gomobile

Gomobile.md

gomobile bindによるライブラリ作成おさらい。

• go getでgomobile取り込み
• gomobile intiでNDKなどの取得
• gomobile bind　でframeworkやaarファイルを作成。
• Android,iOS各プロジェクトに投入。動作確認

go get golang.org/x/mobile/cmd/gomobile
gomobile init

gomobile bind -target ios
gomobile bind -target android

Androidにてpermission付与わすれた時のエラー、行数なんかも表示してくれる

06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: panic: runtime error: invalid memory address or nil pointer dereference
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: [signal 0xb code=0x1 addr=0x0 pc=0x7f923827b8]
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: goroutine 17 [running, locked to thread]:
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: panic(0x7f92679f60, 0x482000a070)
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: 	/usr/local/Cellar/go/1.6.2/libexec/src/runtime/panic.go:481 +0x384
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: github.com/mogeta/breaktime.GetURL(0x0, 0x0)
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: 	/Users/h-mimori/go/src/github.com/mogeta/breaktime/status.go:52 +0x48
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: github.com/mogeta/breaktime.Get(0x482002cee0)
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: 	/Users/h-mimori/go/src/github.com/mogeta/breaktime/status.go:24 +0x20
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: _/var/folders/t9/634g7z_x13gdbf6y8t8z2fp80000gp/T/gomobile-work-762838960/gomobile_bind.proxybreaktime__Get(0x482002cf08)
06-15 16:00:49.907 27451-0/sandbox.muzigen.net.abreak E/Go: 	/var/folders/t9/634g7z_x13gdbf6y8t8z2fp80000gp/T/gomobile-work-762838960/gomobile_bind/go_breaktimemain.go:103 +0x20
06-15 16:00:49.907 27451-0/? E/Go: _/var/folders/t9/634g7z_x13gdbf6y8t8z2fp80000gp/T/gomobile-work-762838960/gomobile_bind._cgoexpwrap_85cb1b500e13_proxybreaktime__Get(0x3e21ee9ebdb4b1c4)
06-15 16:00:49.907 27451-0/? E/Go: 	??:0 +0x28

MainActivity.java

package sandbox.muzigen.net.abreak;

import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import go.breaktime.Breaktime;

import static android.R.attr.button;

public class MainActivity extends AppCompatActivity {

    private Handler handler = new Handler();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        Button button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        TextView text = (TextView) findViewById(R.id.textView);
                        if(Breaktime.Get()){
                            text.setText("work! work! work!");
                        }else{
                            text.setText("beer! beer! beer!");
                        }
                    }
                });

            }
        });
    }
}

status.go

//get github status
package breaktime

import (
	"encoding/json"
	"io/ioutil"
	"net/http"
	"time"
)

//https://status.github.com/api
type Api struct {
	StatusURL      string `json:"status_url"`
	MessagesURL    string `json:"messages_url"`
	LastMessageURL string `json:"last_message_url"`
	DailySummary   string `json:"daily_summary"`
}

type Status struct {
	Status      string    `json:"status"`
	LastUpdated time.Time `json:"last_updated"`
}

func Get() bool {
	url := GetURL()
	result := GetStatus(url)
	return result
}

func GetStatus(url string) bool {
	resp, _ := http.Get(url)
	defer resp.Body.Close()

	byt, _ := ioutil.ReadAll(resp.Body)

	var dat Status

	if err := json.Unmarshal(byt, &dat); err != nil {
		panic(err)
	}

	if dat.Status == "good" {
		return true
	} else {
		return false
	}

}

func GetURL() string {
	url := "https://status.github.com/api.json"
	resp, _ := http.Get(url)
	defer resp.Body.Close()

	byt, _ := ioutil.ReadAll(resp.Body)

	var dat Api

	if err := json.Unmarshal(byt, &dat); err != nil {
		panic(err)
	}
	return dat.StatusURL
}

status_test.go

package breaktime

import "testing"

func TestGet(t *testing.T) {
	if !Get(){
		t.Fail()
	}
}

ViewController.m

#import "ViewController.h"
#import "Breaktime/Breaktime.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UITextField *TextStatus;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
- (IBAction)TouchDown:(id)sender {
    NSLog(@"%@",GoBreaktimeGetURL());
    
    if(!GoBreaktimeGet()){
        [_TextStatus setText:@"beer! beer! beer!"];
    }else{
        [_TextStatus setText:@"work! work! work!"];
    }
}

@end