Android DrawerLayout設置左右側滑菜單為全屏

我們可以在MainActivity中獲取屏幕寬度后動態賦值給側滑菜單。

在oncreate時

DisplayMetrics metric = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metric);
windowsWight = metric.widthPixels;
windowsHeight = metric.heightPixels;
View leftMenu = findViewById(R.id.left_menu);
LayoutParams leftParams = leftMenu.getLayoutParams();
leftParams.height = windowsHeight;
leftParams.width = windowsWight;
leftMenu.setLayoutParams(leftParams);