UserAdapter.java：
public class UsersAdapter extends RecyclerView.Adapter<UsersAdapter.UsersViewHolder> {
private List<Users> usersList;
private ImageLoader imageLoader = AppController.getInstance().getImageLoader();
private Context mContext;
public class UsersViewHolder extends RecyclerView.ViewHolder {
public TextView txtUsername, txtCreatedAt;
public NetworkImageView imgUser;
public ImageButton btnMsg, btnDel;
public UsersViewHolder(View view) {
super(view);
txtUsername = (TextView) view.findViewById(R.id.txt_username);
txtCreatedAt = (TextView) view.findViewById(R.id.txt_created_at);
imgUser = (NetworkImageView) view.findViewById(R.id.img_user);
btnMsg = (ImageButton) view.findViewById(R.id.btn_msg);
btnDel = (ImageButton) view.findViewById(R.id.btn_delete);
}
}
public UsersAdapter(Context context, List<Users> usersList) {
mContext = context;
this.usersList = usersList;
}
@Override
public UsersViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.users_list_row, parent, false);
return new UsersViewHolder(itemView);
}
@Override
public void onBindViewHolder(UsersViewHolder holder, int position) {
Users users = usersList.get(position);
holder.txtUsername.setText(users.getUserName() + " " + users.getUserSurname());
holder.txtCreatedAt.setText(users.getCreatedAt());
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
holder.imgUser.setImageUrl(users.getUserImgPath(), imageLoader);
holder.btnMsg.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(mContext, "Clicked", Toast.LENGTH_SHORT);
}
});
}
@Override
public int getItemCount() {
return usersList.size();
}
}
AppliersActivity：
public class AppliersActivity extends AppCompatActivity {
private static final String TAG = AppliersActivity.class.getSimpleName();
private SQLiteHandler db;
private SessionManager session;
private ProgressDialog pDialog;
private String uid, api_key, adId;
private List<Users> usersList = new ArrayList<>();
private RecyclerView recyclerView;
private UsersAdapter mAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_appliers);
definitions();
getAppliers();
}
private void definitions() {
adId = getIntent().getStringExtra("adId");
// Progress dialog
pDialog = new ProgressDialog(this);
pDialog.setCancelable(false);
// SqLite database handler
db = new SQLiteHandler(getApplicationContext());
// session manager
session = new SessionManager(getApplicationContext());
if (!session.isLoggedIn()) {
logoutUser();
}
// Fetching user details from sqlite
HashMap<String, String> user = db.getUserDetails();
uid = user.get("uid");
api_key = user.get("api_key");
recyclerView = (RecyclerView) findViewById(R.id.appliers_recycler_view);
mAdapter = new UsersAdapter(getApplicationContext(), usersList);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.VERTICAL));
recyclerView.setAdapter(mAdapter);
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getApplicationContext(), recyclerView, new OnTouchActionListener() {
@Override
public void onLeftSwipe(View view, int position) {
}
@Override
public void onRightSwipe(View view, int position) {
}
@Override
public void onClick(View view, int position) {
String adId = usersList.get(position).getUserId();
}
}));
}
public static interface OnTouchActionListener {
public void onLeftSwipe(View view, int position);
public void onRightSwipe(View view, int position);
public void onClick(View view, int position);
}
public static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private OnTouchActionListener mOnTouchActionListener;
private GestureDetectorCompat mGestureDetector;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, OnTouchActionListener onTouchActionListener) {
mOnTouchActionListener = onTouchActionListener;
mGestureDetector = new GestureDetectorCompat(context,new GestureDetector.SimpleOnGestureListener(){
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(), e.getY());
if (child != null && mOnTouchActionListener != null && mGestureDetector.onTouchEvent(e)) {
mOnTouchActionListener.onClick(child, rv.getChildPosition(child));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
private void getAppliers() {
// Tag used to cancel the request
String tag_string_req = "req_appliers";
pDialog.setMessage("Lütfen Bekleyin...");
showDialog();
StringRequest strReq = new StringRequest(Request.Method.GET,
ApiRoutes.URL_JOB_APPLIERS+ "/" + adId, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Appliers Response: " + response.toString());
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
usersList.clear();
mAdapter.notifyDataSetChanged();
JSONArray usersArray = jObj.getJSONArray("appliers");
Users users;
for (int i = 0; i < usersArray.length(); i++) {
JSONObject jsonobject = usersArray.getJSONObject(i);
users = new Users(jsonobject.getString("uid"), jsonobject.getString("name"), jsonobject.getString("surname"), ApiRoutes.FOLDER_IMG + "/" + jsonobject.getString("uid") + "/profile_img.png", jsonobject.getString("created_at"));
usersList.add(users);
}
mAdapter.notifyDataSetChanged();
} else {
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Json error: " + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "User Ads Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<>();
headers.put("Authorization", api_key);
return headers;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
/**
* Logging out the user. Will set isLoggedIn flag to false in shared
* preferences Clears the user data from sqlite users table
* */
private void logoutUser() {
session.setLogin(false);
db.deleteUsers();
// Launching the login activity
Intent intent = new Intent(this, LoginActivity.class);
startActivity(intent);
finish();
}
}
我在recyclerviewer的行上有两个图像按钮。我想为每一行添加click事件。我将applicationcontext从activity发送到适配器。我在适配器类中添加了onclicklistener事件。但它并没有在屏幕上显示吐司。我该如何解决这个问题？
答案 0 :(得分：2)
您不要在适配器类中调用Toast的show（）方法。
将其更改为以下
(lldb) br set -r '.*a_really_unique_name.*'