{"id":11129,"date":"2026-05-01T07:56:30","date_gmt":"2026-05-01T07:56:30","guid":{"rendered":"https:\/\/thecodest.co\/blog\/\/"},"modified":"2026-05-04T09:25:26","modified_gmt":"2026-05-04T09:25:26","slug":"flutter-vs-dart","status":"publish","type":"post","link":"https:\/\/thecodest.co\/is\/blog\/flutter-vs-dart\/","title":{"rendered":"Flutter vs. Dart"},"content":{"rendered":"

Flestir rugla saman Flutter og Dart eins og \u00feau v\u00e6ru \u00fea\u00f0 sama, s\u00e9rstaklega \u00fear sem Dart og Flutter<\/strong> vinna n\u00e1i\u00f0 saman \u00ed \u00fer\u00f3un yfir m\u00f6rg st\u00fdrikerfi<\/strong>. B\u00e1\u00f0ir eru nau\u00f0synlegir til a\u00f0 byggja Android-forrit og innf\u00e6dd fars\u00edmaforrit<\/strong> fr\u00e1 einni k\u00f3\u00f0agrunni, sem oft lei\u00f0ir til ruglings. En a\u00f0 nota annan \u00e1n \u00feess a\u00f0 skilja hinn getur h\u00e6gja\u00f0 \u00e1 \u00fe\u00e9r forritager\u00f0<\/a><\/strong> og valda ruglingi. A\u00f0 \u00feekkja muninn \u00e1 Flutter og Dart hreinsar upp \u00ed ruglinu og hj\u00e1lpar \u00fe\u00e9r a\u00f0 byggja upp hn\u00f6kralausari og hra\u00f0ari forrit. Skulum greina hva\u00f0 hvert \u00feeirra gerir \u00ed raun og hvers vegna \u00fea\u00f0 skiptir m\u00e1li fyrir verkefnin \u00fe\u00edn.<\/p>\n\n\n\n

Inngangur a\u00f0 Flutter og Dart<\/h2>\n\n\n\n

Til a\u00f0 f\u00e1 sk\u00fdra mynd af Flutter og Dart skulum vi\u00f0 byrja \u00e1 \u00fev\u00ed hvar \u00feau koma fr\u00e1 og hva\u00f0 \u00feau sn\u00faast um. Dart er almenn forritunarm\u00e1l forritunarm\u00e1l<\/strong>, hanna\u00f0 til a\u00f0 takast \u00e1 vi\u00f0 fj\u00f6lbreytt forritunarverkefni, \u00e1 me\u00f0an Flutter er \u00feverpallaramma sem gerir kleift a\u00f0 byggja forrit fyrir marga st\u00fdrikerfi \u00far einni k\u00f3\u00f0agrunni. Me\u00f0 \u00fev\u00ed a\u00f0 skilja r\u00e6tur \u00feeirra, \u00fear \u00e1 me\u00f0al \u00fer\u00f3un Dart \u00ed \u00e1tt a\u00f0 \u00fer\u00f3un \u00e1 vi\u00f0skiptavinas\u00ed\u00f0unni<\/strong> fyrir fars\u00edma og vefur<\/a> forrit og lykilatri\u00f0in sem a\u00f0greina \u00feau, munt \u00fe\u00fa sj\u00e1 hvers vegna \u00feau eru b\u00e6\u00f0i ver\u00f0m\u00e6t.<\/p>\n\n\n\n

Uppruni og bakgrunnur<\/h3>\n\n\n\n

Flutter er rammi sem Google bj\u00f3 til og kynnti \u00e1ri\u00f0 2017. Hann var hanna\u00f0ur til a\u00f0 einfalda ferli\u00f0 vi\u00f0 a\u00f0 byggja forrit me\u00f0 einum k\u00f3\u00f0agrunni fyrir marga palla. Google \u00fer\u00f3a\u00f0i einnig Dart, sem kom fram \u00e1ri\u00f0 2011. Dart var upphaflega \u00e6tla\u00f0ur sem valkostur vi\u00f0 JavaScript<\/a> en s\u00ed\u00f0ar beindi athygli sinni a\u00f0 \u00fer\u00f3un \u00e1 vi\u00f0skiptavinas\u00ed\u00f0unni<\/strong>, s\u00e9rstaklega fyrir fars\u00edma- og vefums\u00f3knir sem krefjast innf\u00e6dds \u00fatlits og tilfinningar me\u00f0 Flutter. Dart er almenn forritunarm\u00e1l forritunarm\u00e1l<\/strong>, f\u00e6r um a\u00f0 takast \u00e1 vi\u00f0 fj\u00f6lbreytt forritunarverkefni umfram Flutter, \u00fear \u00e1 me\u00f0al vef-, net\u00fej\u00f3ns- og forrit\u00fer\u00f3un. \u00de\u00f3 Dart hafi komi\u00f0 fyrstur fram, var\u00f0 hann vins\u00e6lli me\u00f0 vaxandi vins\u00e6ldum Flutter. Samspil \u00feeirra gerir forritun appanna mun \u00e1rangursr\u00edkari.<\/p>\n\n\n\n

Kjarnatilgangur hvers<\/h3>\n\n\n\n

Flutter og Dart \u00fej\u00f3na \u00f3l\u00edkum, en samt samtengdum tilgangi. Dart er a forritunarm\u00e1l<\/strong>, sem \u00fe\u00fd\u00f0ir a\u00f0 \u00fea\u00f0 veitir lei\u00f0beiningar um hva\u00f0 forriti\u00f0 \u00feitt eigi a\u00f0 gera. Ein af lykilatri\u00f0um Dart er einf\u00f6ld m\u00e1lfarsger\u00f0, sem gerir \u00fea\u00f0 au\u00f0velt a\u00f0 L\u00e6r\u00f0u Dart<\/strong> fyrir n\u00fdja forritara, s\u00e9rstaklega \u00fe\u00e1 sem eru kunnugir hlutbundinn<\/strong> forritun. \u00deessi einfaldleiki lei\u00f0ir til hra\u00f0ari \u00fer\u00f3unar og f\u00e6rri villa. Dart leggur einnig \u00e1herslu \u00e1 frammist\u00f6\u00f0u og au\u00f0veldlega skrifun hreins og vi\u00f0haldsv\u00e6ns k\u00f3\u00f0a. k\u00f3\u00f0i<\/a>. Flutter er aftur \u00e1 m\u00f3ti notendavi\u00f0m\u00f3tsverkf\u00e6rasafn. \u00dea\u00f0 tekur \u00feessi fyrirm\u00e6li \u00far Dart og umbreytir \u00feeim \u00ed fallegar, gagnvirkar upplifanir. \u00deessi samsetning gerir forriturum kleift a\u00f0 b\u00faa til sj\u00f3nr\u00e6nt a\u00f0la\u00f0andi og afar virk forrit.<\/p>\n\n\n\n

Helstu munir \u00e1 einu augabrag\u00f0i<\/h3>\n\n\n\n

A\u00f0 skilja hvernig Flutter og Dart eru \u00f3l\u00edk er lykilatri\u00f0i til a\u00f0 n\u00fdta \u00feau \u00e1 \u00e1hrifar\u00edkan h\u00e1tt. Dart sn\u00fdst um tungum\u00e1lseiginleika og m\u00e1lfar, me\u00f0 lykilatri\u00f0um eins og einf\u00f6ldu m\u00e1lfari og mikilli afk\u00f6stum sem gera \u00fea\u00f0 skilvirkt fyrir forrital\u00f3g\u00edk. Flutter, aftur \u00e1 m\u00f3ti, er \u00fevert-pallur rammi til a\u00f0 b\u00faa til sj\u00f3nr\u00e6nt r\u00edk forrit, me\u00f0 lykilatri\u00f0i eins og react\u00edva notendavi\u00f0m\u00f3ti\u00f0, heita endurhle\u00f0slu og getu til a\u00f0 b\u00faa til forrit fyrir m\u00f6rg st\u00fdrikerfi \u00far einni k\u00f3\u00f0agrunni. Dart s\u00e9r um r\u00f6kin \u00e1 bak vi\u00f0 tj\u00f6ldin, \u00e1 me\u00f0an Flutter s\u00e9r um hvernig allt l\u00edtur \u00fat og hvernig \u00fea\u00f0 finnst. Hugsa\u00f0u um Dart sem heilann \u00ed forritinu \u00fe\u00ednu, \u00e1 me\u00f0an Flutter er andliti\u00f0. Saman skapa \u00feau hn\u00f6kralausa \u00fer\u00f3unarupplifun.<\/p>\n\n\n\n

