android值使用recyclerview从片段传递到片段不起作用 [英] android value passing from fragment to fragment using recyclerview not working
本文介绍了android值使用recyclerview从片段传递到片段不起作用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在开发一个应用,我希望将值从一个片段传递到另一个片段.在这里,我正在使用Recyclerview适配器.我的代码如下所示.
I am developing an app i want to pass value from one fragment to another fragment. Here i am using Recyclerview Adapter. My code is shown below.
FriendsFragment.java
FriendsFragment.java
public class FriendsFragment extends android.support.v4.app.Fragment {
List<GetDataAdapter> GetDataAdapter1;
RecyclerView recyclerView;
RecyclerView.LayoutManager recyclerViewlayoutManager;
RecyclerView.Adapter recyclerViewadapter;
String GET_JSON_DATA_HTTP_URL = "http://192.168.43.7/work/ecom/2/1.php";
String JSON_IMAGE_TITLE_NAME = "image_title";
String JSON_IMAGE_URL = "image_url";
String JSON_IMAGE_ID = "id";
JsonArrayRequest jsonArrayRequest ;
RequestQueue requestQueue ;
public FriendsFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_friends, container, false);
GetDataAdapter1 = new ArrayList<>();
recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerview1);
recyclerView.setHasFixedSize(true);
recyclerViewlayoutManager = new LinearLayoutManager(getContext());
recyclerView.setLayoutManager(recyclerViewlayoutManager);
JSON_DATA_WEB_CALL();
// Inflate the layout for this fragment
return rootView;
}
public void JSON_DATA_WEB_CALL(){
jsonArrayRequest = new JsonArrayRequest(GET_JSON_DATA_HTTP_URL,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d("LOGTAG", "Response :"+response);
JSON_PARSE_DATA_AFTER_WEBCALL(response);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
});
requestQueue = Volley.newRequestQueue(getContext());
requestQueue.add(jsonArrayRequest);
}
public void JSON_PARSE_DATA_AFTER_WEBCALL(JSONArray array){
for(int i = 0; i<array.length(); i++) {
GetDataAdapter GetDataAdapter2 = new GetDataAdapter();
JSONObject json = null;
try {
json = array.getJSONObject(i);
GetDataAdapter2.setImageTitleNamee(json.getString(JSON_IMAGE_TITLE_NAME));
GetDataAdapter2.setImageServerUrl(json.getString(JSON_IMAGE_URL));
GetDataAdapter2.setImageId(json.getString(JSON_IMAGE_ID));
} catch (JSONException e) {
e.printStackTrace();
}
GetDataAdapter1.add(GetDataAdapter2);
}
recyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1, getContext());
recyclerView.setAdapter(recyclerViewadapter);
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
@Override
public void onDetach() {
super.onDetach();
}
}
RecyclerViewAdapter.java
RecyclerViewAdapter.java
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
static String categoryId;
Context context;
List<GetDataAdapter> getDataAdapter;
ImageLoader imageLoader1;
private final View.OnClickListener mOnClickListener = new MyOnClickListener();
public RecyclerViewAdapter(List<GetDataAdapter> getDataAdapter, Context context){
super();
this.getDataAdapter = getDataAdapter;
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_items, parent, false);
v.setOnClickListener(mOnClickListener);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder Viewholder, int position) {
GetDataAdapter getDataAdapter1 = getDataAdapter.get(position);
Viewholder.ImageTitleNameView.setText(getDataAdapter1.getImageTitleName());
imageLoader1 = ServerImageParseAdapter.getInstance(context).getImageLoader();
imageLoader1.get(getDataAdapter1.getImageServerUrl(),
ImageLoader.getImageListener(
Viewholder.networkImageView,//Server Image
R.mipmap.ic_launcher,//Before loading server image the default showing image.
android.R.drawable.ic_dialog_alert //Error image if requested image dose not found on server.
)
);
Viewholder.networkImageView.setImageUrl(getDataAdapter1.getImageServerUrl(), imageLoader1);
}
@Override
public int getItemCount() {
return getDataAdapter.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
public TextView ImageTitleNameView;
public TextView imageid;
public NetworkImageView networkImageView ;
public CardView cardView ;
public ViewHolder(final View itemView) {
super(itemView);
ImageTitleNameView = (TextView) itemView.findViewById(R.id.textView_item) ;
networkImageView = (NetworkImageView) itemView.findViewById(R.id.VollyNetworkImageView1);
cardView = (CardView) itemView.findViewById(R.id.cardview1);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int pos = getAdapterPosition();
Bundle bundle=new Bundle();
bundle.putString("message", "From Activity");
MessagesFragment fragobj=new MessagesFragment();
fragobj.setArguments(bundle);
}
});
}
}
private class MyOnClickListener implements View.OnClickListener {
@Override
public void onClick(View v) {
GetDataAdapter getDataAdapter = new GetDataAdapter();
TextView textView = (TextView) v.findViewById(R.id.textView_item) ;
}
}
}
GetAdapter.java
GetAdapter.java
public class GetDataAdapter {
public String ImageServerUrl;
public String ImageTitleName;
public String ImageId;
public String getImageServerUrl() {
return ImageServerUrl;
}
public void setImageServerUrl(String imageServerUrl) {
this.ImageServerUrl = imageServerUrl;
}
public String getImageTitleName() {
return ImageTitleName;
}
public void setImageTitleNamee(String Imagetitlename) {
this.ImageTitleName = Imagetitlename;
}
public String getImageId() {
return ImageId;
}
public void setImageId(String ImageId) {
this.ImageId = ImageId;
}
}
SampleHolder.java
SampleHolder.java
public class SampleHolder extends RecyclerView.ViewHolder {
public SampleHolder(View itemView) {
super(itemView);
}
}
when i using
Bundle bundle=new Bundle();
bundle.putString("message", "From Activity");
//set Fragmentclass Arguments
MessagesFragment fragobj=new MessagesFragment();
fragobj.setArguments(bundle);
它没有将值传递给消息片段或没有传递给消息片段.
it is not passing value to message fragment or not going to message fragment.
有什么可能帮助我.
推荐答案
在您的Adapter类中尝试以下操作:
try this in your Adapter class:
//in On click
MessagesFragment fragobj=new MessagesFragment();
Bundle bundle=new Bundle()
bundle.putString("message", "From Activity");
fragobj.setArguments(mBundle);
switchFragment(R.id.container, fragobj); //replace container ID
public void switchFragment(int id, Fragment fragment) {
if (context == null)
return;
//MainActivity is your activity where FriendsFragment is called
if (context instanceof MainActivity) {
MainActivity mainActivity = (MainActivity) context;
mainActivity.loadFragment(id, fragment);
}
}
现在在您的活动中编写以下代码:
now in your activity write this code:
public void loadFragment(int id, Fragment fragment) {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(id, fragment, fragment.toString());
ft.addToBackStack(null);
ft.commit();
}
这篇关于android值使用recyclerview从片段传递到片段不起作用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文