blob: 84a6b36e3d7c2a818ec38026b93e6c1cfd5f439e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* 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.NonNull;
import androidx.annotation.Nullable;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.fragment.app.FragmentActivity;
import com.android.settingslib.utils.BuildCompatUtils;
import com.google.android.material.appbar.AppBarLayout;
import com.google.android.material.appbar.CollapsingToolbarLayout;
import com.google.android.material.resources.TextAppearanceConfig;
/**
* 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 static final float TOOLBAR_LINE_SPACING_MULTIPLIER = 1.1f;
@Nullable
private CollapsingToolbarLayout mCollapsingToolbarLayout;
@Nullable
private AppBarLayout mAppBarLayout;
private int mCustomizeLayoutResId = 0;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (mCustomizeLayoutResId > 0 && !BuildCompatUtils.isAtLeastS()) {
super.setContentView(mCustomizeLayoutResId);
return;
}
// Force loading font synchronously for collapsing toolbar layout
TextAppearanceConfig.setShouldLoadFontSynchronously(true);
super.setContentView(R.layout.collapsing_toolbar_base_layout);
mCollapsingToolbarLayout = findViewById(R.id.collapsing_toolbar);
mAppBarLayout = findViewById(R.id.app_bar);
if (mCollapsingToolbarLayout != null) {
mCollapsingToolbarLayout.setLineSpacingMultiplier(TOOLBAR_LINE_SPACING_MULTIPLIER);
}
disableCollapsingToolbarLayoutScrollingBehavior();
final Toolbar toolbar = findViewById(R.id.action_bar);
setActionBar(toolbar);
// Enable title and home button by default
final ActionBar actionBar = getActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayShowTitleEnabled(true);
}
}
@Override
public void setContentView(int layoutResID) {
final ViewGroup parent = findViewById(R.id.content_frame);
if (parent != null) {
parent.removeAllViews();
}
LayoutInflater.from(this).inflate(layoutResID, parent);
}
@Override
public void setContentView(View view) {
final ViewGroup parent = findViewById(R.id.content_frame);
if (parent != null) {
parent.addView(view);
}
}
@Override
public void setContentView(View view, ViewGroup.LayoutParams params) {
final ViewGroup parent = findViewById(R.id.content_frame);
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) {
if (mCollapsingToolbarLayout != null) {
mCollapsingToolbarLayout.setTitle(title);
} else {
super.setTitle(title);
}
}
@Override
public void setTitle(int titleId) {
if (mCollapsingToolbarLayout != null) {
mCollapsingToolbarLayout.setTitle(getText(titleId));
} else {
super.setTitle(titleId);
}
}
@Override
public boolean onNavigateUp() {
if (!super.onNavigateUp()) {
finishAfterTransition();
}
return true;
}
/**
* Returns an instance of collapsing toolbar.
*/
@Nullable
public CollapsingToolbarLayout getCollapsingToolbarLayout() {
return mCollapsingToolbarLayout;
}
/**
* Return an instance of app bar.
*/
@Nullable
public AppBarLayout getAppBarLayout() {
return mAppBarLayout;
}
private void disableCollapsingToolbarLayoutScrollingBehavior() {
if (mAppBarLayout == null) {
return;
}
final CoordinatorLayout.LayoutParams params =
(CoordinatorLayout.LayoutParams) mAppBarLayout.getLayoutParams();
final AppBarLayout.Behavior behavior = new AppBarLayout.Behavior();
behavior.setDragCallback(
new AppBarLayout.Behavior.DragCallback() {
@Override
public boolean canDrag(@NonNull AppBarLayout appBarLayout) {
return false;
}
});
params.setBehavior(behavior);
}
}
|
