| /* |
| * 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 |
| * |
| * 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.samples |
| |
| import android.view.View |
| import android.view.ViewGroup |
| import android.widget.TextView |
| import androidx.annotation.Sampled |
| import androidx.compose.foundation.background |
| import androidx.compose.foundation.clickable |
| import androidx.compose.foundation.layout.Box |
| import androidx.compose.foundation.layout.size |
| 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.Modifier |
| import androidx.compose.ui.draw.drawBehind |
| import androidx.compose.ui.graphics.Color |
| import androidx.compose.ui.graphics.drawscope.drawIntoCanvas |
| import androidx.compose.ui.graphics.nativeCanvas |
| import androidx.compose.ui.platform.LocalContext |
| import androidx.compose.ui.unit.dp |
| import androidx.compose.ui.viewinterop.AndroidView |
| import kotlin.math.roundToInt |
| |
| @Suppress("SetTextI18n") |
| @Sampled |
| @Composable |
| fun AndroidViewSample() { |
| // Compose a TextView. |
| AndroidView({ context -> TextView(context).apply { text = "This is a TextView" } }) |
| // Compose a View and update its size based on state. Note the modifiers. |
| var size by remember { mutableStateOf(20) } |
| AndroidView(::View, Modifier.clickable { size += 20 }.background(Color.Blue)) { view -> |
| view.layoutParams = ViewGroup.LayoutParams(size, size) |
| } |
| } |
| |
| @Sampled |
| @Composable |
| fun AndroidDrawableInDrawScopeSample() { |
| val drawable = LocalContext.current.getDrawable(R.drawable.sample_drawable) |
| Box( |
| modifier = Modifier.size(100.dp) |
| .drawBehind { |
| drawIntoCanvas { canvas -> |
| drawable?.let { |
| it.setBounds(0, 0, size.width.roundToInt(), size.height.roundToInt()) |
| it.draw(canvas.nativeCanvas) |
| } |
| } |
| } |
| ) |
| } |