java - 设置布局背景时，共享元素转换将无法正常工作

Question

我尝试遵循一些有关如何设置共享元素转换的教程。尽管当我尝试设置背景时，共享元素会以错误的方式出现故障，然后按应有的方式移动。

这是我的问题的视频链接:https://drive.google.com/file/d/14lTFGIpqnMwM2MEbLxwBe_gkI0GuyuMc/view?usp=sharing

未设置背景时:https://drive.google.com/open?id=15Hpkj7y8nLLTXa5RF5FV00jlTTWMofjF

当我没有在 xml 布局中设置背景时，动画可以正常工作。有谁知道为什么会发生这种情况？

Activity 1 XML

<?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"
    android:background="@color/colorPrimary"
    android:orientation="vertical"
    tools:context=".MainActivity">

        <TextView
            android:id="@+id/text1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/nexa"
            android:gravity="center"
            android:padding="10dp"
            android:text="Test"
            android:textColor="@color/colorAccent"
            android:textSize="30sp"
            android:transitionName="transition"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

Activity 2 XML

<?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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimary">

        <TextView
            android:id="@+id/text2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:padding="10dp"
            android:text="Test"
            android:fontFamily="@font/nexa"
            android:textColor="@color/colorAccent"
            android:textSize="30sp"
            android:transitionName="transition"
            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:layout_constraintVertical_bias="0.05" />


</androidx.constraintlayout.widget.ConstraintLayout>

Activity 1 Java

package com.stonks.sharedanimtest;

import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.core.app.ActivityCompat;

import android.app.ActivityOptions;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

        getWindow().setEnterTransition(null);

        textView = (TextView) findViewById(R.id.text1);

        textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {


                Intent intent = new Intent(MainActivity.this, MainActivity2.class);

                ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(MainActivity.this, textView, "transition");

                startActivity(intent, options.toBundle());

            }
        });


    }
}

Activity 2 Java

package com.stonks.sharedanimtest;

import android.app.Activity;
import android.app.ActivityOptions;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.WindowManager;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity2 extends AppCompatActivity {

    private TextView textView;

    @Override
    public void onBackPressed() {
        textView = (TextView) findViewById(R.id.text2);

                Intent intent = new Intent(MainActivity2.this, MainActivity.class);

                ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(MainActivity2.this, textView, "transition");

                startActivity(intent, options.toBundle());

    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

        getWindow().setEnterTransition(null);
    }
}

颜色 XML

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#161618</color>
    <color name="colorPrimaryLight">#202024</color>
    <color name="colorAccent">#ffffff</color>
</resources>

list XML

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.stonks.sharedanimtest">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity2"
            android:screenOrientation="portrait" />
        <activity android:name=".MainActivity"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Answer 1

您可以将共享 View (text1 或 text2)包装在 FrameLayout 中 - 但 TextView 仍然应该是共享元素。应该可以解决问题。