获取显示窗口警告 android The method getWidth() from the type Display is deprecated

Display display = getWindowManager().getDefaultDisplay(); 
int width = display.getWidth();  // deprecated
int height = display.getHeight();  // deprecated
换成：

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;

getWindowManager().getDefaultDisplay().getMetrics(metrics);
p.currentX = metrics.widthPixels / 2;
p.currentY = metrics.heightPixels - 40;