Nahea i te faanaho i te faanahoraa Android Apps

Mai te mea e, te hinaaro ra outou e ite hau atu â no ni'a i te faanahoraa Android, E tauturu rahi teie buka ia outou. E faaite te reira ia outou i te mau tumu parau faufaa roa a'e e ti'a ia outou ia ite i te taime a hamani ai outou i te hoê faanahoraa Android aravihi. Mai te haaputuputuraa haamaramaramaraa e tae atu i te faaauraa i te mau haamaramaramaraa, Te mau rave'a i muri mai, e te mau rave'a Itenati, E faaite teie buka ia outou i te mau mea atoa e titauhia ia outou ia ite no te hamani i te hoê faanahoraa toro'a. E tauturu te buka ia outou ia haapii nahea ia faaohipa i te Android Studio no te hamani i ta outou faanahoraa.

Te faanahoraa i ni'a i te mau mea

E ere i te mea fifi roa ia faaohipa i te Java no te hamani i ta outou mau faanahoraa Android, ia au i te ite e te mau tiaturiraa o te feia faanahonaho i te OO. Te faataa ra teie buka i te mau tumu no te faahoturaa i te Android, e tae noa'tu i te mau faaohiparaa hoho'a, Te mau faanahoraa ohipa, te faaoreraa, tamataraa, e te mau pu haamaramaramaraa SQLite. E haapii atoa outou no ni'a i te mau poro'i Android, Te faanahoraa XML, JSON, e te aho. E fana'o outou i te hoê ite maitai no ni'a i te mau rave'a aravihi apî, e tae noa'tu i te Android SDK.

Java e Kotlin, e piti reo matarohia a'e no te hamaniraa i te mau faanahoraa Android. O Java te reo tahito roa a'e no te hamani i te mau faaohiparaa, tera râ, e rave rahi feia aravihi o te fariu atu nei i ni'a ia Kotlin no ta'na mau papa'iraa parau poto e te ohie o te haapiiraa. Java, Noa'tu e, o te reira te reo matarohia a'e no te hamani i te mau faaohiparaa Android, E mea matau - maitai - hia noâ no ta ' na mau fare buka rahi e ta ' na mau haaputuputuraa buka. Kotlin, i te tahi a'e pae, Ua hamanihia e JetBrains, taua noâ taiete ra o tei hamani ia Java.

Ua riro te faanahoraa i ni'a i te hoê rave'a no te faanaho i te mau haamaramaramaraa i roto i te hoê rave'a tano. E mau haamaramaramaraa e e haerea taa ê to te mau mea atoa, e ua faataahia te reira atoa na roto i te mau piha haapiiraa. Ei hi'oraa, I roto i te hoê piha haapiiraa BankAccount, te vai ra te mau haamaramaramaraa e te mau rave'a no te tape'a e no te tumâ i te mau moni. E mau rave'a atoa ta teie mau tao'a mai te deductFromAccount() e farii i te i'oa o te taata tape'a moni(). E mea faufaa roa teie mau ravea no te faatere maitai i te hoê faanahoraa BankAccount.

O Java te reo matamua i faaohipahia no te hamani i te mau faanahoraa Android. Teie râ, mai te peu e ua matau - maitai - hia o Kotlin i roto i te ao Android, E rave rahi mau taiete aravihi rahi o te faaohipa nei i teie reo no ta ratou mau opuaraa. Twitter, Netflix, e o Trello, ua patuhia te mau mea atoa e Kotlin. Teie râ, ua faaohipa te taatiraa no te mau rave'a haaparareraa parau ia Java no te faaohipa i te Android OS. Noa ' tu e e nehenehe te Java e haaputuputuhia i roto i te bytecode e e faaohipahia i nia i te JVM, aita to'na e mau faanahoraa ha'iha'i roa mai te C++.

Taata horo'a ohipa

No te haamaitai i te taairaa e te mau tuhaa o te mau faanahoraa Android, E nehenehe ta outou e faaohipa i te taata horo'a ohipa. E hamani teie fare buka i te mau submenus hi'opo'a e e rave i te mau ohipa ti'a. E faaite te reira ia'na iho i roto i te buka rave'a tauturu XML. Na roto i te faaôraa ' tu i teie fare buka i roto i ta outou faanahoraa, E nehenehe ta outou e faaite i te mau haamaramaramaraa i to outou mau melo, e tae noa'tu i te mau hoo. No te tahi atu mau haamaramaramaraa, hi'o i te tahua itenati. I raro nei, te vai ra te tahi o te mau piha haapiiraa ShareActionProvider faaohipa-pinepine-roa-hia:

