Ich denke an zwei Möglichkeiten, diesen Effekt zu erreichen:
Ein Weg ist mit Geteilt Element Aktivität Transition. Es erfordert zwei Aktivitäten: eine mit Recycler-Ansicht, die zweite mit Vollbild-Ansicht. Die Animation wird automatisch zwischen dem Wechsel zwischen Aktivität Eins und Aktivität Zwei angewendet. Diese Lösung wird funktionieren und erfordert nicht viel Code, aber Sie werden auf ein Problem stoßen, zwei Aktivitäten synchron zu halten (z. B. die genaue Position von RecyclerView). Anpassung ist nicht unmöglich, könnte aber schwierig sein, da Sie sich stark auf das Framework verlassen.
Die zweite Möglichkeit besteht darin, innerhalb derselben Aktivität zu bleiben und Objektanimatoren zu verwenden, um zwischen dem Recycler-Ansichtselement und der Vollbildansicht zu wechseln. Der Trick besteht nicht darin, die Ansicht zu animieren, die sich in RecyclerView befindet, sondern Ihre Vollbildansicht von den Grenzen der Ansicht aus zu animieren, die sich in der RecyclerView befindet. Auf diese Weise werden Sie nicht durch die Grenzen der Eltern eingeschränkt. Ich habe die zweite Lösung implementiert, da sie sehr anpassbar ist und Ihnen die volle Kontrolle über alle Animationen gibt.
Diese Beispiel-App enthält Übersetzungs- und Skalierungs-Animatoren. Es wird von der kleinen quadratischen Positionsansicht auf der linken Seite des Bildschirms animiert. Dieses Verhalten kann leicht geändert werden.
Demo: https://dl.dropboxusercontent.com/u/87080012/device-2016-03-25-160611.mp4
Link auf den Projekt-Repo: https://[email protected]/dkarmazi/androidrecyclerviewanimation.git
Aktivität
public class MainActivity extends AppCompatActivity implements Adapter.ItemClickListener, CustomView.CloseButtonClickListener {
public static final int ANIMATION_SPEED = 3000;
private RecyclerView recyclerView;
private CustomView customView;
private RelativeLayout rootView;
private Rect lastClickedRecyclerViewItemRect;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rootView = (RelativeLayout) findViewById(R.id.root_view);
recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
customView = (CustomView) findViewById(R.id.custom_view);
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
recyclerView.setAdapter(new Adapter(getApplicationContext(), this, getSampleData()));
}
@Override
public void onItemClicked(View clickedView, int position, String title) {
lastClickedRecyclerViewItemRect = new Rect();
clickedView.getGlobalVisibleRect(lastClickedRecyclerViewItemRect);
Rect targetViewRect = new Rect();
rootView.getGlobalVisibleRect(targetViewRect);
AnimatorSet animatorSet = getViewToViewScalingAnimator(rootView, customView, lastClickedRecyclerViewItemRect, targetViewRect, ANIMATION_SPEED, 0);
customView.setData(position, title, this);
customView.setVisibility(View.VISIBLE);
animatorSet.start();
}
@Override
public void onCloseButtonClicked(int position) {
Rect clickedViewRect = new Rect();
customView.getGlobalVisibleRect(clickedViewRect);
AnimatorSet animatorSet = getViewToViewScalingAnimator(rootView, customView, clickedViewRect, lastClickedRecyclerViewItemRect, ANIMATION_SPEED, 0);
animatorSet.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
// no op
}
@Override
public void onAnimationEnd(Animator animation) {
customView.setVisibility(View.GONE);
}
@Override
public void onAnimationCancel(Animator animation) {
// no op
}
@Override
public void onAnimationRepeat(Animator animation) {
// no op
}
});
animatorSet.start();
}
public static AnimatorSet getViewToViewScalingAnimator(final RelativeLayout parentView,
final View viewToAnimate,
final Rect fromViewRect,
final Rect toViewRect,
final long duration,
final long startDelay) {
// get all coordinates at once
final Rect parentViewRect = new Rect(), viewToAnimateRect = new Rect();
parentView.getGlobalVisibleRect(parentViewRect);
viewToAnimate.getGlobalVisibleRect(viewToAnimateRect);
viewToAnimate.setScaleX(1f);
viewToAnimate.setScaleY(1f);
// rescaling of the object on X-axis
final ValueAnimator valueAnimatorWidth = ValueAnimator.ofInt(fromViewRect.width(), toViewRect.width());
valueAnimatorWidth.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
// Get animated width value update
int newWidth = (int) valueAnimatorWidth.getAnimatedValue();
// Get and update LayoutParams of the animated view
RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) viewToAnimate.getLayoutParams();
lp.width = newWidth;
viewToAnimate.setLayoutParams(lp);
}
});
// rescaling of the object on Y-axis
final ValueAnimator valueAnimatorHeight = ValueAnimator.ofInt(fromViewRect.height(), toViewRect.height());
valueAnimatorHeight.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
// Get animated width value update
int newHeight = (int) valueAnimatorHeight.getAnimatedValue();
// Get and update LayoutParams of the animated view
RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) viewToAnimate.getLayoutParams();
lp.height = newHeight;
viewToAnimate.setLayoutParams(lp);
}
});
// moving of the object on X-axis
ObjectAnimator translateAnimatorX = ObjectAnimator.ofFloat(viewToAnimate, "X", fromViewRect.left - parentViewRect.left, toViewRect.left - parentViewRect.left);
// moving of the object on Y-axis
ObjectAnimator translateAnimatorY = ObjectAnimator.ofFloat(viewToAnimate, "Y", fromViewRect.top - parentViewRect.top, toViewRect.top - parentViewRect.top);
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.setInterpolator(new DecelerateInterpolator(1f));
animatorSet.setDuration(duration); // can be decoupled for each animator separately
animatorSet.setStartDelay(startDelay); // can be decoupled for each animator separately
animatorSet.playTogether(valueAnimatorWidth, valueAnimatorHeight, translateAnimatorX, translateAnimatorY);
return animatorSet;
}
private static List<String> getSampleData() {
List<String> dataList = new ArrayList<>();
dataList.add("zero");
