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Button.kt
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Button.kt
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/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.jetsnack.ui.components
import android.content.res.Configuration.UI_MODE_NIGHT_YES
import androidx.compose.foundation.BorderStroke
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.indication
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.RowScope
import androidx.compose.foundation.layout.defaultMinSize
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.ButtonDefaults
import androidx.compose.material.MaterialTheme
import androidx.compose.material.ProvideTextStyle
import androidx.compose.material.Text
import androidx.compose.material.ripple.rememberRipple
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Brush
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.RectangleShape
import androidx.compose.ui.graphics.Shape
import androidx.compose.ui.semantics.Role
import androidx.compose.ui.tooling.preview.Preview
import com.example.jetsnack.ui.theme.JetsnackTheme
@Composable
fun JetsnackButton(
onClick: () -> Unit,
modifier: Modifier = Modifier,
enabled: Boolean = true,
interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
shape: Shape = ButtonShape,
border: BorderStroke? = null,
backgroundGradient: List<Color> = JetsnackTheme.colors.interactivePrimary,
disabledBackgroundGradient: List<Color> = JetsnackTheme.colors.interactiveSecondary,
contentColor: Color = JetsnackTheme.colors.textInteractive,
disabledContentColor: Color = JetsnackTheme.colors.textHelp,
contentPadding: PaddingValues = ButtonDefaults.ContentPadding,
content: @Composable RowScope.() -> Unit
) {
JetsnackSurface(
shape = shape,
color = Color.Transparent,
contentColor = if (enabled) contentColor else disabledContentColor,
border = border,
modifier = modifier
.clip(shape)
.background(
Brush.horizontalGradient(
colors = if (enabled) backgroundGradient else disabledBackgroundGradient
)
)
.clickable(
onClick = onClick,
enabled = enabled,
role = Role.Button,
interactionSource = interactionSource,
indication = null
)
) {
ProvideTextStyle(
value = MaterialTheme.typography.button
) {
Row(
Modifier
.defaultMinSize(
minWidth = ButtonDefaults.MinWidth,
minHeight = ButtonDefaults.MinHeight
)
.indication(interactionSource, rememberRipple())
.padding(contentPadding),
horizontalArrangement = Arrangement.Center,
verticalAlignment = Alignment.CenterVertically,
content = content
)
}
}
}
private val ButtonShape = RoundedCornerShape(percent = 50)
@Preview("default", "round")
@Preview("dark theme", "round", uiMode = UI_MODE_NIGHT_YES)
@Preview("large font", "round", fontScale = 2f)
@Composable
private fun ButtonPreview() {
JetsnackTheme {
JetsnackButton(onClick = {}) {
Text(text = "Demo")
}
}
}
@Preview("default", "rectangle")
@Preview("dark theme", "rectangle", uiMode = UI_MODE_NIGHT_YES)
@Preview("large font", "rectangle", fontScale = 2f)
@Composable
private fun RectangleButtonPreview() {
JetsnackTheme {
JetsnackButton(onClick = {}, shape = RectangleShape) {
Text(text = "Demo")
}
}
}