在将其标记为重复项之前，我已经尝试了所有解决方案，但均无济于事。请完成这个问题并帮助我。
我有一个回收器 View ，它将有多个 viewPagers，并且它们都将单独滚动。我似乎无法实现这一点。我的代码如下
RecyclerView 适配器
public class Adapter extends RecyclerView.Adapter<Adapter.holder> {
private final LayoutInflater mLayoutInflater;
private final Context context;
private final RecyclerView r;
private OnLoadMoreListener onLoadMoreListener;
ArrayList<ceo> mArray = new ArrayList<>();
private int heightPixels;
private int widthPixels;
MainActivity contextActivity;
public holder mh;
public Adapter(Context mContext, final RecyclerView r,MainActivity conts) {
contextActivity=conts;
this.r=r;
context = mContext;
mLayoutInflater = LayoutInflater.from(mContext);
r.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
if (!r.canScrollVertically(1)) {
onLoadMoreListener.onLoadMore();
}
}
});
}
public void setmArray(ArrayList<ceo> mArray) {
this.mArray = mArray;
Log.e("This->", mArray.toString());
notifyItemRangeChanged(0, mArray.size());
}
@Override
public holder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = mLayoutInflater.inflate(R.layout.recycler_custom_photo,viewGroup, false);
mh = new Adapter.holder(v);
return mh;
}
public void setOnLoadMoreListener(OnLoadMoreListener onLoadMoreListener) {
this.onLoadMoreListener = onLoadMoreListener;
}
@Override
public void onBindViewHolder(holder holder, int i) {
ViewPagerAdapter mp = new ViewPagerAdapter(context,mArray);
holder.vp.setAdapter(mp);
}
@Override
public int getItemCount() {
return mArray.size();
}
class holder extends RecyclerView.ViewHolder {
ViewPager vp;
public holder(View itemView) {
super(itemView);
vp=(ViewPager)itemView.findViewById(R.id.pager);
}
}
}
查看寻呼机适配器
public class ViewPagerAdapter extends PagerAdapter {
ArrayList<ceo> alias=null;
private boolean tk=true;
Context mcov;
public ViewPager(Context context,ArrayList<ceo> checkAlias) {
mcov=context;
this.alias=checkAlias;
}
@Override
public int getCount() {
Log.e("Sze",alias.size()+"");
return alias.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
public void setNestedIndic(boolean token)
{
tk=token;
}
public Bitmap decodeFile(File f) {
try {
//Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f), null, o);
//The new size we want to scale to
final int REQUIRED_SIZE = 290;
//Find the correct scale value. It should be the power of 2.
int scale = 1;
while (o.outWidth / scale / 2 >= REQUIRED_SIZE && o.outHeight / scale / 2 >= REQUIRED_SIZE)
scale *= 2;
//Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
} catch (FileNotFoundException e) {
}
return null;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
LayoutInflater mlAy = (LayoutInflater) mcov
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View m=mlAy.inflate(R.layout.custom_photo, container, false);
ImageView mimg=(ImageView)m.findViewById(R.id.mainImageFeed);
TextView tc=(TextView)m.findViewById(R.id.texr);
String path=alias.get(position).getPath();
Log.e("Pos",""+position);
tc.setText(position+" ");
container.addView(m);
return m;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
// Remove viewpager_item.xml from ViewPager
((android.support.v4.view.ViewPager) container).removeView((RelativeLayout) object);
}
}
recycler_custom_photo.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
custom_photo.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:background="#313131"
android:id="@+id/taken"
android:layout_height="wrap_content">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="@drawable/old"
android:id="@+id/mainImageFeed"
android:layout_centerVertical="true"
android:adjustViewBounds="true"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/texr"
android:textSize="40dp"
/>
</RelativeLayout>
我需要进行哪些更改才能使这些工作正常进行？谢谢您的回答!
最佳答案
代码很好。我错过的是在 recyclerview 中为 viewpager 添加了一个特定的高度。此外，我在 PagerAdapter 的构造函数中实例化了 LayoutInflater 而不是实例化 Item。希望这对以后的人有帮助!
关于java - recyclerview 中的 ViewPager，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41028303/