I have Two Activity A activity and B activity, Inside B activity there is fragment where I have populated it with a list of an item from BlogRecycleadapter class.
When the Internet is not available, In B activity it shows "Check Internet", but when I press back button and move to A activity, Still toast message appears.
How do I hide the Toast message from appearing on First Activity i.e A activity??
My RecycleViewAdapter class is
BlogRecyclerAdapter.java
package com.nepalpolice.cdp;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.PopupWindow;
import android.widget.TextView;
import android.widget.Toast;
import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.firestore.DocumentSnapshot;
import com.google.firebase.firestore.EventListener;
import com.google.firebase.firestore.FieldValue;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.firestore.FirebaseFirestoreException;
import com.google.firebase.firestore.QuerySnapshot;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import de.hdodenhof.circleimageview.CircleImageView;
import static com.android.volley.VolleyLog.TAG;
import static com.nepalpolice.cdp.webfaq.isNetworkStatusAvialable;
public class BlogRecyclerAdapter extends RecyclerView.Adapter<BlogRecyclerAdapter.ViewHolder> {
public List<BlogPost> blog_list;
public Context context;
private FirebaseFirestore firebaseFirestore;
private FirebaseAuth firebaseAuth;
private PopupWindow popWindow;
public BlogRecyclerAdapter(List<BlogPost> blog_list){
this.blog_list = blog_list;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.blog_list_item, parent, false);
context = parent.getContext();
firebaseFirestore = FirebaseFirestore.getInstance();
firebaseAuth = FirebaseAuth.getInstance();
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(final ViewHolder holder, int position) {
holder.setIsRecyclable(false);
final String blogPostId = blog_list.get(position).BlogPostId;
final String currentUserId = firebaseAuth.getCurrentUser().getUid();
String desc_data = blog_list.get(position).getDesc();
holder.setDescText(desc_data);
String image_url = blog_list.get(position).getImage_url();
String thumbUri = blog_list.get(position).getImage_thumb();
holder.setBlogImage(image_url, thumbUri);
String user_id = blog_list.get(position).getUser_id();
//User Data will be retrieved here...
firebaseFirestore.collection("Users").document(user_id).get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if(task.isSuccessful()){
String userName = task.getResult().getString("name");
String userImage = task.getResult().getString("image");
holder.setUserData(userName, userImage);
} else {
//Firebase Exception
}
}
});
try {
long millisecond = blog_list.get(position).getTimestamp().getTime();
String dateString = DateFormat.format("MM/dd/yyyy", new Date(millisecond)).toString();
holder.setTime(dateString);
} catch (Exception e) {
Toast.makeText(context, "Exception : " + e.getMessage(), Toast.LENGTH_SHORT).show();
}
//Get Likes Count
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").addSnapshotListener(((Main2Activity) context),new EventListener<QuerySnapshot>() {
@Override
public void onEvent(QuerySnapshot documentSnapshots, FirebaseFirestoreException e) {
if (e!=null) {
Log.w(TAG, "listening failed",e);
return;
}
if(!documentSnapshots.isEmpty()){
int count = documentSnapshots.size();
holder.updateLikesCount(count);
} else {
holder.updateLikesCount(0);
}
}
});
if (InternetStatus.getInstance(holder.blogLikeBtn.getContext()).isOnline()) {
//Get Likes
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).addSnapshotListener(((Main2Activity) context), new EventListener<DocumentSnapshot>() {
@Override
public void onEvent(DocumentSnapshot documentSnapshot, FirebaseFirestoreException e) {
if (e != null) {
Log.w(TAG, "listening failed", e);
return;
}
if (documentSnapshot.exists()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
holder.blogLikeBtn.setImageDrawable(context.getDrawable(R.mipmap.action_like_accent));
} else {
holder.blogLikeBtn.setImageDrawable(context.getResources().getDrawable(R.mipmap.action_like_accent));
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
holder.blogLikeBtn.setImageDrawable(context.getDrawable(R.mipmap.action_like_gray));
} else {
holder.blogLikeBtn.setImageDrawable(context.getResources().getDrawable(R.mipmap.action_like_gray));
