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演習5.1 #5

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22 changes: 15 additions & 7 deletions app/login/src/main/java/jp/co/mixi/androidtraining/login/LoginScreen.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,10 @@ import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.material3.TextField
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.stringResource
Expand All @@ -29,33 +33,37 @@ fun LoginScreen(modifier: Modifier = Modifier) {
verticalArrangement = Arrangement.spacedBy(8.dp, Alignment.CenterVertically),
horizontalAlignment = Alignment.CenterHorizontally,
) {
var userId by remember { mutableStateOf("") }
var password by remember { mutableStateOf("") }
var loginEnabled by remember { mutableStateOf(false) }

TextField(
value = "", // TODO 入力した文字列が表示されるようにする
value = userId,
onValueChange = { value ->
// TODO 状態を更新する
userId = value
loginEnabled = userId.length >= 4 && password.length >= 8
},
modifier = Modifier.fillMaxWidth(),
label = { Text(text = stringResource(R.string.user_id)) },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Ascii),
singleLine = true,
)

TextField(
value = "", // TODO 入力した文字列が表示されるようにする
value = password,
onValueChange = { value ->
// TODO 状態を更新する
password = value
loginEnabled = userId.length >= 4 && password.length >= 8
},
modifier = Modifier.fillMaxWidth(),
label = { Text(text = stringResource(R.string.password)) },
visualTransformation = PasswordVisualTransformation(),
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
singleLine = true,
)

Button(
onClick = {},
modifier = Modifier.fillMaxWidth(),
enabled = true, // TODO ユーザーIDが4文字以上、かつパスワードが8文字以上入力されたら押せるようにする
enabled = loginEnabled,
) {
Text(text = stringResource(R.string.login))
}
Expand Down