The size of a Spinner set have android:layout_width="wrap_content" is determined by its content. If you want things ellipsized, that's up to you in your SpinnerAdapter, when you create your row Views.
Or, hard-wire an android:layout_width that is fixed in size.
Or, instead of using LinearLayout, use RelativeLayout and structure your rules such that the Spinner takes up the remaining space on the row, by anchoring it to the left side of the screen and to the left side of the first EditText. Though I'm not 100% certain what then happens if the content is too big -- it probably just gets truncated.

The size of a `Spinner` set have `android:layout_width="wrap_content"` is determined by its content. If you want things ellipsized, that's up to you in your `SpinnerAdapter`, when you create your row Views.
Or, hard-wire an `android:layout_width` that is fixed in size.
Or, instead of using `LinearLayout`, use `RelativeLayout` and structure your rules such that the `Spinner` takes up the remaining space on the row, by anchoring it to the left side of the screen and to the left side of the first `EditText`. Though I'm not 100% certain what then happens if the content is too big -- it probably just gets truncated.