android屏幕适配----虚拟按键

/**
* 通过反射，获取包含虚拟键的整体屏幕高度
*
* @return
*/
private int getHasVirtualKey(Context context) {
int dpi = 0;
Display display = ((Activity) context).getWindowManager().getDefaultDisplay();
DisplayMetrics dm = new DisplayMetrics();
@SuppressWarnings("rawtypes")
Class c;
try {
c = Class.forName("android.view.Display");
@SuppressWarnings("unchecked")
Method method = c.getMethod("getRealMetrics", DisplayMetrics.class);
method.invoke(display, dm);
dpi = dm.heightPixels;
} catch (Exception e) {
e.printStackTrace();
}
return dpi;
}