导航抽屉打开或关闭时是否可以收听(例如:听众如按钮onclick)？

Question

我打算在打开和关闭导航抽屉时调用一些方法.我怎么能听它(比如按钮的onclick听众)？

我知道我们可以检查(mDrawer.isDrawerOpen(Gravity.LEFT))或((mDrawer.isDrawerClose(Gravity.LEFT))).

提前致谢.

Answer 1

是的,有四种抽象方法可以用作听众

public abstract void onDrawerClosed (View drawerView)
public abstract void onDrawerOpened (View drawerView)
public abstract void onDrawerSlide (View drawerView, float slideOffset)
public abstract void onDrawerStateChanged (int newState)

可以像这样使用

ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
        R.drawable.ic_drawer, R.string.drawer_open, R.string.drawer_close) {
    public void onDrawerClosed(View view) {
        super.onDrawerClosed(view);
        // Do whatever you want here
    }
    public void onDrawerOpened(View drawerView) {
        super.onDrawerOpened(drawerView);
        // Do whatever you want here
    }
};
mDrawerLayout.addDrawerListener(mDrawerToggle);

复制自http://developer.android.com/reference/android/support/v4/widget/DrawerLayout.DrawerListener.html

UPDATE setDrawerListener方法在API级别24.1.0中已弃用.所以用addDrawerListener()

Answer 2

我知道这是一个很老的问题，但我也有同样的问题。

对于较新的 Android 版本，您可以执行以下操作：

 DrawerLayout drawer = findViewById(R.id.drawer_layout);

 drawer.addDrawerListener(new DrawerLayout.DrawerListener() {
        @Override
        public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {

        }

        @Override
        public void onDrawerOpened(@NonNull View drawerView) {
        }

        @Override
        public void onDrawerClosed(@NonNull View drawerView) {

        }

        @Override
        public void onDrawerStateChanged(int newState) {
            Toast.makeText(SideMenuActivity.this, "state: " + newState, Toast.LENGTH_SHORT).show();

        }
    });