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ActionBarEx

高拓展高自定义性ActionBar，完美替代Android系统默认。

支持自定义标题栏布局，支持XML中直接以子布局编写
支持自定义前景布局，如显示Loading效果
支持自定义背景布局，如图片等
支持自定义底部分割线，可以投影效果显示在外部
支持自适应状态栏暗亮色图标模式，可实时动态刷新
状态栏暗亮色图标模式已适配常见国产ROM，详见StatusBarCompat
已封装3种通用样式，可按需引入

GitHub主页

Demo下载

项目简介

为什么要写一个ActionBar？官方的和网上开源的那么多。

第一，先说说官方的。官方的在不同系统上的风格并不统一，自定义项太少，不能满足开发需求，所以才涌现了这么多的开源项目。

第二，网上开源的。网上的已有的，我发现的，用过的大部分都是直接封装一个固定样式的布局，或控制控件的显示隐藏，或动态添加需要的控件。但也仅限于自定义左右图标的和中间标题的个数和样式。如果要自定义ActionBar的背景呢？要让背景显示一个图片呢？要让图片延伸到状态栏下面呢？要让背景实现半透明高斯模糊效果呢？要限定按钮图标的大小呢？要自定义中间标题的背景呢？要显示一个搜索框呢？要让搜索框带有清空和搜索图标呢？要自定义搜索框样式呢？要在网络请求时显示一个Loading效果呢？等等这些需求都是无法满足的。而且我相信这样的需求不在少数。

也可能有可以实现的框架，只是我还没发现。

GitHub上Star那么多的框架都无法实现，这个就可以？

要说这个绝对可以实现，肯定是不可能的，但我相信可以实现市面上99%以上的需求。

哪里来的这么大的自信？还是先看看整个项目的层级结构吧。

整个ActionBarEx分为3个基本层级，具体负责功能和命名约定如下：

根层级	子层级	说明	备注
BackgroundLayer		背景层	可自定义布局
ActionBarLayer		主体层	垂直线性布局
	StatusBar	状态栏
	TitleBar	标题栏	可自定义布局
	BottomLine	分割线
ForegroundLayer		前景层	可自定义布局

BackgroundLayer 背景层，负责整个ActionBar背景的绘制，如实现半透明背景或图片背景或高斯模糊背景
ActionBarLayer 主体层，是以下3个不分的统称：
- StatusBar 系统状态栏占位，可控制单独显示一个背景色，可实现状态栏图片暗色和亮色模式切换
- TitleBar 导航栏占位，用于显示标题图标按钮等，支持自定义布局样式，以实现复杂需求
- BottomLine 底部分割线，可控制分割线颜色和高度
ForegroundLayer 前景层，用于显示一些特殊的状态，如加载状态LoadingBar，支持自定义布局

别整这么多虚的，先看看疗效

呦吼，看着还不错呀，快告诉我怎么用？

别急呀，我再说说实现细节。

好好，别动手，有话好好说，你把这个规则长方体放下。。。

要说使用方式，还得再明确几个类

ActionBarEx 这个就是上面说的封装好的分3个层级的基类
ActionBarCommon 继承自ActionBarEx，标题栏布局为【图标-文字-标题文字-文字-图标】
ActionBarSearch 继承自ActionBarEx，标题栏布局为【图标-文字-搜索框-文字-图标】
ActionBarSuper 继承自ActionBarEx
- 支持自定义主标题和副标题显示
- 支持自定义标题位置居中或居左
- 左右分别支持最多5个按钮
- 支持精确自定义每个按钮的边距

集成方式

添加依赖

在Project的build.gradle添加仓库地址

allprojects {
	repositories {
		...
		maven { url 'https://www.jitpack.io' }
	}
}

在Model:app的build.gradle添加框架依赖

最新版本是多少，看下Releases

从2.2.9以后版本去除版本号前的v，引用时需要注意下。

从3.0.0版本开始分离了ActionBarEx和ActionBarCommon/Search。

从3.1.0版本新增ActionBarSuper

dependencies {
	// 完全引入
	implementation 'com.github.goweii:ActionBarEx:3.2.2'
	
	// 只引入ActionBarEx
	implementation 'com.github.goweii.ActionBarEx:actionbarex:3.2.2'
	// 引入ActionBarCommon/Search/Super，依赖于ActionBarEx
	implementation 'com.github.goweii.ActionBarEx:actionbarex-common:3.2.2'
}

简单需求只需要下面2步就可以了

这里用ActionBarCommon举个例子

布局文件引用

<per.goweii.actionbarex.common.ActionBarCommon
    android:id="@+id/simple_action_bar_3"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp"
    android:background="#ccffffff"
    app:ab_autoImmersion="false"
    app:ab_bottomLineColor="@color/line"
    app:ab_bottomLineHeight="0dp"
    app:ab_foregroundLayerLayout="@layout/loading_bar"
    app:ab_statusBarColor="@color/transparent"
    app:ab_statusBarMode="dark"
    app:ab_statusBarVisible="false"
    app:ab_titleBarHeight="48dp"
    app:abc_leftIconColor="@color/black"
    app:abc_leftIconRes="@mipmap/back"
    app:abc_leftText="返回"
	app:abc_leftTextPaddingLeft="0dp"
	app:abc_leftTextPaddingRight="0dp"
	app:abc_rightIconColor="@color/black"
	app:abc_rightIconRes="@mipmap/search"
	app:abc_rightText="确定"
    app:abc_rightTextPaddingLeft="0dp"
    app:abc_rightTextPaddingRight="0dp"
    app:abc_titleText="这个标题有点长我试试长标题什么样子"
	app:abc_titleTextMaxWidth="180dp" />

代码中绑定事件

actionBarCommon.setOnLeftIconClickListener(new OnActionBarChildClickListener() {
    @Override
    public void onClick() {
    	Toast.makeText(context, "onLeftIconClick", Toast.LENGTH_SHORT).show()
    }
});

复杂一点的需求，需要自定义导航栏布局

使用起来是这个样子的

自定义布局文件 title_bar_custom.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="48dp">
    
