Могу ли я установить заголовок CollapsingToolbarLayout помощью метода setTitle?
Есть ли способ установить субтитры?
CollapsingToolbarLayout субтитры
Ответ 1
Если вы хотите, чтобы субтитры переходили на Toolbar когда Toolbar AppBar полностью свернута, вы должны создать свой собственный CoordinatorLayout.Behaviour AppBar так: Руководство по Github
Но если вы хотите, чтобы текст заголовка был меньше, когда AppBar вы можете попробовать этот макет:
<android.support.design.widget.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:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="300dp"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="160dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="@+id/header"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/quila2"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:textColor="@android:color/white"
android:layout_marginBottom="32dp"
android:layout_marginEnd="64dp"
android:layout_marginStart="48dp"
app:layout_collapseMode="parallax"
android:layout_gravity="bottom"
android:text="Lorem Ipsum Iran Lorem Ipsum Iran Lorem Ipsum Iran Lorem Ipsum Iran Lorem Ipsum Iran Lorem Ipsum Iran Lorem Ipsum Iran Lorem Ipsum Iran "/>
<android.support.v7.widget.Toolbar
android:id="@+id/anim_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:lineSpacingExtra="8dp"
android:text="@string/lorem"
android:textSize="18sp"/>
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:clickable="true"
android:src="@drawable/abc_ic_search_api_mtrl_alpha"
app:layout_anchor="@+id/appbar"
app:layout_anchorGravity="bottom|right|end" />
</android.support.design.widget.CoordinatorLayout>
Обратите внимание, что здесь я установил высоту AppBar как 300dp а app:expandedTitleMarginBottom 160dp - 160dp поэтому заголовок не будет опускаться и конфликтовать с субтитрами out. В этом примере вы должны динамически устанавливать CollapsingToolbarTitle во время выполнения с помощью collapsingToolbarTitle.setTitle("My Title"); метод.
Результат будет примерно таким:
Ответ 2
Попробуйте что-то вроде , оно работает для меня Я создал пользовательский ViewBehavior
@Override
public boolean layoutDependsOn(CoordinatorLayout parent, HeaderView child, View dependency) {
return dependency instanceof AppBarLayout;
}
@Override
public boolean onDependentViewChanged(CoordinatorLayout parent, HeaderView child, View dependency) {
shouldInitProperties(child, dependency);
int maxScroll = ((AppBarLayout) dependency).getTotalScrollRange();
float percentage = Math.abs(dependency.getY()) / (float) maxScroll;
float childPosition = dependency.getHeight()
+ dependency.getY()
- child.getHeight()
- (getToolbarHeight() - child.getHeight()) * percentage / 2;
childPosition = childPosition - mStartMarginBottom * (1f - percentage);
CoordinatorLayout.LayoutParams lp = (CoordinatorLayout.LayoutParams) child.getLayoutParams();
lp.leftMargin = (int) (percentage * mEndMargintLeft) + mStartMarginLeft;
lp.rightMargin = mMarginRight;
child.setLayoutParams(lp);
child.setY(childPosition);
...
return true;
}
и этот макет
<android.support.design.widget.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:fitsSystemWindows="true"
>
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
>
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="@drawable/img_nature"
app:layout_collapseMode="parallax"
/>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
>
<include
android:id="@+id/toolbar_header_view"
layout="@layout/header_view"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_marginRight="@dimen/header_view_end_margin_right"
android:visibility="gone"
/>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
...
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<include
android:id="@+id/float_header_view"
layout="@layout/header_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="com.subtitlebehavoir.harcopro.simple.ViewBehavior"
/>
</android.support.design.widget.CoordinatorLayout>
Макет ViewHeader:
<?xml version="1.0" encoding="utf-8"?>
<com.subtitlebehavoir.harcopro.simple.HeaderView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<!-- Title -->
<TextView
android:id="@+id/header_view_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="18sp"
/>
<!-- Subtitle -->
<TextView
android:id="@+id/header_view_sub_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="16sp"
/>
</com.subtitlebehavoir.harcopro.simple.HeaderView>
Ответ 3
Поддержка субтитров в CollapsingToolbarLayout - это функция, к которой я также стремлюсь, поэтому я создал библиотеку collapsingtoolbarlayout-subtitle:
Используйте его так же, как и в любом CollapsingToolbarLayout, просто добавьте в него атрибут субтитров:
<android.support.design.widget.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">
<com.hendraanggrian.widget.SubtitleCollapsingToolbarLayout
android:id="@+id/subtitlecollapsingtoolbarlayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentScrim="?colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:subtitle="CollapsingToolbarLayout"
app:title="Subtitle">
<!-- collapsing toolbar content goes here -->
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
app:layout_collapseMode="pin"/>
</com.hendraanggrian.widget.SubtitleCollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<!-- content goes here -->
</android.support.design.widget.CoordinatorLayout>
Ответ 4
Вот модифицированная версия Harco Implmentation (this), приведенная выше, которая также изменит размер заголовка, когда мы развернем и свернем макет.