}
}
}
});
}else{
Toast.makeText(context, "Check Internet", Toast.LENGTH_SHORT).show();
}
//Likes Feature
if (InternetStatus.getInstance(holder.blogLikeBtn.getContext()).isOnline()) {
holder.blogLikeBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if(!task.getResult().exists()){
Map<String, Object> likesMap = new HashMap<>();
likesMap.put("timestamp", FieldValue.serverTimestamp());
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).set(likesMap);
} else {
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).delete();
}
}
});
}
});
}else{
Toast.makeText(context, "Check Internet", Toast.LENGTH_SHORT).show();
}
if (InternetStatus.getInstance(holder.blogCommentBtn.getContext()).isOnline()) {
holder.blogCommentBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent commentIntent = new Intent(context, CommentsActivity.class);
context.startActivity(commentIntent);
}
});
}else{
Toast.makeText(context, "Check Internet", Toast.LENGTH_SHORT).show();
}
}
@Override
public int getItemCount() {
return blog_list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
private View mView;
private TextView descView;
private ImageView blogImageView;
private TextView blogDate;
private TextView blogUserName;
private CircleImageView blogUserImage;
private ImageView blogLikeBtn;
private TextView blogLikeCount;
private ImageView blogCommentBtn;
public ViewHolder(View itemView) {
super(itemView);
mView = itemView;
blogLikeBtn = mView.findViewById(R.id.blog_like_btn);
blogCommentBtn = mView.findViewById(R.id.blog_comment_icon);
}
public void setDescText(String descText){
descView = mView.findViewById(R.id.blog_desc);
descView.setText(descText);
}
public void setBlogImage(String downloadUri, String thumbUri){
blogImageView = mView.findViewById(R.id.blog_image);
RequestOptions requestOptions = new RequestOptions();
requestOptions.placeholder(R.drawable.image_placeholder);
if (!((Activity) context).isFinishing()) {
Glide.with(context).applyDefaultRequestOptions(requestOptions).load(downloadUri).thumbnail(
Glide.with(context).load(thumbUri)
).into(blogImageView);
}
}
public void setTime(String date) {
blogDate = mView.findViewById(R.id.blog_date);
blogDate.setText(date);
}
public void setUserData(String name, String image) {
blogUserImage = mView.findViewById(R.id.blog_user_image);
blogUserName = mView.findViewById(R.id.blog_user_name);
blogUserName.setText(name);
RequestOptions placeholderOption = new RequestOptions();
placeholderOption.placeholder(R.drawable.profile_placeholder);
if (!((Activity) context).isFinishing()) {
Glide.with(context).applyDefaultRequestOptions(placeholderOption).load(image).into(blogUserImage);
}
}
public void updateLikesCount(int count){
blogLikeCount = mView.findViewById(R.id.blog_like_count);
blogLikeCount.setText(count + " Likes");
}
}
}
My MainActivity class is
package com.nepalpolice.cdp;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
final Context context = this;
private boolean exit = false;
Dialog dialog;
private Menu mymenu;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
Fragment fragment = new main();
getSupportFragmentManager().beginTransaction()
.replace(R.id.fragment_frame, fragment, fragment.getClass().getSimpleName()).addToBackStack(null).commit();
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
//Create Dialog
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
mymenu = menu;
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.action_refresh:
Intent intent = new Intent(MainActivity.this, UpdateService.class);
startService(intent);
LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ImageView iv = (ImageView)inflater.inflate(R.layout.iv_refresh, null);
Animation rotation = AnimationUtils.loadAnimation(this, R.anim.rotate_refresh);
rotation.setRepeatCount(Animation.INFINITE);
iv.startAnimation(rotation);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
item.setActionView(iv);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.CUPCAKE) {
new UpdateTask(this).execute();
}
return true;
}
return super.onOptionsItemSelected(item);
}
public void resetUpdating()
{
// Get our refresh item from the menu
MenuItem m = mymenu.findItem(R.id.action_refresh);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
if(m.getActionView()!=null)
{
// Remove the animation.