dataList.add("one");
dataList.add("two");
dataList.add("three");
dataList.add("four");
dataList.add("five");
dataList.add("six");
dataList.add("seven");
dataList.add("eight");
dataList.add("nine");
dataList.add("ten");
dataList.add("eleven");
dataList.add("twelve");
dataList.add("thirteen");
dataList.add("fourteen");
dataList.add("fifteen");
dataList.add("sixteen");
dataList.add("seventeen");
dataList.add("eighteen");
dataList.add("nineteen");
dataList.add("twenty");
return dataList;
}
}
Aktivität Layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/root_view"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"/>
<com.dkarmazi.android.myapplication.CustomView
android:id="@+id/custom_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone"/>
</RelativeLayout>
Benutzerdefinierte Ansicht, die Vollbild angezeigt wird
public class CustomView extends FrameLayout {
public interface CloseButtonClickListener {
void onCloseButtonClicked(int position);
}
private TextView positionView;
private TextView titleView;
private View closeView;
private CloseButtonClickListener closeButtonClickListener;
private int position;
public CustomView(Context context) {
super(context);
init();
}
public CustomView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public CustomView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public CustomView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init();
}
private void init() {
inflate(getContext(), R.layout.custom_view, this);
positionView = (TextView) findViewById(R.id.custom_view_position);
titleView = (TextView) findViewById(R.id.custom_view_title);
closeView = findViewById(R.id.custom_view_close_button);
closeView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(closeButtonClickListener != null) {
closeButtonClickListener.onCloseButtonClicked(position);
}
}
});
}
public void setData(int position, String title, CloseButtonClickListener closeButtonClickListener) {
this.position = position;
this.positionView.setText("" + position);
this.titleView.setText(title);
this.closeButtonClickListener = closeButtonClickListener;
}
}
-Layout für die benutzerdefinierte Ansicht
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/holo_red_dark">
<ImageView
android:id="@+id/custom_view_close_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@android:drawable/ic_menu_close_clear_cancel"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
android:layout_marginTop="50dp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="20sp"
android:gravity="center"
android:layout_gravity="top"
android:text="Position:" />
<TextView
android:id="@+id/custom_view_position"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="25sp"
android:gravity="center"
android:layout_gravity="top"
android:paddingBottom="100dp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="20sp"
android:gravity="center"
android:layout_gravity="top"
android:text="Title:" />
<TextView
android:id="@+id/custom_view_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:gravity="center"
android:textSize="25sp"
android:layout_gravity="center"/>
</LinearLayout>
</RelativeLayout>
RecyclerView Adapter
public class Adapter extends RecyclerView.Adapter {
public interface ItemClickListener {
void onItemClicked(View v, int position, String title);
}
private Context context;
private ItemClickListener itemClickListener;
private List<String> dataList;
public Adapter(Context context, ItemClickListener itemClickListener, List<String> dataList) {
this.context = context;
this.itemClickListener = itemClickListener;
this.dataList = dataList;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.recycler_view_item, null, false);
return new MyViewHolder(view, new OnRecyclerItemClickListener());
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
((MyViewHolder) holder).onRecyclerItemClickListener.updatePosition(position);
((MyViewHolder) holder).position.setText("" + position);
((MyViewHolder) holder).title.setText(dataList.get(position));
}
@Override
public int getItemCount() {
return dataList.size();
}
private class MyViewHolder extends RecyclerView.ViewHolder {
private OnRecyclerItemClickListener onRecyclerItemClickListener;
private TextView position;
private TextView title;
public MyViewHolder(View itemView, OnRecyclerItemClickListener onRecyclerItemClickListener) {
super(itemView);
itemView.setOnClickListener(onRecyclerItemClickListener);
this.onRecyclerItemClickListener = onRecyclerItemClickListener;
this.position = (TextView) itemView.findViewById(R.id.position);
this.title = (TextView) itemView.findViewById(R.id.title);
}
}
private class OnRecyclerItemClickListener implements View.OnClickListener {
private int position = -1;
public void updatePosition(int position) {
this.position = position;
}
@Override
public void onClick(View v) {
if(itemClickListener != null) {
itemClickListener.onItemClicked(v.findViewById(R.id.position), position, dataList.get(position));
}
}
}
}
Recycler Artikel ansehen Layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/recycler_view_item"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp">
<TextView
android:id="@+id/position"
android:layout_width="30dp"
android:layout_height="50dp"
android:textColor="@android:color/white"
android:gravity="center"
android:background="@android:color/holo_green_light"
android:layout_alignParentLeft="true"/>
<TextView
android:id="@+id/title"
android:layout_width="match_parent"
android:layout_height="50dp"
android:textColor="@android:color/white"
android:gravity="center"
android:background="@android:color/holo_green_dark"
android:layout_toRightOf="@id/position"
android:layout_alignParentRight="true"/>
</RelativeLayout>
(vergibt die Prämie, wenn SO ermöglicht es mir, es zu tun) . Ich denke, es gibt keine Möglichkeit, dies mit einer Aktivität zu tun, die ich gerade dachte. Also das ist endlich der Trick !! danke sehr mcuh –