我尝试运行此代码并在预览模式下查看它
package com.example.basiccodelab
import androidx.compose.ui.graphics.Color.Companion.Yellow
import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.appcompat.app.AppCompatActivity
import androidx.compose.material.MaterialTheme
import androidx.compose.material.Surface
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.Color.Companion.Yellow
import androidx.compose.ui.tooling.preview.Preview
import com.example.basiccodelab.ui.theme.BasicCodelabTheme
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
BasicCodelabTheme {
// A surface container using the 'background' color from the theme
Surface(color = MaterialTheme.colors.background) {
Greeting("Android")
}
}
}
}
}
@Composable
fun Greeting(name: String) {
Surface(color = Color.Yellow) {
Text(text = "Hello $name!")
}
}
@Preview(showBackground = true)
@Composable
fun DefaultPreview() {
BasicCodelabTheme {
Greeting("Android")
}
}
但是出现了这个问题
java.lang.NoSuchMethodError: 'void androidx.compose.ui.graphics.drawscope.DrawScope$DefaultImpls.drawRect-w2WG-Gw$default(androidx.compose.ui.graphics.drawscope.DrawScope, long, long, long, float, androidx.compose.ui.graphics.drawscope.DrawStyle, androidx.compose.ui.graphics.ColorFilter, androidx.compose.ui.graphics.BlendMode, int, java.lang.Object)'
at androidx.compose.foundation.Background.drawRect(Background.kt:111)
at androidx.compose.foundation.Background.draw(Background.kt:103)
at androidx.compose.ui.node.ModifiedDrawNode.performDraw(ModifiedDrawNode.kt:102)
at androidx.compose.ui.node.LayoutNodeWrapper$invoke$1.invoke(LayoutNodeWrapper.kt:260)
at androidx.compose.ui.node.LayoutNodeWrapper$invoke$1.invoke(LayoutNodeWrapper.kt:259)
at androidx.compose.runtime.snapshots.SnapshotStateObserver.observeReads(SnapshotStateObserver.kt:121)
at androidx.compose.ui.node.OwnerSnapshotObserver.observeReads$ui_release(OwnerSnapshotObserver.kt:75)
at androidx.compose.ui.node.LayoutNodeWrapper.invoke(LayoutNodeWrapper.kt:259)
at androidx.compose.ui.node.LayoutNodeWrapper.invoke(LayoutNodeWrapper.kt:53)
at androidx.compose.ui.platform.RenderNodeLayer.drawLayer(RenderNodeLayer.android.kt:220)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:244)
at androidx.compose.ui.node.ModifiedLayoutNode.performDraw(ModifiedLayoutNode.kt:82)
at androidx.compose.ui.node.LayoutNodeWrapper$invoke$1.invoke(LayoutNodeWrapper.kt:260)
at androidx.compose.ui.node.LayoutNodeWrapper$invoke$1.invoke(LayoutNodeWrapper.kt:259)
at androidx.compose.runtime.snapshots.Snapshot$Companion.observe(Snapshot.kt:1788)
at androidx.compose.runtime.snapshots.SnapshotStateObserver.observeReads(SnapshotStateObserver.kt:116)
at androidx.compose.ui.node.OwnerSnapshotObserver.observeReads$ui_release(OwnerSnapshotObserver.kt:75)
at androidx.compose.ui.node.LayoutNodeWrapper.invoke(LayoutNodeWrapper.kt:259)
at androidx.compose.ui.node.LayoutNodeWrapper.invoke(LayoutNodeWrapper.kt:53)
at androidx.compose.ui.platform.RenderNodeLayer.drawLayer(RenderNodeLayer.android.kt:220)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:244)
at androidx.compose.ui.node.LayoutNode.draw$ui_release(LayoutNode.kt:800)
at androidx.compose.ui.node.InnerPlaceable.performDraw(InnerPlaceable.kt:116)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:249)
at androidx.compose.ui.node.DelegatingLayoutNodeWrapper.performDraw(DelegatingLayoutNodeWrapper.kt:67)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:249)
at androidx.compose.ui.node.DelegatingLayoutNodeWrapper.performDraw(DelegatingLayoutNodeWrapper.kt:67)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:249)