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/iv_back"
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:padding="15dp"
            android:scaleType="fitCenter"
            android:src="@mipmap/back" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center"
            android:text="自定义布局"
            android:textColor="@color/white"
            android:textSize="17sp" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="right"
        android:orientation="horizontal">

        <ImageView
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:padding="15dp"
            android:scaleType="fitCenter"
            android:src="@mipmap/download" />

        <ImageView
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:padding="15dp"
            android:scaleType="fitCenter"
            android:src="@mipmap/delete" />

        <ImageView
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:padding="15dp"
            android:scaleType="fitCenter"
            android:src="@mipmap/more" />

    </LinearLayout>

</RelativeLayout>

引用布局

<per.goweii.actionbarex.ActionBarEx
    android:id="@+id/action_bar_ex"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp"
    android:background="@drawable/title_bar_custom_bg"
    app:ab_bottomLineColor="@color/line"
    app:ab_bottomLineHeight="0dp"
    app:ab_foregroundLayerLayout="@layout/loading_bar"
    app:ab_statusBarColor="@color/transparent"
    app:ab_statusBarMode="dark"
    app:ab_statusBarVisible="48dp"
    app:ab_titleBarLayout="@layout/title_bar_custom" />

代码中绑定事件

actionBarEx.getView(R.id.iv_back).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
		finish();
    }
});

更加复杂的需求，可能需要自定义子类了

自定义子类需要下面三步，复写2个方法

initAttrs(AttributeSet attrs)：获取子类的自定义属性，注意不要忘了调用super.initAttrs(attrs);
inflateTitleBar()：初始化TitleBar导航栏布局
自定义点击事件回调

举个例子吧

@Override
protected void initAttrs(AttributeSet attrs) {
    super.initAttrs(attrs);

    TypedArray typedArray = getContext().obtainStyledAttributes(attrs, R.styleable.ActionBarCommon);

    float titleTextMaxWidthDef = getContext().getResources().getDimension(R.dimen.title_bar_title_text_max_width_def);
    float iconPaddingDef = getContext().getResources().getDimension(R.dimen.title_bar_icon_padding_def);
    float textSizeDef = getContext().getResources().getDimension(R.dimen.title_bar_text_size_def);
    float textPaddingLeftDef = getContext().getResources().getDimension(R.dimen.title_bar_text_padding_left_def);
    float textPaddingRightDef = getContext().getResources().getDimension(R.dimen.title_bar_text_padding_right_def);
    float titleTextSizeDef = getContext().getResources().getDimension(R.dimen.title_bar_title_text_size_def);
    int iconColorDef = ContextCompat.getColor(getContext(), R.color.title_bar_icon_color_def);
    int textColorDef = ContextCompat.getColor(getContext(), R.color.title_bar_text_color_def);
    int titleTextColorDef = ContextCompat.getColor(getContext(), R.color.title_bar_title_text_color_def);

    leftTextClickToFinish = typedArray.getBoolean(R.styleable.ActionBarCommon_abc_leftTextClickToFinish, false);
    leftIconClickToFinish = typedArray.getBoolean(R.styleable.ActionBarCommon_abc_leftIconClickToFinish, false);
    leftText = typedArray.getString(R.styleable.ActionBarCommon_abc_leftText);
    leftTextSize = typedArray.getDimension(R.styleable.ActionBarCommon_abc_leftTextSize, textSizeDef);
    leftTextColor = typedArray.getColor(R.styleable.ActionBarCommon_abc_leftTextColor, textColorDef);
    leftTextPaddingLeft = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_leftTextPaddingLeft, textPaddingLeftDef);
    leftTextPaddingRight = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_leftTextPaddingRight, textPaddingRightDef);
    leftIconRes = typedArray.getResourceId(R.styleable.ActionBarCommon_abc_leftIconRes, 0);
    leftIconColor = typedArray.getColor(R.styleable.ActionBarCommon_abc_leftIconColor, iconColorDef);
    leftIconPadding = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_leftIconPadding, iconPaddingDef);
    leftIconMarginLeft = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_leftIconMarginLeft, 0);

    rightText = typedArray.getString(R.styleable.ActionBarCommon_abc_rightText);
    rightTextSize = typedArray.getDimension(R.styleable.ActionBarCommon_abc_rightTextSize, textSizeDef);
    rightTextColor = typedArray.getColor(R.styleable.ActionBarCommon_abc_rightTextColor, textColorDef);
    rightTextPaddingLeft = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_rightTextPaddingLeft, textPaddingLeftDef);
    rightTextPaddingRight = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_rightTextPaddingRight, textPaddingRightDef);
    rightIconRes = typedArray.getResourceId(R.styleable.ActionBarCommon_abc_rightIconRes, 0);
    rightIconColor = typedArray.getColor(R.styleable.ActionBarCommon_abc_rightIconColor, iconColorDef);
    rightIconPadding = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_rightIconPadding, iconPaddingDef);
    rightIconMarginRight = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_rightIconMarginRight, 0);

    titleText = typedArray.getString(R.styleable.ActionBarCommon_abc_titleText);
    titleTextSize = typedArray.getDimension(R.styleable.ActionBarCommon_abc_titleTextSize, titleTextSizeDef);
    titleTextColor = typedArray.getColor(R.styleable.ActionBarCommon_abc_titleTextColor, titleTextColorDef);
    titleTextMaxWidth = (int) typedArray.getDimension(R.styleable.ActionBarCommon_abc_titleTextMaxWidth, titleTextMaxWidthDef);

    typedArray.recycle();
}

@Override
protected View inflateTitleBar() {
    titleBarChild = (RelativeLayout) inflate(getContext(), R.layout.action_bar_title_bar_common, null);

    leftIconView = titleBarChild.findViewById(R.id.iv_left);
    leftTextView = titleBarChild.findViewById(R.id.tv_left);
    titleTextView = titleBarChild.findViewById(R.id.tv_title);
    rightTextView = titleBarChild.findViewById(R.id.tv_right);
    rightIconView = titleBarChild.findViewById(R.id.iv_right);

