kotlinlang #android

I see what you mean. I'll have to think about what I can do about that last part, because I don't really want to set it to public yet on github. It's not yet at that point (a lot of missing functionality and no tests to speak of yet). But thank you for your time so far! It's nearing 2am here, so I'm off for tonight.

smcvb

02/08/2017, 9:33 AM

@smcvb has left the channel

koufa

02/09/2017, 12:39 PM

I have a problem implementing parcelable in Kotlin. I have two Kotlin classes say

class A(var b: B)

and

class B

. I want to implement parcelable for this class hierarchy but I get an IllegalArgumentException when I try to get the classloader like this:

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b = parcel.readParcelable(B::class.java.classLoader)

anthonyeef

02/09/2017, 12:41 PM

Do I really need to add

RxKotlin

as project dependency if I want to play

RxJava

with Android? Or just the normal

RxJava

RxAndroid

is already enough?

miha-x64

02/09/2017, 12:42 PM

@koufa show your stack trace and `B.Companion.CREATOR`‘s code.

lupajz

02/09/2017, 12:43 PM

@anthonyeef RxKotlin is just bunch of extension functions, that you can copy over to your project if you need some of them

anthonyeef

02/09/2017, 12:44 PM

Got. Thx buddy !

koufa

02/09/2017, 12:45 PM

@miha-x64 The B.Companion.CREATOR code:

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inline fun <reified T : Parcelable> createParcel(
        crossinline createFromParcel: (Parcel) -> T?): Parcelable.Creator<T> =
        object : Parcelable.Creator<T> {
            override fun createFromParcel(source: Parcel): T? = createFromParcel(source)
            override fun newArray(size: Int): Array<out T?> = arrayOfNulls(size)
        }

koufa

02/09/2017, 12:45 PM

and

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companion object {
            @JvmField @Suppress("unused")
            val CREATOR = createParcel(::B)
        }

koufa

02/09/2017, 12:49 PM

and stacktrace:

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java.lang.RuntimeException: Unable to start activity ComponentInfo{com.test_app.debug/com.test_app.activities.ProfileActivity}: java.lang.IllegalStateException: parcel.readParcelable(Pl…::class.java.classLoader) must not be null at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3254) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350) at android.app.ActivityThread.access$1100(ActivityThread.java:222) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) Caused by: java.lang.IllegalStateException: parcel.readParcelable(Pl…::class.java.classLoader) must not be null at com.test_app.models.B.<init>(B.kt:0) at com.test_app.models.B$$special$$inlined$createParcel$1.createFromParcel(ParcelUtils.kt:13) at com.test_app.models.B$$special$$inlined$createParcel$1.createFromParcel(ParcelUtils.kt:8)

sss

02/09/2017, 1:44 PM

is anyone implementing syncadapter in kotlin ? I really dont want to.. but it seems as the recommended way to sync data in a background/power-efficient way

Rob

02/09/2017, 2:35 PM

@sss I would recommend using https://developer.android.com/reference/android/app/job/JobScheduler.html

sss

02/09/2017, 2:36 PM

@Rob unforunately need to support android 4.0.3 onwards. asian markets

Rob

02/09/2017, 2:41 PM

@sss Then here are other options https://github.com/firebase/firebase-jobdispatcher-android

sss

02/09/2017, 2:54 PM

@Rob do you think that serves the purpose of syncadaper? i have been unsure of that. especially being power efficient, network aware, etc

lupajz

02/09/2017, 3:13 PM

@sss I would only try to use sync adapter in case I have to deal with Account of some sort (God I hope this day never comes), but instead FB Job Dispatcher is the way to go in terms of being power efficient

ralf

02/09/2017, 5:48 PM

You cannot use the jobdispatcher for Asian markets. We had the same issue and came up with this library: https://github.com/evernote/android-job That should work for you

ralf

02/09/2017, 5:49 PM

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An utility library for Android to run jobs delayed in the background. Depending on the Android version either the JobScheduler, GcmNetworkManager or AlarmManager is getting used.

nitrog42

02/09/2017, 7:58 PM

ahah weirdly today I was looking for a job library too

nitrog42

02/09/2017, 7:59 PM

android-job is ok but there is also https://github.com/yigit/android-priority-jobqueue which is great ! (like if you prefer background job to deferred job)

niklas

02/09/2017, 8:44 PM

@niklas has left the channel

gildor

02/10/2017, 1:00 AM

@nitrog42 Also author of this library is @yigit as well as one of DataBindings creators ❤️

nitrog42

02/10/2017, 8:47 AM

well now I’m confident about the quality of this library !

bts.rybicki

02/10/2017, 9:01 AM

you can take a look here: http://stackoverflow.com/questions/33551972/is-there-a-convenient-way-to-create-parcelable-data-classes-in-android-with-kotl

bts.rybicki

02/10/2017, 9:01 AM

oh fk

bts.rybicki

02/10/2017, 9:02 AM

apparently it's a response for a message from yesterday, I'm sorry 😄

pawegio

02/10/2017, 9:22 AM

and I recommend https://github.com/nsk-mironov/smuggler that uses transform API for injection and no annotations are needed

marcinmoskala

02/10/2017, 11:51 AM

I will just leave it here 🙂 https://github.com/MarcinMoskala/ActivityStarter

👍 1

miha-x64

02/10/2017, 11:53 AM

Looks handy 🙂