Java Android设计导航抽屉-如何在nav xml中添加开关?
我正在使用新的Android设计导航抽屉。我想在抽屉里加一个开关。是否有一个可行的方法来实现这一点 这是菜单xml:Java Android设计导航抽屉-如何在nav xml中添加开关?,java,android,android-layout,navigation-drawer,material-design,Java,Android,Android Layout,Navigation Drawer,Material Design,我正在使用新的Android设计导航抽屉。我想在抽屉里加一个开关。是否有一个可行的方法来实现这一点 这是菜单xml: <menu xmlns:android="http://schemas.android.com/apk/res/android"> <group android:id="@+id/nav_view_menu_group_1" android:checkableBehavior="single"> &l
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<group
android:id="@+id/nav_view_menu_group_1"
android:checkableBehavior="single">
<item
android:id="@+id/nav_view_menu_item_myschedule"
android:icon="@drawable/ic_navview_my_schedule"
android:title="@string/navview_menu_item_myschedule"
android:titleCondensed="@string/navview_menu_item_myschedule" />
<item
android:id="@+id/nav_view_menu_item_iolive"
android:icon="@drawable/ic_navview_play_circle_fill"
android:title="@string/navview_menu_item_iolive"
android:titleCondensed="@string/navview_menu_item_iolive"
android:visible="false"/>
<item
android:id="@+id/nav_view_menu_item_explore"
android:icon="@drawable/ic_navview_explore"
android:title="@string/navview_menu_item_explore"
android:titleCondensed="@string/navview_menu_item_explore" />
<item
android:id="@+id/nav_view_menu_item_map"
android:icon="@drawable/ic_navview_map"
android:title="@string/navview_menu_item_map"
android:titleCondensed="@string/navview_menu_item_map"
android:visible="false"/>
</group>
</menu>
如何将一个
更改为交换机:
我目前正在使用默认布局:
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="@menu/activity_main_drawer" />
我非常感谢您的反馈。谢谢。我们可以通过以下方式完成
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
//Get a reference to your item by id
MenuItem item = menu.findItem(R.id.menu_pick_color);
//Here, you get access to the view of your item, in this case, the layout of the item has a FrameLayout as root view but you can change it to whatever you use
FrameLayout rootView = (FrameLayout)item.getActionView();
//Then you access to your control by finding it in the rootView
YourControlClass control = (YourControlClass) rootView.findViewById(R.id.control_id);
//And from here you can do whatever you want with your control
return true;
}
我发现的一种方法是在您想要的菜单项上使用setActionView
:
mNavigationView.getMenu().findItem(R.id.nav_connect)
.setActionView(new Switch(this));
// To set whether switch is on/off use:
((Switch) mNavigationView.getMenu().findItem(R.id.nav_connect).getActionView()).setChecked(true);
可能还需要单击侦听器来更改交换机的状态:
mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.nav_connect:
((Switch) menuItem.getActionView()).toggle();
return true;
}
}
}
我没有尝试过,但您可能可以在xml中使用android:actionLayout=“@layout/switch_layout”
,并指向您创建的自定义布局
也可以尝试使用一个可能提供更健壮性的。不过,我也没有尝试过这种方法。如果您只想检查开关中的更改,您可以为开关设置onCheckedChangeListener,如下所示
((Switch) navigationView.getMenu().findItem(R.id.darkModeSwitch).getActionView())
.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked) {
Toast.makeText(MainActivity.this, "Checked", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, "Unchecked", Toast.LENGTH_SHORT).show();
}
}
});
如果你想保持冷静,请使用lambda
((Switch) navigationView.getMenu().findItem(R.id.darkModeSwitch).getActionView())
.setOnCheckedChangeListener((buttonView, isChecked) -> {
if(isChecked) {
Toast.makeText(MainActivity.this, "Checked", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, "Unchecked", Toast.LENGTH_SHORT).show();
}
});
你试过自定义布局吗?你现在用的是什么,抽屉布局?还是其他?我用的是
((Switch) navigationView.getMenu().findItem(R.id.darkModeSwitch).getActionView())
.setOnCheckedChangeListener((buttonView, isChecked) -> {
if(isChecked) {
Toast.makeText(MainActivity.this, "Checked", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, "Unchecked", Toast.LENGTH_SHORT).show();
}
});