See the Android Canvas class:
http://developer.android.com/reference/android/graphics/Canvas.html
And redrawing at approx 7 frames a second (150ms) there should be no
problem. To refresh at 30fps or faster a suggest you adapt your your code
to use OpenGL ES 2.0.
On Sunday, December 1, 2013 4:18:18 PM UTC, toki wrote:
>
> Hello,
>
> i am developing a game where something happens with some objects in one
> thread and the situation is painted every 150 ms. Currenty I experimented
> with painting on a java.awt.Canvas, which works fine.
>
> But now I would like to paint in android instead. I am looking for some
> tips how to start this.
>
> In android I have seen an example where you can paint on a
> android.view.View. However, I don't know, if it would perform well, if I
> paint there like I did on the java.awt.Cavas.
>
> I attach my painting on the java.awt.Canvas for better understanding.
>
> br
> Tobias
>
> [code]
> public void paint(Graphics g) {
>
> if (offscreen == null) {
> offscreenImage = this
> .createImage(getSize().width, getSize().height);
> offscreen = offscreenImage.getGraphics();
> }
>
>
>
> // Felder
> offscreen.setColor(colBG);
> for (int x = 0; x < this.spielfeld.WIDTH; x++) {
> for (int y = 0; y < this.spielfeld.HEIGHT; y++)
>
> offscreen.fillRect(x * fieldSize, y * fieldSize, fieldSize,
> fieldSize);
> }
>
> // Hindernisse
> for (Iterator<Objekt> oiter = spielfeld.getObjekte().iterator();
> oiter.hasNext();) {
> Objekt o = oiter.next();
> for (Iterator<Position> iter = o.getPositions().iterator();
> iter.hasNext();) {
> Position p = iter.next();
> offscreen.setColor(Color.blue);
> int big = (int)(fieldSize*1.7);
> if (o instanceof See)
> offscreen.fillOval(p.x * fieldSize, p.y * fieldSize,
> big, big);
> else
> offscreen.drawRect(p.x * fieldSize, p.y * fieldSize,
> fieldSize, fieldSize);
> }
> }
>
> // Strassen
> offscreen.setColor(Color.yellow);
> for (Iterator<Strasse> iter = spielfeld.getStrassen().iterator();
> iter.hasNext();) {
> Strasse s = iter.next();
> for (Iterator<Position> piter = s.getPositionen().iterator();
> piter.hasNext();) {
> Position p = piter.next();
> offscreen.drawOval(p.x * fieldSize +
> fieldSize/2,p.y*fieldSize + fieldSize/2,fieldSize/2,fieldSize/2);
> }
> }
>
>
> // Ameisen
> for (Iterator<Ameise> iter = spielfeld.getAmeisen().iterator();
> iter.hasNext();) {
> Ameise a = iter.next();
> Position p = a.getPosition();
> offscreen.setColor(Color.red);
>
> offscreen.drawImage(ameise[a.getRichtung()],p.x *
> fieldSize,p.y*fieldSize,fieldSize, fieldSize,this);
> //offscreen.drawRect(p.x * fieldSize, p.y * fieldSize,
> fieldSize, fieldSize);
> }
>
>
>
>
>
> // Nest
> for (Iterator<Position> iPos =
> spielfeld.getNest().getPositions().iterator(); iPos.hasNext();) {
> Position p = iPos.next();
> offscreen.setColor(Color.green);
> offscreen.drawRect(p.x * fieldSize, p.y * fieldSize, fieldSize,
> fieldSize);
> }
>
> // Honig
> for (Iterator<Honigpot> iter = spielfeld.getHonig().iterator();
> iter.hasNext();) {
> Honigpot h = iter.next();
> char symbol = h.getSymbol();
> for (Iterator<Position> iPos = h.getPositions().iterator();
> iPos.hasNext();) {
> Position p = iPos.next();
> offscreen.setColor(Color.yellow);
> //offscreen.drawRect(p.x * fieldSize, p.y * fieldSize,
> fieldSize, fieldSize);
> int kap = h.getKapazitaet();
> int bild = 0;
> if (kap > 80)
> bild = 0;
> else if (kap > 60)
> bild = 1;
> else if (kap > 30)
> bild = 2;
> else
> bild = 3;
>
> if (kap > 0)
> offscreen.drawImage(honig[bild],p.x *
> fieldSize,p.y*fieldSize,fieldSize, fieldSize,this);
> }
> }
>
> g.drawImage(offscreenImage, 0, 0, this);
> }
> [/code]
>
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