标签: android-jetpack

使用 LocalContext.current 会导致应用程序崩溃，告诉我：

java.lang.IllegalStateException: No default context
        at androidx.glance.CompositionLocalsKt$LocalContext$1.invoke(CompositionLocals.kt:35)
        at androidx.glance.CompositionLocalsKt$LocalContext$1.invoke(CompositionLocals.kt:35)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at androidx.compose.runtime.LazyValueHolder.getCurrent(ValueHolders.kt:29)
        at androidx.compose.runtime.LazyValueHolder.getValue(ValueHolders.kt:31)
        at androidx.compose.runtime.ComposerImpl.resolveCompositionLocal(Composer.kt:1776)
        at androidx.compose.runtime.ComposerImpl.consume(Composer.kt:1746)
        at com.bqubique.quran_randomayah.view.VerseCardKt.ButtonTile(VerseCard.kt:282)
        at com.bqubique.quran_randomayah.view.ComposableSingletons$VerseCardKt$lambda-2$1.invoke(VerseCard.kt:79)
        at com.bqubique.quran_randomayah.view.ComposableSingletons$VerseCardKt$lambda-2$1.invoke(VerseCard.kt:79)
        at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:116)
        at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
        at
...

使用的版本：

compose_version = '1.0.5'

wear_compose_version = '1.0.0-alpha15'

我尝试过在任何类型的 @Composable 中调用 LocalContext.current，甚至在 setContent{...} 内的 MainActivity.kt 中调用 LocalContext.current

目前，我正在尝试找到一种简单的方法来实现步骤进度条，如下所示：

有人有这方面的经验吗？也许有一个好的图书馆吗？

我正在开发一个 Android 应用程序，当前绑定到我的位置服务，我在活动内部时从中接收位置更新，并且我想在用户完成身份验证过程后从可组合项内部执行此操作

我在我的 jetpack compose 应用程序中使用 koin v3.2.0。我的viewModelOf. 我也从示例项目中正确导入。

dependencies {\n\n    implementation \'androidx.core:core-ktx:1.8.0\'\n\n    implementation "androidx.compose.material:material:$compose_version"\n    implementation \'androidx.compose.material3:material3:1.0.0-alpha14\'\n\n    implementation "androidx.compose.ui:ui:$compose_version"\n    implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"\n    implementation \'androidx.activity:activity-compose:1.5.0\'\n    debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"\n    debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_version"\n    implementation "androidx.compose.runtime:runtime-livedata:$compose_version"\n    implementation "androidx.navigation:navigation-compose:$nav_version"\n\n    testImplementation \'junit:junit:4.13.2\'\n\n    androidTestImplementation \'androidx.test.ext:junit:1.1.3\'\n\n    androidTestImplementation \'androidx.test.espresso:espresso-core:3.4.0\'\n\n    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"\n\n    implementation "androidx.lifecycle:lifecycle-viewmodel-compose:$lifecycle_version"\n    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"\n    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"\n\n    implementation \'androidx.work:work-runtime:2.7.1\'\n\n    implementation "com.google.accompanist:accompanist-systemuicontroller:0.17.0"\n\n    implementation "com.airbnb.android:lottie-compose:$lottieVersion"\n\n    implementation "io.insert-koin:koin-android:$koin_version"\n    implementation "io.insert-koin:koin-androidx-compose:$koin_version"\n\n}\n

应用程序模块.kt

package com.vivek.sportsresult.di\n\nimport org.koin.androidx.viewmodel.dsl.viewModelOf\nimport org.koin.dsl.module\n\nval appModule = module {\n    viewModelOf(::MainActivityViewModel)\n}\n

MainActivityViewModel.kt

package com.vivek.sportsresult.viewmodel\n\nimport androidx.lifecycle.ViewModel\n\nclass MainActivityViewModel : ViewModel() …

我有一个方法“活动”，它托管一个“屏幕”，并且由于状态提升很酷，所以我这样做了，但遇到了问题。

虽然使用Modifier.clickable代码可以完美运行（增加值） ，但使用detectorTapGestures::onTap 时，相同的代码无法正常运行， 如通过Log.d("ExampleScreen", "onClick Multi Count is $multiCount")观察到的那样

@Composable
fun ExampleActivity() {
    var multiCount by remember {
        mutableStateOf(0)
    }

    Log.d("ExampleActivity", "Multi Count is $multiCount") //this works either way

    ExampleScreen(
        multiCount = multiCount,
        incrementMultiCount = {
            multiCount = ++multiCount
        }
    )
}

  @Composable
    fun ExampleScreen(
        modifier: Modifier = Modifier,
        multiCount: Int,
        incrementMultiCount: () -> Unit
    ) {
            Log.d("ExampleScreen", "Example Multi Count is $multiCount") //this works either way
            Column(
                modifier = modifier
                    .fillMaxSize()
                    .padding()
            ) …