Android工具栏中是否可以同时具有后退和菜单按钮？

Question

In iOS Amazon app, they implemented both back and menu button together. Is it possible to implement the same in Android?

Answer 1

You can create a custom toolbar design in XML as

<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:minHeight="?attr/actionBarSize">

    <ImageView
       android:id="@+id/backButton"
       android:background="@drawable/back_icon"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />

    <ImageView
       android:id="@+id/homeButton" 
       android:background="@drawable/menu_icon"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />
</android.support.v7.widget.Toolbar>

Then set listeners to perform task such as openDrawer and goto previous screen.

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
ImageView homeButton = (ImageView) toolbar.findViewById(R.id.homeButton);

homeButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
       drawerLayout.openDrawer(GravityCompat.START);
    }
});

Answer 2

If you want something special create it by your own :)

If you're using latest design library its possible to create your custom toolbar panel and add any item you want there.

I was achieving that behaviour this way:

main_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
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">

<!-- this is top bar where you need to add both drawer toggle and back button-->
<include
    layout="@layout/app_bar_navigation"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<!-- Content of sliding menu-->
<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="end"
    android:background="@color/primary_blue_dark"
    android:fitsSystemWindows="true">

    <!-- Custom menu list. Feel free to customize it as listview-->
    <ListView
        android:id="@+id/lv_menu"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</android.support.design.widget.NavigationView>

layout/app_bar_navigation.xml

<?xml version="1.0" encoding="utf-8"?>
<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:fitsSystemWindows="true"
android:orientation="vertical">

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="@dimen/nav_header_size_pre5"
    android:background="@color/primary_blue_dark"
    android:padding="6dp">

    <!-- This is where you need to place those items. I had title and imageview there. You may add anything-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:layout_centerHorizontal="true"
        android:gravity="center">
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:src="@drawable/ic_logo"
            android:adjustViewBounds="true"/>

        <TextView
            android:id="@+id/tv_app_logo"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="@string/app_name"
            android:layout_marginLeft="@dimen/activity_horizontal_margin"
            android:textColor="@color/primary_yellow"
            android:textSize="@dimen/middle_text"
            android:gravity="center"/>
    </LinearLayout>


    <ImageView
        android:id="@+id/iv_drawer_open"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:src="@drawable/ic_drawer_toggle"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:tint="@color/primary_white"/>
</RelativeLayout>

<!-- This is main content-->
<include layout="@layout/content_navigation" />

Answer 3

you can create a Toolbar with custom layout like this:

<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize">

    <ImageView
       android:id="@+id/backButton"
       android:background="@drawable/ic_back_icon"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />

    <ImageView
       android:id="@+id/hamburgerButton" 
       android:background="@drawable/ic_home_icon"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />
 <ImageView
       android:id="@+id/logo" 
       android:background="@drawable/logo"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />
</android.support.v7.widget.Toolbar>

Answer 4

Yes absolutely possible you just have to hide the default toolbar by doing following in your Styles.xml :

 <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">

Then you have to create youe own xml file of toolbar let's name it custom_toolbar.xml

 <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp">

    <ImageView
       android:id="@+id/back_button"
       android:background="@drawable/back_icon"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />

    <ImageView
       android:id="@+id/menu_button" 
       android:background="@drawable/menu_icon"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/toolbar_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginRight="10dp"
        android:textColor="@android:color/black"
        android:textSize="@dimen/actionbar_textsize"
        android:textStyle="bold" />
</android.support.v7.widget.Toolbar>

Then you have to add that toolbar in your activity add toolbar like below

  <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"
    tools:context="betasoft.com.blankblank.ui.ui.activity.SignUp">

    <include
        android:id="@+id/toolbar"
        layout="@layout/custom_toolbar" />

    <FrameLayout
        android:id="@+id/main_data"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar />

</RelativeLayout>

then you can access the toolbar in your activity like :

 Toolbar mToolBar;
 ImageView mToolBarBack,mToolBarMenu;
TextView mToolBarTitle;

//Inside onCreate

mToolBar = (Toolbar) findViewById(R.id.toolbar);
mToolBarBack = (ImageView) mToolBar.findViewById(R.id.toolbar_back);
mToolBarTitle = (TextView) mToolBar.findViewById(R.id.toolbar_title);
mToolBarMenu= (TextView) mToolBar.findViewById(R.id.menu_button);

// then create a public method so like below so that you can access the toolbar content at any fragment

 public void setActionBarTitle(String title) {
        mToolBarTitle.setText(title);
    }