The view element name in your XML needs to be entirely lower case, not
capitalized. Should be "view", not "View". Capitalized gives you an
android.view.View instance, not your subclass.
On an unrelated note, I'm actually surprised what you posted isn't
crashing on the lack of android:layout_width and android:layout_height
attributes first.
On Sep 24, 10:34 am, jdekeij <jasper.dekeij...@gmail.com> wrote:
> Hoi
>
> I try to create my custom view inside a linearlayout. For example
>
> <View android:id="@+id/ViewPaint"
> class="com.example.android.helloactivity.HelloActivity$DrawingView"/>
>
> In the java source I created a DrawingView class which extends View.
> Unfortunatly it does not get instantiated. I tried to overwrite the
> ondraw() but without success :-(
>
> Help is very much appreciated.
> Jasper
>
> Java Code
> public static class DrawingView extends View
> {
> private final Paint mPaint;
> /*
> * Constructor that is called when inflating a view from XML.
> */
> DrawingView(Context context, AttributeSet attrs){
> super(context,attrs);
>
> mPaint = new Paint();
> mPaint.setAntiAlias(true);
> mPaint.setARGB(255, 255, 255, 255);
> }
>
> @Override
> protected void onDraw(Canvas canvas) {
> float yPos;
> float xPos;
> int xOffset = 20;
> int yOffset = 50;
> int cxScreen = canvas.getWidth();
> int cyScreen = canvas.getHeight();
> int cx = cxScreen - (2*xOffset);
> int cy = cyScreen - (2*yOffset);
> int cxStepSize = cx/10 - 1;
> int cyStepSize = cy/10 - 1;
>
> // Makes the complete screen white!
> //canvas.drawColor(0xFFFFFFFF);
> yPos = (float)yOffset;
> xPos = (float)xOffset;
> for (int i=0; i <= 10; i++)
> { // xstart, ystrt,xend,yend
> canvas.drawLine((float)xOffset, yPos, (float)cx, (float)
> yPos, mPaint);
> yPos += cyStepSize;
> }
> for (int i=0; i <= 10; i++)
> { // xstart, ystrt,xend,yend
>
> canvas.drawLine((float)xPos, (float)yOffset, (float)xPos,
> (float)cy, mPaint);
> xPos += cxStepSize;
> }
> }
> }
>
> XML:
> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/
> android"
> android:orientation="vertical"
> android:padding="10dip"
> android:layout_width="fill_parent"
> android:layout_height="wrap_content">
>
> <TextView
> android:layout_width="fill_parent"
> android:layout_height="wrap_content"
> android:layout_marginTop="10dip"
> android:text="Please select a planet:"
> />
>
> <Spinner
> android:id="@+id/spinner"
> android:layout_width="fill_parent"
> android:layout_height="wrap_content"
> android:drawSelectorOnTop="true"
> android:prompt="@string/planet_prompt"
> />
> <TextView android:id="@+id/dateDisplay"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:text="No date yet"/>
>
> <Button android:id="@+id/pickDate"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:text="Change the date"/>
>
> <TextView android:id="@+id/timeDisplay"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:text="No time yet"/>
>
> <Button android:id="@+id/pickTime"
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:text="Verander the time"/>
>
> <View android:id="@+id/ViewPaint"
> class="com.example.android.helloactivity.HelloActivity$DrawingView"/>
> </LinearLayout>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
-~----------~----~----~----~------~----~------~--~---
