我想创建一个 android 应用程序，它有 3 个滑动选项卡面板，每个面板都有 5 个按钮(保存、新建、删除、退出......)。

我想要的是如下:

我创建了滑动选项卡面板。对于 5 个按钮，我添加了拆分操作栏。但它像普通的拆分操作栏一样工作。我的 AndroidManifest.xml 是:

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

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:uiOptions="splitActionBarWhenNarrow"
    android:theme="@style/AppTheme">
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:theme="@style/AppTheme.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

</manifest>

我哪里错了？

最佳答案

实现splitActionBar:

只需将 android:uiOptions="splitActionBarWhenNarrow" 添加到 AndroidManifest.xml 中的 activity 标记中，如下所示...

`<activity
    android:name=".MainActivity"
    android:uiOptions="splitActionBarWhenNarrow">`<br>

您可以阅读更多here和 here

NOTE: It is available ONLY for handset devices with a screen width of 400dp.

创建自定义底部工具栏:

如果您想为所有设备设置它，请在此处查看我的答案(找到以 Creating custom bottom toolbar 开头的帖子):

Creating custom bottom toolbar

I've already created a simple app which should demonstrate you how to begin

Creating a custom ViewGroup

Here's my activity_main.xml layout file:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="0dp"
    tools:context="com.example.piotr.myapplication.MainActivity">

    <LinearLayout
        android:id="@+id/show_pdf"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:background="@color/primary_material_light"
        android:orientation="horizontal">

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_cut_mtrl_alpha"/>

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_copy_mtrl_am_alpha"/>

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_selectall_mtrl_alpha"/>

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_paste_mtrl_am_alpha"/>

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_share_mtrl_alpha"/>

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_selectall_mtrl_alpha"/>

        <ImageButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/abc_ic_menu_moreoverflow_mtrl_alpha"/>
    </LinearLayout>

    <EditText
        android:id="@+id/editText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="75dp"
        android:ems="10"
        android:inputType="textPersonName"
        android:text="Name"/>
</RelativeLayout>

As you can see my parent ViewGroup is RelativeLayout, which simply allows me to create a view at the bottom of screen.

Notice that I set layout padding to zero (I think: setting layout margin to zero here is not necessary, the same effect). If you'd change it, the toolbar won't use full width and it won't stick with bottom of the screen.

Then I added a Linear Layout with hardcoded height which is:

          android:layout_height="40dp"

I wanted it, that my bottom toolbar would take full available width so I set it as match_parent.

Next, I added some ImageButton views with images from Android library.

There you have two possibilities:

• if you really want to have a toolbar like in above example just remove in every ImageButton view this line:

        android:layout_weight="1"
  

After removing weights and some buttons you would get a view pretty similar to expected:

• if you want to take the full width and make every button with the same size use in your project weight as in this mine example.

Now let's go to my AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.example.piotr.myapplication"
          xmlns:android="http://schemas.android.com/apk/res/android">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:windowSoftInputMode="stateVisible|adjustResize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>
</manifest>

In that file I'd added as you can see only one additional line:

         android:windowSoftInputMode="stateVisible|adjustResize">

to make sure that device keyboard won't hide my custom bottom toolbar.

From: How to add a bottom menu to Android activity

如果您有任何问题，请随时提问。

希望对你有帮助

关于android - 如何启用拆分操作栏？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34546160/