E faaohipa te piha haapiiraa no te horo'a i te ohipa i te ACTION_SEND-Intent no te rave i te ohipa i ni'a i te reira. Ia tairi ana'e te hoê taata faaohipa i te tapa'o faanahoraa i roto i te afata ohipa, E faaite mai te faanahoraa i te hoê tabula no te mau faaohiparaa. Ia oti ana'e teie ohipa, E faaho'i te faanahoraa i te taata faaohipa i ta'na iho faanahoraa Android. E mea ohie e e mea tano ia faaohipa i te fare buka ShareActionProvider.

Mai te mea e, e hinaaro outou e faaite i te mau mea i roto i ta outou faanahoraa i te tahi atu mau taata, e titauhia ïa ia outou te hoê taata horo'a no te mau faanahoraa Android. Ua riro te Share-Intent ei tuhaa faufaa roa no te faahoturaa i te Android e te horo'a nei i te hoê rave'a tano, Mea ohie roa ia faaite i te mau haamaramaramaraa i vetahi ê. E mea faufaa ia ite e, e titauhia te parau faati'a no te tai'o e no te papa'i i te mau haamaramaramaraa no te ShareActionProvider. Ei hi'oraa, E ti'a ia outou ia farii i te mau ti'araa admin no ta outou faanahoraa.

No te faaohipa i teie tuhaa faaiteraa i roto i ta outou faanahoraa, E mea ti'a ia outou ia amui atu i te taata horo'a ohipa i roto i te afata ohipa. I muri iho, A horo'a i te mau mea i roto i te hoê Ohipa, e na te ShareActionProvider e rave i te toea. I roto i ta outou faanahoraa Gallery, e nehenehe atoa ta outou e faaohipa i te ShareActionProvider, o te hoê ïa hi'oraa maitai no te faaite ia outou nahea ia faaô atu i teie ohipa i roto i ta outou faanahoraa. I roto i ta tatou buka arata'i Action Bar, e nehenehe ta outou e tai'o hau atu â no ni'a i teie ohipa.

Te mau piiraa no ni'a i te oraraa o te ohipa

Ia hamani oe i te hoê ohipa apî i ni'a i te Android, e ti'a ia outou ia faaohipa i te mau Piiraa no te oraraa no te haapapû e, e tamau noa te reira i te rave i te ohipa i muri a'e i to te hoê taata faaohipa faaru'eraa i te faanahoraa. Mea faufaa roa ia faaohipa i teie mau ravea no te arai i te mau taheraa toto, o te nehenehe e faaino i te aravihi o to outou faanahoraa. A hi'o atoa, ia faaohipa ana'e outou i teie mau ravea, e ti'a ia outou ia ape i te raveraa i te mau roro uira rahi i roto i te onPause() no te mea e nehenehe te reira e faataime i te tauiraa mai te hoê ohipa i te tahi atu, o te nehenehe e faatupu i te ite ino o te taata faaohipa.

E nehenehe te mau piiraa no te oraraa e tauturu ia outou ia rave i teie opuaraa na roto i te piiraa i te mau ohipa taa ê i roto i te mau tuhaa atoa o te oraraa o te hoê ohipa. A tahi, onHamani() ia hamanihia mai te hoê ohipa no te taime matamua. Te haamataraa() I te rahiraa o te taime, e peehia te mau piiraa i muri mai i te onResume e te onPause. I roto i te rahiraa o te mau tupuraa, E piihia te piiraa onResume na mua a'e i te rave'a onStop.

Ia faaea ana'e te hoê ohipa, te onPause() E tape'a te rave'a i te feia faaroo atoa e e haaputu i te mau haamaramaramaraa no ni'a i te faaohiparaa. Te onPause() e i ni'a i te() methods are guaranteed to be called before an activity ends. The onResume() method is called when an activity resumes and its configuration states change. The Android system will recreate the activity with the new configurations. Mai teie te huru, your app’s users will be able to resume their activity and use it.

Activity Lifecycle Callbacks are a great way to ensure that your application is working in the background. This callback is called whenever an activity goes into the background. You can override this method by calling the method on the super class. Remember to call this method when necessary as not calling it will lead to your app to crash or get stuck in a strange state. Tera râ,, make sure you call the onPause() method when you need to.

