在我的场景中，如果我单击扩展卡，card_1那么所有其他卡都应该是不可见的。另外，我可以更改卡片运行时的位置，以便它可以将第二张卡片移动到第一张卡片的位置，并且它将扩展到全屏，因此无需隐藏其他卡片。
请检查所附图像。
public class DashboardMarketAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int VIEW_TYPE_TOP_MENU = 0;
private static final int VIEW_TYPE_MARKET_MOVERS = 1;
private static final int VIEW_TYPE_DERIVATIVES = 2;
private static final int VIEW_TYPE_NEWS = 3;
private final Context context;
private final String[] menuItems;
public DashboardMarketAdapter(Context context, String[] menuItems) {
super();
this.context = context;
this.menuItems = menuItems;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v;
switch (viewType) {
case VIEW_TYPE_TOP_MENU:
v = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_top_view, parent, false);
return new TopMenuViewHolder(v, parent.getContext());
case VIEW_TYPE_MARKET_MOVERS:
v = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_market_movers, parent, false);
return new MarketMoversViewHolder(v, parent.getContext());
case VIEW_TYPE_DERIVATIVES:
v = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_market_derivatives, parent, false);
return new MarketDerivativesViewHolder(v);
case VIEW_TYPE_NEWS:
v = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_top_news, parent, false);
return new TopNewsViewHolder(v);
default:
throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
}
/**
* The length of the string array will tell recycler view the count of the card views.
*/
@Override
public int getItemCount() {
return menuItems.length;
}
/**
* @param position this will return the view of the card according to the position of the card.
*/
@Override
public int getItemViewType(int position) {
switch (position) {
case VIEW_TYPE_TOP_MENU:
return VIEW_TYPE_TOP_MENU;
case VIEW_TYPE_MARKET_MOVERS:
return VIEW_TYPE_MARKET_MOVERS;
case VIEW_TYPE_DERIVATIVES:
return VIEW_TYPE_DERIVATIVES;
case VIEW_TYPE_NEWS:
return VIEW_TYPE_NEWS;
default:
return 0;
}
}
/**
* This view holder is holding the view of topmost card,
* which contains tab and viewpager.
*/
static class TopMenuViewHolder extends RecyclerView.ViewHolder {
@InjectView(R.id.pager)
ViewPager top_view_pager;
@InjectView(R.id.tabs)
DashboardSlidingTabLayout top_view_tabs;
@InjectView(R.id.expand)
Button btnExpand;
@InjectView(R.id.card_view)
CardView cardView;
private DashboardTabAdapter adapter;
private CharSequence Titles[];
private int NumberOfTabs;
int pos;
static int setView = 0;
int minHeight;
public static final int TOP_VIEW = 0;
public static final int INDICES = 1;
public static final int COMMODITY = 2;
public static final int CURRENCY = 3;
public TopMenuViewHolder(View itemView, final Context context) {
super(itemView);
ButterKnife.inject(this, itemView);
Titles = context.getResources().getStringArray(R.array.string_array_dashboard_tab_menu);
Bundle bundle = new Bundle();
bundle.putInt("setView", setView);
NumberOfTabs = Titles.length;
adapter = new DashboardTabAdapter(((FragmentActivity) context).getSupportFragmentManager(), Titles, NumberOfTabs, bundle);
top_view_pager.setAdapter(adapter);
top_view_tabs.setViewPager(top_view_pager);
/**
* Here visibility of Expand button is decided upon the tab selected.
*/
top_view_pager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
pos = position;
if (position > 0) {
btnExpand.setVisibility(View.VISIBLE);
initializeTab();
} else if (position == 0) {
btnExpand.setVisibility(View.GONE);
collapseView();
}
}
});
/**
* This will be used to give initial height for the top card.
*/
cardView.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
cardView.getViewTreeObserver().removeOnPreDrawListener(this);
minHeight = cardView.getHeight();
ViewGroup.LayoutParams layoutParams = cardView.getLayoutParams();
layoutParams.height = minHeight;
cardView.setLayoutParams(layoutParams);
return true;
}
});
/**
* Here you can get the height of the screen
*/
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics dimension = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(dimension);
final int height = dimension.heightPixels;
/**
* Here you can add logic for expanding a card.