m.getActionView().clearAnimation();
m.setActionView(null);
}
}
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.store) {
String url = "https://play.google.com/store/apps/developer?id=Sagar%20Rawal&hl=en";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
} else if (id == R.id.contact) {
Intent activity_about = new Intent(this, profile.class);
startActivity(activity_about);
}
else if (id == R.id.tetris) {
Intent activity_about = new Intent(this, MenuActivity.class);
startActivity(activity_about);
}
else if (id == R.id.tictac) {
Intent activity_about = new Intent(this, MainMenuScreen.class);
startActivity(activity_about);
}
else if (id == R.id.home) {
main fragment = new main();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_frame, fragment, "Main");
fragmentTransaction.commit();
fragmentTransaction.addToBackStack(null);
}
else if (id == R.id.email) {
Intent activity_about = new Intent(this, Sendemail.class);
startActivity(activity_about);
} else if (id == R.id.call) {
Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:+9779868336847"));
startActivity(intent);
} else if (id == R.id.share) {
Intent intent = new Intent(android.content.Intent.ACTION_SEND);
intent.setType("text/pl" +
"ain");
String shareBodyText = "Your shearing message goes here";
intent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject/Title");
intent.putExtra(android.content.Intent.EXTRA_TEXT, shareBodyText);
startActivity(Intent.createChooser(intent, "Share Via"));
} else if (id == R.id.rate) {
try {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("market://details?id=com.nepalpolice.mnemonics&hl=en" + getPackageName())));
}
catch (android.content.ActivityNotFoundException anfe) {
startActivity(new Intent(Intent.ACTION_VIEW,
(Uri.parse("https://play.google.com/store/apps/details?id=com.faraksoch.sagar.eroutine&hl=en"))));
}
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
@Override
public void onBackPressed() {
if (exit)
new AlertDialog.Builder(this)
.setTitle("Really Exit?")
.setMessage("Are you sure you want to exit?")
.setNegativeButton(android.R.string.no, null)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
// MainActivity.super.onBackPressed();
finish();
moveTaskToBack(true);
}
}).create().show();
else {
FragmentManager fm = getSupportFragmentManager();
fm.popBackStack();
if (getSupportFragmentManager().getBackStackEntryCount() ==1) {
finish();
}
exit = true;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
exit = false;
}
}, 800);
}
}
}Thanks in advance.
What's happening is that you have three places in your activity where you call this:
InternetStatus.getInstance(holder.blogLikeBtn.getContext()).isOnline()
If you do not have internet, you will call this line of code three times, and the three toasts will be created that appear sequentially; one after another:
Toast.makeText(context, "Check Internet", Toast.LENGTH_SHORT).show();
You should try and consolidate your code so that the toast is only shown one time. Consider the following code:
if (InternetStatus.getInstance(holder.blogLikeBtn.getContext()).isOnline()) {
//Get Likes
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).addSnapshotListener(((Main2Activity) context), new EventListener<DocumentSnapshot>() {
@Override
public void onEvent(DocumentSnapshot documentSnapshot, FirebaseFirestoreException e) {
if (e != null) {
Log.w(TAG, "listening failed", e);
return;
}
if (documentSnapshot.exists()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
holder.blogLikeBtn.setImageDrawable(context.getDrawable(R.mipmap.action_like_accent));
} else {
holder.blogLikeBtn.setImageDrawable(context.getResources().getDrawable(R.mipmap.action_like_accent));
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
holder.blogLikeBtn.setImageDrawable(context.getDrawable(R.mipmap.action_like_gray));
} else {
holder.blogLikeBtn.setImageDrawable(context.getResources().getDrawable(R.mipmap.action_like_gray));
}
}
}
});
holder.blogLikeBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() {
@Override
public void onComplete(@NonNull Task<DocumentSnapshot> task) {
if(!task.getResult().exists()){
Map<String, Object> likesMap = new HashMap<>();
likesMap.put("timestamp", FieldValue.serverTimestamp());
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).set(likesMap);
} else {
firebaseFirestore.collection("Posts/" + blogPostId + "/Likes").document(currentUserId).delete();
}
}
});
}
});
holder.blogCommentBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent commentIntent = new Intent(context, CommentsActivity.class);
context.startActivity(commentIntent);
}
});
}else{
Toast.makeText(context, "Check Internet", Toast.LENGTH_SHORT).show();
}
}