Pehea e hoʻomaka ai i ka polokalamu Android

Ināʻoe eʻimi nei i kahiʻoihana hoʻolālā Android, Aia nā waiwai nui i loaʻa i ka pūnaewele. He kōkua nui kekahi, ʻOiai e pili ana nā poʻe'ē aʻe no nā mea hoʻomohalaʻike. E pili ana i keʻano, Ua kākauʻia nā kumuwaiwai āpau e nā loea akamai, me ka hoʻohanaʻana i nā hua'ōlelo a me nā conctexts e kōkua iāʻoe e hoʻomaopopo i nā manaʻo a me nā code. ʻOi aku ka maikaʻi e hoʻomaka me kahi puke maʻalahi a iʻole ke aʻoʻana ma mua o kou neʻeʻana i nā kumuhana hou. ʻO kēia ala, E maopopo iāʻoe e aʻo anaʻoe mai nā kumu kūpono.

Java a me Kotlin

ʻO Java lāuaʻo Kotlin he mau'ōlelo maʻamauʻelua a hiki ke hoʻohanaʻia no ka hoʻomohalaʻana o Android. Loaʻa i kā lākou mau ikaika a me nā nāwaliwali. ʻOiaiʻo Java kahi moʻomeheu lōʻihi a he nui nā pono, ʻO Kotlin he'ōlelo'ōpio me kahi mea hou aʻe i ke ala hou i ka hoʻolālā API. ʻO Kotlin wale nō ka māmā, ka nui o ka verbose, a hāʻawi i kahi helu o nā hoʻomaikaʻi ma luna o ka papa hoʻohālikeʻo Java.

ʻO Java kahi mea hana maʻamau-kumu hana maʻamau i hoʻokumuʻia ma luna o nā kumu C ++. He nui ka nui o nā hoʻohanaʻana a hoʻokuʻuʻia e nā microsystem o ka lā i loko 1995. ʻO ka hapa nui o ka inoa inoaʻo Java i kēia lā. ʻO Kotlin ka mea lanakila i ka Java a ua kūkuluʻia e ka hui i hana i ka mea i hanaʻia. He'ōlelo ikaika a me ka hana kūpono e kākoʻo ana e kākoʻo ana i nā papa he nui.

ʻOiaiʻoi aku ka maʻalahi o ka java e aʻo a hoʻohana i nā mea hoʻomaka, Loaʻa iā Kotlin kahi nui o nā pono no nā mea hoʻomohala. Ka mua, ʻOi aku ka maʻalahi o ka mālamaʻana i kahi app e pili ana, E like me keʻanoʻo Kotlin. Ka lua, Kākoʻoʻo Kotlin i nā hua'ōlelo, ka mea e hiki ai i nā mea hoʻomohala e kākau i ke code me kahi kiʻekiʻe kiʻekiʻe o ka wikiwiki ma mua o java. Ke kolu, Kotlin is easier to integrate into Gradle build scripts.

Objective-C und Swift

Although both of these programming languages can be useful for Android and iOS programming, they do have their differences. Objective-C has better documentation and a more mature ecosystem, and Swift has a more promising future. Both Swift and Objective-C support UI frameworks, which makes development easier and faster. While Swift is not as mature as Objective-C, it is growing in popularity and has more tools for optimizing code.

Both Objective-C and Swift are open-source languages, so developers can use them for free. Swift was introduced at the 2014 Worldwide Developers Conference, and is a general-purpose language that works across Apple platforms and Linux. It is a more modern language than Objective-C, a hoʻohanaʻiaʻo ia i kaʻenehana maikaʻi loaʻo LolVm. ʻO ka wikiwiki a me nā pahuhopu-c he koho nui no nā mea hoʻomohala e makemake e hoʻomohala i nā polokalamu no nā polokalamu kelepona.

ʻO nā'ōleloʻeluaʻelua i loaʻa i ko lākou mau pono a me nā hemahema. E maʻalahi ke maʻalahi, a emi iho na hewa. ʻo kahi laʻana, I ka pahuhopu-c, Hiki i nā mea hoʻomohala ke kiʻi i kahi hōʻailona kaula a iʻole ke kauoha o nā laina. I loko o ka swift, Nā kiʻi paʻi kiʻi a me nāʻikepili i hoʻoiliʻia, e maʻalahi ai i nā mea hoʻomohala e mālama i ke code. Kahi mea hou aʻe, He liʻiliʻi nā faila, Ke maʻalahi nei ka hoʻokeleʻana. He maʻalahi ka'ōlelo hou e aʻo, a me nā mea hoʻomohala iʻike muaʻia i ka pahuhopu-c a iʻole c code hiki ke hoʻohana me ka pilikiaʻole.