Inngangur a\u00f0 \u00fer\u00f3un margpallaforrita<\/h2>\n\n\n\n

\u00der\u00f3un margpallaforrita<\/strong> er ferli\u00f0 vi\u00f0 a\u00f0 byggja fars\u00edmaforrit<\/strong> sem keyra hn\u00f6kralaust \u00e1 m\u00f6rgum vettvangi, svo sem Android- og iOS-t\u00e6kjum, me\u00f0 einni k\u00f3\u00f0agrunni. \u00deessi n\u00e1lgun einfaldar forritunar\u00fer\u00f3un me\u00f0 \u00fev\u00ed a\u00f0 leyfa forriturum a\u00f0 skrifa k\u00f3\u00f0ann einu sinni og dreifa honum \u00e1 mismunandi st\u00fdrikerfum, sem dregur \u00far b\u00e6\u00f0i t\u00edma og kostna\u00f0i. The Flutter-rammasetning<\/strong>, kn\u00fai\u00f0 af Dart forritunarm\u00e1l<\/strong>, er lei\u00f0andi lausn fyrir \u00fevert \u00e1 vettvang forritager\u00f0<\/strong>. Me\u00f0 Flutter og Dart geta forritarar b\u00fai\u00f0 til h\u00e1g\u00e6\u00f0a forrit sem bj\u00f3\u00f0a upp \u00e1 samr\u00e6mda notendaupplifun \u00e1 Android- og iOS-t\u00e6kjum. \u00deessi a\u00f0fer\u00f0 er kj\u00f6rin fyrir teams sem vilja n\u00e1 til brei\u00f0ari markh\u00f3ps \u00e1n \u00feess a\u00f0 \u00feurfa a\u00f0 vi\u00f0halda a\u00f0skildar k\u00f3\u00f0agrunnar<\/strong> fyrir hvern vettvang. Me\u00f0 \u00fev\u00ed a\u00f0 n\u00fdta styrkleika Flutter og Dart getur\u00f0u \u00e1 skilvirkan h\u00e1tt b\u00fai\u00f0 til st\u00e6kkanlega fars\u00edmaforrit<\/strong> sem virka \u00e1 m\u00f6rgum vettvangi.<\/p>\n\n\n\n

Dart: Tungum\u00e1lsgrunnur<\/h2>\n\n\n\n

N\u00fa \u00feegar \u00fe\u00fa \u00feekkir grunnatri\u00f0in skulum vi\u00f0 kafa d\u00fdpra \u00ed Dart. Dart er alhli\u00f0a forritunarm\u00e1l, sem \u00fe\u00fd\u00f0ir a\u00f0 \u00fea\u00f0 m\u00e1 nota \u00fea\u00f0 vi\u00f0 fj\u00f6lbreytt forritunarverkefni umfram eing\u00f6ngu Flutter, \u00fear \u00e1 me\u00f0al vef- og net\u00fej\u00f3ns\u00fer\u00f3un. Forritarar skrifa Dart-k\u00f3\u00f0i<\/strong> til a\u00f0 skilgreina forrital\u00f3g\u00edk og notendavi\u00f0m\u00f3ts\u00fe\u00e6tti, sem gerir \u00fea\u00f0 a\u00f0 mi\u00f0punkti \u00ed \u00fer\u00f3unarferlinu \u00ed Flutter-forritum. \u00deessi kafli mun fjalla um m\u00e1lfr\u00e6\u00f0i \u00feess, kosti og hvernig \u00fea\u00f0 er almennt nota\u00f0.<\/p>\n\n\n\n

Setningafr\u00e6\u00f0i og uppbygging<\/h3>\n\n\n\n

Setningafr\u00e6\u00f0i Dart er svipu\u00f0 \u00f6\u00f0rum forritunarm\u00e1l<\/a><\/strong> eins og Java<\/a> og C#. \u00dea\u00f0 er hlutbundi\u00f0, sem \u00fe\u00fd\u00f0ir a\u00f0 \u00fea\u00f0 notar klassa og hluti til a\u00f0 skipuleggja k\u00f3\u00f0ann. \u00deessi uppbygging gerir \u00fea\u00f0 au\u00f0velt a\u00f0 l\u00e6ra ef \u00fe\u00fa \u00feekkir \u00feessar forritunarm\u00e1l. Dart sty\u00f0ur einnig n\u00fat\u00edmaleg forritunareiginleika eins og asynchr\u00f3na forritun, sem gerir \u00fe\u00e9r kleift a\u00f0 skrifa skilvirkan k\u00f3\u00f0a. Me\u00f0 Dart skrifar \u00fe\u00fa \u00fe\u00e6r lei\u00f0beiningar sem Flutter mun nota til a\u00f0 byggja upp vi\u00f0m\u00f3t forritsins \u00fe\u00edns.<\/p>\n\n\n\n

\u00c1vinningur fyrir forritara<\/h3>\n\n\n\n

Dart b\u00fd\u00f0ur forriturum upp \u00e1 nokkra kosti. Einn helsti kosturinn er einf\u00f6ld ritun \u00feess, sem dregur \u00far n\u00e1msferlinum. \u00de\u00fa getur skrifa\u00f0 b\u00e6\u00f0i k\u00f3\u00f0a \u00e1 vi\u00f0skiptavinahli\u00f0 og net\u00fej\u00f3nshli\u00f0, sem gerir \u00fea\u00f0 fj\u00f6lh\u00e6ft. Frammista\u00f0a Dart er fram\u00farskarandi, \u00fear sem \u00fea\u00f0 \u00fe\u00fd\u00f0ir \u00ed f\u00e6ddur k\u00f3\u00f0i<\/strong>. \u00deetta \u00fe\u00fd\u00f0ir a\u00f0 forritin \u00fe\u00edn keyra hra\u00f0ar og nota minna vinnsluminni. Me\u00f0 \u00fev\u00ed a\u00f0 nota Dart getur\u00f0u b\u00faa til forrit<\/strong> sem eru b\u00e6\u00f0i \u00e1rei\u00f0anleg og vi\u00f0brag\u00f0sflj\u00f3t.<\/p>\n\n\n\n

Algeng notkunartilvik<\/h3>\n\n\n\n

\u00deannig, hven\u00e6r \u00e6ttir \u00fe\u00fa a\u00f0 \u00edhuga a\u00f0 nota Dart? \u00dea\u00f0 hentar fullkomlega til vef- og fars\u00edmaforritunar. Forritarar velja oft Dart til a\u00f0 b\u00faa til forrit sem virka \u00e1 m\u00f6rgum vettvangi, \u00fear sem \u00fea\u00f0 vinnur hn\u00f6kralaust me\u00f0 Flutter. Fyrir utan forritun er Dart alhli\u00f0a forritunarm\u00e1l sem hentar vel til a\u00f0 skrifa skipanal\u00ednut\u00f3l og net\u00fej\u00f3nsforrit. Dart m\u00e1 einnig nota til a\u00f0 byggja bakenda\u00fej\u00f3nustu e\u00f0a forritaskil<\/a> \u00fej\u00f3nar sem nota rammasetningar eins og Shelf, Angel e\u00f0a Aqueduct, sem undirstrikar fj\u00f6lh\u00e6fni \u00feeirra \u00e1 \u00fdmsum svi\u00f0um. \u00deessi sveigjanleiki gerir \u00fe\u00e6r a\u00f0 ver\u00f0m\u00e6tu t\u00e6ki \u00ed verkf\u00e6rakistu hvers forritara.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Flutter: Eiginleikar rammasins<\/h2>\n\n\n\n

Skiptum um g\u00edr og einbeitum okkur a\u00f0 Flutter, \u00feverpallaramma sem er hanna\u00f0ur fyrir hra\u00f0a \u00fer\u00f3un. Flutter gerir forriturum kleift a\u00f0 b\u00faa til innf\u00e6dda \u00fe\u00fdlda hugb\u00fana\u00f0arforrit fyrir fars\u00edma, vef og skj\u00e1bor\u00f0 \u00far einni k\u00f3\u00f0agrunni, sem dregur verulega \u00far \u00fer\u00f3unart\u00edma og kostna\u00f0i. Kynntu \u00fe\u00e9r hvernig \u00fea\u00f0 eykur \u00fer\u00f3unarferli<\/a> og hva\u00f0 gerir \u00fea\u00f0 \u00e1berandi.<\/p>\n\n\n\n

Vi\u00f0m\u00f3ts\u00fe\u00e6ttir og notendavi\u00f0m\u00f3ts\u00fe\u00e6ttir<\/h3>\n\n\n\n

Flutter sn\u00fdst allt um widgets. Widgets eru byggingareiningar Flutter-forritsins og sj\u00e1 um allt sem \u00fe\u00fa s\u00e9r\u00f0 \u00e1 skj\u00e1num. \u00deau bj\u00f3\u00f0a upp \u00e1 r\u00edka m\u00f6guleika til a\u00f0 b\u00faa til fl\u00f3kin vi\u00f0m\u00f3t. \u00dea\u00f0 besta? \u00deau eru s\u00e9rsni\u00f0in, svo \u00fe\u00fa getur sni\u00f0i\u00f0 alla \u00fe\u00e6tti \u00fatlits og tilfinningar forritsins \u00fe\u00edns. Me\u00f0 yfirgripsmikilli widget-b\u00f3kasafni Flutter getur\u00f0u skapa\u00f0 einstaka og gr\u00edpandi notendaupplifanir.<\/p>\n\n\n\n

Flj\u00f3tlegur \u00fer\u00f3unarhringur<\/h3>\n\n\n\n

Hra\u00f0i er mikilv\u00e6gur \u00ed \u00fer\u00f3un, og Flutter skilar. Me\u00f0 \u201chot reload\u201d-eiginleikanum s\u00e9r\u00f0u breytingar samstundis \u00e1n \u00feess a\u00f0 endurr\u00e6sa forriti\u00f0. \u00deessi hra\u00f0a endurgj\u00f6f eykur framlei\u00f0ni og gerir \u00fe\u00e9r kleift a\u00f0 pr\u00f3fa og endurtaka hratt. \u00der\u00f3unarhra\u00f0i Flutter sparar t\u00edma og dregur \u00far pirringi, sem gerir \u00fea\u00f0 a\u00f0 upp\u00e1haldi me\u00f0al forritara.<\/p>\n\n\n\n

Vins\u00e6lar forritanir ger\u00f0ar me\u00f0 Flutter<\/h3>\n\n\n\n

Forvitinn um hva\u00f0 h\u00e6gt er a\u00f0 n\u00e1 fram me\u00f0 Flutter? Sum st\u00f3r n\u00f6fn nota \u00fea\u00f0 fyrir forrit s\u00edn. Fyrirt\u00e6ki eins og Alibaba og Google Ads hafa treyst \u00e1 Flutter fyrir fars\u00edmalausnir s\u00ednar og gefi\u00f0 \u00fat h\u00e1g\u00e6\u00f0a innf\u00e6dda fars\u00edmaforrit<\/strong> \u00e1 b\u00e6\u00f0i Google Play og App Store til a\u00f0 n\u00e1 til notenda \u00e1 Android og iOS. \u00deessar forrit s\u00fdna getu Flutter til a\u00f0 takast \u00e1 vi\u00f0 fl\u00f3kin, umfer\u00f0armikil umhverfi og s\u00fdna hvernig Flutter gerir kleift a\u00f0 b\u00faa til innf\u00e6ddar Android-forrit \u00far einni k\u00f3\u00f0agrunni. \u00c1rangur \u00feessara forrita s\u00fdnir getu Flutter \u00ed raunveruleikanum.<\/p>\n\n\n\n

Flutter- og Dart-vistkerfi<\/h2>\n\n\n\n

Flutter- og Dart-vistkerfi\u00f0 b\u00fd\u00f0ur upp \u00e1 \u00f6flugt safn verkf\u00e6ra og b\u00f3kasafna sem h\u00f6nnu\u00f0 eru til a\u00f0 einfalda \u00fer\u00f3un fars\u00edmaforrita. \u00cd kjarna s\u00ednum gerir Dart-forritunarm\u00e1li\u00f0 forriturum kleift a\u00f0 skrifa skynsemi og notendavi\u00f0m\u00f3t fyrir Flutter-forrit. Flutter-rammasetning<\/strong> veitir r\u00edkan b\u00fana\u00f0 forhanna\u00f0ra v\u00edgletta og verkf\u00e6ra sem au\u00f0velda a\u00f0 b\u00faa til sj\u00f3nr\u00e6nt a\u00f0la\u00f0andi og gagnvirk notendavi\u00f0m\u00f3t. \u00der\u00f3unarumhverfi eins og Visual Studio Code og Android Studio bj\u00f3\u00f0a upp \u00e1 eiginleika eins og k\u00f3\u00f0auppfyllingu, villuleit og heita endurhle\u00f0slu sem fl\u00fdta fyrir \u00fer\u00f3unarferlinu og auka framlei\u00f0ni. Vistkerfi\u00f0 er enn frekar styrkt af st\u00f3rum, virkum samf\u00e9lagi forritara sem leggja til au\u00f0lindir, vi\u00f0b\u00e6tur og stu\u00f0ning. Saman gera \u00feessir \u00fe\u00e6ttir \u00fea\u00f0 au\u00f0veldara a\u00f0 b\u00faa til, pr\u00f3fa og setja upp h\u00e1g\u00e6\u00f0a forrit fyrir Android og a\u00f0ra palla me\u00f0 Flutter og Dart.<\/p>\n\n\n\n

A\u00f0 vinna saman: Flutter og Dart<\/h2>\n\n\n\n

Sko\u00f0um hvernig Dart og Flutter<\/strong> vinna saman a\u00f0 \u00fev\u00ed a\u00f0 b\u00faa til fr\u00e1b\u00e6r forrit. A\u00f0 nota Dart og Flutter saman \u00fe\u00fd\u00f0ir a\u00f0 forritarar geta unni\u00f0 innan eins t\u00e6knistigs fyrir allan k\u00f3\u00f0agrunninn og \u00feurfa ekki a\u00f0 skipta \u00e1 milli mismunandi forritunarm\u00e1la vi\u00f0 \u00fer\u00f3un, pr\u00f3fanir og villuleit. \u00deessi sam\u00fe\u00e6tta n\u00e1lgun gerir forriturum kleift a\u00f0 skrifa, pr\u00f3fa og kemba k\u00f3\u00f0ann einungis einu sinni \u00e1\u00f0ur en hann er settur upp \u00e1 m\u00f6rgum vettvangi, sem einfalda vinnufl\u00e6\u00f0i\u00f0 og draga \u00far fl\u00e6kjustigi. Samstarf \u00feeirra er \u00fea\u00f0 sem einkennir \u00fe\u00e1.<\/p>\n\n\n\n

Hvernig \u00feau fullkomna hvert anna\u00f0<\/h3>\n\n\n\n

Flutter og Dart eru par sem var\u00f0 til \u00ed himnar\u00edki. \u00c1rangursr\u00edk k\u00f3\u00f0akeyrsla Dart fellur fullkomlega a\u00f0 tj\u00e1ningarh\u00e6fileikum Flutter \u00ed notendavi\u00f0m\u00f3ti. Dart s\u00e9r um l\u00f3g\u00edkina, \u00e1 me\u00f0an Flutter gerir \u00feessi fyrirm\u00e6li a\u00f0 veruleika. \u00deessi samvirkni skilar forritum sem eru b\u00e6\u00f0i hagn\u00fdt og falleg. \u00deegar \u00feau eru notu\u00f0 saman einfalda \u00feau \u00fer\u00f3unarferli\u00f0 og auka heildarframmist\u00f6\u00f0u.<\/p>\n\n\n\n

Kostir \u00feess a\u00f0 nota b\u00e6\u00f0i<\/h3>\n\n\n\n

Me\u00f0 \u00fev\u00ed a\u00f0 nota Flutter og Dart saman opnar \u00fe\u00fa \u00fe\u00e9r \u00fdmsa kosti. Sameinu\u00f0 n\u00e1lgun tryggir a\u00f0 forriti\u00f0 \u00feitt keyrir hn\u00f6kralaust \u00e1 mismunandi kerfum \u00e1 me\u00f0an \u00fe\u00fa getur vi\u00f0haldi\u00f0 s\u00f6mu k\u00f3\u00f0agrunninum. \u00deetta \u00fe\u00fd\u00f0ir a\u00f0 \u00fe\u00fa getur b\u00fai\u00f0 til samr\u00e6md og innf\u00e6dd-l\u00edk notendavi\u00f0m\u00f3t fyrir iOS, Android, vef og skj\u00e1bor\u00f0 \u00e1n \u00feess a\u00f0 endurtaka vinnu, sem einfaldar uppf\u00e6rslur og vi\u00f0hald. \u00de\u00fa f\u00e6r\u00f0 a\u00f0gang a\u00f0 st\u00f3ru samf\u00e9lagi og gn\u00e6g\u00f0 au\u00f0linda, sem gerir lausn vandam\u00e1la au\u00f0veldari. Ennfremur \u00fe\u00fd\u00f0ir n\u00e1lgunin me\u00f0 einum k\u00f3\u00f0agrunni minni vi\u00f0hald og hra\u00f0ari uppf\u00e6rslur. \u00deessi skilvirkni er \u00e1st\u00e6\u00f0an fyrir \u00fev\u00ed a\u00f0 margir forritarar velja \u00feetta kraftmikla tv\u00edeyki.<\/p>\n\n\n\n

