I started to do some basic Android App development in Android Studio. Now I am facing a bigger problem:
When I drag an Element (e.g. Button) to the Designer view, the Element does not appear (or is invisible). In the Text passage it's present, but does not show up in the Design view.
The generated text looks like this
<Button
android:id="@+id/loginBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
tools:layout_editor_absoluteX="91dp"
tools:layout_editor_absoluteY="380dp" />
<EditText
android:id="@+id/nameText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:text="Name"
tools:layout_editor_absoluteX="228dp"
tools:layout_editor_absoluteY="428dp" />
<EditText
android:id="@+id/passwordText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPassword"
tools:layout_editor_absoluteX="16dp"
tools:layout_editor_absoluteY="220dp" />