我如何从一个片段到另一个片段的列表视图适配器进行事务

Question

I have a listview that I implemented in a fragment. I want to make the transition to the details fragment at the moment where I click on one item and I want to display the details in the other fragment where i have one imageview for that image and 3 textview for name,price and details. I have tried several variants, but they do not succeed. thanks a lot

items.java

public class items {

    // Name of the object
    private String lName;

    // Costs
    private String lPrice;

    // Details
    private String lDetails;

    // Image resource id
    private int lImageId;

    // Constructor
    public items(String ObjectName,String ObjectPrice,int ImageResourceId,String DetailsItem){
        lName=ObjectName;
        lPrice=ObjectPrice;
        lImageId=ImageResourceId;
        lDetails=DetailsItem;

    }

    // Getters
    public String getlName() { return lName; }
    public String getlPrice(){ return lPrice; }
    public int getlImageId(){ return lImageId; }
    public String getlDetails() { return lDetails; }

    }

itemsAdapter.java

public class itemsAdapter extends ArrayAdapter<items>{

    private static final String LOG_TAG = itemsAdapter.class.getSimpleName();

    /**
     * This is our own custom constructor (it doesn't mirror a superclass constructor).
     * The context is used to inflate the layout file, and the list is the data we want
     * to populate into the lists.
     */
    public itemsAdapter(Activity context, ArrayList<items> item){
        super(context,0,item);
    }

    //Provides a view for an AdapterView (ListView, GridView, etc.)
    public View getView(int position, View convertView, ViewGroup parent){
        // Check if the existing view is being reused, otherwise inflate the view
        View listItemView = convertView;
        if(listItemView == null) {
            listItemView = LayoutInflater.from(getContext()).inflate(
                    R.layout.list_item, parent, false);
        }

        // Get the object located at this posiiton in the list
        items currentItems=getItem(position);

        // Find the TextView in the list_item.xml layout with the id name_items
        TextView nameTextView=(TextView)listItemView.findViewById(R.id.name_item);

        // Get the name from the current items object and set this text on the name TextView
        nameTextView.setText(currentItems.getlName());

        // Find the TextView in the list_item.xml layout with the id price_items
        TextView priceTextView=(TextView)listItemView.findViewById(R.id.price_item);

        // Get the price from the current items object and set this text on the price TextView
        priceTextView.setText(currentItems.getlPrice());

        // Find the ImageView in the list_item.xml layout with the id icon_item
        ImageView iconImageView=(ImageView)listItemView.findViewById(R.id.icon_item);

        // Get the image from the current items object and set this image on the image view
        iconImageView.setImageResource(currentItems.getlImageId());


        // Find the TextView in the list_item.xml layout with the id details_item
        TextView detailsView=(TextView)listItemView.findViewById(R.id.details_item);

        // Get the details from the current items object and set this text on the details TextView
        detailsView.setText(currentItems.getlDetails());

        return listItemView;
    }

}

list_item.xml

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical"
    android:minHeight="?android:attr/listPreferredItemHeight"
    android:orientation="horizontal"
    android:padding="16dp">

    <ImageView
        android:id="@+id/icon_item"
        android:layout_width="100dp"
        android:layout_height="80dp" />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="vertical"
        android:paddingLeft="16dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Name"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/name_item"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Price"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/price_item"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="vertical"

        >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Details"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/details_item"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>

</LinearLayout>


beds_fragment.xml


    <ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/listview_beds"
    android:layout_width="match_parent"
    android:layout_height="500dp"
    android:layout_gravity="bottom"
    android:background="#e3e3e3"
    />

bedsFragment.java

public class bedsFragment extends Fragment {

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.beds_fragment, container, false);


        // Create an ArrayList of items objects
        ArrayList<items> beds=new ArrayList<items>();
        beds.add(new items("Bed1","23$",R.drawable.bed1,"Beds for sleeping well, best buy if you want to sleep."));
        beds.add(new items("Bed2","43$",R.drawable.bed2,"Beds for sleeping well, best buy if you want to sleep."));
        beds.add(new items("Bed3","54$",R.drawable.bed3,"Beds for sleeping well, best buy if you want to sleep."));
        beds.add(new items("Bed4","34$",R.drawable.bed4,"Beds for sleeping well, best buy if you want to sleep."));
        beds.add(new items("Bed5","65$",R.drawable.bed5,"Beds for sleeping well, best buy if you want to sleep."));

        // Create an {@link itemsAdapter}, whose data source is a list of {@items}. The adapter
        // know how to create a list item views for each item in the list

        itemsAdapter itAdapter=new itemsAdapter(this.getActivity(),beds);

        // Get a reference to the ListView, and attach the adapter to the listView
        ListView listView=(ListView)view.findViewById(R.id.listview_beds);
        listView.setAdapter(itAdapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
                fragmentTransaction.replace(R.id.listview_beds, new storeFragment());
                fragmentTransaction.addToBackStack(null).commit();
            }
        });


        return view;
    }

    }

detailsFragment.java

public class detailsFragment extends Fragment {
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.details_fragment, container, false);
    return view;
  }
}

Answer 1

Hi you can use below code.

first of all one interface create into adapter class and First Fragment implement interface.

interface have one callback method. so when user click list item,then below method

@override callback(){

}

into first-fragment.

inside callback method below transition code right.

 FragmentTransaction fragmentTransaction = getSupportFragmentManager()
                    .beginTransaction();
    Fragment profileFragment = new MovieDetailFragment();//the fragment you want to show
    profileFragment.setArguments(bundle);
    fragmentTransaction
        .replace(R.id.content_frame, profileFragment);//R.id.content_frame is the layout you want to replace
    fragmentTransaction.addToBackStack(null);
    fragmentTransaction.commit();