Raunveruleg d\u00e6mi<\/h3>\n\n\n\n

Margir forritarar hafa n\u00e1\u00f0 miklum \u00e1rangri me\u00f0 Flutter og Dart. Til d\u00e6mis nota\u00f0i Hamilton-forriti\u00f0 \u00feau til a\u00f0 b\u00faa til r\u00edka og s\u00f6kkvandi upplifun fyrir leikh\u00fasunnendur. \u00deetta forrit s\u00fdnir hvernig h\u00f6nnunarm\u00f6guleikar Flutter og afk\u00f6st Dart vinna hli\u00f0 vi\u00f0 hli\u00f0. \u00deessi raunverulegu d\u00e6mi undirstrika hagn\u00fdta kosti \u00feess a\u00f0 nota b\u00e6\u00f0i verkf\u00e6rin saman.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

\u00deverpallaa\u00f0ger\u00f0ir<\/h2>\n\n\n\n

Flutter og Dart eru h\u00f6nnu\u00f0 fyrir \u00fevert \u00e1 vettvang forrit\u00fer\u00f3un, sem gerir \u00fe\u00e9r kleift a\u00f0 b\u00faa til forrit sem keyra \u00e1 Android- og iOS-t\u00e6kjum, sem og vef- og skj\u00e1bor\u00f0svettvangi, allt \u00far einni k\u00f3\u00f0agrunni. The Flutter-rammasetning<\/strong> Innifelur verkf\u00e6ri og b\u00f3kas\u00f6fn sem sty\u00f0ja vettvangstengdar a\u00f0ger\u00f0ir og API, sem tryggja a\u00f0 forritin \u00fe\u00edn vir\u00f0ast innf\u00e6dd \u00e1 \u00f6llum t\u00e6kjum. Dart forritunarm\u00e1li\u00f0 eykur \u00feessa sveigjanleika me\u00f0 stu\u00f0ningi vi\u00f0 b\u00e6\u00f0i just-in-time og ahead-of-time \u00fe\u00fd\u00f0ingu, sem gerir k\u00f3\u00f0anum \u00fe\u00ednum kleift a\u00f0 vera f\u00ednstilltur fyrir afk\u00f6st og \u00fe\u00fdddur \u00ed f\u00e6ddur k\u00f3\u00f0i<\/strong> fyrir hvern vettvang. \u00deessi n\u00e1lgun einfaldar forritunar\u00fer\u00f3un, dregur \u00far vi\u00f0haldi og tryggir samr\u00e6mda virkni og \u00fatlit \u00e1 m\u00f6rgum vettvangi. Me\u00f0 Flutter og Dart getur\u00f0u \u00e1 skilvirkan h\u00e1tt b\u00fai\u00f0 til forrit sem n\u00e1 til notenda \u00e1 Android, iOS, vefnum og v\u00ed\u00f0ar.<\/p>\n\n\n\n

A\u00f0 velja r\u00e9ttan verkf\u00e6ri<\/h2>\n\n\n\n

\u00c1kv\u00f6r\u00f0un um hvort eigi a\u00f0 nota Flutter e\u00f0a Dart, e\u00f0a b\u00e6\u00f0i, fer eftir \u00fe\u00ednum verkefni<\/a> \u00fearfir. Ef \u00fer\u00f3un yfir m\u00f6rg st\u00fdrikerfi<\/strong> \u00deetta er forgangsatri\u00f0i; me\u00f0 \u00fev\u00ed a\u00f0 nota \u00fevert-vettvangsramma eins og Flutter getur\u00f0u sm\u00ed\u00f0a\u00f0 forrit fyrir marga palla (iOS, Android, vef, skj\u00e1bor\u00f0) \u00far sama k\u00f3\u00f0agrunni. \u00deetta getur einfalda\u00f0 \u00fer\u00f3un, b\u00e6tt skilvirkni og tryggt samr\u00e6mda notendaupplifun \u00e1 \u00f6llum t\u00e6kjum. Sko\u00f0um hvernig \u00e1 a\u00f0 taka r\u00e9tta \u00e1kv\u00f6r\u00f0un.<\/p>\n\n\n\n

Mat \u00e1 \u00fe\u00f6rfum verkefnisins<\/h3>\n\n\n\n

Byrja\u00f0u \u00e1 \u00fev\u00ed a\u00f0 meta kr\u00f6fur verkefnisins. Vantar \u00feig \u00feverpallalausn, e\u00f0a ertu a\u00f0 einbeita \u00fe\u00e9r a\u00f0 vef- e\u00f0a net\u00fej\u00f3nsforritum? Ef verkefni\u00f0 \u00feitt felur \u00ed s\u00e9r vef\u00fer\u00f3un<\/a> e\u00f0a \u00fer\u00f3un \u00e1 vi\u00f0skiptavinas\u00ed\u00f0unni<\/strong>, b\u00e6\u00f0i Dart og Flutter<\/strong> eru sterkar valkostir vegna \u00feess hve \u00fe\u00e6r geta skila\u00f0 h\u00e1g\u00e6\u00f0a, innf\u00e6dda-l\u00edkar upplifanir \u00e1 m\u00f6rgum vettvangi. \u00cdhuga\u00f0u s\u00e9rfr\u00e6\u00f0i\u00feekkingu \u00fe\u00edna og \u00fe\u00e1 upplifun sem notendur vilja. Me\u00f0 \u00fev\u00ed a\u00f0 skilja \u00feessa \u00fe\u00e6tti getur\u00f0u \u00e1kve\u00f0i\u00f0 hvort Flutter, Dart e\u00f0a b\u00e6\u00f0i henti \u00fe\u00e9r.<\/p>\n\n\n\n

Hven\u00e6r \u00e1 a\u00f0 nota Dart einn<\/h3>\n\n\n\n

\u00dea\u00f0 eru stundir \u00feegar Dart sk\u00edn \u00e1 eigin forsendum. Ef \u00fe\u00fa ert a\u00f0 byggja upp \u00fej\u00f3nshli\u00f0forrit e\u00f0a skipanal\u00ednut\u00f3l eru tungum\u00e1lseiginleikar Dart fullkomnir. H\u00e6fileiki \u00feess til a\u00f0 takast \u00e1 vi\u00f0 \u00f3samstilltar a\u00f0ger\u00f0ir gerir \u00fea\u00f0 fullkomi\u00f0 fyrir \u00feessar a\u00f0st\u00e6\u00f0ur. \u00cd sl\u00edkum tilfellum eru einfaldleiki og afk\u00f6st Dart allt sem \u00fe\u00fa \u00fearft.<\/p>\n\n\n\n

Hven\u00e6r \u00e1 a\u00f0 nota Flutter me\u00f0 Dart<\/h3>\n\n\n\n

Fyrir \u00fer\u00f3un cross-platform forrita eru Flutter og Dart saman \u00f3vi\u00f0jafnanleg. Me\u00f0 Flutter skrifar \u00fe\u00fa allt notendavi\u00f0m\u00f3t og alla r\u00f6kfr\u00e6\u00f0i forritsins \u00ed Dart-k\u00f3\u00f0i<\/strong>, svo \u00fe\u00fa \u00fearft ekki a\u00f0 skipta \u00e1 milli mismunandi forritunarm\u00e1la fyrir \u00fer\u00f3un, pr\u00f3fanir e\u00f0a villuleit. \u00deau tryggja a\u00f0 forriti\u00f0 \u00feitt virki vel b\u00e6\u00f0i \u00e1 iOS og Android \u00far einni k\u00f3\u00f0agrunni. \u00deegar \u00fe\u00fa \u00fearft sj\u00f3nr\u00e6nt a\u00f0la\u00f0andi vi\u00f0m\u00f3t me\u00f0 mj\u00fakum hreyfimyndum er \u00feessi samsetning r\u00e9tta lei\u00f0in. Me\u00f0 \u00fev\u00ed a\u00f0 n\u00fdta b\u00e6\u00f0i getur\u00f0u skila\u00f0 f\u00ednp\u00fassa\u00f0ri og samr\u00e6mdri notendaupplifun \u00e1 \u00f6llum t\u00e6kjum.<\/p>\n\n\n\n

