Add CollapsingToolbarBaseFragment for implementing collapsing toolbar.

In apps following the pattern to do all the things in fragments, and
possibly loading different fragments for different form factors, their
activity would need to remain a stub and can't contain phone-only
layout, making CollapsingToolbarBaseActivity unsuitable for them. So
add a CollapsingToolbarBaseFragment for integrating the same
functionality in fragments.

The layout files are also moved to be under the same name, but
different content depending on the platform version, to simplify the
logic loading them.

Bug: 177638625
Test: manual
Change-Id: Ie9e2a147dd4bd2c1ee3924b1afc4c10a6f735e59
This commit is contained in:
Hai Zhang
2021-03-09 04:53:14 -08:00
parent 4993be52c7
commit e1f6cb431e
6 changed files with 154 additions and 83 deletions

View File

@@ -23,5 +23,6 @@ android_library {
apex_available: [
"//apex_available:platform",
"com.android.cellbroadcast",
"com.android.permission",
],
}

View File

@@ -0,0 +1,60 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
~ Copyright (C) 2021 The Android Open Source Project
~
~ Licensed under the Apache License, Version 2.0 (the "License");
~ you may not use this file except in compliance with the License.
~ You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing, software
~ distributed under the License is distributed on an "AS IS" BASIS,
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
~ See the License for the specific language governing permissions and
~ limitations under the License.
-->
<androidx.coordinatorlayout.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/content_parent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:transitionGroup="true">
<com.google.android.material.appbar.AppBarLayout
android:id="@+id/app_bar"
android:layout_width="match_parent"
android:layout_height="180dp"
android:theme="@style/Theme.CollapsingToolbar.Settings">
<com.android.settingslib.collapsingtoolbar.AdjustableToolbarLayout
android:id="@+id/collapsing_toolbar"
android:background="?android:attr/colorPrimary"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:maxLines="3"
app:contentScrim="?android:attr/colorPrimary"
app:collapsedTitleTextAppearance="@style/CollapsingToolbarTitle.Collapsed"
app:statusBarScrim="?android:attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:expandedTitleMarginStart="18dp"
app:expandedTitleMarginEnd="18dp"
app:toolbarId="@id/action_bar">
<Toolbar
android:id="@+id/action_bar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="?android:attr/actionBarTheme"
app:layout_collapseMode="pin"/>
</com.android.settingslib.collapsingtoolbar.AdjustableToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

View File

@@ -14,47 +14,23 @@
See the License for the specific language governing permissions and
limitations under the License.
-->
<androidx.coordinatorlayout.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
<!-- The main content view -->
<LinearLayout
android:id="@+id/content_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:transitionGroup="true">
<com.google.android.material.appbar.AppBarLayout
android:id="@+id/app_bar"
android:fitsSystemWindows="true"
android:transitionGroup="true"
android:orientation="vertical">
<Toolbar
android:id="@+id/action_bar"
style="?android:attr/actionBarStyle"
android:layout_width="match_parent"
android:layout_height="180dp"
android:theme="@style/Theme.CollapsingToolbar.Settings">
<com.android.settingslib.collapsingtoolbar.AdjustableToolbarLayout
android:id="@+id/collapsing_toolbar"
android:background="?android:attr/colorPrimary"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:maxLines="3"
app:contentScrim="?android:attr/colorPrimary"
app:collapsedTitleTextAppearance="@style/CollapsingToolbarTitle.Collapsed"
app:statusBarScrim="?android:attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:expandedTitleMarginStart="18dp"
app:expandedTitleMarginEnd="18dp"
app:toolbarId="@id/action_bar">
<Toolbar
android:id="@+id/action_bar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="?android:attr/actionBarTheme"
app:layout_collapseMode="pin"/>
</com.android.settingslib.collapsingtoolbar.AdjustableToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
android:layout_height="wrap_content"
android:theme="?android:attr/actionBarTheme" />
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
android:layout_height="match_parent"/>
</LinearLayout>

View File

@@ -1,36 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright (C) 2021 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- The main content view -->
<LinearLayout
android:id="@+id/content_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:transitionGroup="true"
android:orientation="vertical">
<Toolbar
android:id="@+id/action_bar"
style="?android:attr/actionBarStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="?android:attr/actionBarTheme" />
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>

View File

@@ -24,7 +24,6 @@ import android.view.ViewGroup;
import android.widget.Toolbar;
import androidx.annotation.Nullable;
import androidx.core.os.BuildCompat;
import androidx.fragment.app.FragmentActivity;
import com.google.android.material.appbar.CollapsingToolbarLayout;
@@ -41,15 +40,8 @@ public class CollapsingToolbarBaseActivity extends FragmentActivity {
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// TODO(b/181723278): Update the version check after SDK for S is finalized
// The collapsing toolbar is only supported if the android platform version is S or higher.
// Otherwise the regular action bar will be shown.
if (BuildCompat.isAtLeastS()) {
super.setContentView(R.layout.collapsing_toolbar_base_layout);
mCollapsingToolbarLayout = findViewById(R.id.collapsing_toolbar);
} else {
super.setContentView(R.layout.toolbar_base_layout);
}
super.setContentView(R.layout.collapsing_toolbar_base_layout);
mCollapsingToolbarLayout = findViewById(R.id.collapsing_toolbar);
final Toolbar toolbar = findViewById(R.id.action_bar);
setActionBar(toolbar);

View File

@@ -0,0 +1,78 @@
/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settingslib.collapsingtoolbar;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.Toolbar;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import com.google.android.material.appbar.CollapsingToolbarLayout;
/**
* A base fragment that has a collapsing toolbar layout for enabling the collapsing toolbar design.
*/
public abstract class CollapsingToolbarBaseFragment extends Fragment {
@Nullable
private CollapsingToolbarLayout mCollapsingToolbarLayout;
@NonNull
private Toolbar mToolbar;
@NonNull
private FrameLayout mContentFrameLayout;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.collapsing_toolbar_base_layout, container,
false);
mCollapsingToolbarLayout = view.findViewById(R.id.collapsing_toolbar);
mToolbar = view.findViewById(R.id.action_bar);
mContentFrameLayout = view.findViewById(R.id.content_frame);
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
requireActivity().setActionBar(mToolbar);
}
/**
* Return the collapsing toolbar layout.
*/
@Nullable
public CollapsingToolbarLayout getCollapsingToolbarLayout() {
return mCollapsingToolbarLayout;
}
/**
* Return the content frame layout.
*/
@NonNull
public FrameLayout getContentFrameLayout() {
return mContentFrameLayout;
}
}