*/
btnExpand.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("Dashboard", "Current Fragment" + top_view_pager.getCurrentItem());
new ChildRecyclerView(context, true);
new ParentRecyclerView(context, false);
toggleCardViewnHeight(height);
}
});
}
/**
* This method will toggle expand and collapse of card view.
*/
private void toggleCardViewnHeight(int height) {
int ViewMinHeight = minHeight;
if (cardView.getHeight() == ViewMinHeight) {
// expand
expandView(height);
} else {
// collapse
collapseView();
}
}
/**
* This method will initialize tab adapter depending upon the page selected.
*/
public void initializeTab() {
switch (top_view_pager.getCurrentItem()) {
case INDICES:
((IndicesFragment) adapter.getRegisteredFragment(INDICES)).initUI();
break;
case COMMODITY:
((CommodityDashboardFragment) adapter.getRegisteredFragment(COMMODITY)).initUI();
break;
case CURRENCY:
((CurrencyDashboardFragment) adapter.getRegisteredFragment(CURRENCY)).initUI();
break;
}
}
/**
* Collapse View Animation
*/
public void collapseView() {
BaseFragment.isExpanded = 0;
ValueAnimator anim = ValueAnimator.ofInt(cardView.getMeasuredHeightAndState(),
minHeight);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = cardView.getLayoutParams();
layoutParams.height = val;
cardView.setLayoutParams(layoutParams);
}
});
anim.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
initializeTab();
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
anim.start();
}
/**
* Expand View Animation
*/
public void expandView(int height) {
BaseFragment.isExpanded = 1;
ValueAnimator anim = ValueAnimator.ofInt(cardView.getMeasuredHeightAndState(),
height);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = cardView.getLayoutParams();
layoutParams.height = val;
cardView.setLayoutParams(layoutParams);
}
});
anim.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
initializeTab();
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
anim.start();
}
}
/**
* This view holder is holding the view of MarketMovers card,
*/
static class MarketMoversViewHolder extends RecyclerView.ViewHolder {
@InjectView(R.id.btnExpand)
Button btnExpand;
@InjectView(R.id.card_view)
CardView cardView;
@InjectView(R.id.relativeLayout)
RelativeLayout relativeLayout;
int height;
String []menuItem={"MARKET MOVERS","DERIVATIVES","TOP NEWS"};
public MarketMoversViewHolder(View itemView, final Context context) {
super(itemView);
ButterKnife.inject(this, itemView);
relativeLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
relativeLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
height = relativeLayout.getHeight();
ViewGroup.LayoutParams layoutParams = cardView.getLayoutParams();
layoutParams.height = 400;
cardView.setLayoutParams(layoutParams);
}
});
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics dimension = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(dimension);
int width = dimension.widthPixels;
final int screenHeight = dimension.heightPixels;
final int fullHeight = screenHeight - 400;
btnExpand.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
toggleCardViewnHeight(fullHeight);
DashboardMarketAdapter DM =new DashboardMarketAdapter(context,menuItem);
DM.notifyDataSetChanged();
}
});
}
private void toggleCardViewnHeight(int height) {
int ViewMinHeight = 400;
if (cardView.getHeight() == ViewMinHeight) {
// expand
ValueAnimator anim = ValueAnimator.ofInt(cardView.getMeasuredHeightAndState(),
height);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = cardView.getLayoutParams();
layoutParams.height = val;
cardView.setLayoutParams(layoutParams);
}
});
anim.start();
} else {
// collapse
ValueAnimator anim = ValueAnimator.ofInt(cardView.getMeasuredHeightAndState(),
ViewMinHeight);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
int val = (Integer) valueAnimator.getAnimatedValue();
ViewGroup.LayoutParams layoutParams = cardView.getLayoutParams();
layoutParams.height = val;
cardView.setLayoutParams(layoutParams);
}
});
anim.start();
}
}
}
/**
* This view holder is holding the view of Derivatives card,
*/
private class MarketDerivativesViewHolder extends RecyclerView.ViewHolder {
public MarketDerivativesViewHolder(View v) {
super(v);
}
}
/**
* This view holder is holding the view of NEWS card,
*/
private class TopNewsViewHolder extends RecyclerView.ViewHolder {
public TopNewsViewHolder(View v) {
super(v);
}
}
}