android gridview 滑动选择

Question

gridview可否能做到像手势密码那样，滑动选择对应的子view呢。大侠们有demo或者链接来参考一下吗

Answer 1

不清楚具体需求，你继承一个GridView加上下面的代码，看看效果，看完有没有思路

float x = -1;
float y = -1;
@Override
public boolean onTouchEvent(MotionEvent ev) {
    switch (ev.getAction()){
        case MotionEvent.ACTION_DOWN:
            x = ev.getX();
            y = ev.getY();
            break;
        case MotionEvent.ACTION_MOVE:
            x = ev.getX();
            y = ev.getY();
            for (int i = 0; i < getChildCount(); i++) {
                Rect rect = new Rect();
                getChildAt(i).getHitRect(rect);
                if (rect. contains((int)x, (int)y)){
                    getChildAt(i).setBackgroundColor(Color.RED);
                }
            }
            break;
        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_CANCEL:

            break;
    }
    return super.onTouchEvent(ev);
}