How to simulate Fake GPS in XCode

 https://medium.com/innocode-stories/tutorial-how-to-simulate-location-on-the-ios-device-e2be20fbd7f4

Unsupported Architectures. The executable for [Project Name]'[i386, x86_64]'

Build Phases->Run Script

Add this script below

cd "${CONFIGURATION_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/"

if [[ -d "Frameworks" ]]; then 

    rm -fr Frameworks

fi 

To set gpu memory rate manually when using keras

from tensorflow.compat.v1 import ConfigProto
from tensorflow.compat.v1 import InteractiveSession
config = ConfigProto()
config.gpu_options.per_process_gpu_memory_fraction = 0.8
session = InteractiveSession(config=config)

tensorflow.python.framework.errors_impl.UnknownError: Failed to get convolution algorithm. This is probably because cuDNN failed to initialize

add this code below on the top of the source code

gpus = tf.config.experimental.list_physical_devices('GPU')
if gpus:
    try:
        # Currently, memory growth needs to be the same across GPUs
        for gpu in gpus:
            tf.config.experimental.set_memory_growth(gpu, True)
        logical_gpus = tf.config.experimental.list_logical_devices('GPU')
        print(len(gpus), "Physical GPUs,", len(logical_gpus), "Logical GPUs")
    except RuntimeError as e:
    # Memory growth must be set before GPUs have been initialized
        print(e)

After removing storyboard, app appears black in iOS with Objective-c.

1. set iOS version over 13 and make "Main Interface" is empty

2. add a ViewController

3. nd code below in the SceneDelegate.m 

- (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions {

    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.

    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.

    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).

    

    self.window = [[UIWindow alloc] initWithWindowScene:(UIWindowScene*)scene];

    MainViewController *controller = [[MainViewController alloc] initWithNibName:@"MainViewController" bundle:nil];

    self.window.backgroundColor = [UIColor redColor];

    self.window.rootViewController = controller;

    [self.window makeKeyAndVisible];

}

Print whole matrix in Numpy

import sys

import numpy as np

np.set_printoptions(threshold=sys.maxsize)

// and then print the matrix what you want

print(np.arange(1000).reshape(2,5,100))

[Android] Google Social Login

build-generate signed bundle/APK.. 메뉴에서 서명키 생성 

xxxx.jks 파일 위치 확인

release 용 sha1 확인

keytool -keystore goodbulter_keystore.jks -list -v

Firebase 키 추가

1. 이동 https://console.firebase.google.com/?hl=ko

2. 프로젝트 선택

3. 프로젝트개요 톱니바퀴-프로젝트 설정

4. 내앱 카테고리에서 sha1 디지털 지문 추가

5. google-services.json 다운로드

6. 안드로이드 스튜디오 프로젝트 브라우저에서 project로 바꿈

7. app 폴더 밑에 josn 파일 복사(끌어다 놓기)

8. 메뉴 build-generate signed bundle/APK.. 

9. 빌드 후 구글 플레이 콘솔사이트 이동

10. 출시관리-앱버전 => 버전수정->빌드된 파일추가(aac or apk)

11. 맨아래 버전 코멘트 

12. 검토->게시

Using Swift framework in an Objective-c project

reference
https://marcinczenko.github.io/post/using-swift-frameworks-from-objective-c-target/


===============================================
=============== Swift Framework ===============
===============================================
Make a ExampleSwiftFramework framework. not Static Library
Add ExampleSwiftFramework.swift and put the code below

@objc
public class ExampleSwiftFrameworkClass : NSObject {

    let message: String

    @objc(init:)
    public init(withHelloMessage message: String) {
        self.message = message
    }

    @objc(sayHello)
    public func sayHello() -> String {
        return self.message
    }
}

TARGETS->Build Settings
Mach-O : 'Dynamic Library'

Build Options->Always Embeded Swift Standard Libraries : No
Packaging->Defines Module : Yes
Apple Clang-Language-Modules->Enable Modules(C and Objective-C) : Yes

next to the upper left 'stop' icon. click framework and edit scheme->Run->Build Configuration=> Release

Click Product->Build
and you can see the built framework on the project navigato.
Right click at the file->Show in Finder

===============================================
============= Objective-C project =============
===============================================
Make an objective-C project

