Issue #555
Synthetic properties generated by Kotlin Android Extensions plugin needs a view for Fragment/Activity to be set before hand.
In your case, for Fragment, you need to use view.btn_K in onViewCreated
override fun onCreateView(inflater: …Issue #497
Synthetic properties generated by Kotlin Android Extensions plugin needs a view for Fragment/Activity to be set before hand.
In your case, for Fragment, you need to use view.btn_K in onViewCreated
override fun onCreateView(inflater: …Issue #472
Use convenient code from Omnia
To make view height dynamic, pin UILabel to edges and center
import UIKit
final class ErrorMessageView: UIView {
let box: UIView = {
let view = UIView()
view. …Issue #466
iOS
View Controller -> View Model | Logic Handler -> Data Handler -> Repo
Android
Activity -> Fragment -> View Model | Logic Handler -> Data Handler -> Repo
Issue #431
build.gradle
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath …Issue #397
We recommend that, rather than disabling the preview window, you follow the common Material Design patterns. You can use the activity’s windowBackground theme attribute to provide a simple custom drawable for the starting activity. …
Issue #396
Use app:headerLayout
<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/navigationView" …Issue #383
Right click res -> New -> Android Resource Directory, select anim and name it anim
Right click res/anim -> New -> Android Resource file, name it bounce
<?xml version="1.0" encoding="utf-8"?>
<set …Issue #382
import android.content.Context
fun Int.toDp(context: Context?): Int {
if (context != null) {
val scale = context.resources.displayMetrics.density
return (this.toFloat() * scale + 0.5f).toInt()
} else { …Issue #381
From API < 17, there is ViewCompat.generateViewId() For API 17, there is View.generateViewId()
Note that to use ConstraintSet, all views under ConstraintLayout inside xml must have unique id
val imageView = ImageView(context)
imageView. …Issue #380
https://developer.android.com/guide/topics/ui/look-and-feel/downloadable-fonts
Android 8.0 (API level 26) and Android Support Library 26 introduce support for APIs to request fonts from a provider application instead of …
Issue #379
interface Api {
@GET("topstories.json?print=pretty")
suspend fun getTopStories(): List<Int>
@GET("item/{id}.json?print=pretty")
suspend fun getStory(@Path("id") id: Int): Item
}
class Repo { …Issue #378
After having a generic RecyclerView, if we want to show multiple kinds of data in Fragment, we can use generic.
We may be tempted to use interface or protocol, but should prefer generic.
class FeedFragment() : Fragment() {
override fun …Issue #370
Define response model
import com.squareup.moshi.Json
data class Response(
@field:Json(name="data") val data: ResponseData
)
data class ResponseData(
@field:Json(name="posts") val posts: Posts
)
data class Posts( …Issue #367
https://api.github.com/search/repositories?sort=stars&order=desc&q=language:javascript,java,swift,kotlin&q=created:>2019-08-21
interface Api {
@GET("https://api.github.com/search/repositories")
suspend fun …Issue #366
Code uses Retrofit 2.6.0 which has Coroutine support
app/build.gradle
implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0-alpha01"
implementation "com.squareup.moshi:moshi:$Version.moshi"
implementation …Issue #363
https://medium.com/androiddevelopers/viewmodels-a-simple-example-ed5ac416317e
Rotating a device is one of a few configuration changes that an app can go through during its lifetime, including keyboard …
Issue #359
app/build.gradle
implementation "org.koin:koin-core:$Version.koin"
implementation "org.koin:koin-androidx-scope:$Version.koin"
implementation "org.koin:koin-androidx-viewmodel:$Version.koin"
MyApplication.kt
import …Issue #358
app/build.gradle
implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0-alpha01"
import androidx.lifecycle.ViewModel
import androidx.lifecycle.liveData
import kotlinx.coroutines.Dispatchers
class MainViewModel : ViewModel …Issue #357
generic/Adapter.kt
package com.onmyway133.generic
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView
abstract class Adapter<T>(var items: …Issue #351
From Gradle tips and recipes, Configure project-wide properties
For projects that include multiple modules, it might be useful to define properties at the project level and share them across all modules. You can do this by adding extra …
Issue #349
build.gradle
dependencies {
classpath 'android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0-alpha05'
}
app/build.gradle
apply plugin: 'androidx.navigation.safeargs'
dependencies {
def navigationVersion …Issue #338
Gradle uses Groovy and it has ext, also known as ExtraPropertiesExtension
Additional, ad-hoc, properties for Gradle domain objects.
Extra properties extensions allow new properties to be added to existing domain objects. They act like …
Issue #285
settings.gradle.kts
include(":app")
build.gradle.kts
import org.gradle.kotlin.dsl.apply
import org.gradle.kotlin.dsl.dependencies
import org.gradle.kotlin.dsl.kotlin
import org.gradle.kotlin.dsl.*
import …Issue #273
Original post https://hackernoon.com/using-bitrise-ci-for-android-apps-fa9c48e301d8
CI, short for Continuous Integration, is a good practice to move fast and confidently where code is integrated into shared repository many times a day. …
Issue #257
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. It automates the process of checking …
Issue #188
Get error com.google.android.gms.common.api.ApiException: 10 with google_sign_in package.
Read https://developers.google.com/android/guides/client-auth
Certain Google Play services (such as Google Sign-in and App Invites) require you to …
Issue #184
Get error javax.net.ssl.SSLPeerUnverifiedException: No peer certificate in Android API 16 to API 19
Read about HTTPS and SSL https://developer.android.com/training/articles/security-ssl Check backend TLS …
Issue #152
This is the part 2 of the tutorial. If you forget, here is the link to part 1.
Link to Github
In the first part, we learn about the idea, the structure of the project and how MainActivity uses the MainLayout. Now we learn how to actually …
Issue #151
This post was from long time ago when I did Android
I can’t deny that Facebook is so amazing, they made trends and people want to follow. That is the case of the sliding menu.
Searching many threads on SO, like these create android …
Issue #123
From https://kotlinlang.org/docs/reference/coroutines.html
To continue the analogy, await() can be a suspending function (hence also callable from within an async {} block) that suspends a coroutine until some …
Issue #109
People advise against storing keys inside build.gradles. We should store them on 1Password and populate our gradle.properties, so don’t track this file in git. Here is .gitignore file
*.iml
/build
/gradle.properties …Issue #108
There’s always need for communication, right 😉 Suppose we have OnboardingActivity that has several OnboardingFragment. Each Fragment has a startButton telling that the onboarding flow has finished, and only the last Fragment shows …