找到所需的转换: MaterialContainerTransform？

Question

在我的活动中，我尝试使用MaterialContainerTransform，但它显示出一个错误： 必需的转换已找到：MaterialContainerTransform

override fun onCreate(savedInstanceState: Bundle?) {
window.requestFeature(Window.FEATURE_ACTIVITY_TRANSITIONS)
    setEnterSharedElementCallback(MaterialContainerTransformSharedElementCallback())
    //this is giving error
    window.sharedElementEnterTransition = MaterialContainerTransform().apply {
        addTarget(android.R.id.content)
        duration = 300L
    }
    window.sharedElementReturnTransition = MaterialContainerTransform().apply {
        addTarget(android.R.id.content)
        duration = 250L
    }

我的依赖项

dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.3.1'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta3'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
testImplementation 'junit:junit:4.13'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
//material
implementation 'com.google.android.material:material:1.3.0-alpha02'

def coroutines_version = "1.3.8"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
implementation 'androidx.navigation:navigation-fragment-ktx:2.3.0'
implementation 'androidx.navigation:navigation-ui-ktx:2.3.0'
implementation 'androidx.viewpager2:viewpager2:1.0.0'

}

- Rahul Pawar

---

这是我尝试进行操作的参考关键字，它来自于官方的Material.io网站Material Transitions。 - Rahul Pawar

Answer 1

有两种类型的MaterialContainerTransform：使用AndroidX Transition并包含适用于所有API级别的错误修复的com.google.android.material.transition.MaterialContainerTransform 和基于框架Transition类构建的com.google.android.material.transition.platform.MaterialContainerTransform类。

仅框架Transition版本可用于窗口转换，因此您应该确保导入正确版本的MaterialContainerTransform：

import com.google.android.material.transition.platform.MaterialContainerTransform

- ianhanniballake