ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: 10 Essential React Native Tips Every Developer Must Know

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You might have worked with React Native for quite some time, but do you really know all the ins and outs?

There are some really small nuggets of wisdom in the React Native docs

or from the day -to -day use that I want to share with you,

so here are 10 practical tips that you can use in your next

React Native project.

The first one is a real quick one about lists and something I shared before.

If you have an input here and you want to hide that keyboard, there's a simple thing that you can add to your list.

So I'm using a flat list here and you can now simply go ahead

and add the keyboard dismiss mode and set it to on drag.

As a result, I can drag the list and it will automatically close the hardware keyboard whenever I do the drag.

Additionally, by the way, you can also quickly make this a really cool animated list.

So I can add and remove things.

But let's just change this to an animated flat list from React Native Reanimated.

And then let's add the item layout animation and let's import the linear transition.

So now I should be able to have a smooth transition whenever I remove items

or add items with just two little changes to an animated flatlist

and the item layout animation and I can also on swipe close my keyboard.

The second tip is about the pressable component.

In most of my tutorials you're gonna see me use the touchable opacity which works great as a button replacement.

However if you are looking for a more extensive

and future -proof way to handle touch base input check out the pressable API

and if you go into the pressable you see

that there's a lot more fine -tuning

you can do like on press in on press out where

you can change the state of your components let's do a quick example i will just change these items

which are currently touchable opacity uh item to oppressable

and instead of just using styles item i can actually now use a function where i use the pressed state

and use that to set either the opacity

or for example the background color

and you can even use

this press state inside the child values here where I currently have the text of the pressable component.

As a result, I can now fine -tune exactly how the click event on

that button and how especially the press event works instead of just using a touchable opacity.

Tip number three is about dark modes and the appearance of our application.

Did you know that you can simply wrap your application using the theme provider from React Navigation

and then include the default theme

and the dark theme to automatically style the elements from react navigation

so in this case you're gonna see

that both the status bar uh the top area up here

and even the background here

because it's using the default background color are changing once i switch the colors here in the simulator this works

because we use the use color theme use color theme hook from react native

which then updates the color theme to either light or dark

and this is applied here in our check wrapped around our application.

You can then also drill this down on component level.

So whenever you want, you can simply import the color theme

and use it as a state to set different styles on your elements.

And if you manually want to toggle this, you can use the appearance API and the set color theme to manually save this.

This works nice in combination with something like async storage or MMKV.

So you can then manually on click toggle this.

However, in the simulator, this usually fails especially when I don't hit save

so now it should work and I can instantly and easily switch between light and dark mode in my app.

Tip number four is once again about colors this time it's about using platform

and the platform color API in the application

so here's a view with three different buttons and

if I go to

that same view on my Android emulator you're gonna see for some reason they look different

and the reason is

that you can use both platform select to switch between different platforms

you can actually not only have oh come on please stay open come on stay open

you can not only ah this is not possible not only switch between ios

and android but also windows mac os web or native

and then you can supply specific colors in your style sheet

and you can not only have fixed colors

but you can also see the platform color here

this is a bit more complicated to use especially figuring out the values for Android is somewhat hard

you have to get into the Android documentation but

if you're interested in this you can actually use the system colors of both iOS

and Android if you want a complete

and even more native feeling in your application tip 5 is about fonts

and especially Google fonts did you know that there's an expo package

that you can use that you can simply install

and then use all the fonts of google let's check

it out i've added the package for the frank rule libra uh font to my application to the layout

and i also use the use fonts hook to safely in

the beginning of my application load all the custom fonts

that i want to use i would usually use and use effect

and make sure fonts loaded is ready

but nonetheless i can now use them on my page inside of the font family

and as a result we see here the bold

and the medium one being applied

it has never been easier to use google fonts in your

react native application than this trust me tip number six is about images

when you use the image component

and you're loading something over the network for example a really big image like this it can sometimes take time

so if i go here it takes a millisecond

and there are sometimes images

that are even bigger now what you can do is you can actually specify a default source

and within that default source you basically set the image

that should be deployed a deployed should be displayed

while the first image is loading so

if I had it like this now I could go into the component

and you quickly saw that react native image

so I just used my local image because

that one should be instantly available you could also have like a simple loader in there as the default source

that would work as well and then you can use any kind of big image

and while it's loading just by default you display your default source in the image element.

Tip number seven is about the text element.

If you have a very long text in your application, there are different ways to improve this.

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So the first way, if you're rendering really long text, is of course have this in a scroll view.

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But sometimes you also want to limit the number of lines.

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So you can do number of lines on the text element.

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Let's set this to five.

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And this will automatically render only five lines.