    LinearLayout.LayoutParams leftIconViewParams = (LinearLayout.LayoutParams) leftIconView.getLayoutParams();
    leftIconViewParams.leftMargin = leftIconMarginLeft;
    leftIconView.setLayoutParams(leftIconViewParams);
    if (leftIconRes > 0) {
        leftIconView.setVisibility(VISIBLE);
        leftIconView.setPadding(leftIconPadding, leftIconPadding, leftIconPadding, leftIconPadding);
        leftIconView.setImageResource(leftIconRes);
        leftIconView.setColorFilter(leftIconColor);
        if (leftIconClickToFinish) {
            leftIconView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    finishActivity();
                }
            });
        }
    } else {
        leftIconView.setVisibility(GONE);
    }

    if (!TextUtils.isEmpty(leftText)) {
        leftTextView.setVisibility(VISIBLE);
        leftTextView.setText(leftText);
        leftTextView.setTextColor(leftTextColor);
        leftTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, leftTextSize);
        leftTextView.setPadding(leftTextPaddingLeft, 0, leftTextPaddingRight, 0);
        if (leftTextClickToFinish) {
            leftTextView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    finishActivity();
                }
            });
        }
    } else {
        leftTextView.setVisibility(GONE);
    }

    titleTextView.setVisibility(VISIBLE);
    titleTextView.setText(titleText);
    titleTextView.setTextColor(titleTextColor);
    titleTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, titleTextSize);
    titleTextView.setMaxWidth(titleTextMaxWidth);

    LinearLayout.LayoutParams rightIconViewParams = (LinearLayout.LayoutParams) rightIconView.getLayoutParams();
    rightIconViewParams.rightMargin = rightIconMarginRight;
    rightIconView.setLayoutParams(rightIconViewParams);
    if (rightIconRes > 0) {
        rightIconView.setVisibility(VISIBLE);
        rightIconView.setPadding(rightIconPadding, rightIconPadding, rightIconPadding, rightIconPadding);
        rightIconView.setImageResource(rightIconRes);
        rightIconView.setColorFilter(rightIconColor);
    } else {
        rightIconView.setVisibility(GONE);
    }

    if (!TextUtils.isEmpty(rightText)) {
        rightTextView.setVisibility(VISIBLE);
        rightTextView.setText(rightText);
        rightTextView.setTextColor(rightTextColor);
        rightTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, rightTextSize);
        rightTextView.setPadding(rightTextPaddingLeft, 0, rightTextPaddingRight, 0);
    } else {
        rightTextView.setVisibility(GONE);
    }
    return titleBarChild;
}

好吧我承认，我只是复制了下ActionBarCommon的实现代码，不过流程就是这么个流程，还是很简单的。

哎，等等，前景层怎么用呢？

厉害了，想跳过去，都被你发现了。

看下前面自定义导航栏布局中是不是有这么一句

app:ab_foregroundLayerLayout="@layout/loading_bar"

那这个布局长什么样子呢？

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:visibility="gone"
    android:layout_height="50dp">

    <me.zhanghai.android.materialprogressbar.MaterialProgressBar
        android:id="@+id/loading_bar"
        style="@style/loading_bar"
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:layout_gravity="bottom"
        android:indeterminate="true"
        app:mpb_progressStyle="horizontal"
        app:mpb_useIntrinsicPadding="false" />

</FrameLayout>

这个其实就是一个1dp高的ProgressBar，用来显示加载中效果

在代码中这样使用就可以了

actionBarEx.getForegroundLayer().setVisibility(View.VISIBLE);
actionBarEx.getForegroundLayer().setVisibility(View.GONE);

是不是很简单？

既然都说到这了，就把一些常用方法和属性都说了吧

常用方法

ActionBarEx

getBackgroundLayer()：获取背景层布局
getActionBar()：获取主体层布局
getForegroundLayer()：获取前景层布局
getStatusBar()：获取状态栏视图
getTitleBar()：获取导航栏布局
getTitleBarChild()：获取导航栏子视图
getBottomLine()：获取底部分割线视图
getView(@IdRes int id)：获取子控件
getActionBarHeight()：获取整个ActionBar的高度
getStatusBarHeight()：获取状态栏高度
getTitleBarHeight()：获取标题栏高度
getBottomHeight()：获取分割线高度
initAttrs(AttributeSet attrs)：获取布局属性
inflateTitleBar()：初始化标题栏布局

ActionBarCommon

getLeftIconView()：获取左侧图标视图
getLeftTextView()：获取左侧文本视图
getTitleTextView()：获取中间标题视图
getRightTextView()：获取右侧文本视图
getRighIconView()：获取右侧图标视图
setOnLeftIconClickListener(final OnActionBarChildClickListener onLeftIconClickListener)：左侧图标点击事件
setOnLeftTextClickListener(final OnActionBarChildClickListener onLeftTextClickListener)：左侧文本点击事件
setOnRightTextClickListener(final OnActionBarChildClickListener onRightTextClickListener)：右侧文本点击事件
setOnRightIconClickListener(final OnActionBarChildClickListener onRightIconClickListener)：右侧图标点击事件

ActionBarSearch

getLeftIconView()：获取左侧图标视图
getLeftTextView()：获取左侧文本视图
getEditTextView()：获取中间输入框视图
getRightTextView()：获取右侧文本视图
getRightIconView()：获取右侧图标视图
setOnLeftIconClickListener(final OnActionBarChildClickListener onLeftIconClickListener)：左侧图标点击事件
setOnLeftTextClickListener(final OnActionBarChildClickListener onLeftTextClickListener)：左侧文本点击事件
setOnRightTextClickListener(final OnActionBarChildClickListener onRightTextClickListener)：右侧文本点击事件
setOnRightIconClickListener(final OnActionBarChildClickListener onRightIconClickListener)：右侧图标点击事件

