因此，我面临的问题是我在两个活动和两个共享视图之间执行的动画看起来不太好。
问题在于它的“故障”，当从 Activity2 返回到 Activity1 时，共享的 TextView 在动画结束时会闪烁，在不到一秒的时间内显示 Activity2 中的“较大文本”，因此它“闪烁” ”。
活动 1（包含三个项目的 RecyclerView）：
活动2（详情）：
我在制作动画的同时拍摄了屏幕。当从 Activity2 返回到 Activit2 时，您可以看到文本在最后闪烁。该视频（36MB，抱歉尺寸过大）显示了这一点：
https://drive.google.com/file/d/0B3wIZ9CS9Kj_a0MyVFlzX1YtY0E/view?usp=sharing https://drive.google.com/file/d/0B3wIZ9CS9Kj_a0MyVFlzX1YtY0E/view?usp=sharing
问题是：我做错了什么？为什么会这样眨眼？我看过其他动物的视频，它们都超级流畅、漂亮。
我测试了不同类型的转换（changeBounds、爆炸等），但总是会发生一些奇怪的事情。任何提示、想法将不胜感激=）
MY CODE
主要活动（活动1）：
package se.snapcode.lollipoptest;
import android.app.Activity;
import android.app.ActivityOptions;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.GestureDetectorCompat;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.util.Pair;
import android.view.GestureDetector;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v7.widget.RecyclerView;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
private RecyclerView mRecyclerView;
private MyAdapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
GestureDetectorCompat gestureDetector;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerView.setHasFixedSize(true);
// use a linear layout manager
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
// specify an adapter (see also next example)
String[] strings = new String[3];
strings[0] = "A1";
strings[1] = "A2";
strings[2] = "A3";
mAdapter = new MyAdapter(strings);
mRecyclerView.setAdapter(mAdapter);
mAdapter.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
final TextView headerView = (TextView)view.findViewById(R.id.textView1);
final TextView textView = (TextView)view.findViewById(R.id.textView2);
Intent intent = new Intent(MainActivity.this, DetailsActivity.class);
intent.putExtra("header", headerView.getText().toString());
intent.putExtra("text", textView.getText().toString());
ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(MainActivity.this, Pair.create((View)headerView, "header"),
Pair.create((View)textView, "text"));
startActivity(intent, options.toBundle());
}
});
RecyclerView.ItemDecoration itemDecoration =
new DividerItemDecoration(this, DividerItemDecoration.VERTICAL_LIST);
mRecyclerView.addItemDecoration(itemDecoration);
// this is the default; this call is actually only necessary with custom ItemAnimators
mRecyclerView.setItemAnimator(new DefaultItemAnimator());
}
}
详细活动（活动 2）：
package se.snapcode.lollipoptest;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
public class DetailsActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
String header = getIntent().getStringExtra("header");
String text = getIntent().getStringExtra("text");
TextView tv1 = (TextView)findViewById(R.id.tv_details_header);
tv1.setText(header);
TextView tv2 = (TextView)findViewById(R.id.tv_details_text);
tv2.setText(text);
}
}
布局，首先是 RecyclerView 列表中的 my_text_view：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true"
android:background="?android:attr/selectableItemBackground"
android:colorControlHighlight="@android:color/holo_blue_light"
android:padding="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="MY HEADER IS HERE"
android:transitionName="header"
android:id="@+id/textView1" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="This is some text that is of relevance"
android:transitionName="text"
android:id="@+id/textView2" />
</LinearLayout>
还有activity_details.xml：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="se.snapcode.lollipoptest.DetailsActivity">
<TextView android:id="@+id/tv_details_header" android:text="A1" android:layout_width="wrap_content"
android:transitionName="header"
android:textSize="48dp"
android:layout_height="wrap_content" />
<TextView android:id="@+id/tv_details_text" android:text="Some text of lesser importance" android:layout_width="wrap_content"
android:textSize="24dp"
android:transitionName="text"
android:layout_height="wrap_content" />
</LinearLayout>
以及转换 xml（在 /res/transition 中）：
<?xml version="1.0" encoding="utf-8"?>
<transitionSet xmlns:android="http://schemas.android.com/apk/res/android">
<changeBounds/>
<explode />
</transitionSet>
和 styles.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AppTheme" parent="android:Theme.Material.Light">
<!-- enable window content transitions -->
<item name="android:windowContentTransitions">true</item>
<!-- specify enter and exit transitions -->
<item name="android:windowEnterTransition">@android:transition/slide_left</item>
<item name="android:windowExitTransition">@android:transition/slide_right</item>
<!-- specify shared element transitions -->
<item name="android:windowSharedElementEnterTransition">
@transition/change_image_transform</item>
<item name="android:windowSharedElementExitTransition">
@transition/change_image_transform</item>
</style>
</resources>
