Cov txheej txheem:
Video: Yuav ua li cas hloov cov ntawv ntawm Android?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Teeb lub Ntawv nyeem ntawm Android EditText
Yog tias koj saib cov piv txwv saum toj no peb siv hauv : ntawv nyeem cuab yeej rau lub teeb yuav tsum ntawv nyeem rau EditText tswj hauv XML Layout file. Hauv qab no yog lwm txoj hauv kev los teeb tsa ntawv nyeem ntawm EditText tswj programmatically hauv cov ntaub ntawv ua haujlwm siv setText() txoj kev. EditText thiab = ( EditText ) findViewById(R.
Tsis tas li ntawd, koj puas tuaj yeem kho cov ntawv nyeem ntawm Android?
Koj tej zaum yuav tsis ua ntau ntau kho cov ntawv nyeem ntawm koj Android xov tooj. Zoo, tsis muaj loj kho kom raug , xws li rau daim ntawv lo lus lossis nqe nqe nqe txhiv. Txawm li cas los xij, los ntawm qee lub sijhawm, koj tuaj yeem pom koj tus kheej xav kho ib lo lus. Feem ntau nws yog ib qho kos npe tias koj 'ntau tshaj 25; cov me nyuam tsis zoo li tsis quav ntsej txog kho cov ntawv.
Ib tug kuj nug, koj puas tuaj yeem hloov cov ntawv nyeem? Pib hnub no, koj tuaj yeem kho tus ntawv nyeem ntawm koj lus tom qab xa lawv. Tsuas yog coj mus rhaub thiab tuav ntawm a lus , ces nias ' Kho kom raug '. Yog koj ' nyob rau ntawm desktop, nias lub xub khawm rau kho koj kawg lus . Cov lus yuav tso ib daim ntawv me me 'edited' kom nws yooj yim qhia qhov twg tau hloov kho.
Ib yam li ntawd ib tug yuav nug, dab tsi yog hloov cov ntawv hauv Android?
Hauv Android , EditText yog tus qauv nkag widget hauv hauv apps. Nws yog ib qho overlay TextView uas configures nws tus kheej kom kho tau. EditText yog subclass TextView nrog kho cov ntawv nyeem kev ua haujlwm. Peb feem ntau siv EditText nyob rau hauv peb daim ntawv thov nyob rau hauv thiaj li yuav muab ib tug tswv yim los yog ntawv nyeem teb, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv.
Kuv yuav hloov cov duab ntawv hauv kuv lub xov tooj li cas?
Kho cov ntawv thiab duab
- Kho cov ntawv nyeem. Xaiv cov ntawv uas koj xav hloov. Hauv lub toolbar muaj 3 txoj kev xaiv: txav cov ntawv, hloov cov ntawv thiab cov ntawv teev lus.
- Kho cov duab. Xaiv cov duab uas koj xav hloov. Koj tuaj yeem ob npaug nyem rau ntawm daim duab lossis siv cov duab hloov pauv hloov pauv.
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