How does UnmodifiableListView works?
Anonymous Quiz
22%
Locks the list and makes it unmodifiable
37%
Copies the list and makes it unmodifiable
41%
Stores the reference to the list and acts as an unmodifiable list
Use of Service Locator (i.e. GetIt) makes the code testable, clean and predictable.
Anonymous Quiz
29%
Yes
71%
No
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Briefly about render objects and their responsibilities:
Linkedin
Michael Lazebny on LinkedIn: #flutter #interesting #tipoftheday #mobile #uiux
Render objects in Flutter
A vital part of Flutter's framework is its rendering engine, which paints the visuals you see on the screen. At the heart of this…
A vital part of Flutter's framework is its rendering engine, which paints the visuals you see on the screen. At the heart of this…
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A few days ago I decided to create two scopes for the starter. Theme and Locale scope, so you can switch the themes, create custom ones without any effort. Also you can switch languages in the app.
I believe it would be really beneficial to have these scopes😪
I believe it would be really beneficial to have these scopes😪
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Is it possible to send non-primitives between Isolates?
Anonymous Quiz
39%
Yes, you can send different objects between Isolates in the same Isolate Group.
61%
No, this is not possible because only primitives can be sent via SendPorts.
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Today I learned an interesting algorithm for finding the majority element.
The Boyer-Moore majority algorithm is a popular algorithm for finding the majority element in a list of integers. The majority element in an array (or list) is an element that appears more than n/2 times where n is the size of the array.
Here's a simple way to describe the Boyer-Moore Voting Algorithm:
1. Start with an initial candidate and a counter set to 0.
2. Iterate over the list of numbers.
3. For the current number: If the counter is zero, set the current number as the candidate.
4. If the current number is the candidate, increment the counter. Otherwise, decrement the counter.
5. The candidate will be the majority number.
#dart #leetcode #tipoftheday #algorithm
The Boyer-Moore majority algorithm is a popular algorithm for finding the majority element in a list of integers. The majority element in an array (or list) is an element that appears more than n/2 times where n is the size of the array.
Here's a simple way to describe the Boyer-Moore Voting Algorithm:
1. Start with an initial candidate and a counter set to 0.
2. Iterate over the list of numbers.
3. For the current number: If the counter is zero, set the current number as the candidate.
4. If the current number is the candidate, increment the counter. Otherwise, decrement the counter.
5. The candidate will be the majority number.
#dart #leetcode #tipoftheday #algorithm
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Mobile Tech
In the second part of advanced questions I will cover these themes: - Pattern matching - Immutability - Isolates, heap, isolate groups - GC - Errors & exceptions - differences and proper handling - What is a widget, different types - Inherited Widget, its…
The second section of the advanced questions is due to be completed tomorrow.
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The second part is coming!
https://lazebny.io/flutter-advanced-two/
https://lazebny.io/flutter-advanced-two/
Michael Lazebny
Advanced Flutter Interview: Part two
This is the second article in a big series on advanced questions. I feel like it will be a permanent section on my blog 😁. If you haven't read the first part, I'd recommend going there first. Subscribe to my telegram channel and LinkedIn to not to miss exciting…
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Media is too big
VIEW IN TELEGRAM
Implemented both theme scope and locale scope for Sizzle Starter
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If previous key in widget doesn't match the new one, then
Anonymous Quiz
55%
Element will become defunct and a new one will be created.
14%
Element will become inactive, inserted into the tree and reactivated.
32%
If widget runtimeType matches then element will be reused and accept the new configuration.
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Choose themes you are interested in (Top 3 wins) [Advanced Questions]
Final Results
50%
Streams, transformers, rxDart and implementations
39%
Futures, types, zones, implementations
43%
How does the routing work? Navigator, routes, pages, hero animations
14%
Focus System, focus scope, nodes, actions, shortcuts
11%
Gestures: hit testing, fighting, recognizers
36%
Render Objects, custom painter, parent data, layout, composing, painting, intrinsics
39%
Flutter Architecture: layers, embedding, method channels
43%
BLoC pattern
25%
Vieport & Scrollable: slivers, list views, sliver protocol
46%
State restoration, buckets, serialization
Mobile Tech
Choose themes you are interested in (Top 3 wins) [Advanced Questions]
The results are:
1. Streams
2. Navigator
3. State restoration
1. Streams
2. Navigator
3. State restoration
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Should BLoC know anything about its consumers?
Anonymous Quiz
10%
Yes. It addresses their requirements and may have states such as ShowDialogState.
90%
No. Its duty is to do business logic and be consumer-agnostic.
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Navigator uses _ under the hood to show routes.
Anonymous Quiz
46%
Stack
22%
Overlay
17%
IndexedStack
14%
Custom implementation based on multi child render object
The next article will be about streams: how do they work under the hood, comprehensive analysis. Transformers, generators, subscriptions, listeners. Stream controllers and rxdart.
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What does `external` keyword mean in Dart?
Anonymous Quiz
11%
Element can be loaded later (deferred)
89%
Used internally to mark element that has different implementations for platforms(e.g. VM or dart2js)
Many people follow the official Flutter channel, and there is a well-known rubric called Observable Flutter, which invites the most renowned contributors and open-source activists.
Recently, Dane Mackier, the author of Stacked, presented the library and I aim to provide an overview of his brainchild. My objective is to inform and increase awareness of the architecture and principles presented, rather than critique.
Read about it in my article. This should be interesting for folks who don't use stacked as well.
Recently, Dane Mackier, the author of Stacked, presented the library and I aim to provide an overview of his brainchild. My objective is to inform and increase awareness of the architecture and principles presented, rather than critique.
Read about it in my article. This should be interesting for folks who don't use stacked as well.
Michael Lazebny
Stacked Framework: Critique & Ways to Improve
Stacked
Many people follow the official Flutter channel, and there is a well-known rubric called Observable Flutter, which invites the most renowned contributors and open-source activists.
Recently, Dane Mackier, the author of Stacked, presented the library…
Many people follow the official Flutter channel, and there is a well-known rubric called Observable Flutter, which invites the most renowned contributors and open-source activists.
Recently, Dane Mackier, the author of Stacked, presented the library…
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