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I am working on a calculator where on the "screen" the left part shows the symbol + - * / and the right shows the digits. The size of the symbol cannot be too small, but when the user presses for the symbol and the symbol shows e.g. +, the figures on the right will shift rightwards a bit in order to accomodate the symbol.
The figure on the right keep shifting rightwards when have symbol while back to its place when no symbols. Also, the symbol cannot be shown properly. This is frustrating.
Yet I would like to maintain that the symbol and the figures be maintained within 1 row such that it really looks like calculator. How could this be handled? The layout code is as follows. Thanks in advance!!!!
<TableRow
android:id="#+id/tableRow3"
android:layout_weight="0.1"
android:background="#android:color/white"
android:paddingLeft="0dp"
android:paddingRight="0dp" >
<EditText
android:id="#+id/symEditText"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="left"
android:layout_span="1"
android:background="#android:color/transparent"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:gravity="right|center_vertical"
android:inputType="numberDecimal"
android:longClickable="false"
android:maxLength="3"
android:paddingRight="0dp"
android:text=""
android:textColor="#003366"
android:textSize="14dp"
android:textStyle="bold" >
</EditText>
<EditText
android:id="#+id/ansEditText"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="right"
android:layout_span="9"
android:background="#android:color/transparent"
android:clickable="false"
android:ems="4"
android:focusable="false"
android:focusableInTouchMode="false"
android:gravity="right|center_vertical"
android:inputType="numberDecimal"
android:longClickable="false"
android:maxLength="23"
android:paddingRight="20dp"
android:textColor="#003366"
android:textSize="#dimen/display_text_size"
android:textStyle="bold" >
<requestFocus />
</EditText>
</TableRow>

You should only use TableRow inside a TableLayout. I think you can just use a horizontal LinearLayout instead. If you want to always maintain a space to show a symbol, give that view a fixed width instead of using wrap_content, otherwise it will grow/shrink when the content changes. (make sure to specify your width in dp units)
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/symbol"
android:layout_width="20dp" <!-- fixed size -->
android:layout_height="wrap_content"
<!-- more attributes -->
</TextView>
<TextView
android:id="#+id/answer"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" <!-- fill remaining space -->
android:gravity="right"
<!-- more attributes -->
</TextView>
</LinearLayout>