ActionBarSuper

getTitleTextView()：获取主标题
getSubtitleTextView()：获取副标题
getLeftActionViews()：获取左侧按钮集合
getRightActionViews()：获取右侧按钮集合
getLeftActionView(int index)：获取指定位置的左侧按钮(由0开始，0为XML中序号为1的)
getRightActionView(int index)：获取指定位置的右侧按钮(由0开始，0为XML中序号为1的)

属性介绍

ActionBarEx

<!--是否开启自动沉浸状态栏，默认为true-->
<attr name="ab_autoImmersion" format="boolean" />
<!--背景层布局，优先级高于背景层为图片-->
<attr name="ab_backgroundLayerLayout" format="reference" />
<!--背景层为图片-->
<attr name="ab_backgroundLayerImageRes" format="reference" />
<!--是否显示状态栏，默认为true-->
<attr name="ab_statusBarVisible" format="boolean" />
<!--状态栏颜色，默认透明-->
<attr name="ab_statusBarColor" format="color|reference" />
<!--状态栏图标颜色模式，默认light-->
<attr name="ab_statusBarMode" format="enum">
    <enum name="light" value="0" />
    <enum name="dark" value="1" />
</attr>
<!--点击关闭Activity控件ID-->
<attr name="ab_clickToFinish" format="reference" />
<!--主体层布局-->
<attr name="ab_titleBarLayout" format="reference" />
<!--主体层高度，默认为48dp-->
<attr name="ab_titleBarHeight" format="dimension|reference" />
<!--底部分割线高度，默认为0dp-->
<attr name="ab_bottomLineHeight" format="dimension|reference" />
<!--底部分割线颜色，默认透明-->
<attr name="ab_bottomLineColor" format="color|reference" />
<!--底部分割线资源引用，默认透明-->
<attr name="ab_bottomLineResId" format="reference" />
<!--底部分割线位于ActionBar外部，可实现投影效果-->
<attr name="ab_bottomLineOutside" format="boolean|reference" />
<!--前景层布局-->
<attr name="ab_foregroundLayerLayout" format="reference" />

ActionBarCommon

<!--这些属性大家应该看名字就能理解是什么意思了，好吧是因为我懒-->
<attr name="abc_leftTextClickToFinish" format="boolean|reference" />
<attr name="abc_leftIconClickToFinish" format="boolean|reference" />
<attr name="abc_leftText" format="string|dimension" />
<attr name="abc_leftTextSize" format="dimension|reference" />
<attr name="abc_leftTextColor" format="color|reference" />
<attr name="abc_leftTextPaddingLeft" format="dimension|reference" />
<attr name="abc_leftTextPaddingRight" format="dimension|reference" />
<attr name="abc_leftIconRes" format="reference" />
<attr name="abc_leftIconColor" format="color|reference" />
<attr name="abc_leftIconPadding" format="dimension|reference" />
<attr name="abc_leftIconMarginLeft" format="dimension|reference" />
<attr name="abc_rightText" format="string|dimension" />
<attr name="abc_rightTextSize" format="dimension|reference" />
<attr name="abc_rightTextColor" format="color|reference" />
<attr name="abc_rightTextPaddingLeft" format="dimension|reference" />
<attr name="abc_rightTextPaddingRight" format="dimension|reference" />
<attr name="abc_rightIconRes" format="reference" />
<attr name="abc_rightIconColor" format="color|reference" />
<attr name="abc_rightIconPadding" format="dimension|reference" />
<attr name="abc_rightIconMarginRight" format="dimension|reference" />
<attr name="abc_titleText" format="string|reference" />
<attr name="abc_titleTextSize" format="dimension|reference" />
<attr name="abc_titleTextColor" format="color|reference" />
<attr name="abc_titleTextMaxWidth" format="dimension|reference" />

ActionBarSearch

<!--这些属性大家应该看名字就能理解是什么意思了，好吧是因为我懒-->
<attr name="abs_leftTextClickToFinish" format="boolean|reference" />
<attr name="abs_leftIconClickToFinish" format="boolean|reference" />
<attr name="abs_leftText" format="string|dimension" />
<attr name="abs_leftTextSize" format="dimension|reference" />
<attr name="abs_leftTextColor" format="color|reference" />
<attr name="abs_leftTextPaddingLeft" format="dimension|reference" />
<attr name="abs_leftTextPaddingRight" format="dimension|reference" />
<attr name="abs_leftIconRes" format="reference" />
<attr name="abs_leftIconColor" format="color|reference" />
<attr name="abs_leftIconPadding" format="dimension|reference" />
<attr name="abs_rightText" format="string|dimension" />
<attr name="abs_rightTextSize" format="dimension|reference" />
<attr name="abs_rightTextColor" format="color|reference" />
<attr name="abs_rightTextPaddingLeft" format="dimension|reference" />
<attr name="abs_rightTextPaddingRight" format="dimension|reference" />
<attr name="abs_rightIconRes" format="reference" />
<attr name="abs_rightIconColor" format="color|reference" />
<attr name="abs_rightIconPadding" format="dimension|reference" />
<attr name="abs_titleBgRes" format="reference" />
<attr name="abs_titleHintText" format="string|reference" />
<attr name="abs_titleTextSize" format="dimension|reference" />
<attr name="abs_titleTextColor" format="color|reference" />
<attr name="abs_titleHintColor" format="color|reference" />
<attr name="abs_titlePaddingHorizontal" format="dimension|reference" />
<attr name="abs_titleMarginVertical" format="dimension|reference" />

ActionBarSuper

针对下面的属性有几点要强调下

不带有left/right的属性会同时应用到左右两侧
带有left/right的属性会覆盖不带有left/right的属性
不带有数字序号的属性会同时应用到该侧的全部序号
带有数字序号的属性会覆盖不不带有数字序号的属性

