问题
My app is currently implemented with the Single activity approach (Using navigation architecture component with one main activity and several fragments). I am currently using a toolbar with a drawer.
My app currently look like this:
However in the modern google apps (Google photos, gmail etc..), Google has implemented a new way of navigating using a search field with an implemented drawer in it as shown below:
I want to replace this toolbar with a search bar and the drawer menu exactly like the Google apps.
Can someone help me with some code on how to achieve this?
My main activity is as follows:
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<androidx.drawerlayout.widget.DrawerLayout
android:id="@+id/Drawer_Main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.main.main.MainActivity">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<com.google.android.material.appbar.MaterialToolbar
android:id="@+id/Toolbar_Main"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary">
<TextView
android:id="@+id/Toolbar_Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/app_name"
style="@style/Locky.Toolbar.TitleText" />
</com.google.android.material.appbar.MaterialToolbar>
<androidx.core.widget.NestedScrollView
android:id="@+id/Nested_Scroll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="?attr/actionBarSize"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<fragment
android:id="@+id/Navigation_Host"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="@navigation/navigation_drawer_main" />
</androidx.core.widget.NestedScrollView>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:orientation="vertical">
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/FAB_Account"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginEnd="16dp"
android:layout_marginStart="16dp"
android:visibility="invisible"
app:srcCompat="@drawable/ic_account"
style="@style/Locky.FloatingActionButton.Mini" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/FAB_Card"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginEnd="16dp"
android:layout_marginStart="16dp"
android:visibility="invisible"
app:srcCompat="@drawable/ic_credit_card"
style="@style/Locky.FloatingActionButton.Mini" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/FAB_Add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/fab_margin"
android:layout_marginEnd="@dimen/fab_margin"
android:layout_marginBottom="@dimen/fab_margin"
app:srcCompat="@drawable/ic_add"
style="@style/Locky.FloatingActionButton.Normal"/>
</LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<com.google.android.material.navigation.NavigationView
android:id="@+id/Navigation_View"
android:layout_width="280dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:clipToPadding="false"
app:itemTextAppearance="@style/Locky.TextAppearance.Drawer.Item"
app:menu="@menu/menu_drawer_main"
app:headerLayout="@layout/drawer_header"
style="@style/Locky.Widget.Custom.NavigationView" />
</androidx.drawerlayout.widget.DrawerLayout>
</layout>
Can someone please guide me with some code on how to implement this kind of search bar?
回答1:
I can't tell you how to design that toolbar but this project maybe helps you to handle toolbar's back button and home button with drawer layout.
https://github.com/furkanaskin/Weatherapp/blob/master/app/src/main/java/com/faskn/app/weatherapp/ui/main/MainActivity.kt
回答2:
if you are still looking for a way to implement a gmail style search bar with an app drawer icon, use the toolbar, simply add navigation icon and wrap an editText inside:
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:navigationIcon="@drawable/ic_menu">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</androidx.appcompat.widget.Toolbar>
Then set the toolbar in the activity:
val toolbar: Toolbar = findViewById(R.id.toolbar)
setSupportActionBar(toolbar)
And implement the onOptionsItemSelect listener:
override fun onOptionsItemSelected(item: MenuItem): Boolean {
// do desired stuff here
return super.onOptionsItemSelected(item)
}
If you also want to have the floating style and disappearing behavior, wrap the toolbar in an appBarLayout and set app:layout_scrollFlags="scroll|enterAlways|snap":
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginHorizontal="24dp"
android:layout_marginTop="2dp"
android:background="@android:color/transparent">
app:elevation="0dp">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="4dp"
app:navigationIcon="@drawable/ic_menu"
app:contentInsetStartWithNavigation="0dp"
app:layout_scrollFlags="scroll|enterAlways|snap">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/transparent"/>
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
The following details to mimic the style and the behavior are worth to mention:
appBarLayout
- margin horizontal, to have the bar not cover the whole top
- background set to a round rectangle shape
- margin Top to have a little space
- eleveation to 0dp so there is no shadow of the appBarLayout
toolbar
- app:contentInsetStartWithNavigation="0dp", otherwise the margin is too big between icon and editText
EditText
- background transparent so the underline will disappear
edit: Almost forgot! Very important point: The parent layout has to be CoordinatorLayout, otherwise there will be no reactions to scrolling inside the recyclerview edit2: changed eleveation of the appbar layout to 0dp so there wont be any shadow
来源：https://stackoverflow.com/questions/61322639/android-google-search-bar-with-drawer