Refactoring tools

If you develop Android apps, e ti'a ia outou ia feruri i te faaohipa i te hoê rave'a faaapî. E roaa te mau rave'a no te faaapî na roto i ta outou piha hautiraa Android aore ra na roto i te Xcode. E rave rahi mau ravea no te faaapî i te Android Studio, e tae noa'tu i te i'oa faahou i te mau piha haapiiraa Java, mau faanahoraa, mau hoho'a, e te mau rave'a. E rave rahi mau maitiraa ta teie mau rave'a no te faaapî, e e hi'opoa tatou i te mau mea atoa i roto i te mau rave'a hamaniraa maa i raro nei.

E nehenehe te mau rave'a no te mau faaohiparaa Android e haamaitai i te huru o ta outou waehere e e faaiti i te mau honi o te waehere. E nehenehe te opaniraa i te mau ohipa I/O e ohipa ino i nia i te pahonoraa a te hoê niuniu afaifai, e te faaohiparaa i te hoê paturaa async tano ore e nehenehe e faatupu i te mau fifi mai te mau taheraa toto o te haamana'oraa, te ito maumau, e te mau rave'a maumau. E roaa te mau rave'a no te faaore i teie mau fifi na roto i te faaho'i-faahou-raa mai i te waehere async i roto i te waehere anairaa. A refactoring tool like ASYNCDROID can extract long-running operations into Android AsyncTask.

Refactoring tools for Android applications can also improve legacy desktop applications. They allow developers to change the codebase without affecting the entire lifecycle of a mobile application. Taa ê noa'tu i te reira, developers can also clean up selective code layers, thereby improving the overall code quality and the user experience without affecting the mobile app’s development cycle. Most developers are familiar with Android development lifecycle, and using refactoring tools for Android will streamline the process of porting legacy applications to mobile devices.

Refactoring can be tricky for apps that are in production, but it is an important task for developers. A faaite i ta outou huriraa apî i te hoê pǔpǔ iti o te feia faaohipa no te tamata i to ' na haerea e to ' na ohipa. Mea faufaa atoa ia hi'opoa i te aravihi o te faanahoraa e te faito o te tufaraa hou a haere atu ai i mua i te huiraatira. Noa ' tu e te vai ra te tahi mau maitai o te mau ravea apî no te Android, E mea ti'a ia outou ia haamana'o noa e, mai te mea e, aita e titauhia, e mea maitai a'e ia ape i te papa'i faahou i te mau waehere.

Taata hamani i te faanahoraa MIT

Ua riro te MIT App Inventor ei vahi faahoturaa taa ê (IDE) no te mau faaohiparaa i te itenati. Ua horo'ahia mai i te omuaraa e Google, I teie nei, te tapeahia ra te reira e te Fare Haapiiraa Tuarua no Massachusetts. Na roto i te IDE, e mea ohie roa na te feia hamani i te hamani i te mau faanahoraa no te mau tahua itenati e rave rahi. E mea faufaa roa te rave'a MIT App Inventor no te hamani i te mau faaohiparaa Android. E rave rahi mau ravea e mau fare buka i roto, e tae noa'tu i te hoê vahi faanahoraa hoho'a no Android.

Ua riro atoa te MIT App Inventor ei ma'itiraa faahiahia roa no te feia haamata e te mau orometua haapii e haapii ra i te mau fare haapiiraa. No te ohie o te faaohiparaa i te faanahoraa, e mea maitai roa ïa no te hamani oioi i te mau hoho'a no te mau faaohiparaa afa'ifa'i. E nehenehe te mau piahi e hamani e e tamata i ta ratou mau ohipa i ni'a i ta ratou iho mau rave'a afa'ifa'i, eiaha râ ia tapeahia i roto i te piha roro uira. No te tauturu i te feia hamani i te hamani i te mau faanahoraa afa'ifa'i taa ê e te mau rave'a IOT, ua faaite mai te MIT e rave rahi mau faarahiraa. Taa ê noa'tu i te reira, Ma te faaohipa i teie rave'a, e nehenehe ta te feia hamani e papa'i i te mau tuhaa matauhia.

Ua riro te MIT App Inventor ei rave'a no te tauturu i te mau piahi ia hamani i te mau faaohiparaa afa'ifa'i. E hoho'a to'na e te mau hoho'a tano o te faati'a i te feia e faaohipa ra ia patu e ia tamata i ta ratou mau faanahoraa i te mau taime mau. Me ta'na huriraa tamoni ore, students can meet other like-minded developers and ask questions. The community is supportive and helpful. But to make the most of this program, students must have a good Internet connection.