<!--这些属性大家应该看名字就能理解是什么意思了，好吧是因为我懒-->
<attr name="absuper_titleGravity" format="enum">
    <enum name="center" value="0" />
    <enum name="left" value="1" />
    <enum name="right" value="2" />
</attr>
<attr name="absuper_titleTextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_titleText" format="string|reference" />
<attr name="absuper_titleTextSize" format="dimension|reference" />
<attr name="absuper_titleTextColor" format="color|reference" />
<attr name="absuper_titleTextMaxWidth" format="dimension|reference" />
<attr name="absuper_titlePadding" format="dimension|reference" />
<attr name="absuper_titlePaddingLeft" format="dimension|reference" />
<attr name="absuper_titlePaddingRight" format="dimension|reference" />
<attr name="absuper_titlePaddingTop" format="dimension|reference" />
<attr name="absuper_titlePaddingBottom" format="dimension|reference" />
<attr name="absuper_titleMargin" format="dimension|reference" />
<attr name="absuper_titleMarginLeft" format="dimension|reference" />
<attr name="absuper_titleMarginRight" format="dimension|reference" />
<attr name="absuper_titleMarginTop" format="dimension|reference" />
<attr name="absuper_titleMarginBottom" format="dimension|reference" />
<attr name="absuper_subtitleTextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_subtitleText" format="string|reference" />
<attr name="absuper_subtitleTextSize" format="dimension|reference" />
<attr name="absuper_subtitleTextColor" format="color|reference" />
<attr name="absuper_subtitleTextMaxWidth" format="dimension|reference" />
<attr name="absuper_subtitlePadding" format="dimension|reference" />
<attr name="absuper_subtitlePaddingLeft" format="dimension|reference" />
<attr name="absuper_subtitlePaddingRight" format="dimension|reference" />
<attr name="absuper_subtitlePaddingTop" format="dimension|reference" />
<attr name="absuper_subtitlePaddingBottom" format="dimension|reference" />
<attr name="absuper_subtitleMargin" format="dimension|reference" />
<attr name="absuper_subtitleMarginLeft" format="dimension|reference" />
<attr name="absuper_subtitleMarginRight" format="dimension|reference" />
<attr name="absuper_subtitleMarginTop" format="dimension|reference" />
<attr name="absuper_subtitleMarginBottom" format="dimension|reference" />

<attr name="absuper_textStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_textSize" format="dimension|reference" />
<attr name="absuper_textColor" format="color|reference" />
<attr name="absuper_textPadding" format="dimension|reference" />
<attr name="absuper_textPaddingLeft" format="dimension|reference" />
<attr name="absuper_textPaddingRight" format="dimension|reference" />
<attr name="absuper_textPaddingTop" format="dimension|reference" />
<attr name="absuper_textPaddingBottom" format="dimension|reference" />
<attr name="absuper_textMargin" format="dimension|reference" />
<attr name="absuper_textMarginLeft" format="dimension|reference" />
<attr name="absuper_textMarginRight" format="dimension|reference" />
<attr name="absuper_textMarginTop" format="dimension|reference" />
<attr name="absuper_textMarginBottom" format="dimension|reference" />
<attr name="absuper_iconColor" format="color|reference" />
<attr name="absuper_iconPadding" format="dimension|reference" />
<attr name="absuper_iconPaddingLeft" format="dimension|reference" />
<attr name="absuper_iconPaddingRight" format="dimension|reference" />
<attr name="absuper_iconPaddingTop" format="dimension|reference" />
<attr name="absuper_iconPaddingBottom" format="dimension|reference" />
<attr name="absuper_iconMargin" format="dimension|reference" />
<attr name="absuper_iconMarginLeft" format="dimension|reference" />
<attr name="absuper_iconMarginRight" format="dimension|reference" />
<attr name="absuper_iconMarginTop" format="dimension|reference" />
<attr name="absuper_iconMarginBottom" format="dimension|reference" />

<attr name="absuper_leftTextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_leftPadding" format="dimension|reference" />
<attr name="absuper_leftPaddingLeft" format="dimension|reference" />
<attr name="absuper_leftPaddingRight" format="dimension|reference" />
<attr name="absuper_leftPaddingTop" format="dimension|reference" />
<attr name="absuper_leftPaddingBottom" format="dimension|reference" />
<attr name="absuper_leftTextSize" format="dimension|reference" />
<attr name="absuper_leftTextColor" format="color|reference" />
<attr name="absuper_leftTextPadding" format="dimension|reference" />
<attr name="absuper_leftTextPaddingLeft" format="dimension|reference" />
<attr name="absuper_leftTextPaddingRight" format="dimension|reference" />
<attr name="absuper_leftTextPaddingTop" format="dimension|reference" />
<attr name="absuper_leftTextPaddingBottom" format="dimension|reference" />
<attr name="absuper_leftTextMargin" format="dimension|reference" />
<attr name="absuper_leftTextMarginLeft" format="dimension|reference" />
<attr name="absuper_leftTextMarginRight" format="dimension|reference" />
<attr name="absuper_leftTextMarginTop" format="dimension|reference" />
<attr name="absuper_leftTextMarginBottom" format="dimension|reference" />
<attr name="absuper_leftIconColor" format="color|reference" />
<attr name="absuper_leftIconPadding" format="dimension|reference" />
<attr name="absuper_leftIconPaddingLeft" format="dimension|reference" />
<attr name="absuper_leftIconPaddingRight" format="dimension|reference" />
<attr name="absuper_leftIconPaddingTop" format="dimension|reference" />
<attr name="absuper_leftIconPaddingBottom" format="dimension|reference" />
<attr name="absuper_leftIconMargin" format="dimension|reference" />
<attr name="absuper_leftIconMarginLeft" format="dimension|reference" />
<attr name="absuper_leftIconMarginRight" format="dimension|reference" />
<attr name="absuper_leftIconMarginTop" format="dimension|reference" />
<attr name="absuper_leftIconMarginBottom" format="dimension|reference" />