TARGETS->General
1. add the swift framework into the 'Frameworks, Libraries, and Embedded Content'
2. and then you can see 'Framework' folder in the project navigator.
3. remove the framework from the 'Frameworks, Libraries, and Embedded Content'
4. drag the framework.framework folder into the 'Framework' in the project navigator

TARGETS -> Build Settings(All, Combined taps)
Build Option -> Always Embed Swift Standard Libraries : No

TARGETS -> Build Phases
Click '+' and add New Copy Files Phase category
add the swift framework what you need and keep the default option(Code Sign On Copy : checked, Copy only when installing : unchecked)

put the code below in -(void)viewDidLoad

ExampleSwiftFrameworkClass *exam = [[ExampleSwiftFrameworkClass alloc] init:@"Test"];
NSLog(@"%@", [exam sayHello]);

Room migrations in Kotlin

To test you need two class 


//===============================================================

// AppDatabase class
Database(entities = [Song::class], version = 1, exportSchema = false)

abstract class AppDatabase : RoomDatabase() {
        companion object {
        @Volatile private var INSTANCE: AppDatabase? = null
        fun getInstance(context: Context): AppDatabase =
            INSTANCE ?: synchronized(this) {                
         INSTANCE ?: buildDatabase(context).also {INSTANCE = it }}
        private fun buildDatabase(context: Context) =              
        Room.databaseBuilder(context.applicationContext,                  
        AppDatabase::class.java, "test.db").build()

        fun destroyInstance() {

            INSTANCE = null        
        }
    }
}

//===============================================================

// Entity class

// when the version was 1

@Entitydata class Song(
    @PrimaryKey val id: Long,    val title: String
)

//===============================================================

When you run an app with the database version 1
after then you modified the Song class added 'tag' entity.
@Entitydata class Song(
    @PrimaryKey    val id: Long,    
    val title: String,    
    val tag: String // Added in version 2.
)


you should change the version number of AppDatabase class like below from 1 to 2
Database(entities = [Song::class], version = 2, exportSchema = false)



you also have to edit database builder like this


private fun buildDatabase(context: Context) =
     Room.databaseBuilder(context.applicationContext, 
          AppDatabase::class.java, "terry.db")
          .addMigrations(MIGRATION_1_2).build()


and add migration code or edit it in the Song class
// Migration from 1 to 2, Room 2.1.0val MIGRATION_1_2 = object : Migration(1, 2) {
    override fun migrate(database: SupportSQLiteDatabase) {
        database.execSQL(
            "ALTER TABLE Song ADD COLUMN tag TEXT NOT NULL DEFAULT ''")
    }
}

That's all! :)

Dealing with Date of SQLite

https://www.techonthenet.com/sqlite/functions/date.php

우분투(18.04) 설치 후 윈도우(Win10 pro) 설치(멀티부팅)

https://goodtogreate.tistory.com/entry/%EB%A9%80%ED%8B%B0%EB%B6%80%ED%8C%85-%EC%9A%B0%EB%B6%84%ED%88%AC-%EC%84%A4%EC%B9%98-%ED%9B%84-%EC%9C%88%EB%8F%84%EC%9A%B0-Install-Windows10-alongside-Ubuntu

우분투 카톡 설치

와인설치는 아래 링크 먼저 확인해서 설치.
와인 버전 설치할 때 우분투 버전 18, 19 구분하는 옵션 부분 잘 확인해서 설치

카톡설치
https://lucidmaj7.tistory.com/159

와인설치
http://ubuntuhandbook.org/index.php/2020/01/install-wine-5-0-stable-ubuntu-18-04-19-10/

우분투 18.04에 윈도우 10 멀티부팅

윈도우 설치 후 재부팅하면 오랫동안 진행이 안되는 것 같은데 완료됨.
네트웍이 무선이 아니라 유선으로 연결을 해야진행되는 걸 수도 있음.
무선으로 연결해서 한참 기다려도 윈도우화면 안나와서 몇번 설치 실패.
유선 연결 후 20 ~ 30분 정도 기다린 후 정상 설치 됨. 무선에서 더기다려서 될수도 있음.

https://goodtogreate.tistory.com/entry/%EB%A9%80%ED%8B%B0%EB%B6%80%ED%8C%85-%EC%9A%B0%EB%B6%84%ED%88%AC-%EC%84%A4%EC%B9%98-%ED%9B%84-%EC%9C%88%EB%8F%84%EC%9A%B0-Install-Windows10-alongside-Ubuntu

