Question

well the problem is that i am using in my activity a kind of a SurfaceView, and i want to add buttons in it.

my questions are:

1) how do i create an instance of a button without calling findViewById(…)? (cause i dont have layout because of the surfaceView)…

2) and how do i draw this button on a canvas?

or maybe you are suggesting doing something else?

all i care is that there will be button on my screen and i can implement something like OnClickListener(…)….

thanks to all in advance !!!

Answer 1

If you draw your button on the canvas (which is possible), it will not be clickable. What you really want is:

• wrap your SurfaceView into a frame layout – if you also add other views to the same layout, they will appear above the SurfaceView;
• add a relative layout to the frame layout mentioned above (so you can position the button and possibly other views – if you only have the button, you might get away with just setting the margins).

Like so:

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/FrameLayout1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >

        <Button
            android:id="@+id/restartButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:onClick="whatever"
            android:text="look, I float above the SurfaceView!" />

    </RelativeLayout>

</FrameLayout>