O lau fesili: E fa'afefea ona ou fa'aogaina le Android support v7 widget toolbar?

E fa'afefea ona ou fa'aogaina le Android toolbar?

Fa'aopoopo se Toolbar i se Gaioiga

1. Fa'aopoopo le v7 appcompat support library i lau poloketi, e pei ona fa'amatalaina ile Support Library Setup.
2. Ia mautinoa e faʻalautele le gaioiga AppCompatActivity : ...
3. I le app manifest, seti le elemene e faʻaaoga ai se tasi o autu NoActionBar a le appcompat. …
4. Fa'aopoopo se Toolbar ile fa'atulagaina ole gaioioiga.

How do I use toolbars?

Su'e le Toolbar View mai le lisi o Palette o lo'o i le pito i luga agavale vaega o le fa'amalama Design. Toso ma tuu e pei o se tamaititi o le ConstraintLayout. Ina ia foliga foliga tutusa ma ActionBar, faʻaopoopo le AppBarLayout i le activity_main. xml faila i se faiga e avea ai le Toolbar ma ana tama.

How do I use AppCompatActivity?

It was introduced in API 21 (Android 5.0 Lollipop).

...

Android Toolbar mo le AppCompatActivity

1. Laasaga 1: Siaki Gradle fa'alagolago. …
2. Laasaga 2: Suia lau faila layout.xml ma faʻaopoopo se sitaili fou. …
3. Laasaga 3: Faʻaopoopo se lisi mo le meafaigaluega. …
4. Laasaga 4: Faaopoopo meafaigaluega i le gaoioiga. …
5. Laasaga 5: Faʻasili (Faʻaopoopo) le lisi i le meafaigaluega.

E fa'afefea ona ou fa'aopoopoina se fa'ailoga i le Android toolbar?

Fa'aopoopoina o Ata ma Mea Fa'aitu ile Android Toolbar

1. A e maua i luga le pusa talatalanoaga, filifili le lisi mai le ituaiga Punaoa pa'ū i lalo:
2. O le pusa igoa o le Directory i le pito i luga o le a suia i le lisi:
3. Kiliki le OK e fai ai se pusa lisi i totonu o lau lisi res:
4. Ia kiliki sa'o lau faila lisi fou.

O le a le faʻaogaina o meafaigaluega i le Android?

Toolbar was introduced in Android Lollipop, API 21 release and is the spiritual successor of the ActionBar. It’s a ViewGroup that can be placed anywhere in your XML layouts. Toolbar’s appearance and behavior can be more easily customized than the ActionBar.

What is the use of toolbar?

A toolbar is part of a window, often a bar across the top, that contains buttons that execute commands when you click them. O le tele o talosaga o lo'o i ai ni mea faigaluega e mafai ona e fa'avasegaina ina ia faigofie ona maua ma faigofie ona iloa tulafono e te fa'aaoga soo. O le tele o pusa talatalanoa e iai fo'i mea faigaluega.

O a mea na tutupu i meafaigaluega?

O faʻamau meafaigaluega e tuʻuina atu i le aoina o ki, o le aoina o loʻo tuʻuina atu i le meafaigaluega, ma faʻaopoopo le meafaigaluega i le fomu. I luga o le Kiliki mea na tupu i le toolbar, o le Button property o le ToolBarButtonClickEventArgs ua iloiloina, ma tatala le pusa talanoaga talafeagai.

When should I use AppCompatActivity?

2019: Use AppCompatActivity



At the time of this writing (check the link to confirm it is still true), the Android Documentation recommends using AppCompatActivity if you are using an App Bar. Beginning with Android 3.0 (API level 11), all activities that use the default theme have an ActionBar as an app bar.

What is AppCompatActivity class in Android?

androidx.appcompat.app.AppCompatActivity. Vasega faavae for activities that wish to use some of the newer platform features on older Android devices. Some of these backported features include: Using the action bar, including action items, navigation modes and more with the setSupportActionBar(Toolbar) API.

Why we use extend AppCompatActivity?

Extending a class



support. … Being an example of an AppCompatActivity in Android means that you can take advantage of all the AppCompatActivity class’s prewritten code. When you extend an existing Java class (such as the AppCompatActivity class), you create a new class with the existing class’s functionality.