将Drawer布局添加到主活动中

时间:2017-03-09 05:43:31

标签: android xml layout

我创建了一个应用程序。它工作得很好但现在我想在主要活动中包含导航抽屉。我知道代码模板但是我需要创建新活动。我的问题是如何将抽屉布局包含到现有的活动只包含Recycler视图和fab按钮,如果可以包含?抱歉这个大问题。

2 个答案:

答案 0 :(得分:2)

您可以按照以下步骤逐步添加NavigationDrawer:

1)将您的活动父布局设置为 DrawerLayout

<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">

2)在DrawerLayout底部添加 NavigationView

<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" />

</android.support.v4.widget.DrawerLayout>

3)在名为 activity_main_drawer.xml 的res文件夹下的菜单文件夹中为菜单项添加一个xml文件:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <group
        android:id="@+id/top"
        android:checkableBehavior="single">
        <item
            android:id="@+id/nav_camera"
            android:icon="@drawable/ic_menu_camera"
            android:title="Home" />
    </group>

    <group
        android:id="@+id/middle"
        android:checkableBehavior="single">
        <item
            android:id="@+id/nav_share"
            android:icon="@drawable/ic_menu_share"
            android:title="Directory" />
    </group>

    <group
        android:id="@+id/bottom"
        android:checkableBehavior="single">
        <item
            android:id="@+id/nav_send"
            android:icon="@drawable/ic_menu_send"
            android:title="About Us" />
    </group>

</menu>

4)在您的活动中实施 NavigationView.OnNavigationItemSelectedListener

public class YourActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
}

5)添加 onNavigationItemSelected()方法,以定义对所选导航项的操作。

 @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_camera) {
            // Handle the camera action
        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }

6)在活动的onCreate()中配置DrawerLayout并将侦听器设置为NavigationView:

  DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
  ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
  drawer.setDrawerListener(toggle);
  toggle.syncState();

  NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
  navigationView.setNavigationItemSelectedListener(this);

7)将nav_header_main.xml添加到布局文件夹中;

   <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="@dimen/nav_header_height"
    android:background="@drawable/side_nav_bar"
    android:gravity="bottom"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:theme="@style/ThemeOverlay.AppCompat.Dark">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/nav_header_vertical_spacing"
        android:src="@android:drawable/sym_def_app_icon" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/nav_header_vertical_spacing"
        android:text="Android Studio"
        android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="android.studio@android.com" />

</LinearLayout>

如果要添加工具栏,请将以下代码粘贴到DrawerLayout顶部:

<android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <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>

在NavigationView:

之前关闭CoordinatorLayout
</android.support.design.widget.CoordinatorLayout>

让我知道它是如何运作的。

答案 1 :(得分:0)

您必须将以下代码放在activity_main.xml

<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">
 <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
     <android.support.design.widget.FloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </FrameLayout>

    <fragment
        android:id="@+id/fragment_navigation_drawer"
        android:name="com.example.FragmentDrawer"
        android:layout_width="@dimen/nav_drawer_width"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:layout="@layout/fragment_navigation_drawer"
        tools:layout="@layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>