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x/mobile: best way to import and update .aar in Android Studio #18945

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beatscode opened this issue Feb 5, 2017 · 2 comments
Closed

x/mobile: best way to import and update .aar in Android Studio #18945

beatscode opened this issue Feb 5, 2017 · 2 comments
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@beatscode
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Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.7.5 darwin/amd64

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/alex/projects/go"
GORACE=""
GOROOT="/usr/local/opt/go/libexec"
GOTOOLDIR="/usr/local/opt/go/libexec/pkg/tool/darwin_amd64"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/n0/d33ctpqd2v3bzkq0g1rx4psr0000gn/T/go-build143199622=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"

What did you do?

If possible, provide a recipe for reproducing the error.
A complete runnable program is good.
A link on play.golang.org is best.

Wrote a small go file which exported 1 function called Justtesting(in string) string ...
Ran gomobile build -x -v -target=android com.alex/mobilelib
Went to android studio and did the following:
File > New > New Module > Import .JAR or .AAR package
File > Project Structure > app -> Dependencies -> Add Module Dependency
Add import: import mobilelib.Mobilelib;
Mobilelib.Justtesting worked after building and running.

I changed the source code of the go file and added a different exported function Getuser(a string, b string) string ...

When I tried to update the file by reimporting, Android studio stops me to say that a library with the same name already exists. So I open the directory instead and update the .aar file manually.

I notice there is a gradle plugin that seems like it might be what I'm looking for but I'm not sure how to use the build script. Android studio creates a build.grade for my module

configurations.maybeCreate("default")
artifacts.add("default", file('mobilelib.aar'))

I tried replacing this with the following from hello/build.gradle

plugins {
    id "org.golang.mobile.bind" version "0.2.8"
}

gobind {
    /* The Go package path; must be under one of the GOPATH elements or
     a relative to the current directory (e.g. ../../hello) */
   //    pkg = "golang.org/x/mobile/example/bind/hello"
     pkg = "com.alex/mobilelib"
    /* GOPATH where the Go package is; check `go env` */
    // GOPATH = "/YOUR/GOPATH"

    /* Absolute path to the go binary */
    // GO = "/PATH/TO/GO"

    /* Optionally, set the absolute path to the gomobile binary if the
    /* gomobile binary is not located in the GOPATH's bin directory. */
    // GOMOBILE = "/PATH/TO/GOMOBILE"
}

What did you expect to see?

Successful build

What did you see instead?

:mobilelib:gobind FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':mobilelib:gobind'.
> Cannot get property 'classpath' on null object

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 0.427 secs
@ALTree ALTree changed the title Best way to import and update .aar in Android Studio x/mobile: best way to import and update .aar in Android Studio Feb 6, 2017
@ALTree
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ALTree commented Feb 6, 2017

Hi,

is this a bug report or a question about using gomobile with Android Studio?

If it's the latter, you should ask it somewhere else, since we don't use the issue tracker for questions (see the Questions wiki page; it has a list of good places for asking questions).

@beatscode
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It is a bit of both.. but I can use one of those channels in the wiki

@golang golang locked and limited conversation to collaborators Feb 6, 2018
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@beatscode @ALTree @gopherbot