Flutter vs. Dart<\/h1>\n\n\n\n

Flestir rugla saman Flutter og Dart eins og \u00feau v\u00e6ru \u00fea\u00f0 sama, s\u00e9rstaklega \u00fear sem Dart og Flutter<\/strong> vinna n\u00e1i\u00f0 saman \u00ed \u00fer\u00f3un yfir m\u00f6rg st\u00fdrikerfi<\/strong>. B\u00e1\u00f0ir eru nau\u00f0synlegir til a\u00f0 byggja Android-forrit og innf\u00e6dd fars\u00edmaforrit<\/strong> \u00far einni k\u00f3\u00f0agrunni, sem oft veldur ruglingi. En a\u00f0 nota anna\u00f0 \u00e1n \u00feess a\u00f0 skilja hitt getur h\u00e6gja\u00f0 \u00e1 \u00fer\u00f3un forritsins \u00fe\u00edns og valdi\u00f0 ruglingi. A\u00f0 \u00feekkja muninn \u00e1 Flutter og Dart hreinsar upp \u00ed ruglinu og hj\u00e1lpar \u00fe\u00e9r a\u00f0 byggja upp sl\u00e9ttari og hra\u00f0ari forrit. Sko\u00f0um n\u00e1nar hva\u00f0 hvert \u00feeirra gerir \u00ed raun og hvers vegna \u00fea\u00f0 skiptir m\u00e1li fyrir verkefnin \u00fe\u00edn.<\/p>\n\n\n\n

Inngangur a\u00f0 Flutter og Dart<\/h2>\n\n\n\n

Til a\u00f0 f\u00e1 sk\u00fdra mynd af Flutter og Dart skulum vi\u00f0 byrja \u00e1 \u00fev\u00ed hvar \u00feau koma fr\u00e1 og hva\u00f0 \u00feau sn\u00faast um. Dart er alhli\u00f0a forritunarm\u00e1l, hanna\u00f0 til a\u00f0 takast \u00e1 vi\u00f0 fj\u00f6lbreytt forritunarverkefni, \u00e1 me\u00f0an Flutter er \u00fevert-pallur rammi sem gerir kleift a\u00f0 byggja forrit fyrir marga st\u00fdrikerfi \u00far einni k\u00f3\u00f0agrunni. Me\u00f0 \u00fev\u00ed a\u00f0 skilja r\u00e6tur \u00feeirra, \u00fear \u00e1 me\u00f0al \u00fer\u00f3un Dart \u00ed \u00e1tt a\u00f0 \u00fer\u00f3un \u00e1 vi\u00f0skiptavinas\u00ed\u00f0unni<\/strong> fyrir fars\u00edma og vefforrit<\/a>, og me\u00f0 \u00fev\u00ed a\u00f0 sko\u00f0a helstu einkenni sem greina \u00feau fr\u00e1 hvoru \u00f6\u00f0ru, s\u00e9r\u00f0u hvers vegna \u00feau eru b\u00e6\u00f0i ver\u00f0m\u00e6t.<\/p>\n\n\n\n

Uppruni og bakgrunnur<\/h3>\n\n\n\n

Flutter er rammi sem Google bj\u00f3 til og kynnti \u00e1ri\u00f0 2017. Hann var hanna\u00f0ur til a\u00f0 einfalda ferli\u00f0 vi\u00f0 a\u00f0 byggja upp forrit me\u00f0 einum k\u00f3\u00f0agrunni fyrir marga palla. Google \u00fer\u00f3a\u00f0i einnig Dart, sem kom \u00fat \u00e1ri\u00f0 2011. Dart var upphaflega \u00e6tla\u00f0ur sem valkostur vi\u00f0 JavaScript en s\u00ed\u00f0ar beindi hann sj\u00f3num s\u00ednum a\u00f0 \u00fer\u00f3un \u00e1 notendahli\u00f0, s\u00e9rstaklega fyrir fars\u00edma- og vefforrit sem krefjast innf\u00e6dds \u00fatlits og tilfinningar me\u00f0 Flutter. Dart er alhli\u00f0a forritunarm\u00e1l sem r\u00e6\u00f0ur vi\u00f0 fj\u00f6lbreytt forritunarverkefni utan Flutter, \u00fear \u00e1 me\u00f0al vef-, net\u00fej\u00f3ns- og forritunar\u00fer\u00f3un. \u00de\u00f3 Dart hafi komi\u00f0 fyrstur fram var\u00f0 hann vins\u00e6lli me\u00f0 vaxandi vins\u00e6ldum Flutter. Samspil \u00feeirra gerir forritun \u00f6ppum mun \u00e1rangursr\u00edkari.<\/p>\n\n\n\n

Kjarnatilgangur hvers<\/h3>\n\n\n\n

Flutter og Dart \u00fej\u00f3na \u00f3l\u00edkum en samt samtengdum tilgangi. Dart er forritunarm\u00e1l, sem \u00fe\u00fd\u00f0ir a\u00f0 \u00fea\u00f0 gefur fyrirm\u00e6li um hva\u00f0 forriti\u00f0 \u00feitt eigi a\u00f0 gera. Ein af helstu eiginleikum Dart er einf\u00f6ld setningager\u00f0, sem gerir \u00fea\u00f0 au\u00f0velt a\u00f0 L\u00e6r\u00f0u Dart<\/strong> fyrir n\u00fdja forritara, s\u00e9rstaklega \u00fe\u00e1 sem eru kunnugir hlutbundinni forritun. \u00deessi einfaldleiki lei\u00f0ir til hra\u00f0ari \u00fer\u00f3unar og f\u00e6rri villna. Dart leggur einnig \u00e1herslu \u00e1 afk\u00f6st og au\u00f0veldlega skrifun hreins og vi\u00f0haldsv\u00e6ns k\u00f3\u00f0a. Flutter, aftur \u00e1 m\u00f3ti, er notendavi\u00f0m\u00f3tsverkf\u00e6rasafn. \u00dea\u00f0 tekur \u00feessi fyrirm\u00e6li \u00far Dart og umbreytir \u00feeim \u00ed fallegar, gagnvirkar upplifanir. \u00deessi samsetning gerir forriturum kleift a\u00f0 b\u00faa til sj\u00f3nr\u00e6nt a\u00f0la\u00f0andi og afar virk forrit.<\/p>\n\n\n\n

Helstu munir \u00e1 einu augabrag\u00f0i<\/h3>\n\n\n\n

A\u00f0 skilja hvernig Flutter og Dart eru \u00f3l\u00edk er lykilatri\u00f0i til a\u00f0 n\u00fdta \u00feau \u00e1 \u00e1hrifar\u00edkan h\u00e1tt. Dart sn\u00fdst um tungum\u00e1lseiginleika og m\u00e1lfar, me\u00f0 lykilatri\u00f0um eins og einf\u00f6ldu m\u00e1lfari og mikilli afk\u00f6stum sem gera \u00fea\u00f0 skilvirkt fyrir forrital\u00f3g\u00edk. Flutter, aftur \u00e1 m\u00f3ti, er \u00fevert-pallur rammi til a\u00f0 b\u00faa til sj\u00f3nr\u00e6nt r\u00edk forrit, me\u00f0 lykilatri\u00f0i eins og react\u00edva notendavi\u00f0m\u00f3ti\u00f0, heita endurhle\u00f0slu og getu til a\u00f0 b\u00faa til forrit fyrir m\u00f6rg st\u00fdrikerfi \u00far einni k\u00f3\u00f0agrunni. Dart s\u00e9r um r\u00f6kin \u00e1 bak vi\u00f0 tj\u00f6ldin, \u00e1 me\u00f0an Flutter s\u00e9r um hvernig allt l\u00edtur \u00fat og hvernig \u00fea\u00f0 finnst. Hugsa\u00f0u um Dart sem heilann \u00ed forritinu \u00fe\u00ednu, \u00e1 me\u00f0an Flutter er andliti\u00f0. Saman skapa \u00feau hn\u00f6kralausa \u00fer\u00f3unarupplifun.<\/p>\n\n\n\n