ViewBehavior.java
public class ViewBehavior extends CoordinatorLayout.Behavior<HeaderView> {
private static final float MAX_SCALE = 0.5f;
private Context mContext;
private int mStartMarginLeft;
private int mEndMargintLeft;
private int mMarginRight;
private int mStartMarginBottom;
private boolean isHide;
public ViewBehavior(Context context, AttributeSet attrs) {
mContext = context;
}
@Override
public boolean layoutDependsOn(CoordinatorLayout parent, HeaderView child, View dependency) {
return dependency instanceof AppBarLayout;
}
@Override
public boolean onDependentViewChanged(CoordinatorLayout parent, HeaderView child, View dependency) {
shouldInitProperties(child, dependency);
int maxScroll = ((AppBarLayout) dependency).getTotalScrollRange();
float percentage = Math.abs(dependency.getY()) / (float) maxScroll;
// Set scale for the title
float size = ((1 - percentage) * MAX_SCALE) + 1;
child.setScaleXTitle(size);
child.setScaleYTitle(size);
// Set position for the header view
float childPosition = dependency.getHeight()
+ dependency.getY()
- child.getHeight()
- (getToolbarHeight() - child.getHeight()) * percentage / 2;
childPosition = childPosition - mStartMarginBottom * (1f - percentage);
CoordinatorLayout.LayoutParams lp = (CoordinatorLayout.LayoutParams) child.getLayoutParams();
lp.leftMargin = (int) (percentage * mEndMargintLeft) + mStartMarginLeft;
lp.rightMargin = mMarginRight;
child.setLayoutParams(lp);
child.setY(childPosition);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
if (isHide && percentage < 1) {
child.setVisibility(View.VISIBLE);
isHide = false;
} else if (!isHide && percentage == 1) {
child.setVisibility(View.GONE);
isHide = true;
}
}
return true;
}
private void shouldInitProperties(HeaderView child, View dependency) {
if (mStartMarginLeft == 0)
mStartMarginLeft = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_start_margin_left);
if (mEndMargintLeft == 0)
mEndMargintLeft = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_end_margin_left);
if (mStartMarginBottom == 0)
mStartMarginBottom = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_start_margin_bottom);
if (mMarginRight == 0)
mMarginRight = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_end_margin_right);
}
public int getToolbarHeight() {
int result = 0;
TypedValue tv = new TypedValue();
if (mContext.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
result = TypedValue.complexToDimensionPixelSize(tv.data, mContext.getResources().getDisplayMetrics());
}
return result;
}
}
HeaderView.java
public class HeaderView extends LinearLayout {
@Bind(R.id.header_view_title)
TextView title;
@Bind(R.id.header_view_sub_title)
TextView subTitle;
public HeaderView(Context context) {
super(context);
}
public HeaderView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public HeaderView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public HeaderView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
ButterKnife.bind(this);
}
public void bindTo(String title) {
bindTo(title, "");
}
public void bindTo(String title, String subTitle) {
hideOrSetText(this.title, title);
hideOrSetText(this.subTitle, subTitle);
}
private void hideOrSetText(TextView tv, String text) {
if (text == null || text.equals(""))
tv.setVisibility(GONE);
else
tv.setText(text);
}
public void setScaleXTitle(float scaleXTitle) {
title.setScaleX(scaleXTitle);
title.setPivotX(0);
}
public void setScaleYTitle(float scaleYTitle) {
title.setScaleY(scaleYTitle);
title.setPivotY(30);
}
}
Ответ 5
У меня тоже была такая же проблема. В итоге я создал LinearLayout, в котором есть заголовок и субтитры, а затем установите расширенный тип TextAppearance прозрачным - эффективно скрывая заголовок панели инструментов при расширении макета. Используя этот подход, панель инструментов обрушивается на LinearLayout и в конце показывает только заголовок в сложенном состоянии.
