Программно созданные TextView не отображаются, когда я запускаю свое приложение. Я пытаюсь загрузить сообщения и человека, отправившего их из Firebase, и отобразить их в отдельных TextView с отправителем TextView сверху. Извините за отсутствие информации, но я не знаю, что я сделал не так.
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);
}
});
Макет:
<?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>
Как выглядит страница при запуске
MessageObj
. - person Alex Mamo   schedule 08.08.2019