Ubuntu 18.04 Wine 설치

http://ubuntuhandbook.org/index.php/2020/01/install-wine-5-0-stable-ubuntu-18-04-19-10/

To use Room in Android, you need more dependencies

When you use Room in Android, set the options below

In build.gradle(Module:app)
------------------------------------------------------------------------------------------
apply plugin: 'kotlin-kapt'

dependencies {
    def room_version = "2.2.3"
    def lifecycle_version = "2.2.0"
    implementation "androidx.room:room-runtime:$room_version"
    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"

    implementation "android.arch.lifecycle:extensions:$lifecycle_version"
    kapt "android.arch.lifecycle:compiler:$lifecycle_version"
    implementation "android.arch.persistence.room:runtime:$room_version"
    kapt "androidx.room:room-compiler:$room_version"
}

When you meet the error 'Failed to resolve: com.github.PhilJay:MPAndroidChart:v3.1.1'

in build.gradle(Project: project name)

buildscript {    ext.kotlin_version = "1.3.72"    repositories {        maven { url 'https://jitpack.io'}
        google()
        jcenter()
    }    dependencies {        classpath "com.android.tools.build:gradle:4.0.0"        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        // NOTE: Do not place your application dependencies here; they belong        // in the individual module build.gradle files    }}
allprojects {    repositories {        maven { url 'https://jitpack.io'}
        google()
        jcenter()
    }}

in build.gradle(Module: app)
dependencies {

    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"    implementation 'androidx.core:core-ktx:1.3.0'    implementation 'androidx.appcompat:appcompat:1.1.0'    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'    implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
    testImplementation 'junit:junit:4.13'    androidTestImplementation 'androidx.test.ext:junit:1.1.1'    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'}

no permissions (user in plugdev group; are your udev rules wrong?)

# run commends below on terminal
$ sudo apt-get install libmtp-common mtp-tools libmtp-dev libmtp-runtime libmtp9
$ sudo apt-get dist-upgrade

# remember the red text below
$lsusb
Bus 007 Device 002: ID 18d1:6jw2 Google Inc.
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0aa7 Intel Corp.
Bus 001 Device 003: ID 04b4:2001 Cypress Semiconductor Corp.
Bus 001 Device 002: ID 045e:0823 Microsoft Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

# open the file and input the string below

$ sudo nano /etc/fuse.conf
SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="6jw2", MODE="0666", GROUP="plugdev"

$ sudo udevadm control --reload-rules

$ adb devices

# Solved. right? :)

Tensorboard error

When errors occur with libprotobuf or protobuf in Tensorboard(Tensorflow 1.14 or 1.15)

Just downgrade its version all above as 3.8.0 in Anaconda.

[iOS 배포] TestFlight Public link

1. Join the App Store Connect
2. Click to TestFlight
3. Click New Group
4. Add Testers(email and name)
5. Click the Group that you made just before
6. Click Enable Public Link
7. copy the link and share to others

[ML-Agents로 배우는 강화학습] 5~6장 Drone DDPG 훈련 및 실행

0. Unity3D에서 빌드한 실행 파일의 경로를 python코드의 env_name에 지정
1. 소코반 예제처럼 Unity3D에서 xxx.nn 학습 모델을 Agent에 추가하는게 아님.
2. python 코드에서 load_model = True, train_mode = Fasle로 변경
3. load_path의 경로가 학습된 모델의(년월일시로 생생된 디렉토리) path로 설정
4. pycharm 에서 실행하면 됨.

우분투에서 유니티 런처 아이콘 고정

# 1. 아래 내용 텍스트 에디터에 붙여넣기.  확장자는 ."desktop"

[Desktop Entry]
Name=Unity3D
Name[ko]=유니티3D
Type=Application
Icon=/media/data1/2019.2.17f1/Editor/Data/Resources/UnityPlayerIcon.png #아이콘위치
Exec=/media/data1/Unity3D/UnityHub.AppImage # 실행 프로그램 위치

# 2. 아래 경로로 1번에서 만든 xxx.desktop 파일 이동.
/home/계정/.local/share/applications/

# 3. 프로그램 표시 버튼 클릭하여 나타나는 화면에서 unity 검색하면 아이콘 나타남. 우클릭해서"즐겨찾기 추가"