Tanapruk

###Extension Functions

####Kotlin

fun CharSequence.isEmail() = this.matches("[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+".toRegex())


val stringImpl : String = "foo@email.com"

Tanapruk

###Validate Your Login Email & Password With RxBinding and Kotlin

Variables

val emailChgObs = RxTextView.textChangeEvents(etEmail).publish().autoConnect(2)
val pwdChgObs = RxTextView.textChangeEvents(etPassword)

btnLogin.isEnabled = false

var subscriptionEmailValid = emailChgObs

Tanapruk

Complete Transparent Status Bar & Navigation Bar

In your theme

<item name="android:statusBarColor" tools:targetApi="lollipop">@android:color/transparent</item>
<item name="android:navigationBarColor" tools:targetApi="lollipop">@android:color/transparent</item>

In your layout

Tanapruk

1. dependencies

testCompile 'org.powermock:powermock-api-mockito:1.6.5'
testCompile 'org.powermock:powermock-module-junit4-rule-agent:1.6.5'
testCompile 'org.powermock:powermock-module-junit4-rule:1.6.5'
testCompile 'org.powermock:powermock-module-junit4:1.6.5'

2. ใส่ tag บน class

Tanapruk

#I copy this from various places

#Debug when crashing by looking at:
#/app/build/outputs/mapping/normal/release
#mapping.txt use the class to search in here.

#

Tanapruk

#export path for android
export ANDROID_HOME=/Users/username/Documents/Android/sdk
export PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tool



#to capture screen from android phone
function cap() {
	LOCATIONPHONE=sdcard/screen_$(date "+%Y%m%d%H%M%S").png

Tanapruk

1. Sign your key first

https://github.com/XVimProject/XVim/blob/master/INSTALL_Xcode8.md

2. Clone repo (No specific path required, I preferred ~/Library

cd ~/Library
git clone https://github.com/XVimProject/XVim.git

Tanapruk

/**
*init service to check whether the phone use any security
*/
KeyguardManager keyguardManager = getSystemService(KeyguardManager.class);

/**
 * if no keyguard then  you cannot use fingerprint scanner.
 */
if (!keyguardManager.isKeyguardSecure()) {
    // Show a message that the user hasn't set up a fingerprint or lock screen.

Tanapruk

###There is no official maven-based way to install OpenCV on Android. You have to download and set it up to your project.

1. Download the sdk and extract it somewhere.

2. File>New>Import Module and select sdk/java

└── sdk
    ├── etc
    ├── java
 └── native

Tanapruk

TextureView

You need to initialize TextureView before opening a camera. TextureView is for displaying the image from camera on the device. However, you cannot use it unless the texture is ready, either because the screen is currently off or it is initializing.

You should check mTextureView.isAvailable() before opening your camera. Else you will mTextureView.setSurfaceTextureListener(). And open your camera in the callback method onSurfaceTextureListener.

Camera

Before opening your camera you should check for a camera permission first.