Полный xml находится здесь:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="@dimen/series_detail_header_height"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:expandedTitleTextAppearance="@style/TransparentText"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_collapseMode="parallax">
<ImageView
android:id="@+id/image_view"
android:layout_width="match_parent"
android:layout_height="@dimen/series_detail_header_image_height"
android:scaleType="centerCrop"/>
<LinearLayout
android:id="@+id/header_text_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?attr/colorPrimary"
android:gravity="center_vertical"
android:minHeight="@dimen/series_detail_text_layout_height"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="10dp"
android:paddingTop="10dp">
<TextView
android:id="@+id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="My title"
android:textColor="@android:color/white"
android:textSize="24sp"/>
<TextView
android:id="@+id/subtitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="17sp"/>
</LinearLayout>
</FrameLayout>
<View
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@drawable/shape_toolbar_black_gradient"
app:layout_collapseMode="pin"/>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/show_view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"
android:paddingTop="@dimen/toolbar_height"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/></android.support.design.widget.CoordinatorLayout>
Убедитесь, что ваш стиль также расширяет TextAppearance или приложение выйдет из строя, если ваша библиотека поддержки дизайна v22.2.0:
<style name="TransparentText" parent="@android:style/TextAppearance">
<item name="android:textColor">#00666666</item>
</style>
Эта ошибка, по-видимому, исправлена в версии 22.2.1 (https://code.google.com/p/android/issues/detail?id=178674):
Ответ 6
Вот модифицированная версия реализации Harco (эта) с заголовком и субтитрами по центру при расширении.
activity_main.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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="@drawable/img_nature"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin">
<include
android:id="@+id/toolbar_header_view"
layout="@layout/header_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/header_view_end_margin_right"
android:visibility="gone" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<include
android:id="@+id/float_header_view"
layout="@layout/header_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_behavior="com.subtitlebehavoir.harcopro.simple.ViewBehavior" />
</android.support.design.widget.CoordinatorLayout>
dimens.xml
<resources>
<!-- Default screen margins, per the Android Design guidelines. -->
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
<dimen name="header_view_end_margin_left">56dp</dimen>
<dimen name="header_view_end_margin_right">14dp</dimen>
<dimen name="header_view_start_margin_bottom">14dp</dimen>
</resources>
header_view.xml
<?xml version="1.0" encoding="utf-8"?>
<com.subtitlebehavoir.harcopro.simple.HeaderView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<!-- Title -->
<TextView
android:id="@+id/header_view_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxLines="1"
android:textColor="@android:color/white"
android:textSize="18sp" />
<!-- Subtitle -->
<TextView
android:id="@+id/header_view_sub_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/header_view_title"
android:maxLines="1"
android:textColor="@android:color/white"
android:textSize="16sp" />
</com.subtitlebehavoir.harcopro.simple.HeaderView>
HeaderView.java
public class HeaderView extends RelativeLayout {
@Bind(R.id.header_view_title)
TextView title;
@Bind(R.id.header_view_sub_title)
TextView subTitle;
Context context;
public HeaderView(Context context) {
super(context);
this.context = context;
}
public HeaderView(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
}
public HeaderView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.context = context;
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public HeaderView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
this.context = context;
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
ButterKnife.bind(this);
}
public void bindTo(String title) {
bindTo(title, "");
}
public void bindTo(String title, String subTitle) {
hideOrSetText(this.title, title);
hideOrSetText(this.subTitle, subTitle);
}
private void hideOrSetText(TextView tv, String text) {
if (text == null || text.equals(""))
tv.setVisibility(GONE);
else
tv.setText(text);
}
public void setScaleXTitle(float scaleXTitle) {
title.setScaleX(scaleXTitle);
