如何在BottomBar布局android中添加中间按钮 [英] How to add the middle Button in BottomBar layout android

问题描述

我想在我的底栏布局中间添加超级按钮等facebook Messenger，但又混淆了如何添加..

我使用ahbottomnavigation库制作我的底栏。

解决方案

我只是试图使它变得简单，而不是专业类型。看这里：

BottomSheetLayout文件 - tv.xml ：

 <？xml version =1.0encoding =utf-8？> 
< layer-list xmlns：android =http://schemas.android.com/apk/res/android> 
< item 
 android：bottom =2dp
 android：left =2dp
 android：right =2dp
 android：top =15dp > 
< shape android：shape =rectangle> 
< solid android：color =@ color / colorPrimary/> 
< / shape> 
< / item> 
 
< item 
 android：width =70dp
 android：height =70dp
 android：gravity =top | center> 
< shape android：shape =oval> 
< solid android：color =@ color / colorPrimaryDark/> 
 
< / shape> 
< / item> 
  

ActivityLayout - activity_main.xml

 <？xml version =1.0encoding =utf- 8\" >？; 
< RelativeLayout android：layout_height =match_parent
 android：layout_width =match_parent
 xmlns：android =http://schemas.android.com/apk/res/android > 
< RelativeLayout 
 android：layout_height =80dp
 android：layout_width =match_parent
 android：background =@ drawable / tv
 android：gravity =bottom
 android：layout_alignParentBottom =true
 android：layout_alignParentStart =true
 android：id =@ + id / view> 
 
< / RelativeLayout> 
 
< ImageButton 
 android：layout_width =40dp
 android：layout_height =40dp
 android：layout_marginStart =34dp
 android： layout_alignBottom =@ + id / imageButton
 android：layout_toEndOf =@ + id / imageButton
 android：id =@ + id / imageButton3/> 
 
< ImageButton 
 android：layout_width =70dp
 android：layout_height =70dp
 android：background =@ drawable / ic_ring
 android：layout_alignTop =@ + id / view
 android：layout_centerHorizo​​ntal =true
 android：id =@ + id / imageButton/> 
 
< ImageButton 
 android：layout_width =40dp
 android：layout_height =40dp
 android：layout_marginStart =33dp
 android： id =@ + id / imageButton2
 android：layout_alignBottom =@ + id / imageButton3
 android：layout_toEndOf =@ + id / imageButton3/> 
 
< ImageButton 
 android：layout_width =40dp
 android：layout_height =40dp
 android：id =@ + id / imageButton4
 android：layout_marginEnd =34dp
 android：layout_alignBottom =@ + id / imageButton
 android：layout_toStartOf =@ + id / imageButton/> 
 
< ImageButton 
 android：layout_width =40dp
 android：layout_height =40dp
 android：id =@ + id / imageButton5
 android：layout_alignParentBottom =true
 android：layout_toStartOf =@ + id / imageButton4
 android：layout_marginEnd =33dp
 android：layout_marginBottom =10dp/> 
 
< / RelativeLayout> 
  

输出：

根据您的想法更改价值和设计。

示例只是一个演示，不包含OP提出的确切答案。它只是一个硬编码的假人。

I want to add facebook messenger like oversized button in the middle of my bottombar layout but confused how to add..

Facebook Messenger

I was using ahbottomnavigation library for making my bottombar.

解决方案

I just tried to make it simple, not professional type. Look here:

BottomSheetLayout file - tv.xml:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
    android:bottom="2dp"
    android:left="2dp"
    android:right="2dp"
    android:top="15dp">
    <shape android:shape="rectangle">
        <solid android:color="@color/colorPrimary" />
    </shape>
</item>

<item
    android:width="70dp"
    android:height="70dp"
    android:gravity="top|center">
    <shape android:shape="oval">
        <solid android:color="@color/colorPrimaryDark" />

    </shape>
</item>

ActivityLayout - activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
    android:layout_height="80dp"
    android:layout_width="match_parent"
    android:background="@drawable/tv"
    android:gravity="bottom"
    android:layout_alignParentBottom="true"
    android:layout_alignParentStart="true"
    android:id="@+id/view">

</RelativeLayout>

<ImageButton
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:layout_marginStart="34dp"
    android:layout_alignBottom="@+id/imageButton"
    android:layout_toEndOf="@+id/imageButton"
    android:id="@+id/imageButton3" />

<ImageButton
    android:layout_width="70dp"
    android:layout_height="70dp"
    android:background="@drawable/ic_ring"
    android:layout_alignTop="@+id/view"
    android:layout_centerHorizontal="true"
    android:id="@+id/imageButton" />

<ImageButton
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:layout_marginStart="33dp"
    android:id="@+id/imageButton2"
    android:layout_alignBottom="@+id/imageButton3"
    android:layout_toEndOf="@+id/imageButton3" />

<ImageButton
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:id="@+id/imageButton4"
    android:layout_marginEnd="34dp"
    android:layout_alignBottom="@+id/imageButton"
    android:layout_toStartOf="@+id/imageButton" />

<ImageButton
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:id="@+id/imageButton5"
    android:layout_alignParentBottom="true"
    android:layout_toStartOf="@+id/imageButton4"
    android:layout_marginEnd="33dp"
    android:layout_marginBottom="10dp"/>

</RelativeLayout>

Output:

Change value and design as per your idea.

Example is just a demo and does not contain exact answer asked by OP. Its just a hard coded dummy.

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