<attr name="absuper_rightTextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_rightPadding" format="dimension|reference" />
<attr name="absuper_rightPaddingLeft" format="dimension|reference" />
<attr name="absuper_rightPaddingRight" format="dimension|reference" />
<attr name="absuper_rightPaddingTop" format="dimension|reference" />
<attr name="absuper_rightPaddingBottom" format="dimension|reference" />
<attr name="absuper_rightTextSize" format="dimension|reference" />
<attr name="absuper_rightTextColor" format="color|reference" />
<attr name="absuper_rightTextPadding" format="dimension|reference" />
<attr name="absuper_rightTextPaddingLeft" format="dimension|reference" />
<attr name="absuper_rightTextPaddingRight" format="dimension|reference" />
<attr name="absuper_rightTextPaddingTop" format="dimension|reference" />
<attr name="absuper_rightTextPaddingBottom" format="dimension|reference" />
<attr name="absuper_rightTextMargin" format="dimension|reference" />
<attr name="absuper_rightTextMarginLeft" format="dimension|reference" />
<attr name="absuper_rightTextMarginRight" format="dimension|reference" />
<attr name="absuper_rightTextMarginTop" format="dimension|reference" />
<attr name="absuper_rightTextMarginBottom" format="dimension|reference" />
<attr name="absuper_rightIconColor" format="color|reference" />
<attr name="absuper_rightIconPadding" format="dimension|reference" />
<attr name="absuper_rightIconPaddingLeft" format="dimension|reference" />
<attr name="absuper_rightIconPaddingRight" format="dimension|reference" />
<attr name="absuper_rightIconPaddingTop" format="dimension|reference" />
<attr name="absuper_rightIconPaddingBottom" format="dimension|reference" />
<attr name="absuper_rightIconMargin" format="dimension|reference" />
<attr name="absuper_rightIconMarginLeft" format="dimension|reference" />
<attr name="absuper_rightIconMarginRight" format="dimension|reference" />
<attr name="absuper_rightIconMarginTop" format="dimension|reference" />
<attr name="absuper_rightIconMarginBottom" format="dimension|reference" />

<attr name="absuper_left1TextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_left1TextClickToFinish" format="boolean|reference" />
<attr name="absuper_left1IconClickToFinish" format="boolean|reference" />
<attr name="absuper_left1Text" format="string|dimension" />
<attr name="absuper_left1TextSize" format="dimension|reference" />
<attr name="absuper_left1TextColor" format="color|reference" />
<attr name="absuper_left1TextPadding" format="dimension|reference" />
<attr name="absuper_left1TextPaddingLeft" format="dimension|reference" />
<attr name="absuper_left1TextPaddingRight" format="dimension|reference" />
<attr name="absuper_left1TextPaddingTop" format="dimension|reference" />
<attr name="absuper_left1TextPaddingBottom" format="dimension|reference" />
<attr name="absuper_left1TextMargin" format="dimension|reference" />
<attr name="absuper_left1TextMarginLeft" format="dimension|reference" />
<attr name="absuper_left1TextMarginRight" format="dimension|reference" />
<attr name="absuper_left1TextMarginTop" format="dimension|reference" />
<attr name="absuper_left1TextMarginBottom" format="dimension|reference" />
<attr name="absuper_left1Icon" format="reference" />
<attr name="absuper_left1IconColor" format="color|reference" />
<attr name="absuper_left1IconPadding" format="dimension|reference" />
<attr name="absuper_left1IconPaddingLeft" format="dimension|reference" />
<attr name="absuper_left1IconPaddingRight" format="dimension|reference" />
<attr name="absuper_left1IconPaddingTop" format="dimension|reference" />
<attr name="absuper_left1IconPaddingBottom" format="dimension|reference" />
<attr name="absuper_left1IconMargin" format="dimension|reference" />
<attr name="absuper_left1IconMarginLeft" format="dimension|reference" />
<attr name="absuper_left1IconMarginRight" format="dimension|reference" />
<attr name="absuper_left1IconMarginTop" format="dimension|reference" />
<attr name="absuper_left1IconMarginBottom" format="dimension|reference" />
<!--省略左侧2~4的配置-->
<attr name="absuper_left5TextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_left5TextClickToFinish" format="boolean|reference" />
<attr name="absuper_left5IconClickToFinish" format="boolean|reference" />
<attr name="absuper_left5Text" format="string|dimension" />
<attr name="absuper_left5TextSize" format="dimension|reference" />
<attr name="absuper_left5TextColor" format="color|reference" />
<attr name="absuper_left5TextPadding" format="dimension|reference" />
<attr name="absuper_left5TextPaddingLeft" format="dimension|reference" />
<attr name="absuper_left5TextPaddingRight" format="dimension|reference" />
<attr name="absuper_left5TextPaddingTop" format="dimension|reference" />
<attr name="absuper_left5TextPaddingBottom" format="dimension|reference" />
<attr name="absuper_left5TextMargin" format="dimension|reference" />
<attr name="absuper_left5TextMarginLeft" format="dimension|reference" />
<attr name="absuper_left5TextMarginRight" format="dimension|reference" />
<attr name="absuper_left5TextMarginTop" format="dimension|reference" />
<attr name="absuper_left5TextMarginBottom" format="dimension|reference" />
<attr name="absuper_left5Icon" format="reference" />
<attr name="absuper_left5IconColor" format="color|reference" />
<attr name="absuper_left5IconPadding" format="dimension|reference" />
<attr name="absuper_left5IconPaddingLeft" format="dimension|reference" />
<attr name="absuper_left5IconPaddingRight" format="dimension|reference" />
<attr name="absuper_left5IconPaddingTop" format="dimension|reference" />
<attr name="absuper_left5IconPaddingBottom" format="dimension|reference" />
<attr name="absuper_left5IconMargin" format="dimension|reference" />
<attr name="absuper_left5IconMarginLeft" format="dimension|reference" />
<attr name="absuper_left5IconMarginRight" format="dimension|reference" />
<attr name="absuper_left5IconMarginTop" format="dimension|reference" />
<attr name="absuper_left5IconMarginBottom" format="dimension|reference" />

