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我使用的片段，其中是一個畫廊這表明你從我的自定義視頻庫中選擇視頻的縮略圖。 我在畫廊它可以幫助您從片段移動到活動選擇一些影片，然後再回來與填充在網格視圖中的數據相同的片段中使用的按鈕。在recyclerView增加兩個ViewHolders一起
問題陳述：我已經按照這個鏈接Using two viewHolder in the same Adapter和實施是新的東西，在Addfragment我有一個ImageButton的是有在位置0時，沒有將立即顯示了你打你去的按鈕直到下一個活動，當選擇了一些視頻時，你再次來到AddFragment，現在同一個imageButton改變它的位置。
對於上面我用了兩個viewHolder但由於知識較少有關使用它我卡住瞭如何使用它。請指導相同的事情，以便達到我願意實現的目標。
1.AddFragment.java
public class AddFragment extends Fragment {
private ImageButton nextActivity;
private RecyclerView recyclerView;
ArrayList<File> checkedList = new ArrayList<>();
ImageAdapter imageAdapter;
Button button;
private static final int CustomGallerySelectId = 1;//Set Intent Id
public AddFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_add, container, false);
nextActivity = (ImageButton) view.findViewById(R.id.gotoButton);
recyclerView = (RecyclerView) view.findViewById(R.id.grid_add_view);
button = (Button) view.findViewById(R.id.buttonToGallery);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startActivityForResult(new Intent(getContext(),VideoGalleryActivity.class),CustomGallerySelectId);
}
});
return view;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.e("IT IS WORKING","YES");
switch(requestCode){
case CustomGallerySelectId :
if(resultCode == RESULT_OK){
Log.e("ADAPTER SETTING","DOING");
//getting the passed value from videogallery
ArrayList<String> getValue = data.getExtras().getStringArrayList("sendData");
Log.e("RECEIVED_DATA======",data.getExtras().getSerializable("sendData").toString());
//adding the files to the list
for(String pathName : getValue) {
File filePath = new File(pathName);
checkedList.add(filePath);
}
//setting the adapter
imageAdapter = new ImageAdapter(checkedList);
GridLayoutManager videoGrid = new GridLayoutManager(getContext(),3);
recyclerView.setLayoutManager(videoGrid);
recyclerView.setAdapter(imageAdapter);
recyclerView.setVisibility(View.VISIBLE);
}
}
}
//making adapter for RecyclerView which loads the desired files
class ImageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>{
private Bitmap bitmap;
private ArrayList<File> fileName;
public ImageAdapter(ArrayList<File> checkedList) {
fileName = checkedList;
}
class ViewHolderGalleryImage extends RecyclerView.ViewHolder {
public ImageView imageView;
public ViewHolderGalleryImage(View itemView) {
super(itemView);
imageView = (ImageView) itemView.findViewById(R.id.galleryImageView);
}
}
class ViewHolderImageButton extends RecyclerView.ViewHolder{
public ImageButton imageButton;
public ViewHolderImageButton(View itemView) {
super(itemView);
imageButton = (ImageButton) itemView.findViewById(R.id.gotoGalleryButton);
}
}
@Override
public int getItemViewType(int position) {
if(fileName !=null){
}
return super.getItemViewType(position);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch(viewType){
case 0 : View galleryView = LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_added_video,
parent,false);
galleryView.setLayoutParams(new AbsListView.LayoutParams(215,215));
return new ViewHolderGalleryImage(galleryView);
case 1 : View imageButtonView = LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_button_layout,
parent,false);
imageButtonView.setLayoutParams(new AbsListView.LayoutParams(215,215));
return new ViewHolderImageButton(imageButtonView);
}
return null;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
switch (holder.getItemViewType()){
case 0: if(fileName != null){
bitmap = ThumbnailUtils.createVideoThumbnail(fileName.get(position).toString(),1);
}
}
}
@Override
public int getItemCount() {
return fileName.size();
}
} }
佈局1，其膨脹部署從VideoGalery的圖像轉換成AddFragment custom_added_video.xml
<?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="wrap_content"
android:background="@color/colorWhite"
android:layout_marginTop="3dp"
android:layout_marginBottom="3dp"
android:layout_marginEnd="3dp"
android:layout_marginStart="3dp">
<ImageView
android:id="@+id/galleryImageView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
android:layout_margin="3dp"
android:layout_centerInParent="true"/>
佈局它由圖像按鈕 custom_button_layout.xml
<?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="wrap_content"
android:background="@color/colorWhite"
android:layout_marginTop="3dp"
android:layout_marginBottom="3dp"
android:layout_marginEnd="3dp"
android:layout_marginStart="3dp">
<ImageButton
android:id="@+id/gotoGalleryButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/edittext_border"
android:layout_margin="3dp"
android:src="@mipmap/ic_add_black_24dp"
android:layout_centerInParent="true"/>
我很困惑什麼是否在getItemViewType imlpement（）實現的結果。
你的意思'getItemViewType（）'？ – Bob
耶正確。對不起這是我的錯。 –