Tuesday, April 9, 2013

[android help] Add a layout in a view


I have this code so I can draw with the finger on a particular image. Now I want to add a Layout and some Imageviews in this Layout. How I can do this? Because I want to add in the Layout some onTouch and onClick Listeners to can move the ImageViews. Also, could I add a existing xml layout or only to create new ones dynamically?



@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MyView view1 =new MyView(this);

mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(Color.BLACK);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(3);

setContentView(view1);
}

public class MyView extends View {

private static final float MINP = 0.25f;
private static final float MAXP = 0.75f;

private Bitmap mBitmap;
private Canvas mCanvas;
private Path mPath;
private Paint mBitmapPaint;

public MyView(Context c) {
super(c);
setBackgroundResource(R.drawable.half_court);
// this.inflate(c, R.drawable.playera1, null);
mPath = new Path();
mBitmapPaint = new Paint(Paint.DITHER_FLAG);

}

@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
}

@Override
protected void onDraw(Canvas canvas) {
// canvas.drawLine(mX, mY, Mx1, My1, mPaint);
// canvas.drawLine(mX, mY, x, y, mPaint);
canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
canvas.drawPath(mPath, mPaint);


}

private float mX, mY;
private static final float TOUCH_TOLERANCE = 4;

private void touch_start(float x, float y) {
mPath.reset();
mPath.moveTo(x, y);
mX = x;
mY = y;
}
private void touch_move(float x, float y) {
float dx = Math.abs(x - mX);
float dy = Math.abs(y - mY);
if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) {
// mPath.quadTo(mX, mY, (x + mX)/2, (y + mY)/2);
mX = x;
mY = y;
}
}
private void touch_up() {
mPath.lineTo(mX, mY);
// commit the path to our offscreen
mCanvas.drawPath(mPath, mPaint);
// kill this so we don't double draw
mPath.reset();
}

@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();

switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
invalidate();
break;
case MotionEvent.ACTION_MOVE:
touch_move(x, y);
invalidate();
break;
case MotionEvent.ACTION_UP:
touch_up();
// Mx1=(int) event.getX();
// My1= (int) event.getY();
invalidate();
break;
}
return true;
}
}


.

stackoverflow.comm

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