Inngangur a\u00f0 \u00fer\u00f3un margpallaforrita<\/h2>\n\n\n\n

\u00der\u00f3un cross-platform-forrita er ferli\u00f0 vi\u00f0 a\u00f0 b\u00faa til fars\u00edmaforrit sem keyra hn\u00f6kralaust \u00e1 m\u00f6rgum vettvangi, svo sem Android- og iOS-t\u00e6kjum, me\u00f0 einni k\u00f3\u00f0agrunni. \u00deessi n\u00e1lgun einfalda \u00fer\u00f3un forrita me\u00f0 \u00fev\u00ed a\u00f0 leyfa forriturum a\u00f0 skrifa k\u00f3\u00f0ann einu sinni og dreifa honum \u00e1 mismunandi st\u00fdrikerfum, sem dregur \u00far b\u00e6\u00f0i t\u00edma og kostna\u00f0i. Flutter-rammasetning<\/strong>, kn\u00fai\u00f0 af Dart forritunarm\u00e1linu, er lei\u00f0andi lausn fyrir \u00fer\u00f3un margpallaforrita. Me\u00f0 Flutter og Dart geta forritarar b\u00fai\u00f0 til h\u00e1g\u00e6\u00f0a forrit sem bj\u00f3\u00f0a upp \u00e1 samr\u00e6mda notendaupplifun \u00e1 Android- og iOS-t\u00e6kjum. \u00deessi a\u00f0fer\u00f0 hentar teams sem vilja n\u00e1 til brei\u00f0ari markh\u00f3ps \u00e1n \u00feess a\u00f0 vi\u00f0halda a\u00f0skildar k\u00f3\u00f0agrunnar<\/strong> fyrir hvern vettvang. Me\u00f0 \u00fev\u00ed a\u00f0 n\u00fdta styrkleika Flutter og Dart getur\u00f0u \u00e1 skilvirkan h\u00e1tt b\u00fai\u00f0 til st\u00e6kkanleg fars\u00edmaforrit sem virka \u00e1 m\u00f6rgum vettv\u00f6ngum.<\/p>\n\n\n\n

Dart: Tungum\u00e1lsgrunnur<\/h2>\n\n\n\n

N\u00fa \u00feegar \u00fe\u00fa \u00feekkir grunnatri\u00f0in skulum vi\u00f0 kafa d\u00fdpra \u00ed Dart. Dart er alhli\u00f0a forritunarm\u00e1l, sem \u00fe\u00fd\u00f0ir a\u00f0 \u00fea\u00f0 m\u00e1 nota \u00fea\u00f0 vi\u00f0 fj\u00f6lbreytt forritunarverkefni umfram eing\u00f6ngu Flutter, \u00fear \u00e1 me\u00f0al vef- og net\u00fej\u00f3ns\u00fer\u00f3un. Forritarar skrifa Dart-k\u00f3\u00f0i<\/strong> til a\u00f0 skilgreina forrital\u00f3g\u00edk og notendavi\u00f0m\u00f3ts\u00fe\u00e6tti, sem gerir \u00fea\u00f0 a\u00f0 mi\u00f0punkti \u00ed \u00fer\u00f3unarferlinu \u00ed Flutter-forritum. \u00deessi kafli mun fjalla um m\u00e1lfr\u00e6\u00f0i \u00feess, kosti og hvernig \u00fea\u00f0 er almennt nota\u00f0.<\/p>\n\n\n\n

Setningafr\u00e6\u00f0i og uppbygging<\/h3>\n\n\n\n

Setningafr\u00e6\u00f0i Dart er svipu\u00f0 \u00f6\u00f0rum forritunarm\u00e1l<\/strong> eins og Java<\/a> og C#. \u00dea\u00f0 er hlutbundi\u00f0, sem \u00fe\u00fd\u00f0ir a\u00f0 \u00fea\u00f0 notar klassa og hluti til a\u00f0 skipuleggja k\u00f3\u00f0ann. \u00deessi uppbygging gerir \u00fea\u00f0 au\u00f0velt a\u00f0 l\u00e6ra ef \u00fe\u00fa \u00feekkir \u00feessar forritunarm\u00e1l. Dart sty\u00f0ur einnig n\u00fat\u00edmaleg forritunareiginleika eins og asynchr\u00f3na forritun, sem gerir \u00fe\u00e9r kleift a\u00f0 skrifa skilvirkan k\u00f3\u00f0a. Me\u00f0 Dart skrifar \u00fe\u00fa \u00fe\u00e6r lei\u00f0beiningar sem Flutter mun nota til a\u00f0 byggja upp vi\u00f0m\u00f3t forritsins \u00fe\u00edns.<\/p>\n\n\n\n

\u00c1vinningur fyrir forritara<\/h3>\n\n\n\n

Dart b\u00fd\u00f0ur forriturum upp \u00e1 nokkra kosti. Einn helsti kosturinn er einf\u00f6ld ritun \u00feess, sem dregur \u00far n\u00e1msferlinum. \u00de\u00fa getur skrifa\u00f0 b\u00e6\u00f0i k\u00f3\u00f0a \u00e1 vi\u00f0skiptavinahli\u00f0 og net\u00fej\u00f3nshli\u00f0, sem gerir \u00fea\u00f0 fj\u00f6lh\u00e6ft. Frammista\u00f0a Dart er fram\u00farskarandi, \u00fear sem \u00fea\u00f0 \u00fe\u00fd\u00f0ir \u00ed f\u00e6ddur k\u00f3\u00f0i<\/strong>. \u00deetta \u00fe\u00fd\u00f0ir a\u00f0 forritin \u00fe\u00edn keyra hra\u00f0ar og nota minna vinnsluminni. Me\u00f0 \u00fev\u00ed a\u00f0 nota Dart getur\u00f0u b\u00faa til forrit<\/strong> sem eru b\u00e6\u00f0i \u00e1rei\u00f0anleg og vi\u00f0brag\u00f0sflj\u00f3t.<\/p>\n\n\n\n

Algeng notkunartilvik<\/h3>\n\n\n\n

\u00deannig hven\u00e6r \u00e6ttir \u00fe\u00fa a\u00f0 \u00edhuga a\u00f0 nota Dart? \u00dea\u00f0 hentar fullkomlega til \u00fer\u00f3unar vef- og fars\u00edmaforrita. Forritarar velja oft Dart til a\u00f0 b\u00faa til forrit sem virka \u00e1 m\u00f6rgum vettvangi, \u00fear sem \u00fea\u00f0 vinnur hn\u00f6kralaust me\u00f0 Flutter. Fyrir utan forritager\u00f0 er Dart alhli\u00f0a forritunarm\u00e1l sem hentar vel til a\u00f0 skrifa skipanal\u00ednut\u00f3l og \u00fej\u00f3nustuforrit. Dart m\u00e1 einnig nota til a\u00f0 byggja bakenda\u00fej\u00f3nustu e\u00f0a API-\u00fej\u00f3na me\u00f0 rammas\u00f6fnum eins og Shelf, Angel e\u00f0a Aqueduct, sem undirstrikar fj\u00f6lh\u00e6fni \u00feess \u00e1 \u00fdmsum svi\u00f0um. \u00deessi sveigjanleiki gerir \u00fea\u00f0 a\u00f0 ver\u00f0m\u00e6tu t\u00e6ki \u00ed verkf\u00e6rakistu hvers forritara.<\/p>\n\n\n\n

Flutter: Eiginleikar rammasins<\/h2>\n\n\n\n

Skiptum um g\u00edr og einbeitum okkur a\u00f0 Flutter, \u00feverpallaramma sem er hanna\u00f0ur fyrir hra\u00f0a \u00fer\u00f3un. Flutter gerir forriturum kleift a\u00f0 b\u00faa til innf\u00e6dda \u00fe\u00fdlda hugb\u00fana\u00f0arforrit fyrir fars\u00edma, vef og skj\u00e1bor\u00f0 \u00far einni k\u00f3\u00f0agrunni, sem dregur verulega \u00far \u00fer\u00f3unart\u00edma og kostna\u00f0i. Kynntu \u00fe\u00e9r hvernig \u00fea\u00f0 eflir \u00fer\u00f3unarferli\u00f0 og hva\u00f0 gerir \u00fea\u00f0 s\u00e9rstakt.<\/p>\n\n\n\n

Vi\u00f0m\u00f3ts\u00fe\u00e6ttir og notendavi\u00f0m\u00f3ts\u00fe\u00e6ttir<\/h3>\n\n\n\n

Flutter sn\u00fdst allt um widgets. Widgets eru byggingareiningar Flutter-forritsins og sj\u00e1 um allt sem \u00fe\u00fa s\u00e9r\u00f0 \u00e1 skj\u00e1num. \u00deau bj\u00f3\u00f0a upp \u00e1 r\u00edka m\u00f6guleika til a\u00f0 b\u00faa til fl\u00f3kin vi\u00f0m\u00f3t. \u00dea\u00f0 besta? \u00deau eru s\u00e9rsni\u00f0in, svo \u00fe\u00fa getur sni\u00f0i\u00f0 alla \u00fe\u00e6tti \u00fatlits og tilfinningar forritsins \u00fe\u00edns. Me\u00f0 yfirgripsmikilli widget-b\u00f3kasafni Flutter getur\u00f0u skapa\u00f0 einstaka og gr\u00edpandi notendaupplifanir.<\/p>\n\n\n\n

