[英]CoordinatorLayout collapse Toolbar in Activity from Fragment
[英]Hide Toolbar in activity from fragment using CoordinatorLayout
美好的一天,我有一個HomeActivity
與Toolbar
和ViewPager
。 在ViewPager
有帶有RecyclerView
Fragment
。 我想在Fragment
隱藏ToolBar
onScrolling RecyclerView
。 我使用CoordinatorLayout
做到了這一點,但它不起作用。 有任何想法嗎 ?
activity_home.xml
:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activities.HomeActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<android.support.design.widget.AppBarLayout
android:id="@+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"/>
</android.support.design.widget.AppBarLayout>
<com.astuetz.PagerSlidingTabStrip
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:pstsIndicatorColor="@color/mantis"/>
<android.support.v4.view.ViewPager
android:id="@+id/vpPager"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"/>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
fragment_home.xml
:
<FrameLayout 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"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".fragments.BusFragment">
<!-- TODO: Update blank fragment layout -->
<android.support.v7.widget.RecyclerView
android:id="@+id/busRecyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"/>
</FrameLayout>
我認為我應該對RecyclerView
,就像在ViewPager
應用程式:layout_behavior = “@串/ appbar_scrolling_view_behavior”
也許有選擇使其以編程方式進行? 還是我的想法根本不好? 無論如何,謝謝!
刪除LinearLayout
作為父AppBarLayout
和移動PagerSlidingTabStrip
內AppBarLayout
。
<android.support.design.widget.CoordinatorLayout
android:id="@+id/coordinatorLayout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/appBarLayout"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"/>
<com.astuetz.PagerSlidingTabStrip
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:pstsIndicatorColor="@color/mantis"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/vpPager"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"/>
</android.support.design.widget.CoordinatorLayout>
此示例將為您工作。如果要使用此示例,只需將其復制到您自己的項目中,並將Tablayout替換為PagerslidingTabstrip。
這里ist acitivitymain.xml
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/rootLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="lh.com.myapplicationstack.MainActivity"
android:background="#e8e8e8">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_scrollFlags="scroll|snap"/>
<android.support.design.widget.TabLayout
android:id="@+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_scrollFlags="snap|enterAlways"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:background="#e7e7e7" />
<!-- Put the part below this comment into your Fragment.xml(Wrap it with a Linearlayout) -->
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:id="@+id/Nested_scroll_view"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:background="#FAFAFA"
android:padding="4dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Item1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Item2"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Item3"/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<!-- Put the part above this comment into your Fragment.xml(Wrap it with a Linearlayout)-->
</android.support.design.widget.CoordinatorLayout>
這是MainActivity.class
public class MainActivity extends AppCompatActivity {
CoordinatorLayout rootLayout;
Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initInstances();
}
private void initInstances() {
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setHomeButtonEnabled(true);
rootLayout = (CoordinatorLayout) findViewById(R.id.rootLayout);
}
}
這是styles.xml,它刪除了標准工具欄。
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#1565C0</item>
<item name="colorPrimaryDark">#0d47a1</item>
<item name="android:textColorSecondary">#FF4081</item>
<item name="colorAccent">#FF4081</item>
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.WithoutActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
這是您使用自定義樣式的清單
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="lh.com.myapplicationstack" >
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme.WithoutActionBar" >
<activity android:name=".MainActivity" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
只需將所有這些文件復制到您的項目中,然后根據需要對其進行自定義即可。
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