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118
app/src/main/java/li/songe/gkd/ui/component/AppBarTextField.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| package li.songe.gkd.ui.component | ||
|
|
||
| import androidx.compose.foundation.interaction.MutableInteractionSource | ||
| import androidx.compose.foundation.layout.PaddingValues | ||
| import androidx.compose.foundation.layout.fillMaxWidth | ||
| import androidx.compose.foundation.layout.heightIn | ||
| import androidx.compose.foundation.text.BasicTextField | ||
| import androidx.compose.foundation.text.KeyboardActions | ||
| import androidx.compose.foundation.text.KeyboardOptions | ||
| import androidx.compose.foundation.text.selection.LocalTextSelectionColors | ||
| import androidx.compose.material3.LocalTextStyle | ||
| import androidx.compose.material3.MaterialTheme | ||
| import androidx.compose.material3.Text | ||
| import androidx.compose.material3.TextFieldDefaults | ||
| import androidx.compose.material3.TextFieldDefaults.indicatorLine | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.CompositionLocalProvider | ||
| import androidx.compose.runtime.SideEffect | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.runtime.setValue | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.focus.FocusRequester | ||
| import androidx.compose.ui.focus.focusRequester | ||
| import androidx.compose.ui.graphics.Color | ||
| import androidx.compose.ui.graphics.SolidColor | ||
| import androidx.compose.ui.graphics.takeOrElse | ||
| import androidx.compose.ui.text.TextRange | ||
| import androidx.compose.ui.text.TextStyle | ||
| import androidx.compose.ui.text.input.TextFieldValue | ||
| import androidx.compose.ui.text.input.VisualTransformation | ||
| import androidx.compose.ui.unit.dp | ||
| import androidx.compose.ui.unit.sp | ||
|
|
||
| /** | ||
| * https://stackoverflow.com/questions/73664765 | ||
| */ | ||
| @Composable | ||
| fun AppBarTextField( | ||
| value: String, | ||
| onValueChange: (String) -> Unit, | ||
| hint: String, | ||
| modifier: Modifier = Modifier, | ||
| keyboardOptions: KeyboardOptions = KeyboardOptions.Default, | ||
| keyboardActions: KeyboardActions = KeyboardActions.Default, | ||
| ) { | ||
| val interactionSource = remember { MutableInteractionSource() } | ||
| val textStyle = LocalTextStyle.current | ||
| // make sure there is no background color in the decoration box | ||
| val colors = TextFieldDefaults.colors( | ||
| focusedContainerColor = Color.Unspecified, | ||
| unfocusedContainerColor = Color.Unspecified, | ||
| disabledContainerColor = Color.Unspecified, | ||
| ) | ||
|
|
||
| // If color is not provided via the text style, use content color as a default | ||
| val textColor = textStyle.color.takeOrElse { | ||
| MaterialTheme.colorScheme.onSurface | ||
| } | ||
| val mergedTextStyle = textStyle.merge(TextStyle(color = textColor, lineHeight = 50.sp)) | ||
|
|
||
| // request focus when this composable is first initialized | ||
| // val focusRequester = FocusRequester() | ||
| // SideEffect { | ||
| // focusRequester.requestFocus() | ||
| // } | ||
|
|
||
| // set the correct cursor position when this composable is first initialized | ||
| var textFieldValue by remember { | ||
| mutableStateOf(TextFieldValue(value, TextRange(value.length))) | ||
| } | ||
| textFieldValue = textFieldValue.copy(text = value) // make sure to keep the value updated | ||
|
|
||
| CompositionLocalProvider( | ||
| LocalTextSelectionColors provides LocalTextSelectionColors.current | ||
| ) { | ||
| BasicTextField( | ||
| value = textFieldValue, | ||
| onValueChange = { | ||
| textFieldValue = it | ||
| // remove newlines to avoid strange layout issues, and also because singleLine=true | ||
| onValueChange(it.text.replace("\n", "")) | ||
| }, | ||
| modifier = modifier | ||
| .fillMaxWidth() | ||
| .heightIn(32.dp) | ||
| .indicatorLine( | ||
| enabled = true, | ||
| isError = false, | ||
| interactionSource = interactionSource, | ||
| colors = colors | ||
| ), | ||
| // .focusRequester(focusRequester), | ||
| textStyle = mergedTextStyle, | ||
| cursorBrush = SolidColor(MaterialTheme.colorScheme.primary), | ||
| keyboardOptions = keyboardOptions, | ||
| keyboardActions = keyboardActions, | ||
| interactionSource = interactionSource, | ||
| singleLine = true, | ||
| decorationBox = { innerTextField -> | ||
| // places text field with placeholder and appropriate bottom padding | ||
| TextFieldDefaults.DecorationBox( | ||
| value = value, | ||
| innerTextField = innerTextField, | ||
| enabled = true, | ||
| singleLine = true, | ||
| visualTransformation = VisualTransformation.None, | ||
| interactionSource = interactionSource, | ||
| isError = false, | ||
| placeholder = { Text(text = hint) }, | ||
| colors = colors, | ||
| contentPadding = PaddingValues(bottom = 4.dp), | ||
| ) | ||
| }, | ||
| ) | ||
| } | ||
| } |
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