Mea hana

ʻO ka mea hana noiʻi no ka Pūnaeweleʻo Android no ka hoʻohanaʻana i ka pūnaewele pūnaewele. Ua hoʻoikaikaʻia kona hoʻolālāʻana e ka scratch a e hoʻokuʻu iāʻoe i nā mea nānā a hāʻule i nā meaʻike e kūkulu i nā noi. Eʻae nō hoʻi iāʻoe e hana i nā pāʻani. Ua hoʻokumuʻia ka papahana e Google a mālamaʻia e ka Massachusetts Institute of Technology. He ala nui ia e hoʻomaka ai me ka hoʻonohonohoʻana o Android. ʻOiaiʻo kāna maʻalahi, Hāʻawi ia i nā hiʻohiʻona ikaika e hana i nā polokalamu Android.

E hana i nā noi a me nā noi, Ponoʻoe e hoʻohana i ka hoʻohanaʻana i nā kiʻi a me nā'āpana kāmera. Hiki iāʻoe ke hoʻohana i nā hana hana noiʻi hana i hanaʻia i nā hana hana e hana ai i nā hana e hiki ai ke hoʻokō i ka polokalamu. Hiki i kahi hanana ke lilo i mea hoʻohana e kaomi ana i kahi pihi a loaʻa paha kahi leka uila. ʻo kahi laʻana, Inā kaomi ka mea hoʻohana i kahi pihi, E ho'ōla a hōʻike i ke kiʻi a hōʻike i kahi kiʻi. E mālama ka app i ke kiʻi a hōʻike iā ia ma ka App.

Nā faila XML

Ma ka faila helu XML (Xrp) he faila palapala i hoʻohanaʻia e wehewehe i nā kumuwaiwai i hoʻohanaʻia ma kahi noi. Hiki i kēia mau kumuwaiwai ke loaʻa i kahi static a iʻole ka dinamic. Pono lākou e kapaʻia ma ke ala kūikawā i loko o ka xml-coupsulcen-source. ʻO ka mea maʻamau, Ua weheweheʻia nā kumuwaiwai o ka app ma ke kumu kumu,'. Eia naʻe, Inā loaʻa ka noi i kahi kumuwaiwai dynamic, E like me ia e like me ka mea like.

He xml. I ka Android, Hiki i kēia mau kumuwaiwai ke komo i kahi papa inoa o nā kiʻi, Nā kiʻi, Nā momona, a me nā faila media. ʻO ka xml-chosisn-chosis e hōʻike ana i keʻano he hōʻikeʻia kēlā me kēia kumu. ʻO kahiʻano maʻamau XML-Chansisn-Source.

Popopille-elemaltion

I ka polokalamu Android, Hiki iā ia ke hoʻonohonoho i nā polokalamu-hoʻonohonoho i kahi papa hana Android. Hiki ke weheweheʻia nā mea makemake-e makemake i ka file XML-file a mālamaʻia i nā Sharedpreferent. Hoʻohana ka prefermanmirager i kahi ala static i kapaʻiaʻo GetDefaltsHaredPrefed() i kapaʻia ia mai ka papa Mainact. Aia ka poʻe Sharedpreferents-invanz i kahi papa inoa o nā pākeke nui.

I ka polokalamu Android, Hiki iā mākou ke hoʻohana i ka mea hoʻololi-element i kā mākou code e hoʻonohonoho i nā makemake nui. No keia, Pono mākou e hoʻohui i kahi helu XML-waiwai i ka noi a kuhikuhi i kāna ID. ʻO kēia ke ala maʻalahi e hoʻololi i nā hoʻonohonoho o nā app. ʻO kahi ʻē aʻe, Hiki iā mākou ke hoʻokō i kahi hoʻololi maʻamau i kā mākou noi. Eʻae kēia iāʻoe e hoʻololi i nā hoʻonohonoho o ka app e pono ai.

