 +19,12 @@ import (
 	"strings"
 )
 
+const (
+	DefaultLibName = "gojni"
+)
+
 func goAndroidBind(gobind string, pkgs []*build.Package, androidArchs []string) error {
+	targetPkg := pkgs[0].Name
 	if sdkDir := os.Getenv("ANDROID_HOME"); sdkDir == "" {
 		return fmt.Errorf("this command requires ANDROID_HOME environment variable (path to the Android SDK)")
 	}
@@ -68,7 +74,7 @@ func goAndroidBind(gobind string, pkgs []*build.Package, androidArchs []string)
 			"gobind",
 			env,
 			"-buildmode=c-shared",
-			"-o="+filepath.Join(androidDir, "src/main/jniLibs/"+toolchain.abi+"/libgojni.so"),
+			"-o="+filepath.Join(androidDir, fmt.Sprintf("src/main/jniLibs/%s/lib%s.so", toolchain.abi, targetPkg)),
 		)
 		if err != nil {
 			return err
@@ -121,8 +127,9 @@ func buildSrcJar(src string) error {
 // javac and jar commands are needed to build classes.jar.
 func buildAAR(srcDir, androidDir string, pkgs []*build.Package, androidArchs []string) (err error) {
 	var out io.Writer = ioutil.Discard
+	targetPkg := pkgs[0].Name
 	if buildO == "" {
-		buildO = pkgs[0].Name + ".aar"
+		buildO = targetPkg + ".aar"
 	}
 	if !strings.HasSuffix(buildO, ".aar") {
 		return fmt.Errorf("output file name %q does not end in '.aar'", buildO)
@@ -153,7 +160,7 @@ func buildAAR(srcDir, androidDir string, pkgs []*build.Package, androidArchs []s
 	}
 	const manifestFmt = `<manifest xmlns:android="http://schemas.android.com/apk/res/android" package=%q>
 <uses-sdk android:minSdkVersion="%d"/></manifest>`
-	fmt.Fprintf(w, manifestFmt, "go."+pkgs[0].Name+".gojni", minAndroidAPI)
+	fmt.Fprintf(w, manifestFmt, "go."+targetPkg+"."+targetPkg, minAndroidAPI)
 
 	w, err = aarwcreate("proguard.txt")
 	if err != nil {
@@ -165,7 +172,7 @@ func buildAAR(srcDir, androidDir string, pkgs []*build.Package, androidArchs []s
 	if err != nil {
 		return err
 	}
-	if err := buildJar(w, srcDir); err != nil {
+	if err := buildJar(w, srcDir, targetPkg); err != nil {
 		return err
 	}
 
@@ -214,7 +221,7 @@ func buildAAR(srcDir, androidDir string, pkgs []*build.Package, androidArchs []s
 
 	for _, arch := range androidArchs {
 		toolchain := ndk.Toolchain(arch)
-		lib := toolchain.abi + "/libgojni.so"
+		lib := fmt.Sprintf("%s/lib%s.so", toolchain.abi, targetPkg)
 		w, err = aarwcreate("jni/" + lib)
 		if err != nil {
 			return err
@@ -250,7 +257,7 @@ const (
 	minAndroidAPI  = 15
 )
 
-func buildJar(w io.Writer, srcDir string) error {
+func buildJar(w io.Writer, srcDir, targetPkg string) error {
 	var srcFiles []string
 	if buildN {
 		srcFiles = []string{"*.java"}
@@ -262,6 +269,14 @@ func buildJar(w io.Writer, srcDir string) error {
 			if filepath.Ext(path) == ".java" {
 				srcFiles = append(srcFiles, filepath.Join(".", path[len(srcDir):]))
 			}
+			if strings.Contains(path, "LoadJNI.java") {
+				content, err := ioutil.ReadFile(path)
+				if err != nil {
+					return err
+				}
+				content = bytes.Replace(content, []byte(DefaultLibName), []byte(targetPkg), 1)
+				ioutil.WriteFile(path, content, 775)
+			}
 			return nil
 		})
 		if err != nil {