mirror of
https://github.com/LawnchairLauncher/lawnchair.git
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98795242eb
- Add a new app chip in composable. - Implement the app chip expansion animations and styles. Bug: 400436593 Bug: 366172565 Fix: 366387927 Flag: EXEMPT build flag: release_enable_compose_in_launcher. Test: AppChipTest Test: AppChipScreenshotTest Change-Id: I05ca14354ab7702026343c4e636538d507336f6a
59 lines
2.3 KiB
Kotlin
59 lines
2.3 KiB
Kotlin
/*
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* Copyright (C) 2025 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.util
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import android.animation.TimeInterpolator
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import android.graphics.drawable.Drawable
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import androidx.compose.animation.core.Easing
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.remember
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import androidx.compose.ui.graphics.asImageBitmap
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import androidx.compose.ui.graphics.painter.BitmapPainter
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import androidx.compose.ui.graphics.painter.Painter
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.core.graphics.drawable.toBitmap
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/**
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* Converts a [TimeInterpolator] to a compose [Easing].
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*
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* This function allows you to use Android's [TimeInterpolator] instances, such as those defined in
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* `android.R.interpolator`, directly with Compose animations that expect an [Easing].
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*/
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fun TimeInterpolator.toComposeEasing(): Easing = Easing { fraction -> getInterpolation(fraction) }
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/**
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* A composable function that takes a [Drawable] and converts it into a [Painter] which can be used
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* to draw the drawable on a Compose canvas.
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*
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* This function uses [remember] to cache the conversion of the [Drawable] to an [ImageBitmap]. This
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* means that if the same [Drawable] instance is provided across recompositions, the conversion will
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* only happen once, improving performance.
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*/
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@Composable
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fun painterResource(drawable: Drawable): Painter {
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val imageBitmap = remember(drawable) { drawable.toBitmap().asImageBitmap() }
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return BitmapPainter(imageBitmap)
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}
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/**
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* A multi-preview annotation that displays the same Composable with different font scales.
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*/
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@Preview(name = "normal font", group = "font scales", fontScale = 1f)
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@Preview(name = "large font", group = "font scales", fontScale = 2f)
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annotation class FontScalePreviews
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