at androidx.compose.ui.node.DelegatingLayoutNodeWrapper.performDraw(DelegatingLayoutNodeWrapper.kt:67)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:249)
at androidx.compose.ui.node.DelegatingLayoutNodeWrapper.performDraw(DelegatingLayoutNodeWrapper.kt:67)
at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:249)
at androidx.compose.ui.node.LayoutNode.draw$ui_release(LayoutNode.kt:800)
at androidx.compose.ui.platform.AndroidComposeView.dispatchDraw(AndroidComposeView.android.kt:656)
at android.view.View.draw_Original(View.java:22353)
at android.view.View_Delegate.draw(View_Delegate.java:56)
at android.view.View.draw(View.java:22323)
at android.view.View.draw_Original(View.java:22223)
at android.view.View_Delegate.draw(View_Delegate.java:68)
at android.view.View.draw(View.java:21995)
at android.view.ViewGroup.drawChild(ViewGroup.java:4516)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4277)
at android.view.View.draw_Original(View.java:22221)
at android.view.View_Delegate.draw(View_Delegate.java:68)
at android.view.View.draw(View.java:21995)
at android.view.ViewGroup.drawChild(ViewGroup.java:4516)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4277)
at androidx.compose.ui.tooling.preview.ComposeViewAdapter.dispatchDraw(ComposeViewAdapter.kt:444)
at android.view.View.draw_Original(View.java:22353)
at android.view.View_Delegate.draw(View_Delegate.java:56)
at android.view.View.draw(View.java:22323)
at android.view.View.draw_Original(View.java:22223)
at android.view.View_Delegate.draw(View_Delegate.java:68)
at android.view.View.draw(View.java:21995)
at android.view.ViewGroup.drawChild(ViewGroup.java:4516)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4277)
at android.view.View.draw_Original(View.java:22221)
at android.view.View_Delegate.draw(View_Delegate.java:68)
at android.view.View.draw(View.java:21995)
at android.view.ViewGroup.drawChild(ViewGroup.java:4516)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4277)
at android.view.View.draw_Original(View.java:22221)
at android.view.View_Delegate.draw(View_Delegate.java:68)
at android.view.View.draw(View.java:21995)
at android.view.ViewGroup.drawChild(ViewGroup.java:4516)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4277)
at android.view.View.draw_Original(View.java:22353)
at android.view.View_Delegate.draw(View_Delegate.java:56)
at android.view.View.draw(View.java:22323)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.renderAndBuildResult(RenderSessionImpl.java:553)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.render(RenderSessionImpl.java:449)
at com.android.layoutlib.bridge.BridgeRenderSession.render(BridgeRenderSession.java:120)
at com.android.ide.common.rendering.api.RenderSession.render(RenderSession.java:137)
at com.android.ide.common.rendering.api.RenderSession.render(RenderSession.java:119)
at com.android.tools.idea.rendering.RenderTask.lambda$renderInner$13(RenderTask.java:1019)
at com.android.tools.idea.rendering.RenderExecutor$runAsyncActionWithTimeout$2.run(RenderExecutor.kt:187)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
答案 0 :(得分:3)
在您的 build.gradle 中,尝试将 Kotlin 更新到 1.5.10 并将 Compose 更新到 beta08。
像这样:
buildscript {
ext {
compose_version = '1.0.0-beta08'
}
repositories {
google()
mavenCentral()
}
dependencies {
classpath "com.android.tools.build:gradle:7.1.0-alpha01"
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.10"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
答案 1 :(得分:0)
确保“androidx.activity:activity-compose:...”与您的 compose_version 版本相同