如何在 2 activity 之间开始共享元素转换？

Question

我刚刚了解 Android 中的共享元素，我有一张图片，其中一张在 ActivitySplashScreen 中，另一张在 Toolbar 中，我想使用共享元素来将这张图片从 ActivitySplashScreen 移动到 ActivityMain

经过一些搜索并尝试实现使此功能在我的代码上不起作用的简单方法，例如：

style.xml:

<style name="AppTheme" parent="BaseTheme">
    <item name="android:windowContentTransitions">true</item>
</style>

<style name="BaseTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    ...
</style>

ActivitySplashScreen.java:

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

    ButterKnife.bind(this);

    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            Intent intent = new Intent(ActivitySplashScreen.this, MainActivity.class);
            ActivityOptionsCompat options = ActivityOptionsCompat.
                    makeSceneTransitionAnimation(ActivitySplashScreen.this,
                            app_logo,
                            ViewCompat.getTransitionName(app_logo));
            startActivity(intent, options.toBundle());

            finish();
        }
    }, 3000);
}

ActivityMain.java:

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

我的

和 ImageView 小部件 ActivitySplashScreen 和 ActivityMain xml 布局：

<ImageView
    android:id="@+id/instagram_add_story"
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="16dp"
    android:layout_marginBottom="8dp"
    android:src="@drawable/img_wizard_1"
    android:transitionName="app_logo"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    tools:ignore="VectorDrawableCompat" />

这段代码不能正常工作，我不确定那到底是什么问题

已更新

ActivitySplashScreen xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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">

    <LinearLayout
        android:id="@+id/alachiq_header_animation"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:background="@drawable/instagram_animation_gradient_list"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingTop="40dp">

        <ImageView
            android:id="@+id/app_logo"
            android:layout_width="150dp"
            android:layout_height="150dp"
            android:transitionName="app_logo"
            android:tint="@android:color/white"
            app:srcCompat="@drawable/img_wizard_1" />

        <TextView
            android:id="@+id/title"
            style="@style/TextAppearance.AppCompat.Title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="8dp"
            android:fontFamily="@font/iran_sans_bold"
            android:gravity="center"
            android:text="@string/app_name"
            android:textColor="@color/mdtp_white" />

        <TextView
            style="@style/TextAppearance.AppCompat.Caption"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="@font/iran_sans_light"
            android:gravity="center"

            android:textColor="@color/mdtp_white" />
    </LinearLayout>
</android.support.constraint.ConstraintLayout>

MainActivity xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:slidingLayer="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/grey_5"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:elevation="5dp"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@android:color/white"
            app:contentInsetStartWithNavigation="0dp"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:theme="@style/Toolbar.Light">

            <android.support.constraint.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <TextView
                    android:id="@+id/activityTitle"
                    style="@style/Base.TextAppearance.AppCompat.Caption"
                    android:layout_width="90dp"
                    android:layout_height="30dp"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="8dp"
                    android:layout_marginBottom="8dp"
                    android:fontFamily="@font/iran_sans_bold"
                    android:gravity="center|right"
                    android:text="@string/app_name"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toStartOf="@+id/application_logo"
                    app:layout_constraintTop_toTopOf="parent" />

                <ImageView
                    android:id="@+id/application_logo"
                    android:layout_width="40dp"
                    android:layout_height="40dp"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="8dp"
                    android:scaleType="centerCrop"
                    android:layout_marginBottom="8dp"
                    android:src="@drawable/ic_app_logo"
                    android:transitionName="app_logo"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toStartOf="@+id/drawerMenu"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.0"
                    tools:ignore="VectorDrawableCompat" />

            </android.support.constraint.ConstraintLayout>
        </android.support.v7.widget.Toolbar>

    </android.support.design.widget.AppBarLayout>

</android.support.design.widget.CoordinatorLayout>

Answer 1

我可以这样使用这里是我根据你的场景的解决方案。

风格：

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

Splash.XML

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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">