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And at the end, you're going to have three dots.

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So you don't need any logic if text length is bigger than 120, then render three dots or something.

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No, you can just set the number of lines.

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However, if you at the same time also want to still show all the things of your text, because now the text of girls truncated,

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you could add a property called adjust font size to fit.

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As a result, this looks quite interesting because in our example, well, eight lines is probably not enough.

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But now we would be able to actually fit all of this in 20 lines of text

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Remember this was our initial state

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and now we would be able to render all of that using adjust font size to fit which will simply

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Specify whether fun should be scaled down automatically to fit given style constraints

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This is not always helpful, but it can be a nice fix in some of your applications

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Tip number eight is about warnings in your application

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So I recently came across a warning that was well not too interesting to me

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Let's say you got this one

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Which of course doesn't come up when I want to show it so encounter two children with the same name

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Of course, that is something you definitely want to fix

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However, sometimes there are things that you just want to ignore because they keep appearing

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Especially if you maybe do a presentation for your customer what you can do is you can simply import lockbox

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From react native we don't need these fences.

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That looks interesting and now i could go ahead

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and use lockbox uh and i got two um

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or different ways i could ignore all locks

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or i could ignore specific locks

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so in my case what i want to ignore is probably encountered uh two children with the same key

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i can now hit save and let's do a reload again

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and i go into and boom no more locks

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and of course the same would work

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if i would use uh logbox .ignorealllocks that's probably a bit more dangerous uh

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because it would hide anything that pops up in your application

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so anyway treat this carefully but if you want some mind space some quiet applications

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and nothing that pops up

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while you work on your application simply use logbox to control the logs that appear in your react native app.

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Tip number nine is about API usage and I was kinda shocked when I saw it.

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So I was using a local API on localhost port 8080

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and we see I have a simple block here where I fetch my data from API URL slash test

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and it worked perfectly fine on iOS.

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However on Android I get an error fetching data.

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Why is that the case?

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Well it turns out that localhost doesn't work on the Android emulator.

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You gonna have a bad day.

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What you can do as a result is you can add this little block at the top,

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which is kinda ugly, but if you put all of your API calls, usually in one or two files,

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into our custom hooks, that should be easy to treat.

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So in my case, I grab the environment using the node environment to make sure we're actually running in development.

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And if we're running in development and the platform is Android, I exchange and patch my API URL, which i usually got from my process environment

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so instead of using localhost port 8080 i'm now using 10 .0 .2 .2 8080 let's hit save

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and let's check out my emulator again so

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if i now go into page 9 voila we have fixed this

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and we can make api calls to localhost on both ios and android

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Just as a quick addition to this, because this might be an ugly hack, here's something else that is recommended.

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So you can also map your port using ADB or down here for ADB devices, you can map the port specifically for your emulator.

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That's probably a tiny bit better than having additional code.

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But if you just want to do a quick test, this one will get the job done.

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Tip number 10 is for all of you who want to build a production application of your React Native application using Expo.

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So usually you're gonna see you have your own custom defcline even if you do a pre -build

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It only works when your live reload is up and running

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But sometimes you just want to have the app installed and leave the room and show it to someone else

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What you can do to build this kind of standalone application is once

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you have created your pre -build with Expo Go into Xcode go up here hit edit scheme and under run configuration

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Here for the build configuration you want to select release

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Go ahead with that, build the application for your device and there's no more connection to a local server.

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Additionally you can of course do the same for Android, so open your project up with Android Studio

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and then at the bottom left you're gonna really small find something called build variants.

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Inside of build variants you see that everything here is set to debug.

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And of course for our app I can now change this to release, it would change all of these to release

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and then I can go up here

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and deploy the app to either my simulator

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or of course any kind of connected android device all right

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that brings us to the end of this quick video

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I hope you enjoyed this quick run through of 10 different things

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that I picked up over the years I took note of them

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I probably will do another video once I reach more than five

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or ten nodes again in the future

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but let me know in the comments what is something that you figured out after years of using

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React Native or you were like, why didn't I know that earlier?