I ka polokalamu Android, Hāʻawi ka mea hoʻololi-Electpreference i kahi ala kūpono e hoʻonohonoho ai i nā makemake nui. Hiki iā ia ke hāʻawi i kaʻike i ka mea hoʻohana e pili ana i ka heluʻikepili o ka server. Kahi mea hou aʻe, E hoʻokuʻu i ka mea hoʻohana e wehewehe i ka'ōlelo no ka leka e hōʻike ai. Hāʻawiʻo Android i kahi ala kūpono i kapaʻiaʻo Ocpreferfelchonglingelbelblingelbelblies e hoʻomaopopo ana i ka mea hoʻohana ke hoʻololiʻia kahi makemake. E hōʻike ana i kahi komo boolean e kuhikuhi ana inā e mālamaʻia ka waiwai hou e mālama mauʻia a iʻole.

Nāʻike o nā mele mele

Hiki iāʻoe keʻimi i kahi papa piha ma ka hoʻonohonohoʻana o Android. Loaʻa ka papa kuhikuhi pūnaewele 24 Premium-leksten e uhi i nā mea āpau mai ka hoʻomakaʻana i nā kumuhana holomua. Wehe nā papa i nā mea kūʻai aku a pau. Aia no laila ma luna o nā papa hoʻonohonoho hoʻonohonoho pūnaewele. Ua manaʻoʻia ka papa no nā mea hana ma kahiʻike papahana. He haʻahaʻa loa nā prerequisites, A maʻalahi ke papa e hahai.

ʻO ka hana nui o kahi hana Android e hōʻike i nā mele. Ke aʻo aku nei kēia aʻoʻana iāʻoe pehea e hoʻoponopono ai i kahi noi a me ka noi a me ka noiʻana i nā mele mele mele. Hoʻomaka ka Tutorial me nā haʻawinaʻekolu e kūkulu i nā mea ma mua. Ke aʻo nei ka haʻawina hope loa iāʻoe pehea e hana ai i kahi papa hana maʻamau e hōʻike ana i nā mele a me nā mele mai nā kumu likeʻole. Hoʻokomoʻia kēia kumu aʻo i nā hiʻohiʻonaʻelua a me nā code kumu. Aia nō hoʻi nā hiʻohiʻona a me nā kumuwaiwai no ka mea e hoʻoihoʻia e kōkua iāʻoe me kāu hoʻomohalaʻana.

ʻO ka searefachieter he hoʻonohonoho hoʻonohonoho pūnaewele a hiki ke kōkua iāʻoe e kōkua i nā mele kaulana i nā pūnaewele pūnaewele a me nā hana'ē aʻe. Hiki iāʻoe ke hoʻohana iā ia e hoʻokomo i kahi waihona papa inoa a iʻole url i kāu noi Android. I ka manawa e kau ai ka mea hoʻohana i kēia pihi, E hōʻike ka papahana i kahi papa inoa o nāʻike i hiki ke kaʻana. This feature is helpful for people who want to share their favorite song on Facebook or Twitter.

Registrieren Sie sich für den Online-Kurs

If you’d like to learn how to develop Android applications, registering yourself for an online course in the topic would be a great idea. In addition to the basic knowledge, you can earn an Accredible(r) certificate upon completion of the course. And it’s possible to give this course as a gift to someone else. The course will teach you the essential skills needed to create a fully functional mobile application.

The Android Online-Kurs Gesamtpaket is a downloadable package with all the Lektions. There is no time limit on the course and you can complete it as often as you want. ʻO kēia ala, you can be sure that you’ll learn everything you need to know about Android programming. The total package is a downloadable package, so you’ll never run out of material, and you can start studying as soon as you’re ready.

The online course will teach you how to program Android apps and create a cross-platform app. This course will teach you how to develop Android apps with Java and Android Studio. Once you’ve completed the course, you’ll be able to use the Android studio to create real-world apps. The course will also teach you how to develop apps using hybride, which uses Android apps and web-apps for iOS and Android devices.

Koina

There are several factors that affect the costs of Android app development. In addition to the programming hours spent on the app, it is also important to consider the frameworks used to build the app. These frameworks contain the code for different tasks that can be easily used in the app. The exact costs for these frameworks depend on the operating system. If you are planning to develop an app for an Android smartphone, it is best to choose an appropriate framework before you start.

The costs of Android app development will vary according to the complexity of the app and the number of requesting functions. Before you hire a developer, it is important to set your budget and think about the design of your app before hiring them. A well-planned app will help you reduce the cost. The process includes various stages, including a workshop to discuss your ideas and requirements. This includes UI and UX design, Hoʻolālā, a me ka hoʻonohonohoʻana.