每个 Activity 中的 NavigationDrawer

Question

我为我的主屏幕创建了导航抽屉，现在想在每个 Activity 中添加它。如果不将 copy/pasting 代码写入每个 Activity，我该如何做到这一点？下面是我的主屏幕 XML 代码。

<androidx.drawerlayout.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:background="@drawable/main_screen_image"
    android:fitsSystemWindows="true"
    tools:context=".HomeScreen">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="@color/purple_200"
            android:elevation="4dp"
            android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

    </LinearLayout>

    MY OTHER CODE

    <com.google.android.material.navigation.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/nav_header"
        app:menu="@menu/drawer_menu" />
</androidx.drawerlayout.widget.DrawerLayout>

Answer 1

通常情况下，恕我直言，NavigationDrawer 旨在与 Fragment 一起使用。 main Activity 有它的 NavigationDrawer，这在 Fragment 中很常见。这样每个 Fragment 就不必拥有或管理自己的 NavigationDrawer。

在Activity中：

@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
    int id = menuItem.getItemId();

    switch (id) {
        case R.id.navigation_item_1:
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.container, new Fragment1()).commit();
            break;
        case R.id.navigation_item_2:
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.container, new Fragment2()).commit();
            break;
        default:
            return false;
    }
}

layout/main_activity的例子。xml:

<!-- A DrawerLayout is intended to be used as the top-level content view
     using match_parent for both width and height
     to consume the full space available. -->
<androidx.drawerlayout.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:background="?attr/colorPrimary"
    tools:context=".MainActivity">

    <!-- As the main content view, the view below consumes the entire
         space available using match_parent in both dimensions. -->
    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@android:color/transparent" />

    <!-- The drawer is given a fixed width in dp
         and extends the full height of the container. -->
    <com.google.android.material.navigation.NavigationView
        android:id="@+id/navigation_view"
        android:layout_width="@dimen/navigation_drawer_width"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/navigation_header"
        app:menu="@menu/navigation" />

</androidx.drawerlayout.widget.DrawerLayout>

Answer 2

找到 mikepenz 使用 MaterialDrawer 的解决方案

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