android - CollapseingToolbarLayout サブタイトル

Question

メソッドCollapsingToolbarLayout経由でタイトルを設定できますか?setTitle

サブタイトルを設定する方法はありますか？

Answer 1

字幕が完全に折りたたまれToolbarたときに字幕を表示したい場合は、次のようにカスタムを作成する必要があります: Github ガイドAppBarCoordinatorLayout.Behaviour

ただし、 を展開したときにタイトルの後ろに小さなテキストが必要な場合は、次のAppBarレイアウトを試すことができます。

<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>

AppBarここでは、高さを asに設定し300dpてapp:expandedTitleMarginBottomいることに注意してください160dp。これにより、タイトルが下に移動して出力サブタイトルと競合することはありません。この例では、メソッドCollapsingToolbarTitleを使用してランタイムで動的に設定する必要がありますcollapsingToolbarTitle.setTitle("My Title");。

結果は次のようになります。

Answer 2

このようなものを試してみてください。カスタムViewBehaviorを作成しました

@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;
}

そしてこれが私のレイアウト

<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>

ViewHeader レイアウト:

<?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>

Answer 3

上記の Harco の実装 ( this ) の修正版を次に示します。レイアウトを展開したり折りたたんだりすると、タイトルのサイズも変更されます。

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);
    }
}