Flj\u00f3tlegur \u00fer\u00f3unarhringur<\/h3>\n\n\n\n

Hra\u00f0i er mikilv\u00e6gur \u00ed \u00fer\u00f3un, og Flutter skilar. Me\u00f0 \u201chot reload\u201d-eiginleikanum s\u00e9r\u00f0u breytingar samstundis \u00e1n \u00feess a\u00f0 endurr\u00e6sa forriti\u00f0. \u00deessi hra\u00f0a endurgj\u00f6f eykur framlei\u00f0ni og gerir \u00fe\u00e9r kleift a\u00f0 pr\u00f3fa og endurtaka hratt. \u00der\u00f3unarhra\u00f0i Flutter sparar t\u00edma og dregur \u00far pirringi, sem gerir \u00fea\u00f0 a\u00f0 upp\u00e1haldi me\u00f0al forritara.<\/p>\n\n\n\n

Flutter- og Dart-vistkerfi<\/h2>\n\n\n\n

Flutter- og Dart-vistkerfi\u00f0 b\u00fd\u00f0ur upp \u00e1 \u00f6flugt safn verkf\u00e6ra og b\u00f3kasafna sem h\u00f6nnu\u00f0 eru til a\u00f0 einfalda \u00fer\u00f3un fars\u00edmaforrita. \u00cd kjarna s\u00ednum gerir Dart-forritunarm\u00e1li\u00f0 forriturum kleift a\u00f0 skrifa skynsemi og notendavi\u00f0m\u00f3t fyrir Flutter-forrit. Flutter-rammasetning<\/strong> veitir r\u00edkan b\u00fana\u00f0 forhanna\u00f0ra v\u00edgletta og verkf\u00e6ra sem au\u00f0velda a\u00f0 b\u00faa til sj\u00f3nr\u00e6nt a\u00f0la\u00f0andi og gagnvirk notendavi\u00f0m\u00f3t. \u00der\u00f3unarumhverfi eins og Visual Studio Code og Android Studio bj\u00f3\u00f0a upp \u00e1 eiginleika eins og k\u00f3\u00f0auppfyllingu, villuleit og heita endurhle\u00f0slu sem fl\u00fdta fyrir \u00fer\u00f3unarferlinu og auka framlei\u00f0ni. Vistkerfi\u00f0 er enn frekar styrkt af st\u00f3rum, virkum samf\u00e9lagi forritara sem leggja til au\u00f0lindir, vi\u00f0b\u00e6tur og stu\u00f0ning. Saman gera \u00feessir \u00fe\u00e6ttir \u00fea\u00f0 au\u00f0veldara a\u00f0 b\u00faa til, pr\u00f3fa og setja upp h\u00e1g\u00e6\u00f0a forrit fyrir Android og a\u00f0ra palla me\u00f0 Flutter og Dart.<\/p>\n\n\n\n

A\u00f0 vinna saman: Flutter og Dart<\/h2>\n\n\n\n

Ranns\u00f6kum hvernig Dart og Flutter vinna saman til a\u00f0 b\u00faa til fr\u00e1b\u00e6r forrit. Me\u00f0 \u00fev\u00ed a\u00f0 nota Dart og Flutter<\/strong>Saman \u00fe\u00fd\u00f0ir a\u00f0 forritarar geti unni\u00f0 innan eins t\u00e6knilags fyrir allan k\u00f3\u00f0agrunninn og for\u00f0ast \u00fear me\u00f0 a\u00f0 \u00feurfa a\u00f0 skipta \u00e1 milli mismunandi forritunarm\u00e1la vi\u00f0 \u00fer\u00f3un, pr\u00f3fanir og villuleit. \u00deessi samr\u00e6mda n\u00e1lgun gerir forriturum kleift a\u00f0 skrifa, pr\u00f3fa og kemba k\u00f3\u00f0ann a\u00f0eins einu sinni \u00e1\u00f0ur en hann er settur upp \u00e1 m\u00f6rgum vettvangi, sem einfalda vinnufl\u00e6\u00f0i\u00f0 og minnka fl\u00e6kjustigi\u00f0. Samstarf \u00feeirra er \u00fea\u00f0 sem einkennir \u00fe\u00e1.<\/p>\n\n\n\n

Hvernig \u00feau fullkomna hvert anna\u00f0<\/h3>\n\n\n\n

Flutter og Dart eru par sem var b\u00fai\u00f0 til \u00ed himnar\u00edki. \u00c1rangursr\u00edk k\u00f3\u00f0akeyrsla Dart fellur fullkomlega a\u00f0 tj\u00e1ningarh\u00e6fileikum Flutter \u00ed notendavi\u00f0m\u00f3ti. Dart<\/a> Handlar r\u00f6kfr\u00e6\u00f0ina, \u00e1 me\u00f0an Flutter gerir \u00feessar lei\u00f0beiningar a\u00f0 veruleika. \u00deessi samvirkni skilar forritum sem eru b\u00e6\u00f0i hagn\u00fdt og falleg. \u00deegar \u00feau eru notu\u00f0 saman einfalda \u00feau \u00fer\u00f3unarferli\u00f0 og b\u00e6ta heildarframmist\u00f6\u00f0u.<\/p>\n\n\n\n

Kostir \u00feess a\u00f0 nota b\u00e6\u00f0i<\/h3>\n\n\n\n

Me\u00f0 \u00fev\u00ed a\u00f0 nota Flutter og Dart saman opnar \u00fe\u00fa \u00fe\u00e9r \u00fdmsa kosti. Sameinu\u00f0 n\u00e1lgun tryggir a\u00f0 forriti\u00f0 \u00feitt keyrir hn\u00f6kralaust \u00e1 mismunandi kerfum \u00e1 me\u00f0an \u00fe\u00fa getur vi\u00f0haldi\u00f0 s\u00f6mu k\u00f3\u00f0agrunninum. \u00deetta \u00fe\u00fd\u00f0ir a\u00f0 \u00fe\u00fa getur b\u00fai\u00f0 til samr\u00e6md og innf\u00e6dd-l\u00edk notendavi\u00f0m\u00f3t fyrir iOS, Android, vef og skj\u00e1bor\u00f0 \u00e1n \u00feess a\u00f0 endurtaka vinnu, sem einfaldar uppf\u00e6rslur og vi\u00f0hald. \u00de\u00fa f\u00e6r\u00f0 a\u00f0gang a\u00f0 st\u00f3ru samf\u00e9lagi og gn\u00e6g\u00f0 au\u00f0linda, sem gerir lausn vandam\u00e1la au\u00f0veldari. Ennfremur \u00fe\u00fd\u00f0ir n\u00e1lgunin me\u00f0 einum k\u00f3\u00f0agrunni minni vi\u00f0hald og hra\u00f0ari uppf\u00e6rslur. \u00deessi skilvirkni er \u00e1st\u00e6\u00f0an fyrir \u00fev\u00ed a\u00f0 margir forritarar velja \u00feetta kraftmikla tv\u00edeyki.<\/p>\n\n\n\n

Raunveruleg d\u00e6mi<\/h3>\n\n\n\n

Margir forritarar hafa n\u00e1\u00f0 miklum \u00e1rangri me\u00f0 Flutter og Dart. Til d\u00e6mis nota\u00f0i Hamilton-forriti\u00f0 \u00feau til a\u00f0 b\u00faa til r\u00edka og s\u00f6kkvandi upplifun fyrir leikh\u00fasunnendur. \u00deetta forrit s\u00fdnir hvernig h\u00f6nnunarm\u00f6guleikar Flutter og afk\u00f6st Dart vinna hli\u00f0 vi\u00f0 hli\u00f0. \u00deessi raunverulegu d\u00e6mi undirstrika hagn\u00fdta kosti \u00feess a\u00f0 nota b\u00e6\u00f0i verkf\u00e6rin saman.<\/p>\n\n\n\n

