问题
I want to have a gridview similar to this
Every odd numbered row will have two images of big size and even numbered rows will have four smaller images.How can I achieve this?
回答1:
I have something similar and i solved with the new RecyclerView.
I created a Fragment with an a RecyclerView. RecyclerView on xml:
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/filter_subtypes" android:layout_width="match_parent" android:layout_height="match_parent" />
On your Fragment/Activity (OnViewCreated in my fragment case). I find the RecyclerView and set an Adapter- a normal Adapter class inherit from RecyclerView.Adapter< YOUR VIEW HOLDER class >- And then i create a GridLayoutManager
final GridLayoutManager mng_layout = new GridLayoutManager(this.getActivity(), TOTAL_CELLS_PER_ROW/*In your case 4*/);
Then i override this method to set a dynamic numbers of columns (cells)
mng_layout.setSpanSizeLookup( new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
switch( adapterSubtype.getItemViewType(position) ) {
case FilterSubtypesAdapter.TYPE_LOW:
return TOTAL_CELLS_PER_ROW;
case FilterSubtypesAdapter.TYPE_HIGH:
return 2;
default:
return -1;
}
}
});
myRecyclerView.setLayoutManager(mng_layout);
With this you will get dynamic numbers of cell on your rows.
EXTRA: Then if you are using the same view/type view on your adapter, you will get the same w & h view. You will need to create 2 xml views for TYPE_HIGH and other view for TYPE_LOW.
So, in your adapter, you need to have 2 kind of data (1 for high images and 1 for low images). You must override this methods
@Override
public SubtypeViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = null;
if (viewType==TYPE_HIGH) {
view = inflater.inflate(R.layout.item_image_high, parent, false);
} else {
view = inflater.inflate(R.layout.item_image_low, parent, false);
}
return new SubtypeViewHolder(view, viewType);
}
@Override
public int getItemViewType(int position) {
return (list.get(position).getType()==Subtype_type.HIGH) ? TYPE_HIGH : TYPE_LOW;
}
I hope i was clear, any problem tell me.
回答2:
Instead of considering a single image views i am taking group of three images as a single grid item,
try this inside your grid adapter
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/green"
android:orientation="vertical">
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="fitXY"
android:src="@drawable/user"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/image_1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:scaleType="fitXY"
android:src="@drawable/user"
/>
<ImageView
android:id="@+id/image_2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@drawable/user"
android:scaleType="fitXY"
android:layout_weight="1"
/>
</LinearLayout>
</LinearLayout>
and your grid view would be like
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numColumns="2"
>
</GridView>
The only thing you have to take care of is, the sequence of your image. might be this will help you
回答3:
If you are using RecyclerView for GridView, then there is solution that should work for you:
GridLayoutManager layoutManager = new GridLayoutManager(this, 4);
layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
int mod = position % 6;
if(position == 0 || position == 1)
return 2;
else if(position < 6)
return 1;
else if(mod == 0 || mod == 1)
return 2;
else
return 1;
}
});
recyclerView.setLayoutManager(layoutManager);
Hope this work for you!
回答4:
I guess the best way to do is using recycler view.. Also it is preferred over list/grid for performance
May be below links can help a lot - All are related to Two way View by Lucas
https://github.com/lucasr/twoway-view
https://plus.google.com/+LucasRocha/posts/WBaryNqAHiy
http://lucasr.org/2014/07/31/the-new-twowayview/
回答5:
There is how does it work in my project I have different height of cells and also header
adapter:
public class AdapterRecViewMain
extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private List<BaseMarkerElement> mainCardList;
private final int HEADER_VIEW = 0;
private final int FOOTER_VIEW = 1;
public AdapterRecViewMain() {
}
public void setData(List<BaseMarkerElement> mainCardList) {
this.mainCardList = mainCardList;
}
@Override public int getItemViewType(int position) {
if (position == 0) {
return HEADER_VIEW;
}
return FOOTER_VIEW;
}
@Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int type) {
if (type == FOOTER_VIEW) {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.card_main_activity, viewGroup, false);
return new MainCardViewHolder(v);
} else {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.header_view_main_activity, viewGroup, false);
return new HeaderViewHolder(v);
}
}
@Override public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int positionItem) {
final int position = viewHolder.getAdapterPosition();
if (viewHolder instanceof HeaderViewHolder) {
StaggeredGridLayoutManager.LayoutParams layoutParams =
(StaggeredGridLayoutManager.LayoutParams) viewHolder.itemView.getLayoutParams();
layoutParams.setFullSpan(true);
BaseMarkerElement item = mainCardList.get(position);
if (item instanceof HeaderView) {
HeaderView header = (HeaderView) mainCardList.get(position);
// need to add implementation
}
} else if (viewHolder instanceof MainCardViewHolder) {
MainCardViewHolder currentView = (MainCardViewHolder) viewHolder;
CardMainActivity currentCard = (CardMainActivity) mainCardList.get(position);
currentView.ivMainCard.setImageResource(currentCard.getIvMainCard());
currentView.tvBrandName.setText(currentCard.getTvBrandName());
currentView.tvPrice.setText(currentCard.getTvPrice());
currentView.tvType.setText(currentCard.getTvType());
}
}
@Override public int getItemCount() {
return mainCardList.size();
}
private class MainCardViewHolder extends RecyclerView.ViewHolder {
ImageView ivMainCard;
TextView tvBrandName;
TextView tvType;
TextView tvPrice;
MainCardViewHolder(View view) {
super(view);
ivMainCard = (ImageView) view.findViewById(R.id.imageViewMainCard);
tvBrandName = (TextView) view.findViewById(R.id.tvBrandName);
tvType = (TextView) view.findViewById(R.id.tvType);
tvPrice = (TextView) view.findViewById(R.id.tvPrice);
}
}
private class HeaderViewHolder extends RecyclerView.ViewHolder {
public HeaderViewHolder(View itemView) {
super(itemView);
}
}
}
In your activity :
private AdapterRecViewMain adapter;
private RecyclerView rvMain;
@Override protected void onResume() {
super.onResume();
Logger.logGeneral("onResume()");
if (adapter == null) {
setUpRecView();
}
}
private void setUpRecView() {
adapter = new AdapterRecViewMain();
adapter.setData(controller.loadData());
rvMain = (RecyclerView) findViewById(R.id.rvMain);
final StaggeredGridLayoutManager layoutManager =
new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
rvMain.setLayoutManager(layoutManager);
rvMain.addOnScrollListener(scrollListener);
rvMain.setAdapter(adapter);
adapter.notifyDataSetChanged();
rvMain.invalidate();
}
回答6:
Create two different XML files and inflate based on position in your Adapter like below.
if(position%2==0){
//Inflate Even number layout with 4 images
}else{
//Inflate ODD number layout with 2 images
}
回答7:
Did you try a RecyclerView in a combination with a StaggeredGridLayoutManager?
This combination results in something like this: video.
I think, this is what you are looking for.
回答8:
Try this ,
https://github.com/etsy/AndroidStaggeredGrid
Staggered-Grid View ,
Extremely simple , easy to use.
回答9:
Use Expandable list view and provide different view for each row.
http://developer.android.com/reference/android/widget/ExpandableListView.html
来源：https://stackoverflow.com/questions/29457712/how-to-set-different-columns-for-rows-in-android-gridview