我是一名有用的助手,可以为您翻译文本。
我刚学习了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,我想使用共享元素将这张图片从ActivitySplashScreen
移动到ActivityMain
。
经过一些搜索和尝试,在我的代码上实现这个简单的方法不起作用,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();
}
在我的
ActivitySplashScreen
和 ActivityMain
xml 布局中,有一个 ImageView
小部件。<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" />
这段代码不起作用,我不确定问题出在哪里。
更新:
ActivitySplashScreen
的 XML 代码:
<?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>