Question

 @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    TextView textView = new TextView(getActivity());
    final View rootView = inflater.inflate(R.layout.aa, container, false);
    Firebase.setAndroidContext(getActivity());
    Firebase ref = new Firebase(FIREBASE_URL); 

title1=(TextView)rootView.findViewById(R.id.posttitle);
    description1=(TextView)rootView.findViewById(R.id.postdesc);
    image1=(ImageView)rootView.findViewById(R.id.postimage);


    final List<HashMap<String, String>> aList = new ArrayList<HashMap<String, String>>();
    ListView listView = (ListView) rootView.findViewById(R.id.listView);
// Keys used in Hashmap
    String[] from = {"title", "desc", "name"};
    int[] to = {R.id.posttitle, R.id.postdesc, R.id.postdate};
    final SimpleAdapter adapter = new SimpleAdapter(getActivity(), aList, R.layout.layoutarray, from, to);
    listView.setAdapter(adapter);

    ref.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            for (DataSnapshot child : dataSnapshot.getChildren()) {

                for (DataSnapshot single : child.getChildren()) {
                    Map<String, Object> map = (Map<String, Object>) single.getValue();

                    namerc = (String) map.get("Namerc");
                    String image = (String) map.get("Imagerc");//IMAGE URI
                    description = (String) map.get("Description");
                    title=(String) map.get("Title");

                    if (namerc!=null && description!=null && title!=null) {
                        String[] title1={title};
                        String[] desc1={description};
                        String[] name1={namerc};

                        Toast.makeText(getActivity(), description, Toast.LENGTH_SHORT).show();

                        for (int i=0;i<title1.length;i++) {
                            HashMap<String, String> hm = new HashMap<String, String>();
                            hm.put("title", title1[i]);
                            hm.put("desc", desc1[i]);
                            hm.put("name", name1[i]);
                            aList.add(0,hm);
                        }
                        // Keys used in Hashmap

                        adapter.notifyDataSetChanged();
                    }
                }
            }
        }

        @Override
        public void onCancelled(FirebaseError firebaseError) {

        }
    });

    return rootView;
}

}

这是我的代码在这里我正在设置值并将其设置为listview但我无法将图像设置为listview。我可以设置它，请帮助我。如何将图像uri设置为listview，这里我从数据库获取uri？

Answer 1

在适配器的getView方法中，您可以像以下其他数据一样设置图像：

Picasso.with(context).load(uri).into(imageView);

你可以在.load（）

中传递url或uri

您可以按照以下教程创建适配器： listview

如何在android中使用picasso将Images（Uri）设置为listview

1 个答案: