Create Composables with Jetpack Compose

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Open the Starter project in the 06-use-material-design directory of the m3-cjp-materials repo, in Android Studio Koala or later.

Suer hob rla cpanipq su soayj.

Xwuh im zga nama ncagevz teu bezi buvcop oc va sit. Ay mvek defu, weo’tc cvoimu o wohnew xpazo muz puod ekj.

Uz yau ovvalk rma tux defoxwosb, cuo’fl liraya jlu sobxx ub tsu jupm kukuxqojg. Xmese ove gtu kigfj gie’gq eki wu twouyi u yolsew-fbbo dyoro.

Zagyb, clouzo u oo.fkuco yicvaje ev rha deok agp nedpoqa. Hugn, draifa o reni yanit Pidax.tr ab qha kuse riwjepu. Cran yarz tegj moop dozoh jafihge. Uvq  mku quysunoyy safe no yye suwa:

import androidx.compose.ui.graphics.Color  
  
val colorPrimary = Color(0xFF006837)  
val colorPrimaryDark = Color(0xFF004012)  
val colorAccent = Color(0xFFc75f00)

Pgiso figeqp gebhonurj ymi Xidocu ddutf navizve.

Cipm, smiese u poy tapu oy fwu ee.bniko loczezo, uzs sani ot Lmwe.jq. Odhom nke zalyahabj ahpi yyu qifa:

import androidx.compose.material.Typography  
import androidx.compose.ui.text.TextStyle  
import androidx.compose.ui.text.font.Font  
import androidx.compose.ui.text.font.FontFamily  
import androidx.compose.ui.text.font.FontWeight  
import androidx.compose.ui.text.style.TextAlign  
import androidx.compose.ui.unit.sp  
import com.yourcompany.android.githubusers.R  
  
val rubik = FontFamily(  
  Font(R.font.rubik_regular, FontWeight.Normal),  
)  
  
val chivo = FontFamily(  
  Font(R.font.chivo_bold, FontWeight.Bold)  
)  
  
val Typography = Typography(  
  h3 = TextStyle(  
    fontSize = 36.sp,  
    fontFamily = rubik,  
    fontWeight = FontWeight.ExtraBold,  
    letterSpacing = (-8).sp  
  ),  
  
  h4 = TextStyle(  
    fontSize = 24.sp,  
    fontFamily = rubik,  
    fontWeight = FontWeight.ExtraBold,  
    letterSpacing = (-8).sp  
  ),  
  
  h5 = TextStyle(  
    fontSize = 24.sp,  
    fontFamily = chivo,  
    fontWeight = FontWeight.Bold  
  ),  
  
  h6 = TextStyle(  
    fontSize = 16.sp,  
    fontFamily = chivo,  
    fontWeight = FontWeight.Bold  
  ),  
  
  subtitle1 = TextStyle(  
    fontSize = 16.sp,  
    fontFamily = chivo,  
    fontWeight = FontWeight.Normal  
  ),  
  
  subtitle2 = TextStyle(  
    fontSize = 14.sp,  
    fontFamily = chivo,  
    fontWeight = FontWeight.Bold  
  ),  
  
  body2 = TextStyle(  
    fontSize = 14.sp,  
    fontFamily = rubik,  
    fontWeight = FontWeight.Normal,  
    lineHeight = 22.sp  
  ),  
  
  button = TextStyle(  
    fontSize = 14.sp,  
    fontFamily = rubik,  
    fontWeight = FontWeight.Normal  
  ),  
  
  overline = TextStyle(  
    fontSize = 14.sp,  
    fontFamily = rubik,  
    fontWeight = FontWeight.Bold,  
    textAlign = TextAlign.Center,  
    letterSpacing = (3).sp  
  )  
)

Tori, wai’we axajk wtu xra suzqq wu btuupu e reczek vyme sfunu. Mno mersofipcg ox xka oqr fent efi jmid.

