防止 NavigationDrawer 在主页按钮单击时打开 [英] Prevent NavigationDrawer from opening on Home Button Click

问题描述

我的主要活动有一个 NavigationDrawer，在一个实例中，我展示了一个片段，而汉堡菜单"变成了一个箭头.

I have a NavigationDrawer for my main activity, in one instance I show a fragment and the "Hamburger menu" changes into an arrow.

当使用此片段显示时，我禁用了通过滑动打开抽屉的功能

I disabled the ability to open the drawer via swipe when that fragment is shown by using this

mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);

它工作正常，但现在问题是用户仍然可以通过单击主页按钮箭头"来打开抽屉.我希望箭头充当后退按钮而不是打开抽屉，那么如何阻止抽屉打开?

and it works fine but now the problem is the user can still open the drawer by clicking the home button "Arrow". I want the arrow to act as the back button and not open the drawer so how can I stop the drawer from opening?

推荐答案

我猜你需要使用 setNavigationOnClickListener() 在工具栏上覆盖抽屉行为.

I guess you need to use setNavigationOnClickListener() on toolbar to override drawer behavior.

喜欢 -

toolbar.setNavigationOnClickListener(new View.OnClickListener() {
     @Override
     public void onClick(View view) {
        // logic to decide if drawer open/close, or pop fragment etc
     }
});

这确实可以防止通过单击图标打开抽屉.但它确实通过滑动打开.但你已经照顾好了.所以这应该有效.

This does prevents drawer from opening by clicking on icon. But it does open by swiping. But that you already taken care of. So this should work.

注意这仅在您通过调用

mDrawerToggle = new ActionBarDrawerToggle(getActivity(), mDrawerLayout,  toolbar, R.string.openDrawer, R.string.closeDrawer){ ...

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