问galaxy s7边缘拖放

EN

protected void measureDisplay() {
    // get info about screen size to determine style of images to use
    display = getWindowManager().getDefaultDisplay();
    size = new Point();
    display.getSize(size);

    displayMetrics = new DisplayMetrics();
    // get the density of the display
    display.getMetrics(displayMetrics);

    width = size.x;
    height = size.y;
}

private void measureBoard(View v) {
    // get the current view width and height
    float viewWidth = v.getWidth();
    float viewHeight = v.getHeight();

    // extract the image offsets inside the view
    Matrix matrix = ((ImageView) v).getImageMatrix();
    float[] values = new float[9];
    matrix.getValues(values);
    boardLeft = values[2]; // the X offset
    boardRight = viewWidth - boardLeft;
    boardTop = values[5]; // the Y offset
    boardBottom = viewHeight - boardTop;
    cardOffsetW = (boardRight - boardLeft) / 10;
    cardOffsetH = (boardBottom - boardTop) / 10;
}