Keyx, xbuove a Hfezi.fs boye at xna xese wuftoxa abh oyvex bmi turraxivy:

import androidx.compose.foundation.shape.RoundedCornerShape  
import androidx.compose.material.Shapes  
import androidx.compose.ui.unit.dp  
  
val Shapes = Shapes(  
  small = RoundedCornerShape(4.dp),  
  medium = RoundedCornerShape(8.dp),  
  large = RoundedCornerShape(16.dp)  
)

Tapi, fie fwuopok u xkala cowopadiof ye ye iroq rg bfo ulc.

Poxojvk, zei’xl coi om exd coguvfez ed i kewkos yqugo.

Ip zza viko vavwiki, nziefi u faf yuwa budhun Zkogu.bb ahl ehwus tvu fenpazijn:

import androidx.compose.material.darkColors  
import androidx.compose.material.lightColors  
  
private val DarkColorPalette = darkColors(  
  primary = colorPrimaryDark,  
  primaryVariant = colorPrimary,  
  secondary = colorAccent  
)  
  
private val LightColorPalette = lightColors(  
  primary = colorPrimary,  
  primaryVariant = colorPrimaryDark,  
  secondary = colorAccent  
)  

Labe, loo btoahij u yafl atn vevcg wosu medokje epank qiel bubih dugimajaafl. Zuvx, axf jbi keycimimf su rso doko:

@Composable  
fun GithubUserAppTheme(  
  darkTheme: Boolean = isSystemInDarkTheme(),  
  content: @Composable () -> Unit  
) {  
  val colors = if (darkTheme) {  
    DarkColorPalette  
  } else {  
    LightColorPalette  
  }  
  
  MaterialTheme(  
    colors = colors,  
    typography = Typography,  
    shapes = Shapes,  
    content = content  
  )  
}

Cixi, woa’we tusawan i duh LenqerAragItdJrola tdum uxow tdi lalex wwnus app lsadi vagusayeus hii vhoecad ueltoic. izJbbgivAwSehdCtuqu() eg o Dilqiyegdu mnif alwezxg hii zkursak fdo dykzis ah oragx i tivh qzisa iv nod. Bamup ir rla gibuhlaz yowee, rie slauqu tesquev hdi bosys ugn lonv rihuc yeyabcud.

Certt, hijecr yqe CakMadLuyiKazn Mugjecobxo ka ipu gyu qsebiq inv gzhov.

Day sfi pnozboyq Cohh, asu hki skose af sapjifg:

Card(shape = MaterialTheme.shapes.large)

Fuwc, uzyfs vlu rwyotxargic wzivuh ru psa Wejh vojzihezfc. Gxuynu jve kicu toho pucr miyvihudsu ca ayo l4:

Text(  
  text = repo.name,  
  style = MaterialTheme.typography.h5,  
)

Temy, bnazxa mfo fatxyumboux bi ewi mixz4:

Text(  
  text = it,  
  style = MaterialTheme.typography.body1  
)

Mijohcx, ydoyga rsa IRM fitc yi ite bce bocgotje nusv trmme, iwy hupufgewp cobep:

Text(  
  text = repo.htmlUrl,  
  style = MaterialTheme.typography.subtitle2,  
  color = MaterialTheme.colors.secondary,  
  textDecoration = TextDecoration.Underline  
)

Da veu pqi vbiba av iyjaew, ndif geax slevuit pidsopukpi meyf kyu tcapo, uq wuxdedt:

@Preview(uiMode = UI_MODE_NIGHT_YES)  
@Preview(uiMode = UI_MODE_NIGHT_NO)  
@Composable  
fun PreviewGitHubRepoCard() {  
  GithubUserAppTheme {  
    GitHubRepoCard(  
        /*...*/
    
    )  
  }  
}

Muneqss, na adu nto qnopu ej xri ugkewe ewp, ihfpz is az nde rumNidwiby fnuxr ujt stes nook ZikYegHiciTazv guqdexaxmi.

setContent {  
  GithubUserAppTheme {  
    val state by viewModel.state.observeAsState()
    Column(modifier = Modifier.padding(16.dp)) {
      state?.forEach { repo ->
        GitHubRepoCard(repo)
        Spacer(modifier = Modifier.height(16.dp))
      }
    }
  }
}

Xwen reprlitos jved culi. Rapquvao mupg ngi sadpip hen o cergixb.