Android navigation Fragment 共享元素动画
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依赖 项目级别build.gradle
buildscript
dependencies
classpath("androidx.navigation:navigation-safe-args-gradle-plugin:2.4.2")
app级别
implementation 'androidx.navigation:navigation-fragment-ktx:2.5.1'
implementation 'androidx.navigation:navigation-ui:2.5.1'
顶部添加插件saferargs
plugins
id 'com.android.application'
id 'org.jetbrains.kotlin.android'
id 'androidx.navigation.safeargs.kotlin'
mainActivity里面没有代码 布局如此
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.fragment.app.FragmentContainerView
android:id="@+id/navHostFragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="@navigation/nav_graph" />
</FrameLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
mav_graph.xml
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/nav_graph"
app:startDestination="@id/mainFragment">
<fragment
android:id="@+id/mainFragment"
android:name="com.example.share_element_anim.MainFragment"
android:label="MainFragment" >
<action
android:id="@+id/action_mainFragment_to_imageFragment"
app:destination="@id/imageFragment" />
</fragment>
<fragment
android:id="@+id/imageFragment"
android:name="com.example.share_element_anim.ImageFragment"
android:label="ImageFragment" />
</navigation>
MainFragment
package com.example.share_element_anim
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.navigation.fragment.FragmentNavigatorExtras
import androidx.navigation.fragment.findNavController
import com.example.share_element_anim.databinding.FragmentMainBinding
class MainFragment : Fragment(R.layout.fragment_main)
private lateinit var binding: FragmentMainBinding
override fun onViewCreated(view: View, savedInstanceState: Bundle?)
super.onViewCreated(view, savedInstanceState)
binding = FragmentMainBinding.bind(view)
binding.ivImage.setOnClickListener
val extras = FragmentNavigatorExtras(binding.ivImage to "image_big")
findNavController().navigate(
R.id.action_mainFragment_to_imageFragment,
null,
null,
extras
)
override fun onDestroy()
super.onDestroy()
布局
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/ivImage"
android:layout_width="120dp"
android:layout_height="120dp"
android:transitionName="image_small"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_launcher_background" />
</androidx.constraintlayout.widget.ConstraintLayout>
ImageFragment
package com.example.share_element_anim
import android.os.Bundle
import android.transition.TransitionInflater
import androidx.fragment.app.Fragment
class ImageFragment : Fragment(R.layout.fragment_image)
override fun onCreate(savedInstanceState: Bundle?)
super.onCreate(savedInstanceState)
val animation = TransitionInflater.from(requireContext()).inflateTransition(
android.R.transition.move
)
sharedElementEnterTransition = animation
sharedElementReturnTransition = animation
布局
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/ivImage"
android:layout_width="0dp"
android:layout_height="500dp"
android:scaleType="centerCrop"
android:transitionName="image_big"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_launcher_background" />
</androidx.constraintlayout.widget.ConstraintLayout>
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Android navigation Fragment 共享元素动画