O le va'aiga o se poloka fa'avae autu ole UI (User Interface) ile Android. O le va'aiga o se tama'i pusa fa'afa'afa'afa e tali atu i mea fa'aoga a tagata. Fa'ata'ita'iga: EditText , Button , Checkbox , etc.. ViewGroup o se atigipusa le vaaia o isi vaaiga (vaaiga a tamaiti) ma isi vaega va'aiga.
O le a le va'aiga ma vasega ViewGroup i le Android?
Va'aiga o le vasega fa'avae mo widgets, lea e fa'aaogaina e fatu ai vaega UI fa'afeso'ota'i e pei o fa'amau, fa'amatalaga tusitusiga, ma isi.
O le a le Android ViewGroup?
A ViewGroup is a special view that can contain other views. The ViewGroup is the base class for Layouts in android, like LinearLayout , RelativeLayout , FrameLayout etc. In other words, ViewGroup is generally used to define the layout in which views(widgets) will be set/arranged/listed on the android screen.
O le a le fa'amoemoe autu o le ViewGroup?
O le a le fa'amoemoe autu o le ViewGroup? E fa'apotopoto fa'atasi manatu masani e fa'aogaina e le au atina'e i polokalama Android. E fai ma koneteina mo mea Va'ai, ma e nafa ma le fa'atulagaina o mea i totonu. E manaʻomia le faia o se vaʻaiga fefaʻasoaaʻi o se auala e faʻapipiʻi ai TextViews i luga o se lau.
What are the views in Android?
Here we have some of the most commonly used android View classes:
- TextView.
- EditText.
- Pātene.
- ImageView.
- ImageButton.
- CheckBox.
- RadioButton.
- ListView.
O le a le faʻaogaina o le ConstraintLayout i le Android?
Va'aiga Fa'atonu Fa'atonu Android
Android ConstraintLayout e fa'aoga e fa'amatala ai se fa'atulagaga e ala i le tu'uina atu o tapula'a mo va'aiga a tamaiti uma/widget e fa'atatau i isi va'aiga o lo'o iai. Ole ConstraintLayout e tutusa ma RelativeLayout, ae sili atu le malosi.
O fea o lo'o tu'uina ai fa'asologa i le Android?
I le Android, o le XML-based layout o se faila e faʻamalamalamaina ai widget eseese e faʻaoga i le UI ma sootaga i le va o na widget ma a latou koneteina. O lo'o fa'aogaina e le Android faila fa'atulagaina e fai ma punaoa. O le mea lea o lo'o teuina ai fa'asologa i totonu o le faila reslayout.
O le a le Clipchildren?
2, mafai e ala i le Android:layout_gravity pulea le auala o le vaega o le faaaliga. … 3, Android:clipchildren uiga: pe faatapulaa le vaaiga a tamaiti i totonu o lona tulaga lautele.
What is intent used for in Android?
O fa'amoemoega e fa'aoga e fa'ailo atu ai i le Android system e iai se mea na tupu. E masani ona fa'amatala e fa'amoemoe le gaioiga e tatau ona fa'atino ma tu'uina atu fa'amaumauga e tatau ona fai ai sea gaioiga. Mo se fa'ata'ita'iga, e mafai e lau talosaga ona amata se vaega su'esu'e mo se URL patino e ala i se fa'amoemoe.
O le a le gaioiga i luma i le Android?
O se au'aunaga pito i luma e fa'atino ai se gaioiga e iloagofie e le tagata fa'aoga. Mo se fa'ata'ita'iga, e fa'aogaina e se app leo se tautua pito i luma e tā ai se pese fa'alogo. O auaunaga i luma e tatau ona fa'aalia se Fa'aaliga. O lo'o fa'aauau pea auaunaga i luma e tusa lava pe le o fegalegaleai le tagata fa'aoga ma le app.
O le a le faʻaogaina o le laina laina i le Android?
LinearLayout o se vaega va'aiga e fa'aogatasi tamaiti uma i se itu e tasi, fa'asaga i luga pe fa'alava. E mafai ona e faʻamaonia le faʻatonuga faʻatasi ma le Android:orientation attribute. Fa'aaliga: Mo le lelei o le fa'atinoga ma mea faigaluega lagolago, e tatau ona e fausia lau fa'atulagaina ile ConstraintLayout.
E fa'afefea ona e tapeina se gaioiga?
Tatala lau talosaga, tatala se Gaoioiga fou, fai se galuega. Ki'i le fa'amau Home (o le talosaga o le a i tua, i le tulaga taofi). Fasi le Talosaga - auala sili ona faigofie o le kiliki i le mumu "taofi" faamau i le Android Studio. Toe fo'i i lau talosaga (fa'alauiloa mai Recent apps).
O le a le vaega o le taamilosaga o le olaga i le Android?
E mafai ona faʻaaogaina se vaega i le tele o gaioiga. O le sologa o le ola o fasi vaega e feso'ota'i vavalalata ma le si'osi'omaga o lona fa'agaioiga talimalo o lona uiga pe a taofi le gaioiga, o le a taofia fo'i vaega uma o lo'o avanoa i le gaioiga. E mafai e se vaega ona fa'atinoina se amio e leai se vaega fa'aoga fa'aoga.
O le a le fa'aoga ole findViewById ile Android?
findViewById o le auala lea e maua ai le View e le ID o loʻo tuʻuina atu. Lea findViewById(R. id. myName) su'e le Va'aiga ma le igoa 'myName'.
O le a le faʻaogaina o le OnClickListener i le Android?
I le Android, o le OnClickListener() interface e iai le onClick(View v) auala e ta'ua pe a kiliki le va'aiga (vaega). O le fa'ailoga mo galuega a se vaega o lo'o tusia i totonu o lenei metotia, ma fa'atonu le tagata fa'alogologo e fa'aaoga le setOnClickListener() metotia.
O a ituaiga e 4 o vaega ole app?
E fa ituaiga eseese o vaega app:
- Gaoioiga.
- Auaunaga.
- Fa'asalalauga fa'asalalau.
- Tu'uina atu mataupu.