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/*
* 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.app.ActionBar;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toolbar;
import androidx.annotation.Nullable;
import androidx.fragment.app.FragmentActivity;
import com.android.settingslib.utils.BuildCompatUtils;
import com.android.settingslib.widget.R;
import com.google.android.material.appbar.AppBarLayout;
import com.google.android.material.appbar.CollapsingToolbarLayout;
/**
* A base Activity that has a collapsing toolbar layout is used for the activities intending to
* enable the collapsing toolbar function.
*/
public class CollapsingToolbarBaseActivity extends FragmentActivity {
private class DelegateCallback implements CollapsingToolbarDelegate.HostCallback {
@Nullable
@Override
public ActionBar setActionBar(Toolbar toolbar) {
CollapsingToolbarBaseActivity.super.setActionBar(toolbar);
return CollapsingToolbarBaseActivity.super.getActionBar();
}
@Override
public void setOuterTitle(CharSequence title) {
CollapsingToolbarBaseActivity.super.setTitle(title);
}
}
private CollapsingToolbarDelegate mToolbardelegate;
private int mCustomizeLayoutResId = 0;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (mCustomizeLayoutResId > 0 && !BuildCompatUtils.isAtLeastS()) {
super.setContentView(mCustomizeLayoutResId);
return;
}
View view = getToolbarDelegate().onCreateView(getLayoutInflater(), null);
super.setContentView(view);
}
@Override
public void setContentView(int layoutResID) {
final ViewGroup parent = (mToolbardelegate == null) ? findViewById(R.id.content_frame)
: mToolbardelegate.getContentFrameLayout();
if (parent != null) {
parent.removeAllViews();
}
LayoutInflater.from(this).inflate(layoutResID, parent);
}
@Override
public void setContentView(View view) {
final ViewGroup parent = (mToolbardelegate == null) ? findViewById(R.id.content_frame)
: mToolbardelegate.getContentFrameLayout();
if (parent != null) {
parent.addView(view);
}
}
@Override
public void setContentView(View view, ViewGroup.LayoutParams params) {
final ViewGroup parent = (mToolbardelegate == null) ? findViewById(R.id.content_frame)
: mToolbardelegate.getContentFrameLayout();
if (parent != null) {
parent.addView(view, params);
}
}
/**
* This method allows an activity to replace the default layout with a customize layout. Notice
* that it will no longer apply the features being provided by this class when this method
* gets called.
*/
protected void setCustomizeContentView(int layoutResId) {
mCustomizeLayoutResId = layoutResId;
}
@Override
public void setTitle(CharSequence title) {
getToolbarDelegate().setTitle(title);
}
@Override
public void setTitle(int titleId) {
setTitle(getText(titleId));
}
@Override
public boolean onNavigateUp() {
if (!super.onNavigateUp()) {
finishAfterTransition();
}
return true;
}
/**
* Returns an instance of collapsing toolbar.
*/
@Nullable
public CollapsingToolbarLayout getCollapsingToolbarLayout() {
return getToolbarDelegate().getCollapsingToolbarLayout();
}
/**
* Return an instance of app bar.
*/
@Nullable
public AppBarLayout getAppBarLayout() {
return getToolbarDelegate().getAppBarLayout();
}
private CollapsingToolbarDelegate getToolbarDelegate() {
if (mToolbardelegate == null) {
mToolbardelegate = new CollapsingToolbarDelegate(new DelegateCallback());
}
return mToolbardelegate;
}
}
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