\u00deverpallaa\u00f0ger\u00f0ir<\/h2>\n\n\n\n

Flutter og Dart eru h\u00f6nnu\u00f0 fyrir \u00fevert \u00e1 vettvang forrit\u00fer\u00f3un, sem gerir \u00fe\u00e9r kleift a\u00f0 b\u00faa til forrit sem keyra \u00e1 Android- og iOS-t\u00e6kjum, sem og vef- og skj\u00e1bor\u00f0svettvangi, allt \u00far einni k\u00f3\u00f0agrunni. The Flutter-rammasetning<\/strong> innifelur verkf\u00e6ri og b\u00f3kas\u00f6fn sem sty\u00f0ja vettvangstengdar eiginleika og API-er, sem tryggja a\u00f0 forritin \u00fe\u00edn vir\u00f0ast innf\u00e6dd \u00e1 \u00f6llum t\u00e6kjum. The Dart forritunarm\u00e1l<\/strong> b\u00e6tir \u00feessa sveigjanleika me\u00f0 stu\u00f0ningi vi\u00f0 b\u00e6\u00f0i just-in-time og ahead-of-time \u00fe\u00fd\u00f0ingu, sem gerir k\u00f3\u00f0anum \u00fe\u00ednum kleift a\u00f0 vera f\u00ednstilltur fyrir frammist\u00f6\u00f0u og \u00fe\u00fdddur \u00ed f\u00e6ddur k\u00f3\u00f0i<\/strong> fyrir hvern vettvang. \u00deessi n\u00e1lgun einfaldar forritunar\u00fer\u00f3un, dregur \u00far vi\u00f0haldi og tryggir samr\u00e6mda virkni og \u00fatlit \u00e1 m\u00f6rgum vettvangi. Me\u00f0 Flutter og Dart getur\u00f0u \u00e1 skilvirkan h\u00e1tt b\u00fai\u00f0 til forrit sem n\u00e1 til notenda \u00e1 Android, iOS, vefnum og v\u00ed\u00f0ar.<\/p>\n\n\n\n

A\u00f0 velja r\u00e9ttan verkf\u00e6ri<\/h2>\n\n\n\n

\u00c1kv\u00f6r\u00f0un um hvort eigi a\u00f0 nota Flutter e\u00f0a Dart, e\u00f0a b\u00e6\u00f0i, fer eftir \u00fe\u00f6rfum verkefnisins. Ef \u00fer\u00f3un yfir m\u00f6rg st\u00fdrikerfi<\/strong> \u00deetta er forgangsatri\u00f0i; me\u00f0 \u00fev\u00ed a\u00f0 nota \u00fevert-vettvangsramma eins og Flutter getur\u00f0u sm\u00ed\u00f0a\u00f0 forrit fyrir marga palla (iOS, Android, vef, skj\u00e1bor\u00f0) \u00far sama k\u00f3\u00f0agrunni. \u00deetta getur einfalda\u00f0 \u00fer\u00f3un, b\u00e6tt skilvirkni og tryggt samr\u00e6mda notendaupplifun \u00e1 \u00f6llum t\u00e6kjum. Sko\u00f0um hvernig \u00e1 a\u00f0 taka r\u00e9tta \u00e1kv\u00f6r\u00f0un.<\/p>\n\n\n\n

Mat \u00e1 \u00fe\u00f6rfum verkefnisins<\/h3>\n\n\n\n

Byrja\u00f0u \u00e1 a\u00f0 meta kr\u00f6fur verkefnisins. \u00dearftu \u00feverpallalausn, e\u00f0a ertu a\u00f0 einbeita \u00fe\u00e9r a\u00f0 vef- e\u00f0a net\u00fej\u00f3nsforritum? Ef verkefni\u00f0 \u00feitt felur \u00ed s\u00e9r vef\u00fer\u00f3un e\u00f0a notendahli\u00f0\u00fer\u00f3un, eru b\u00e6\u00f0i Dart og Flutter \u00f6flugir kostir vegna \u00feess hve \u00feau geta skila\u00f0 h\u00e1g\u00e6\u00f0a, innf\u00e6ddri upplifun yfir marga palla. \u00cdhuga\u00f0u s\u00e9rfr\u00e6\u00f0i\u00feekkingu \u00fe\u00edna og \u00fe\u00e1 upplifun sem notendur vilja. Me\u00f0 \u00fev\u00ed a\u00f0 skilja \u00feessa \u00fe\u00e6tti getur\u00f0u \u00e1kve\u00f0i\u00f0 hvort Flutter, Dart e\u00f0a b\u00e6\u00f0i henti \u00fe\u00e9r best.<\/p>\n\n\n\n

Hven\u00e6r \u00e1 a\u00f0 nota Dart einn<\/h3>\n\n\n\n

\u00dea\u00f0 eru stundir \u00feegar Dart sk\u00edn \u00e1 eigin forsendum. Ef \u00fe\u00fa ert a\u00f0 byggja upp \u00fej\u00f3nshli\u00f0forrit e\u00f0a skipanal\u00ednut\u00f3l eru tungum\u00e1lseiginleikar Dart fullkomnir. H\u00e6fileiki \u00feess til a\u00f0 takast \u00e1 vi\u00f0 \u00f3samstilltar a\u00f0ger\u00f0ir gerir \u00fea\u00f0 fullkomi\u00f0 fyrir \u00feessar a\u00f0st\u00e6\u00f0ur. \u00cd sl\u00edkum tilfellum eru einfaldleiki og afk\u00f6st Dart allt sem \u00fe\u00fa \u00fearft.<\/p>\n\n\n\n

Hven\u00e6r \u00e1 a\u00f0 nota Flutter me\u00f0 Dart<\/h3>\n\n\n\n

Fyrir \u00fer\u00f3un margpallaforrita eru Flutter og Dart \u00f3vi\u00f0jafnanleg saman. Me\u00f0 Flutter skrifar \u00fe\u00fa allt notendavi\u00f0m\u00f3t og alla l\u00f3g\u00edk forritsins \u00fe\u00edns \u00ed Dart-k\u00f3\u00f0a, svo \u00fe\u00fa \u00fearft ekki a\u00f0 skipta \u00e1 milli mismunandi forritunarm\u00e1la vi\u00f0 \u00fer\u00f3un, pr\u00f3fanir e\u00f0a villuleit. \u00deau tryggja a\u00f0 forriti\u00f0 \u00feitt virki vel b\u00e6\u00f0i \u00e1 iOS og Android \u00far einni k\u00f3\u00f0agrunni. \u00deegar \u00fe\u00fa \u00fearft sj\u00f3nr\u00e6nt a\u00f0la\u00f0andi vi\u00f0m\u00f3t me\u00f0 mj\u00fakum hreyfimyndum er \u00feessi samsetning r\u00e9tta lausnin. Me\u00f0 \u00fev\u00ed a\u00f0 n\u00fdta b\u00e6\u00f0i getur\u00f0u skila\u00f0 f\u00ednp\u00fassa\u00f0ri og samr\u00e6mdri notendaupplifun yfir \u00f6ll t\u00e6ki.<\/p>\n\n\nH\u00e9r er t\u00f3mt.\n

\"Panta\u00f0u
<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Most people mix up Flutter and Dart like they\u2019re the same thing, especially since Dart and Flutter work closely together in cross platform development. Both are essential for building android apps and native mobile apps from a single codebase, which often leads to confusion. But using one without understanding the other can slow down your […]<\/p>\n","protected":false},"author":2,"featured_media":10332,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[20],"class_list":["post-11129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-development","tag-software-development"],"acf":[],"yoast_head":"\nFlutter vs. Dart - The Codest<\/title>\n<meta name=\"description\" content=\"Learn about Flutter vs. Dart to streamline your mobile app development and avoid confusion in cross platform projects.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/is\/blogg\/flutter-vs-dart\/\" \/>\n<meta property=\"og:locale\" content=\"is_IS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Flutter vs. Dart\" \/>\n<meta property=\"og:description\" content=\"Learn about Flutter vs. Dart to streamline your mobile app development and avoid confusion in cross platform projects.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thecodest.co\/is\/blogg\/flutter-vs-dart\/\" \/>\n<meta property=\"og:site_name\" content=\"The Codest\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-01T07:56:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-04T09:25:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thecodest.co\/app\/uploads\/2025\/12\/How-scaleups-build-fintech-apps-with-European-partners.png\" \/>\n\t<meta property=\"og:image:width\" content=\"960\" \/>\n\t<meta property=\"og:image:height\" content=\"540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"thecodest\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"thecodest\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"19 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/flutter-vs-dart\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/flutter-vs-dart\\\/\"},\"author\":{\"name\":\"thecodest\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#\\\/schema\\\/person\\\/7e3fe41dfa4f4e41a7baad4c6e0d4f76\"},\"headline\":\"Flutter vs. Dart\",\"datePublished\":\"2026-05-01T07:56:30+00:00\",\"dateModified\":\"2026-05-04T09:25:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/flutter-vs-dart\\\/\"},\"wordCount\":4175,\"publisher\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/flutter-vs-dart\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thecodest.co\\\/app\\\/uploads\\\/2025\\\/12\\\/How-scaleups-build-fintech-apps-with-European-partners.png\",\"keywords\":[\"software development\"],\"articleSection\":[\"Software Development\"],\"inLanguage\":\"is\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/flutter-vs-dart\\\/\",\"url\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/flutter-vs-dart\\\/\",\"name\":\"Flutter vs. Dart - 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