An warware: javafx sami taga a cikin mai sarrafawa

sami taga a cikin controller A cikin duniyar shirye-shiryen Java, ฦ™alubale ษ—aya na gama gari da masu haษ“akawa ke fuskanta shine yadda ake samun taga a ajin mai sarrafawa. Masu sarrafawa sune ฦ™ashin bayan kowace aikace-aikacen JavaFX yayin da suke sarrafa bayanan aikace-aikacen da kuma ayyukan gaba ษ—aya. A yau, za mu rufe irin wannan batu kuma mu koyi yadda ake aiwatar da mafita, tattauna tsarin mataki-mataki, nutsewa cikin ษ—akunan karatu da ayyuka masu alaฦ™a, da bincika yanayi iri ษ—aya inda wannan ilimin zai iya taimakawa. Don haka, bari mu fara tafiya zuwa duniyar shirye-shiryen Java da masu sarrafa taga.

Gabatarwa
JavaFX sanannen ษ—akin karatu ne don ฦ™irฦ™irar wadatattun mu'amalar mai amfani da hoto don aikace-aikacen zamani. ฦŠaya daga cikin fasaloli masu ฦ™arfi da yawa shine ikon raba dabaru na aikace-aikacen zuwa masu sarrafawa, yana sa lambar ta fi tsari da sauฦ™i don kiyayewa. Koyaya, wani lokacin mai haษ“akawa na iya buฦ™atar yin aiki tare da taga kai tsaye, kuma anan shine ฦ™alubalen samun taga daga mai sarrafawa. Za mu duba wannan tare da maganin mu wanda yayi amfani da horo aji yayin da ake cin gajiyar sassauฦ™an JavaFX da haษ“akawa.

Shigar da Window a cikin Mai Gudanarwa

Tushen maganin yana cikin ajin Stage - ษ—ayan manyan tubalan ginin JavaFX. Mataki yana wakiltar babban taga a cikin aikace-aikacen JavaFX kuma ya ฦ™unshi yanki na gani don yanayin aikace-aikacen ku. Don samun taga a cikin mai sarrafawa, ya kamata ku wuce bayanin matakin zuwa mai sarrafawa da zarar an ฦ™irฦ™ira shi.

public class Main extends Application {
    @Override
    public void start(Stage primaryStage) throws Exception {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("MainWindow.fxml"));
        Parent root = loader.load();
        
        MainWindowController controller = loader.getController();
        controller.setWindow(primaryStage);

        primaryStage.setTitle("Sample Application");
        primaryStage.setScene(new Scene(root));
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

Na farko, FXMLLoader yana loda fayil ษ—in FXML, wanda ke bayyana ฦ™irar mai amfani na aikace-aikacen. Sa'an nan, amfani da samunController() Hanyar, muna samun nuni zuwa MainWindowController kuma mu wuce matakin farko na mai sarrafawa, yana ba shi damar shiga taga kai tsaye.

Ajin MainWindowController zai yi kama da haka:

public class MainWindowController {
    private Stage window;

    public void setWindow(Stage window) {
        this.window = window;
    }
    
    // Other methods go here
}

Yanzu, mai sarrafawa yana da cikakkiyar damar shiga taga kuma yana iya aiwatar da ayyuka daban-daban akansa dangane da buฦ™atun aikace-aikacen.

Dakunan karatu na JavaFX da Ayyuka

JavaFX babban ษ—akin karatu ne mai ฦ™arfi wanda ke ba da fasali da yawa don ฦ™irฦ™irar aikace-aikace masu jan hankali, abubuwan gani. Tare da horo aji, yana ba da wasu azuzuwan da yawa da kuma abubuwan haษ—in gwiwa don ฦ™irฦ™irar cikakken UI don aikace-aikacen ku. Wasu daga cikin mahimman abubuwan sun haษ—a da:

  • scene: Akwati don duk abubuwan gani na aikace-aikacen. Kowane Mataki yana da Fage, kuma Gidan Yanar Gizo yana da alhakin sarrafa matakan gani na mai amfani.
  • FXMLLoader: Yana loda fayilolin .fxml waษ—anda ke ayyana mahaษ—in mai amfani, yana sauฦ™aฦ™a tsara tsararrun shimfidu na UI da raba dabaru na UI daga lambar baya.
  • kumburi: Node yana wakiltar kowane abu na gani a aikace-aikacen JavaFX, kamar lakabi, maษ“alli, da shimfidu. Duk abubuwan abubuwan gani a cikin aikace-aikacen sun gaji daga Node.
  • Iyaye: ฦ˜ararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜wararren ฦ˜waฦ™walwa na ฦ˜aฦ™walwa na ฦ˜aฦ™walwa na ฦ˜aฦ™walwa na ฦ˜aฦ™walwa na ฦ˜aฦ™walwa na ฦ˜aฦ™walwa na ฦ˜aฦ™ฦ™arfan ฦ˜aฦ™wal ) wanda ke ba da damar ษ—aya ko fiye da nodes na yara, wanda za a iya tsara shi bisa ga ฦ™ayyadaddun ฦ™ayyadaddun ฦ™a'idodin iyaye.

Gudanar da Makamantan Al'amurra

Samun taga a cikin mai sarrafawa shine kawai amfani da amfani guda ษ—aya don aiki tare da ษ—akunan karatu da ayyuka na JavaFX, amma akwai wasu al'amuran da yawa inda wannan ilimin zai iya taimakawa sosai. Misali:

  • Abun Ciki Mai Sauฦ™i: Fahimtar yadda ake aiki tare da misalin taga zai iya taimakawa ฦ™irฦ™irar aikace-aikacen da ke canzawa tsakanin abun ciki daban-daban a cikin taga guda, haษ“aka ฦ™warewar mai amfani.
  • Bayyanar Tagan Na Musamman: Samun kai tsaye zuwa taga a cikin mai sarrafawa yana bawa mai haษ“akawa damar canza kamannin sa dangane da zaษ“in mai amfani ko buฦ™atun aikace-aikacen, kamar canza launuka, bayyanannu ko siffa.
  • Ikon taga: Yin aiki tare da misalin taga, mai haษ“akawa na iya ba wa masu amfani ฦ™arin iko akan taga, kamar haษ“akawa, rage girman, haษ“akawa, ko rufe taga da tsari.

A ฦ™arshe, sanin yadda ake samun taga a cikin mai sarrafawa fasaha ce mai mahimmanci ga masu haษ“aka JavaFX. Ta hanyar fahimtar yadda ake aiki tare da ajin Stage da makamantansu a cikin JavaFX, masu haษ“akawa na iya haษ“aka damar aikace-aikacen su kuma ฦ™irฦ™irar mu'amalar masu amfani masu inganci da gogewa.

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