如何动态更改TextView宽度

Question

I have a TextView1, buttons1 and buttons2 Horizontally. When Button2 click Button1 is invisible. When Button1 is invisible, I need to increase the width of the textview to cover the space created when button1 is invisible and vice versa. Can Please anybody help How can I change the Textview width dynamically.

NB: Textview tv.setWidth(pix) is not working. when I tried to find the value of tv.getWidth() gives always zero.

Answer 1

Please try to use GONE instead of using INVISIBLE. When using INVISIBLE even though you can't see it, it still takes a space.

Answer 2

`

    <TextView
        android:layout_width="odp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="@string/hello" />

    <Button
        android:id="@+id/btn1"
        android:layout_width="odp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="@string/hello"
        android:visibility="visible" />

    <Button
        android:id="@+id/btn2"
        android:layout_width="odp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="@string/hello" />
</LinearLayout>`you can use weight for three element and button1.setVisibility(View.GONE)

Answer 3

Wrap your widgets in a RelativeLayout and then check. You will be able to bring your textview on top of your button if it is invisble. You cant do this if you are using LinearLayout because it sets widgets horizontaly or verticaly and does not overlap.