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บทเรียนฝึกพูดนี้ใช้วิดีโอ “10 Essential React Native Tips Every Developer Must Know” เป็นสื่อ คำที่ถูกพูดซ้ำบ่อยที่สุด: application, color, react, native, android วิดีโอนี้มี 184 ประโยค และ 2332 คำ สำหรับฝึกพูดตาม ช่วงที่มีเสียงพูดยาว 12:00 ผู้พูดพูดเร็ว ประมาณ 194 คำต่อนาที จึงมีการเชื่อมเสียงและลดเสียงค่อนข้างมาก 84% ของคำอยู่ใน 3,000 คำที่ใช้บ่อยที่สุดในภาษาอังกฤษ ส่วนที่เหลือควรดูไว้ก่อนเริ่มฝึก

คำศัพท์สำคัญในวิดีโอนี้

คำที่ควรเรียนรู้ 15 คำจากวิดีโอ พร้อมคำอ่านและความหมาย:

คำศัพท์	คำอ่าน	ความหมาย
android คำนาม	/ˈænˌdɹɔɪd/	แอนดรอยด์
font คำนาม	/fɑnt/	ฟอนต์
element คำนาม	/ˈɛləmənt/	ธาตุ
ignore คำกริยา	/ɪɡˈnɔː/	เมิน
keyboard คำนาม	/ˈki.bɔɹd/	แป้นพิมพ์
custom คำนาม	/ˈkʌstəm/	แบบแผน, ธรรมเนียม
dragon คำนาม	/ˈdɹæɡən/	มังกร, นาค
hook คำนาม	/hʊk/	ตะขอ, เบ็ด
import คำนาม	/ˈɪm.pɔɹt/	การนำเข้า
package คำนาม	/ˈpæk.ɪd͡ʒ/	หีบห่อ, ห่อ
select คำกริยา	/sɪˈlɛkt/	คัดเลือก
ugly คำคุณศัพท์	/ˈʌɡli/	น่าเกลียด
tune คำนาม	/tjuːn/	ทำนอง
instantly คำกริยาวิเศษณ์	/ˈɪnstəntli/	ทันที
wrap คำกริยา	/ɹæp/	ห่อ

ไวยากรณ์ในวิดีโอนี้

โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:

โครงสร้าง	ในวิดีโอ
Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ	is applied · being applied · should be deployed
Present perfect have/has + กริยาช่อง 3 — เหตุการณ์ในอดีตที่ยังเกี่ยวข้องกับปัจจุบัน	have fixed · i've added · has never been

การออกเสียงที่ควรระวัง

ผู้พูดใช้รูปย่อและรูปลดเสียง 29 ครั้ง เช่น you're, gonna, don't ให้พูดแบบสั้นตามที่ได้ยิน

เสียง “th”: smooth /smuːð/, nonetheless /ˌnʌnðəˈlɛs/
เสียง “sh” และ “zh”: transition /tɹænˈzɪʃ.ən/, animation /ˌæn.ɪˈmeɪ.ʃən/, navigation /nævɪˈɡeɪʃən/, configuration /kənˌfɪɡ.əˈɹeɪ̯.ʃən/, shock /ʃɔk/
คำยาว — ลงเสียงหนักให้ถูกพยางค์: manually /ˈmænj(u)əliː/, simulator /ˈsɪmjəˌleɪtɚ/, animation /ˌæn.ɪˈmeɪ.ʃən/, navigation /nævɪˈɡeɪʃən/, configuration /kənˌfɪɡ.əˈɹeɪ̯.ʃən/

เสียงที่คนไทยมักออกเสียงยาก:

เสียงท้ายคำ — ออกเสียงให้ครบ ไม่เปลี่ยนเป็นตัวสะกดแบบไทย: package /ˈpæk.ɪd͡ʒ/, fetch /fɛt͡ʃ/, practical /ˈpɹæk.tɪ.kəl/, usage /ˈjuːsɪd͡ʒ/, fence /fɛns/
/v/ — ไม่ใช่ /w/ ให้ฟันบนแตะริมฝีปากล่าง: navigation /nævɪˈɡeɪʃən/, variant /ˈvæɹi.ənt/, server /ˈsɝvɚ/, provider /pɹəˈvaɪ.də(ɹ)/, voilà /(v)wɑˈlɑ/
/z/ — เสียงก้อง ไม่ใช่ /s/: transition /tɹænˈzɪʃ.ən/, presentation /ˌpɹɛzn̩ˈteɪʃn̩/, wisdom /ˈwɪzdəm/

วิธีฝึกกับวิดีโอนี้

ฟังวิดีโอให้จบหนึ่งรอบโดยยังไม่ต้องพูด แล้วจดคำที่ยังไม่รู้จัก
เริ่มที่ความเร็ว 0.75× พูดตามทีละประโยค แล้วกลับไปใช้ความเร็วปกติเมื่อเริ่มคล่อง
อัดเสียงตัวเองแล้วเทียบกับต้นฉบับ โดยสังเกตคำอย่าง android, font, element เป็นพิเศษ

เทคนิค Shadowing คืออะไร?

Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ

เทคนิค shadowing: อ่านคู่มือฉบับเต็มทีละขั้นตอน →

ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: 10 Essential React Native Tips Every Developer Must Know

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