Question

I have a dialog, which is created with this code:

final Dialog dialog1 = new Dialog(Test.this);
dialog1.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog1.setContentView(R.layout.test_layout);
dialog1.setCancelable(true);
...

The layout file ‘test_layout.xml’ contains a typical TextView:

<TextView
    android:id="@+id/tv_username"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingLeft="10dp"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:text="Test" />

I want in the code to set this TextView invisible (gone) in some cases.
I tried following:

TextView tv = (TextView) dialog1.findViewById(R.id.tv_username);
tv.setVisibility(TextView.GONE);

But the TextView still appears in the dialog. If I set in the layout xml file android:visibility=”gone” it is not appearing in the dialog. But I need to do it via code.

Here the whole code:

    if (whichButton == 1) {

           final Dialog dialog1 = new Dialog(Test.this);
                                       dialog1.requestWindowFeature(Window.FEATURE_NO_TITLE);
            dialog1.setContentView(R.layout.test_layout);
            dialog1.setCancelable(true);

            TextView tv = (TextView) dialog1.findViewById(R.id.tv_username);
            tv.setVisibility(View.GONE);


        ...
        dialog1.show();
}

Here the whole XML file:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="250dp"
    android:layout_height="match_parent"
>
    <TextView
        android:id="@+id/tv_name"
        android:paddingTop="10dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="15dp"
        android:textSize="14dp"
        android:text="Name:" />
    <EditText
        android:id="@+id/username"
        android:hint="@string/enterName"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:maxLength="15"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:scrollHorizontally="true"
        android:capitalize="words"
        android:singleLine="true"
        android:gravity="fill_horizontal"
        android:textAppearance="?android:attr/textAppearanceMedium" />
    <TextView
        android:id="@+id/tv_username"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="10dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Test" />
    <TextView
        android:id="@+id/tv_message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="15dp"
        android:textSize="14dp"
        android:text="@string/message" />
    <EditText
        android:id="@+id/tip"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:maxLength="290"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:scrollbars="vertical"
        android:inputType="textMultiLine"
        android:capitalize="words"
        android:gravity="fill_horizontal"
        android:textAppearance="?android:attr/textAppearanceMedium" />
    <Button
        android:id="@+id/button"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/send_message" />
</LinearLayout>

Answer 1

I found a solution or workaround.

The dialog was created in the the onClick method of an AlertDialog.

Now I use the showDialog() method and handle it in the corresponding callback method.
There it is working fine.

I do not understand why this is working, but I only want to tell other users how they can solve this issue.

I would be happy if someone can come up with a clarification.