O se gaioiga o le mata e tasi i le Android. … E pei o le faamalama po o le faavaa o Java. E ala i le fesoasoani a le gaioiga, e mafai ona e tuʻuina uma au vaega UI poʻo widgets i se mata e tasi. Ole 7 fa'asologa ole olaga ole Gaoioiga o lo'o fa'amatalaina ai le gaioiga o le a amio ile setete eseese.
What do you mean by activity in Android?
O se gaoioiga e maua ai le faamalama lea e toso ai e le app lona UI. This window typically fills the screen, but may be smaller than the screen and float on top of other windows. Generally, one activity implements one screen in an app.
O le a le gaioiga i le Android ma faʻataʻitaʻiga?
O se gaoioiga e fai ma sui se lau e tasi ma se faʻaoga faʻaoga just like window or frame of Java. Android activity is the subclass of ContextThemeWrapper class. The Activity class defines the following call backs i.e. events. You don’t need to implement all the callbacks methods.
O le a le eseesega i le va o le gaioiga ma le AppCompatActivity?
O le eseesega i le va o: Gaoioiga o le mea autu. Fa'avae ile Gaoioiga, FragmentActivity e maua ai le tomai e fa'aoga ai le Fragment. Fa'avae ile FragmentActivity, AppCompatActivity e maua ai foliga i ActionBar .
O a auala o le taamilosaga o le olaga o gaioiga Android?
Aotelega o Android Lifecycles
| Gaoioiga Metotia Si'osi'omaga | ||
|---|---|---|
| faiga | faʻamatalaga | Le isi auala |
| onCreate () | Valaau i le taimi muamua na faia ai le gaoioiga | onStart () |
| onRestart () | Vala'au ina ua uma le gaioiga, a'o le'i toe amata | onStart () |
| onStart () | Vala'au pe a o'o ina iloa atu e le tagata fa'aoga | onResume()/onStop() |
O le a le faʻaogaina o le faʻamoemoe i le Android?
O se fa'amoemoe e fai se gaioiga i luga o le lau. E masani ona faʻaaogaina e amata ai le gaioiga, auina atu faʻasalalauga faʻasalalauga, amataina auaunaga ma lafo feʻau i le va o gaioiga e lua. E lua fa'amoemoe o lo'o maua ile Android e pei ole Implicit Intents ma Explicit Intents. O se fa'ata'ita'iga fa'ata'ita'iga lea e amata ai se gaioiga fou i se gaioiga tuai.
O le a le eseesega i le va o le onCreate ma le onStart gaoioiga?
onCreate() is called when the when the activity is first created. onStart() is called when the activity is becoming visible to the user.
E na'o le tasi le vala'au ile onCreate?
@OnCreate e naʻo le amataga o le foafoaga, ma e tatau ai na o le tasi lava le valaau. Afai ei ai sau gaioiga e te manaʻo e faʻamaeʻa i le tele o taimi e tatau ona e tuʻuina i se isi mea, atonu i le @OnResume metotia.
Which callback is called when the activity restarts after stopping it?
For this reason, you should usually use the onStart() callback method as the counterpart to the onStop() method, because the system calls onStart() both when it creates your activity and when it restarts the activity from the stopped state.