Android获取屏幕大小

DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int screenWidth =dm.widthPixels;
int screenHeight =dm.heightPixels;

/**获取虚拟功能键高度 */
public int getVirtualBarHeigh() {
int vh = 0;
WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
DisplayMetrics dm = new DisplayMetrics();
try {
@SuppressWarnings("rawtypes")
Class c = Class.forName("android.view.Display");
@SuppressWarnings("unchecked")
Method method = c.getMethod("getRealMetrics", DisplayMetrics.class);
method.invoke(display, dm);
vh = dm.heightPixels - windowManager.getDefaultDisplay().getHeight();
} catch (Exception e) {
e.printStackTrace();
}
return vh;
}

android:theme="@android:style/Theme.Wallpaper.NoTitleBar.Fullscreen"

//view_pager_imgs为Activity中任一个控件对象
view_pager_imgs.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION|
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);