从某个项目按下时如何关闭导航抽屉？

理想情况下，一旦从某个项目中按下某个项目，就应该将其关闭，但它不会自动发生。怎么做 ？谢谢！

得到它了！

private DrawerLayout mDrawerLayout;
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerLayout.closeDrawers();

工作完美。

对我来说，这个有效-

mDrawerLayout.closeDrawer(Gravity.START, false);

DrawerLayout mDrawerLayout= (DrawerLayout) findViewById(R.id.drawer_layout)

closeDrawer(); // called when you want to close

public void closeDrawer() {
  if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
    mDrawerLayout.closeDrawer(GravityCompat.START);
  }
}

在开关案例结束处的onNavigationItemSelected的右下角，您应该对此进行纠正。mDrawerLayout.closeDrawers（）;

public boolean onNavigationItemSelected(@NonNull MenuItem item) {
        switch (item.getItemId()){

        }
   mDrawerLayout.closeDrawers();
   return true;
}

如果将mDrawerLayout作为抽屉式布局，则可以在打开时将其关闭。

@Override
public void onBackPressed() {
    if (this.mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
        this.mDrawerLayout.closeDrawer(GravityCompat.START);
    } else {
        super.onBackPressed();
    }
}

closeDrawer();//when you want to call

public void closeDrawer() {
    if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
        mDrawerLayout.closeDrawer(GravityCompat.START);
    }
}