android触摸代码实现？那位大哥给小弟个例子

Question

LZ要学会看sdk中的apidemo....里面有个touchpaint，讲触摸画图的

Answer 1

        @Override public boolean onTouchEvent(MotionEvent event) {
            int action = event.getAction();
            mCurDown = action == MotionEvent.ACTION_DOWN
                    || action == MotionEvent.ACTION_MOVE;
            int N = event.getHistorySize();
            for (int i=0; i<N; i++) {
                //Log.i("TouchPaint", "Intermediate pointer #" + i);
                drawPoint(event.getHistoricalX(i), event.getHistoricalY(i),
                        event.getHistoricalPressure(i),
                        event.getHistoricalSize(i));
            }
            drawPoint(event.getX(), event.getY(), event.getPressure(),
                    event.getSize());
            return true;
        }
        
        private void drawPoint(float x, float y, float pressure, float size) {
           mCurX = (int)x;
            mCurY = (int)y;
            mCurPressure = pressure;
            mCurSize = size;
            mCurWidth = (int)(mCurSize*(getWidth()/3));
            if (mCurWidth < 1) mCurWidth = 1;
            if (mCurDown && mBitmap != null) {
                int pressureLevel = (int)(mCurPressure*255);
                mPaint.setARGB(pressureLevel, 255, 255, 255);
                mCanvas.drawCircle(mCurX, mCurY, mCurWidth, mPaint);
                mRect.set(mCurX-mCurWidth-2, mCurY-mCurWidth-2,
                       mCurX+mCurWidth+2, mCurY+mCurWidth+2);
                invalidate(mRect);
            }
            mFadeSteps = 0;
        }

Answer 2

触摸下的 click 不是 click 么？

Answer 3

来给你一个例子http://blog.csdn.net/hpoi/archive/2009/10/11/4632378.aspx很详细的解释