title.setPivotX(0);
}
public void setScaleYTitle(float scaleYTitle) {
title.setScaleY(scaleYTitle);
title.setPivotY(30);
}
public TextView getTitle() {
return title;
}
public TextView getSubTitle() {
return subTitle;
}
}
и ViewBehavior.java
public class ViewBehavior extends CoordinatorLayout.Behavior<HeaderView> {
private static final float MAX_SCALE = 0.5f;
private Context mContext;
private int mStartMarginLeftTitle;
private int mStartMarginLeftSubTitle;
private int mEndMargintLeft;
private int mMarginRight;
private int mStartMarginBottom;
private boolean isHide;
public ViewBehavior(Context context, AttributeSet attrs) {
mContext = context;
}
@Override
public boolean layoutDependsOn(CoordinatorLayout parent, HeaderView child, View dependency) {
return dependency instanceof AppBarLayout;
}
@Override
public boolean onDependentViewChanged(CoordinatorLayout parent, HeaderView child, View dependency) {
shouldInitProperties(child, dependency);
int maxScroll = ((AppBarLayout) dependency).getTotalScrollRange();
float percentage = Math.abs(dependency.getY()) / (float) maxScroll;
// Set scale for the title
float size = ((1 - percentage) * MAX_SCALE) + 1;
child.setScaleXTitle(size);
child.setScaleYTitle(size);
// Set position for the header view
float childPosition = dependency.getHeight()
+ dependency.getY()
- child.getHeight()
- (getToolbarHeight() - child.getHeight()) * percentage / 2;
childPosition = childPosition - mStartMarginBottom * (1f - percentage);
child.setY(childPosition);
// Set Margin for title
RelativeLayout.LayoutParams lpTitle = (RelativeLayout.LayoutParams) child.getTitle().getLayoutParams();
lpTitle.leftMargin = (int) ((mStartMarginLeftTitle) - (percentage * (mStartMarginLeftTitle - mEndMargintLeft)));
if (lpTitle.leftMargin < 20) {
lpTitle.leftMargin = 20;
}
lpTitle.rightMargin = mMarginRight;
child.getTitle().setLayoutParams(lpTitle);
// Set Margin for subtitle
RelativeLayout.LayoutParams lpSubTitle = (RelativeLayout.LayoutParams) child.getSubTitle().getLayoutParams();
lpSubTitle.leftMargin = (int) ((mStartMarginLeftSubTitle) - (percentage * (mStartMarginLeftSubTitle - mEndMargintLeft)));
if (lpSubTitle.leftMargin < 20) {
lpSubTitle.leftMargin = 20;
}
lpSubTitle.rightMargin = mMarginRight;
child.getSubTitle().setLayoutParams(lpSubTitle);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
if (isHide && percentage < 1) {
child.setVisibility(View.VISIBLE);
isHide = false;
} else if (!isHide && percentage == 1) {
child.setVisibility(View.GONE);
isHide = true;
}
}
return true;
}
private void shouldInitProperties(HeaderView child, View dependency) {
if (mStartMarginLeftTitle == 0)
mStartMarginLeftTitle = getStartMarginLeftTitle(child);
if (mStartMarginLeftSubTitle == 0)
mStartMarginLeftSubTitle = getStartMarginLeftSubTitle(child);
if (mEndMargintLeft == 0)
mEndMargintLeft = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_end_margin_left);
if (mStartMarginBottom == 0)
mStartMarginBottom = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_start_margin_bottom);
if (mMarginRight == 0)
mMarginRight = mContext.getResources().getDimensionPixelOffset(R.dimen.header_view_end_margin_right);
}
public int getStartMarginLeftTitle(HeaderView headerView) {
TextView title = headerView.getTitle();
DisplayMetrics displaymetrics = new DisplayMetrics();
WindowManager windowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
windowManager.getDefaultDisplay().getMetrics(displaymetrics);
int width = displaymetrics.widthPixels;
int stringWidth = getStingWidth(title);
int marginLeft = (int) ((width / 2) - ((stringWidth + (stringWidth * MAX_SCALE)) / 2));
return marginLeft;
}
public int getStartMarginLeftSubTitle(HeaderView headerView) {
TextView subTitle = headerView.getSubTitle();
DisplayMetrics displaymetrics = new DisplayMetrics();
WindowManager windowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
windowManager.getDefaultDisplay().getMetrics(displaymetrics);
int width = displaymetrics.widthPixels;
int stringWidth = getStingWidth(subTitle);
int marginLeft = ((width / 2) - (stringWidth / 2));
return marginLeft;
}
public int getStingWidth(TextView textView) {
Rect bounds = new Rect();
Paint textPaint = textView.getPaint();
textPaint.getTextBounds(textView.getText().toString(), 0, textView.getText().toString().length(), bounds);
return bounds.width();
}
public int getToolbarHeight() {
int result = 0;
TypedValue tv = new TypedValue();
if (mContext.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
result = TypedValue.complexToDimensionPixelSize(tv.data, mContext.getResources().getDisplayMetrics());
}
return result;
}
}