| /* |
| * Copyright 2019 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 |
| * |
| * http://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 androidx.compose.ui.res |
| |
| import android.content.res.Resources |
| import android.util.TypedValue |
| import androidx.annotation.DrawableRes |
| import androidx.compose.runtime.Composable |
| import androidx.compose.runtime.remember |
| import androidx.compose.ui.platform.LocalContext |
| import android.graphics.drawable.BitmapDrawable |
| import androidx.compose.ui.graphics.ImageBitmap |
| import androidx.compose.ui.graphics.asImageBitmap |
| |
| /** |
| * Load an ImageBitmap from an image resource. |
| * |
| * This function is intended to be used for when low-level ImageBitmap-specific |
| * functionality is required. For simply displaying onscreen, the vector/bitmap-agnostic |
| * [painterResource] is recommended instead. |
| * |
| * @return Loaded image file represented as an [ImageBitmap] |
| */ |
| fun ImageBitmap.Companion.imageResource(res: Resources, @DrawableRes id: Int): ImageBitmap { |
| return (res.getDrawable(id, null) as BitmapDrawable).bitmap.asImageBitmap() |
| } |
| |
| /** |
| * Load an ImageBitmap from an image resource. |
| * |
| * This function is intended to be used for when low-level ImageBitmap-specific |
| * functionality is required. For simply displaying onscreen, the vector/bitmap-agnostic |
| * [painterResource] is recommended instead. |
| * |
| * @param id the resource identifier |
| * @return the decoded image data associated with the resource |
| */ |
| @Composable |
| fun ImageBitmap.Companion.imageResource(@DrawableRes id: Int): ImageBitmap { |
| val context = LocalContext.current |
| val value = remember { TypedValue() } |
| context.resources.getValue(id, value, true) |
| val key = value.string!!.toString() // image resource must have resource path. |
| return remember(key) { imageResource(context.resources, id) } |
| } |