如何在Android工具栏中将图标居中 [英] how to center icons in toolbar in android
问题描述
我问了类似的问题此处 ... 我在答案中得到了一些教程. 但是这个问题是diffrenet.因为该方法均不适用于我的项目.
I asked a similar question here... I got some tutorials in the answers. But this question is diffrenet. because none of that method do not works in my project.
我要在工具栏中将所有图标居中
I want center all icons in toolbar
我测试了所有可用的方式...但是图标始终在左侧浮动.
I test all availabe ways ...but always icons are floating in left.
我想要居中图标(我更喜欢左侧图标向左浮动,右侧图标向右浮动,其他图标在中央浮动)
I want centering icons (I prefer left icon floats left and right icon floats right and other icons floats center)
Activity.Main.xml
<LinearLayout 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:orientation="vertical" // I add vertical
tools:context=".MainActivity">
<include
android:id="@+id/tool_bar"
layout="@layout/tool_bar"
android:layout_height="wrap_content"
android:layout_width="match_parent" // I add match_parent
android:layout_gravity="center" /> // I add center
</LinearLayout>.
也在tool_bar.xml中
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
android:layout_height="wrap_content"
android:layout_height="match_parent"
android:background="@color/ColorPrimary"
android:elevation="2dp"
android:theme="@style/Base.ThemeOverlay.AppCompat.Dark"
android:layout_gravity="center" // I add center
xmlns:android="http://schemas.android.com/apk/res/android" />
在 main_menu.xml
<menu 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" tools:context=".MainActivity">
<item
android:id="@+id/action_forward"
android:title="forward"
android:icon="@drawable/ic_action_arrow_forward"
app:showAsAction="always"
></item>
<item
android:id="@+id/action_zoom_in"
android:title="zoom in"
android:icon="@drawable/ic_action_zoom_in"
app:showAsAction="always"
></item>
<item ...
,对于<item>
中的上述代码( main_menu.xml ),我尝试了所有这些代码:
and for above code (main_menu.xml) in <item>
I tried all these codes:
android:layout_width="match_parent"
android:layout_weight=".2" // 20%
android:gravity="center"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
我真的不知道该怎么做才能对齐图标. 我用Google搜寻了几个小时,并尝试了所有senario
I realy I do not know whats can I do to align icons. I googled hours and I tried all senario
我怎么了? 对于所有测试,我看不到任何变化...
what is my wrong? for all tests I can not see any change ...
在我想要pic2之前(上图中),但是现在我只想居中!
before I wanted pic2 (in above picture) But now I just want center it!
对于我的所有测试,我只得到照片1.没有任何变化.
For my all test I only get pic 1. without any change.
推荐答案
解决该问题,享受:)
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="4dp"
android:background="?attr/colorPrimary">
<!-- Code for your Left Button -->
<ImageView
android:id="@+id/yourId"
android:src="@mipmap/yourLeftIcon"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
android:layout_gravity="left" />
<!-- Here is the main code for your Middle Buttons -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_gravity="center"
android:gravity="center">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_launcher"
android:id="@+id/button1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_launcher"
android:id="@+id/button2"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_launcher"
android:id="@+id/button3"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_launcher"
android:id="@+id/button4" />
</LinearLayout>
<!-- Code for your Right Button -->
<ImageView
android:id="@+id/yourId"
android:src="@mipmap/yourRightIcon"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
android:layout_gravity="right" />
</android.support.v7.widget.Toolbar>
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