Hello! Hola! Hej!

Installation did not succeed.
The application could not be installed: INSTALL_FAILED_CONFLICTING_PROVIDER
Installation failed due to: 'null'

안드로이드 폰에 설치하려고 할 때 나는 이슈

> 이미 설치되어 있는 앱이 있다고 인식하고 설치가 되지 않는다. 

> AndroidManifest.xml

<data android:host="app"
    android:scheme="AppName" />

AppName 부분이 유니크해야한다. 

Google Play 결제 라이브러리 사용하기 

https://developer.android.com/google/play/billing/billing_library_overview

| 정기 결제 개요

https://developer.android.com/google/play/billing/billing_overview#다음-단계

1) Google Play 결제 개요 를 우선 읽고 개념용어 익히기.

2) Google Play Console 에서 인앱 상품 구성 일회성/리워드/구독

| Sample App 

https://github.com/googlesamples/android-play-billing/tree/master/TrivialDrive_v2

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:radius="10dp" />
    <solid android:color="@color/notify_background"/>
</shape>

Debugging considerations

When debugging applications that use USB accessory or host features, you most likely will have USB hardware connected to your Android-powered device. This will prevent you from having an adb connection to the Android-powered device via USB. You can still access adb over a network connection. To enable adb over a network connection:

1. Connect the Android-powered device via USB to your computer.
2. From your SDK platform-tools/ directory, enter adb tcpip 5555 at the command prompt.
3. Enter adb connect <device-ip-address>:5555 You should now be connected to the Android-powered device and can issue the usual adbcommands like adb logcat.
4. To set your device to listen on USB, enter adb usb.

STEP 1.  컴퓨터 - 기기 USB 연결 상태에서  TCPIP 모드 진입 

 adb -d tcpip 5555

STEP 2. USB 연결 해제 후

adb connect 해당기기 ip:5555

STEP 3.  android studio 에서 원격디버깅' 버튼 클릭

* 재빌드 시에는  step2부터 다시 반복 

참고) https://developer.android.com/guide/topics/connectivity/usb/index.html