    <LinearLayout
        android:id="@+id/alachiq_header_animation"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:background="@drawable/ic_launcher_background"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingTop="40dp">

        <ImageView
            android:id="@+id/app_logo"
            android:layout_width="150dp"
            android:layout_height="150dp"
            android:tint="@android:color/black"
            app:srcCompat="@android:drawable/ic_dialog_email" />

        <TextView
            android:id="@+id/title"
            style="@style/TextAppearance.AppCompat.Title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="8dp"
            android:fontFamily="sans-serif"
            android:gravity="center"
            android:text="@string/app_name"
            android:textColor="@android:color/background_dark" />

        <TextView
            style="@style/TextAppearance.AppCompat.Caption"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:fontFamily="sans-serif"
            android:textColor="@android:color/background_dark" />
    </LinearLayout>
</android.support.constraint.ConstraintLayout>

Splash.Java

public class SplashActivity extends AppCompatActivity {
    @BindView(R.id.app_logo)
    ImageView app_logo;
    Activity mActivity;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash);
        ButterKnife.bind(this);
        mActivity = this;
        ViewCompat.setTransitionName(app_logo, "app_logo");
        new Handler().postDelayed(new Runnable() {
            @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
            @Override
            public void run() {
                Intent intent = new Intent(SplashActivity.this, MainActivity.class);
                intent.putExtra("transition_name", ViewCompat.getTransitionName(app_logo));
                ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(mActivity,app_logo,ViewCompat.getTransitionName(app_logo));
                startActivity(intent, options.toBundle());

                finish();
            }
        }, 3000);
    }
}

MainActivity.XML

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:slidingLayer="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="@android:color/darker_gray"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:elevation="5dp">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@android:color/white"
            app:contentInsetStartWithNavigation="0dp"
            >

            <android.support.constraint.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <TextView
                    android:id="@+id/activityTitle"
                    android:layout_width="90dp"
                    android:layout_height="30dp"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="8dp"
                    android:layout_marginBottom="8dp"
                    android:gravity="center|right"
                    android:text="@string/app_name"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toStartOf="@+id/application_logo"
                    app:layout_constraintTop_toTopOf="parent"
                    android:layout_marginRight="8dp" />

                <ImageView
                    android:id="@+id/application_logo"
                    android:layout_width="40dp"
                    android:layout_height="40dp"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="8dp"
                    android:scaleType="centerCrop"
                    android:layout_marginBottom="8dp"
                    android:tint="@android:color/black"
                    app:srcCompat="@android:drawable/ic_dialog_email"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.0"
                    android:layout_marginRight="8dp" />

            </android.support.constraint.ConstraintLayout>
        </android.support.v7.widget.Toolbar>

    </android.support.design.widget.AppBarLayout>

</android.support.design.widget.CoordinatorLayout>

MainActivity.Java

public class MainActivity extends AppCompatActivity {
    @BindView(R.id.toolbar)
    Toolbar mToolbar;
    Activity mActivity;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
        mActivity = this;
        setSupportActionBar(mToolbar);
        ActivityCompat.postponeEnterTransition(this);
        ImageView application_logo = (ImageView) mToolbar.findViewById(R.id.application_logo);
        if (getIntent() != null) {
            Bundle extras = getIntent().getExtras();

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                String imageTransitionName = extras.getString("transition_name");
                application_logo.setTransitionName(imageTransitionName);
                ActivityCompat.startPostponedEnterTransition(mActivity);
            }
        }

    }

}

根据您的情况，这是 SharedElementTransition 的示例代码。每当你使用某种样式时，总是写在样式文件中然后使用它。

Note: import android.support.v7.widget.Toolbar; for ToolBar in Java file. This is working fine.

如何在 2 activity 之间开始共享元素转换？

How to start shared element transition between 2 activity?

android

shared-element-transition