我做了一个导航抽屉，就像developer.android.com网站上的教程中显示的那样。但是现在，我想使用一个导航抽屉，我在NavigationDrawer.class中创建了多个活动在我的应用程序。
我的问题是，这里是否有人可以做一个小教程，它解释了如何使用一个导航抽屉的多个活动。
我第一次读到这个答案
Android导航抽屉在多个活动
但在我的项目上行不通
public class NavigationDrawer extends Activity {
public DrawerLayout drawerLayout;
public ListView drawerList;
private ActionBarDrawerToggle drawerToggle;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerToggle = new ActionBarDrawerToggle((Activity) this, drawerLayout, R.drawable.ic_drawer, 0, 0) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(R.string.app_name);
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(R.string.menu);
}
};
drawerLayout.setDrawerListener(drawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
listItems = getResources().getStringArray(R.array.layers_array);
drawerList = (ListView) findViewById(R.id.left_drawer);
drawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, android.R.id.text,
listItems));
drawerList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int pos, long arg3) {
drawerClickEvent(pos);
}
});
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (drawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
}
在这个活动中，我想有导航抽屉，所以我扩展了'NavigationDrawer'，在其他一些活动中，我想使用相同的导航抽屉
public class SampleActivity extends NavigationDrawer {...}
所以这个答案晚了几年，但有人可能会欣赏它。Android为我们提供了一个新的小部件，可以更容易地使用一个导航抽屉和几个活动。
navigationview是模块化的，在菜单文件夹中有自己的布局。你使用它的方式是以下方式包装xml布局:
Root Layout is a android.support.v4.widget.DrawerLayout that contains two children: an <include ... /> for the layout that is being wrapped (see 2) and a android.support.design.widget.NavigationView.
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<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:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
nav_header_main只是一个线性布局的方向=垂直为你的导航图纸的头部。
Activity_main_drawer是res/menu目录中的一个菜单XML。它可以包含您选择的项目和组。如果你使用AndroidStudio Gallery，向导会为你创建一个基本的Gallery，你可以看到你有哪些选项。
App bar layout is usually now a android.support.design.widget.CoordinatorLayout and this will include two children: a android.support.design.widget.AppBarLayout (which contains a android.support.v7.widget.Toolbar) and an <include ... > for your actual content (see 3).
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="yourpackage.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_main" />
Content layout can be whatever layout you want. This is the layout that contains the main content of the activity (not including the navigation drawer or app bar).
现在，最酷的事情是，你可以在这两个布局中包装每个活动，但你的NavigationView(见步骤1)总是指向activity_main_drawer(或其他什么)。这意味着您将在所有活动上拥有相同的(*)导航抽屉。
它们不会是相同的NavigationView实例，但是，公平地说，即使使用上面概述的BaseActivity解决方案，这也是不可能的。
我的建议是:完全不要使用活动，而是使用片段，并将它们替换到容器中(例如线性布局)，在其中显示您的第一个片段。[注意:你可以在导航图中使用这个概念。Compose进一步减少了制作xml布局的需要，所以我们也可以将其应用于此。]
代码可以在Android开发者教程中找到，你只需要自定义。
http://developer.android.com/training/implementing-navigation/nav-drawer.html
这是明智的，你应该在你的应用程序中使用越来越多的片段，应该只有四个基本的活动，你在你的AndroidManifest.xml中提到除了外部的(例如FacebookActivity):
SplashActivity: uses no fragment, and uses FullScreen theme.
LoginSignUpActivity: Do not require NavigationDrawer at all, and no back button as well, so simply use the normal toolbar, but at the least, 3 or 4 fragments will be required. Uses no-action-bar theme
HomeActivity or DashBoard Activity: Uses no-action-bar theme. Here you require Navigation drawer, also all the screens that follow will be fragments or nested fragments, till the leaf view, with the shared drawer. All the settings, user profile and etc. will be here as fragments, in this activity.
The fragments here will not be added to the back stack and will be opened from the drawer menu items. In the case of fragments that require back button instead of the drawer, there is a fourth kind of activity below.
Activity without drawer. This activity has a back button on top and the fragments inside will be sharing the same action-bar. These fragments will be added to the back-stack, as there will be a navigation history.
[进一步指导请参见:https://stackoverflow.com/a/51100507/787399]
快乐编码!!
