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You'd better to visit @kotlin_start in this case, basically init block is a primary constructor body

Primary constructor? How

13:06пожаловаться #1

Guys, anyone loves to read source code?
I am reading Telegram source code.
Telegram excessively used FrameLayout
I just read, it is used to block a part of screen

13:11пожаловаться #2

When we delete chats, the pop up bar with timer and action button, like Undo
Used framelayout

13:12пожаловаться #3

FrameLayout, LinearLayout, ImageView TextView and Runnable

13:13пожаловаться #4

They can use Toast with custom views, but deprecated but Snackbar accept custom views

13:14пожаловаться #5

My question is, why did they prefer Extended FrameLayout? Rather Snackbar

Vladimir Petrakovich in Kotlin Community

13:15пожаловаться #6

My question is, why did they prefer Extended FrameLayout? Rather Snackbar

Why are asking this in a Kotlin chat?

13:17пожаловаться #7

Vladimir Petrakovich

Why are asking this in a Kotlin chat?

Why are you ignoring my Kotlin questions? And jumping on Android related questions?

13:22пожаловаться #8

Alexander Levin in Kotlin Community

Why are you ignoring my Kotlin questions? And jumping on Android related questions?

Kotlin-related questions are currently answered in @kotlin_start channel for you. Things about Telegram is very Android related and that's not the topic of the chat. Please stick to the topic :)

13:26пожаловаться #9

Alexander Levin

Kotlin-related questions are currently answered in @kotlin_start channel for you. Things about Telegram is very Android related and that's not the topic of the chat. Please stick to the topic :)

Okay :)

13:26пожаловаться #10

You'd better to visit @kotlin_start in this case, basically init block is a primary constructor body

Actually, it is not. Init is called on class creation without relation to primary constructor.

13:28пожаловаться #11

Alexander Levin in Kotlin Community

Actually, it is not. Init is called on class creation without relation to primary constructor.

there is relation - you can use primary constructor parameters IIRC

13:29пожаловаться #12

Actually, it is not. Init is called on class creation without relation to primary constructor.

Like static block?

13:30пожаловаться #13

Alexander Levin

there is relation - you can use primary constructor parameters IIRC

I agree, but I still think it is not correct to call it a primary constructor body

13:30пожаловаться #14

Like static block?

No. Static block in java does not have anything to do with the class instance. This is one of the reasons, it was removed in Kotlin.

13:31пожаловаться #15

No. Static block in java does not have anything to do with the class instance. This is one of the reasons, it was removed in Kotlin.

Got it,

13:31пожаловаться #16

I guess, Init is just merely used to initialized properties

13:32пожаловаться #17

I guess, Init is just merely used to initialized properties

In kotlin it is discouraged, since you can initialize properties with expressions. Init is mostly used for constructor parameter check.

13:33пожаловаться #18

In kotlin it is discouraged, since you can initialize properties with expressions. Init is mostly used for constructor parameter check.

Shortly it is used to for input validation in constructor

13:35пожаловаться #19

Shortly it is used to for input validation in constructor

More or less. You can use it for more complicated initialization logic, but the experience shows that it is better to use factory methods for that.