Programmatically created TextViews aren't appearing when I run my app. I am trying to download messages and the person that sent them from Firebase and display them in separate TextViews with the sender TextView on top. Sorry for the lack of information, but I don't know what I've done wrong.
db.collection("messagesIT")
.orderBy("Timesent", Query.Direction.DESCENDING)
.get()
.addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
@Override
public void onComplete(@NonNull Task<QuerySnapshot>task) {
if (task.isSuccessful()) {
ArrayList<MessageObj> messages = new ArrayList<>();
for (QueryDocumentSnapshot document : task.getResult())
String message = document.getString("Message");
String sender = document.getString("Sender");
Timestamp timesent = document.getTimestamp("Timesent");
MessageObj mess = new MessageObj(message, sender, timesent);
messages.add(mess);
Log.d(TAG, "m: " + mess.getMessage());
Log.d(TAG, "s: " + mess.getSender());
Log.d(TAG, "t:" + mess.getTimesent());
showToast("b");
}
TableLayout tl = findViewById(R.id.TableLayoutSubjectGroupPage);
//reading and displaying messages
for (int i = 0; i < messages.size(); i++) {
TableRow trMessage = new TableRow(SubjectGroupPage.this);
TableRow trSender = new TableRow(SubjectGroupPage.this);
TextView txtSender = new TextView(SubjectGroupPage.this);
TextView txtMessage = new TextView(SubjectGroupPage.this);
Log.d(TAG, "uv8iygv iyrtgcvfi8ytgvcrcccccccccccccccccccccccccccc");
LinearLayout.LayoutParams Weight = new LinearLayout.LayoutParams(0, TableRow.LayoutParams.WRAP_CONTENT, 1);
txtSender.setText(messages.get(i).getSender());
txtSender.setLayoutParams(Weight);
txtMessage.setText(messages.get(i).getMessage());
txtMessage.setLayoutParams(Weight);
txtMessage.setTextSize(20);
txtMessage.setTextColor(Color.parseColor("#000000"));
if (messages.get(i).getSender().equals(currentUser.getUid())) {
txtMessage.setTextAlignment(View.TEXT_ALIGNMENT_TEXT_END);
txtSender.setTextAlignment(View.TEXT_ALIGNMENT_TEXT_END);
} else {
txtMessage.setTextAlignment(View.TEXT_ALIGNMENT_TEXT_START);
txtSender.setTextAlignment(View.TEXT_ALIGNMENT_TEXT_START);
}
//creating message display
trSender.addView(txtSender);
trMessage.addView(txtMessage);
tl.addView(trSender);
tl.addView(trMessage);
}
} else {
Log.d(TAG, "Error getting documents: ", task.getException());
}
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
showToast("There has been an error, please try again later.");
Log.d(TAG, "Error: " + e);
}
});
Layout:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/txtUsernameAdminStudentPage"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SubjectGroupPage">
<ScrollView
android:id="@+id/scrollviewMessages"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/linearLayoutMessageInput"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent">
<TableLayout
android:id="@+id/TableLayoutSubjectGroupPage"
android:layout_width="match_parent"
android:layout_height="wrap_content">
//these were tests for how I want the TextViews
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/txtExample"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:textColor="#000000"
android:textSize="20dp" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView5"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:textAlignment="textEnd" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/txtExample2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:textAlignment="textEnd"
android:textColor="#000000"
android:textSize="20dp"
tools:layout_editor_absoluteY="675dp" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView7"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:textAlignment="textEnd" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:textAlignment="textEnd"
android:textColor="#000000"
android:textSize="20dp" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:textColor="#000000"
android:textSize="20sp" />
</TableRow>
</TableLayout>
</ScrollView>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
What the page looks like when run
