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Ich habe Beispielcode von https://github.com/chrisbanes/cheesesquare als Basis genommen, um Bilder in StaggeredGridLayoutManager anzuzeigen. StaggeredGridLayoutManager mit RecyclerView zeigt nur zwei Bilder pro Seite.StaggeredGridLayoutManager mit recyclerview zeigt nur zwei Bilder pro Seite
Ich versuchte fast alle Möglichkeiten, mehrere Bilder in der ganzen Seite anzuzeigen, aber es funktioniert nicht. Jede Hilfe wäre großartig.
fragment_cheese_list.xml
<RelativeLayout 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:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.support.android.designlibdemo.MainActivity">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardUseCompatPadding="true"
app:cardCornerRadius="4dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@color/color_primary_teal">
<!--<android.support.v7.widget.CardView-->
<!--xmlns:card_view="http://schemas.android.com/apk/res-auto"-->
<!--xmlns:android="http://schemas.android.com/apk/res/android"-->
<!--android:id="@+id/card_view"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content"-->
<!--card_view:cardUseCompatPadding="true"-->
<!--card_view:cardCornerRadius="8dp"-->
<!--android:layout_marginBottom="16dp">-->
<!--<RelativeLayout-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="match_parent">-->
<!--<de.hdodenhof.circleimageview.CircleImageView-->
<!--android:id="@+id/avatar"-->
<!--android:layout_width="@dimen/list_item_avatar_size"-->
<!--android:layout_height="@dimen/list_item_avatar_size"-->
<!--android:layout_marginRight="16dp"/>-->
<ImageView
android:id="@+id/avatar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:scaleType="fitXY"
android:onClick="getImageDetails" />
<TextView
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textAppearance="?attr/textAppearanceListItem"/>
<!--</RelativeLayout>-->
<!--</android.support.v7.widget.CardView>-->
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
CheeseListFragment.java
package com.support.android.designlibdemo;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class CheeseListFragment extends Fragment {
//private RecyclerView.StaggeredGridLayoutManager mLayoutManager;
int cheeseImages[]= {R.drawable.cheese_1,R.drawable.cheese_2,R.drawable.cheese_3,
R.drawable.cheese_4,R.drawable.cheese_5};
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
RelativeLayout relativeLayout = (RelativeLayout) inflater.inflate(R.layout.fragment_cheese_list, container, false);
RecyclerView rv = (RecyclerView) relativeLayout.findViewById(R.id.recyclerview);
//RecyclerView rv = (RecyclerView) inflater.inflate(R.layout.fragment_cheese_list, container, false);
setupRecyclerView(rv);
return rv;
}
private void setupRecyclerView(RecyclerView recyclerView) {
//recyclerView.setLayoutManager(new LinearLayoutManager(recyclerView.getContext()));
StaggeredGridLayoutManager mLayoutManager = new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
mLayoutManager.setGapStrategy(StaggeredGridLayoutManager.GAP_HANDLING_NONE);
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setHasFixedSize(true);
ArrayList<ImageDetails> placeList = getPlaces();
recyclerView.setAdapter(new SimpleStringRecyclerViewAdapter(getActivity(), getRandomSublist(Cheeses.sCheeseStrings, 30), placeList));
}
private List<String> getRandomSublist(String[] array, int amount) {
ArrayList<String> list = new ArrayList<>(amount);
Random random = new Random();
while (list.size() < amount) {
list.add(array[random.nextInt(array.length)]);
}
return list;
}
private ArrayList<ImageDetails> getPlaces() {
ArrayList<ImageDetails> details = new ArrayList<>();
for (int index=0; index<30;index++){
details.add(new ImageDetails(Cheeses.getRandomCheeseDrawable()));
}
return details;
}
public static class SimpleStringRecyclerViewAdapter
extends RecyclerView.Adapter<SimpleStringRecyclerViewAdapter.ViewHolder> {
private final TypedValue mTypedValue = new TypedValue();
private int mBackground;
private List<String> mValues;
private ArrayList<ImageDetails> mImagesList;
public static class ViewHolder extends RecyclerView.ViewHolder {
public String mBoundString;
public final View mView;
public final ImageView mImageView;
public final TextView mTextView;
public ViewHolder(View view) {
super(view);
mView = view;
mImageView = (ImageView) view.findViewById(R.id.avatar);
mTextView = (TextView) view.findViewById(android.R.id.text1);
}
@Override
public String toString() {
return super.toString() + " '" + mTextView.getText();
}
}
public SimpleStringRecyclerViewAdapter(Context context, List<String> items, ArrayList<ImageDetails> imageList) {
// context.getTheme().resolveAttribute(R.attr.selectableItemBackground, mTypedValue, true);
// mBackground = mTypedValue.resourceId;
mValues = items;
mImagesList = imageList;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
//view.setBackgroundResource(mBackground);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.mBoundString = mValues.get(position);
holder.mTextView.setText(mValues.get(position));
holder.mView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Context context = v.getContext();
Intent intent = new Intent(context, CheeseDetailActivity.class);
intent.putExtra(CheeseDetailActivity.EXTRA_NAME, holder.mBoundString);
context.startActivity(intent);
}
});
holder.mImageView.setImageResource(mImagesList.get(position).getImageUrl());
// Glide.with(holder.mImageView.getContext())
// .load(Cheeses.getRandomCheeseDrawable())
// .fitCenter()
// .into(holder.mImageView);
}
@Override
public int getItemCount() {
return mValues.size();
}
}
}