<attr name="absuper_right1TextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_right1TextClickToFinish" format="boolean|reference" />
<attr name="absuper_right1IconClickToFinish" format="boolean|reference" />
<attr name="absuper_right1Text" format="string|dimension" />
<attr name="absuper_right1TextSize" format="dimension|reference" />
<attr name="absuper_right1TextColor" format="color|reference" />
<attr name="absuper_right1TextPadding" format="dimension|reference" />
<attr name="absuper_right1TextPaddingLeft" format="dimension|reference" />
<attr name="absuper_right1TextPaddingRight" format="dimension|reference" />
<attr name="absuper_right1TextPaddingTop" format="dimension|reference" />
<attr name="absuper_right1TextPaddingBottom" format="dimension|reference" />
<attr name="absuper_right1TextMargin" format="dimension|reference" />
<attr name="absuper_right1TextMarginLeft" format="dimension|reference" />
<attr name="absuper_right1TextMarginRight" format="dimension|reference" />
<attr name="absuper_right1TextMarginTop" format="dimension|reference" />
<attr name="absuper_right1TextMarginBottom" format="dimension|reference" />
<attr name="absuper_right1Icon" format="reference" />
<attr name="absuper_right1IconColor" format="color|reference" />
<attr name="absuper_right1IconPadding" format="dimension|reference" />
<attr name="absuper_right1IconPaddingLeft" format="dimension|reference" />
<attr name="absuper_right1IconPaddingRight" format="dimension|reference" />
<attr name="absuper_right1IconPaddingTop" format="dimension|reference" />
<attr name="absuper_right1IconPaddingBottom" format="dimension|reference" />
<attr name="absuper_right1IconMargin" format="dimension|reference" />
<attr name="absuper_right1IconMarginLeft" format="dimension|reference" />
<attr name="absuper_right1IconMarginRight" format="dimension|reference" />
<attr name="absuper_right1IconMarginTop" format="dimension|reference" />
<attr name="absuper_right1IconMarginBottom" format="dimension|reference" />
<!--省略右侧2~4的配置-->
<attr name="absuper_right5TextStyle" format="enum">
    <enum name="normal" value="0" />
    <enum name="bold" value="1" />
</attr>
<attr name="absuper_right5TextClickToFinish" format="boolean|reference" />
<attr name="absuper_right5IconClickToFinish" format="boolean|reference" />
<attr name="absuper_right5Text" format="string|dimension" />
<attr name="absuper_right5TextSize" format="dimension|reference" />
<attr name="absuper_right5TextColor" format="color|reference" />
<attr name="absuper_right5TextPadding" format="dimension|reference" />
<attr name="absuper_right5TextPaddingLeft" format="dimension|reference" />
<attr name="absuper_right5TextPaddingRight" format="dimension|reference" />
<attr name="absuper_right5TextPaddingTop" format="dimension|reference" />
<attr name="absuper_right5TextPaddingBottom" format="dimension|reference" />
<attr name="absuper_right5TextMargin" format="dimension|reference" />
<attr name="absuper_right5TextMarginLeft" format="dimension|reference" />
<attr name="absuper_right5TextMarginRight" format="dimension|reference" />
<attr name="absuper_right5TextMarginTop" format="dimension|reference" />
<attr name="absuper_right5TextMarginBottom" format="dimension|reference" />
<attr name="absuper_right5Icon" format="reference" />
<attr name="absuper_right5IconColor" format="color|reference" />
<attr name="absuper_right5IconPadding" format="dimension|reference" />
<attr name="absuper_right5IconPaddingLeft" format="dimension|reference" />
<attr name="absuper_right5IconPaddingRight" format="dimension|reference" />
<attr name="absuper_right5IconPaddingTop" format="dimension|reference" />
<attr name="absuper_right5IconPaddingBottom" format="dimension|reference" />
<attr name="absuper_right5IconMargin" format="dimension|reference" />
<attr name="absuper_right5IconMarginLeft" format="dimension|reference" />
<attr name="absuper_right5IconMarginRight" format="dimension|reference" />
<attr name="absuper_right5IconMarginTop" format="dimension|reference" />
<attr name="absuper_right5IconMarginBottom" format="dimension|reference" />

实现细节

好了，下面上干货。还是从整个层级划分开始说起吧。

先从布局结构重新看下层级划分

FrameLayout（ActionBarEx本身，继承自FrameLayout）
- ImageView或者自定义布局（背景层BackgroundLayer）
- LinearLayout（主体层ActionBar）
  - View（状态栏StatusBar）
  - FrameLayout（标题栏TitleBar）
  - View（底部分割线BottomLine）
- 自定义布局（前景层ForegroundLayer）

这样是不是对整个结构有了一个更清晰的认识。

从代码上看主要的两个功能

ActionBarEx（自定义控价，负责显示布局）
StatusBarUtils（负责系统状态栏的沉浸和图标亮色暗色模式切换）

来先看下ActionBarEx的自定义过程

先看下构造方法都干了那些事

public ActionBarEx(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    this.mContext = context;
    mDisplayInfoUtils = DisplayInfoUtils.getInstance(context);
    mStatusBarHeight = mDisplayInfoUtils.getStatusBarHeight();
    initAttrs(attrs);
    makeImmersion();
    initView();
}

可以看到初始化了一个DisplayInfoUtils对象，获取了下系统状态栏的高度。

然后调用了3个方法，下面一个一个看下：

initAttrs(AttributeSet attrs)

