just changing subject to be more accurate
On Nov 7, 9:37 am, Brian <[EMAIL PROTECTED]> wrote:
> late reply, but wanted to say thanks, this fixed it. On to my next
> problem:
>
> I'm trying to write my own View class to handle various events, using
> LunarLander as an example. Here's my simple layout and class:
>
> <?xml version="1.0" encoding="utf-8"?>
> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/
> android"
> android:orientation="vertical"
> android:layout_width="fill_parent"
> android:layout_height="fill_parent"
>
> <com.my.package.BoardView
> android:id="@+id/board"
> android:layout_width="fill_parent"
> android:layout_height="fill_parent"/>
>
> <TextView android:id="@+id/TopText"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:text="play area"
> />
> <LinearLayout android:id="@+id/rowButtons"
> android:orientation="horizontal"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> >
> <Button android:id="@+id/btnPlay"
> android:text="Play"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content" />
> <Button android:id="@+id/btnInfo"
> android:text="Info"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content" />
> <Button android:id="@+id/btnSetup"
> android:text="Setup"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content" />
> </LinearLayout>
>
> <TextView android:id="@+id/InfoText"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:text="screen size:"
> />
>
> </LinearLayout>
>
> public class BoardView extends SurfaceView {
>
> public BoardView(Context context, AttributeSet attrs) {
> super(context, attrs);
> }
>
> @Override
> protected void onSizeChanged(int w, int h, int oldw, int oldh) {
> // TODO Auto-generated method stub
> super.onSizeChanged(w, h, oldw, oldh);
>
> TextView info = (TextView) findViewById(R.id.InfoText);
> //info.setText("width : " + w + ", height : " + h);
> }
>
> }
>
> When I first ran it, it blew up with a NPE in onSizeChanged. So at
> least I knew it was getting there. I commented out the info.setText
> line and it ran fine, but the view is blank on the screen. Why are
> the various TextViews and buttons not visible? I couldn't find any
> guidelines in the docs as to how/where to place your View class in the
> layout.xml.
>
> On Nov 3, 5:01 pm, Mark Murphy <[EMAIL PROTECTED]> wrote:
>
> > Brian wrote:
> > > I've gone through the Notepad tutorials and thought I had a grasp of
> > > the basics, but apparently not. I'm trying to create a screen with a
> > > TextView on top with a row of buttons beneath it, but only the
> > > TextView is displaying. The buttons are not. What am I missing?
>
> > You have the TextView height set to fill_parent. Android makes a single
> > pass throughlayoutfiles, so by the time it gets to your buttons, there
> > is no more vertical space available.
>
> > --
> > Mark Murphy (a Commons Guy)http://commonsware.com
> > _The Busy Coder's Guide to Android Development_ Version 1.4 Published!
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