Recent questions tagged Dart

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dart - flutter ListView scroll to index not available

What I needed: I want to scroll a list by some index, how can i do that. What I know: scrollToIndex should ... how can we scroll to any index? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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934 views

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dart - When I select a Textfield the keyboard moves over it

When i select a Textfield, the keyboard is going to be shown but the keyboard hide my selected TextField. Does someone have a solution? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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943 views

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dart - Flutter: Ignore touch events on a Widget

I want to have a blurred image on top of my other widgets, however, I cannot interact with the widgets below it when I do that. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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895 views

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dart - Dartlang wait more than one future

I want to do something after a lot of future function done,bu I do not know how to write the code in dart? ... how to write those code in dart? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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dart - Custom AppBar Flutter

Im trying to achieve something like the following, I'm very new to flutter so I couldn't figure it out. I ... someone help me out? Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

dart - How to Save Image File in Flutter ? File selected using Image_picker plugin

I am really confused. Flutter is awesome but some time is stuck the mind All the code are done. selected file ... I can't get save methodology. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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907 views

1 answer

dart - How to set state from another widget?

I'm trying to change the state from a different widget in Flutter. For example, in the following example I ... achieving this is in Flutter? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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993 views

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dart - Flutter StreamBuilder vs FutureBuilder

What is the main difference between StreamBuilder and FutureBuilder. What to use and when to use? What are the ... changes in a dynamic list? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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dart - Failed Assertion Error in Flutter Unit Test

Unit code, that I want to test: imports ... class TextHolder extends StatelessWidget{ const TextHolder({ Key key, ... should fail, if someone sends null value to text property...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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