主要为获取了自定义属性，设置默认值。这都是自定义View的常规操作。

protected void initAttrs(AttributeSet attrs) {
    TypedArray typedArray = mContext.obtainStyledAttributes(attrs, R.styleable.ActionBarEx);

    float titleBarHeightDef = mContext.getResources().getDimension(R.dimen.title_bar_height_def);
    float bottomLineHeightDef = mContext.getResources().getDimension(R.dimen.bottom_line_height_def);
    int bottomLineColorDef = ContextCompat.getColor(mContext, R.color.bottom_line_color_def);
    int statusBarColorDef = ContextCompat.getColor(mContext, R.color.status_bar_color_def);

    mAutoImmersion = typedArray.getBoolean(R.styleable.ActionBarEx_ab_auto_immersion, true);
    mBackgroundLayerLayoutRes = typedArray.getResourceId(R.styleable.ActionBarEx_ab_background_layer_layout, 0);
    mBackgroundLayerImageRes = typedArray.getResourceId(R.styleable.ActionBarEx_ab_background_layer_image_res, 0);
    mStatusBarVisible = typedArray.getBoolean(R.styleable.ActionBarEx_ab_status_bar_visible, true);
    mStatusBarDarkMode = typedArray.getInt(R.styleable.ActionBarEx_ab_status_bar_mode, STATUS_BAR_MODE_LIGHT) == STATUS_BAR_MODE_DARK;
    mStatusBarColor = typedArray.getColor(R.styleable.ActionBarEx_ab_status_bar_color, statusBarColorDef);
    mTitleBarLayoutRes = typedArray.getResourceId(R.styleable.ActionBarEx_ab_title_bar_layout, 0);
    mTitleBarHeight = (int) typedArray.getDimension(R.styleable.ActionBarEx_ab_title_bar_height, titleBarHeightDef);
    mBottomLineHeight = (int) typedArray.getDimension(R.styleable.ActionBarEx_ab_bottom_line_height, bottomLineHeightDef);
    mBottomLineColor = typedArray.getColor(R.styleable.ActionBarEx_ab_bottom_line_color, bottomLineColorDef);
    mForegroundLayerLayoutRes = typedArray.getResourceId(R.styleable.ActionBarEx_ab_foreground_layer_layout, 0);

    typedArray.recycle();
}

makeImmersion()

看名字可以知道是设置沉浸模式，先贴代码：

private void makeImmersion() {
    if (!mAutoImmersion) {
        return;
    }
    Activity activity = getActivity();
    if (activity == null) {
        return;
    }
    setSystemStatusBar(activity);
    hintSystemActionBar(activity);
}

看最下面2行，分别设置了系统沉浸状态栏和隐藏一同自带的导航栏。

具体如何实现状态栏沉浸的，我就不多介绍了，都是百度的一些零零散散的方法，和看GitHub上一些大神的代码，针对小米魅族VIVO做了适配。并不能保证所有系统都有效。如果你有更好的适配方案，欢迎讨论，或者你可以让mAutoImmersion=false来关闭自动适配，去Activity实现自己的方法

initView()

这个方法是本项目的重点，但很简单，没什么难的。

private void initView() {
    // 1 初始化BackgroundLayer
    // 1.1 初始化背景图
    if (mBackgroundLayerLayoutRes > 0){
        mBackgroundLayer = inflate(getContext(), mBackgroundLayerLayoutRes, null);
        mBackgroundLayer.setLayoutParams(makeLayerLayoutParams());
        addView(mBackgroundLayer);
    } else {
        if (mBackgroundLayerImageRes > 0) {
            ImageView actionBarImageView = new ImageView(mContext);
            actionBarImageView.setLayoutParams(makeLayerLayoutParams());
            actionBarImageView.setImageResource(mBackgroundLayerImageRes);
            actionBarImageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
            addView(actionBarImageView);
        }
    }

    // 2 初始ContentLayer（ActionBar）
    mActionBar = (LinearLayout) inflate(getContext(), R.layout.action_bar, null);
    mActionBar.setLayoutParams(makeLayoutParamsWithHeight(getActionBarHeight()));
    // 2.1 初始StatusBar
    mStatusBar = mActionBar.findViewById(R.id.status_bar);
    mStatusBar.setLayoutParams(makeLayoutParamsWithHeight(mStatusBarHeight));
    mStatusBar.setBackgroundColor(mStatusBarColor);
    mStatusBar.setVisibility(mStatusBarVisible ? VISIBLE : GONE);
    // 2.2 初始TitleBar
    mTitleBar = mActionBar.findViewById(R.id.title_bar);
    mTitleBar.setClickable(true);
    mTitleBar.setFocusable(true);
    mTitleBar.setFocusableInTouchMode(true);
    mTitleBar.setLayoutParams(makeLayoutParamsWithHeight(mTitleBarHeight));
    mTitleBarChild = inflateTitleBar();
    if (mTitleBarChild != null) {
        mTitleBar.addView(mTitleBarChild);
    }
    // 2.3 初始BottomLine
    mBottomLine = mActionBar.findViewById(R.id.bottom_line);
    mBottomLine.setLayoutParams(makeLayoutParamsWithHeight(mBottomLineHeight));
    mBottomLine.setBackgroundColor(mBottomLineColor);
    addView(mActionBar);

    // 3 初始ForegroundLayer
    if (mForegroundLayerLayoutRes > 0) {
        mForegroundLayer = inflate(getContext(), mForegroundLayerLayoutRes, null);
        mForegroundLayer.setLayoutParams(makeLayerLayoutParams());
        addView(mForegroundLayer);
    }
}

这里又有一个inflateTitleBar()方法，就是为了继承自定义而加的，它是这样实现的

protected View inflateTitleBar() {
    if (mTitleBarLayoutRes > 0) {
        return inflate(getContext(), mTitleBarLayoutRes, null);
    }
    return null;
}

然后是。？还有然后？哦，没了

一共就干了这么点事，没有实现任何效果，完全是一个空架子。是的，任何效果都需要自定义。

这个ActionBarEx只是划分了下导航栏的层级，限定了下各层级的功能。

当然每个项目肯定都有一个固定风格的设计，不可能每次使用都在布局中添加一个ActionBarEx，再引用一个自定义布局，再在代码中getView拿到控件初始化和绑定事件。稍微复杂点的肯定都是要自定义子类封装的，具体可以参考上面的自定义子类或者直接参考SimpleActionBar或者SearchActionBar的实现。

写在最后

这个完全是个人项目，有几点有必要说明下：

觉得好用的欢迎给个Star（GitHub）
发现任何BUG欢迎留言或者留个Issues（Issues）
任何转载请注明出处
还没想到，未完待续

如果你觉得App还不错，就请我喝杯咖啡吧~