diff --git a/docs/components/TopAppBar.md b/docs/components/TopAppBar.md index 7b36fa33703..762c92dc818 100644 --- a/docs/components/TopAppBar.md +++ b/docs/components/TopAppBar.md @@ -387,6 +387,7 @@ Element | Attr **`MaterialToolbar` title typography** | `app:titleTextAppearance` | `setTitleTextAppearance` | `?attr/textAppearanceTitleLarge` **`MaterialToolbar` subtitle typography** | `app:subtitleTextAppearance` | `setSubtitleTextAppearance` | `?attr/textAppearanceTitleMedium` **`MaterialToolbar` title centering** | `app:titleCentered` | `setTitleCentered` | `false` +**`MaterialToolbar` title marquee** | `app:titleMarqueeEnabled` | `setTitleMarqueeEnabled` | `false` **`MaterialToolbar` subtitle centering** | `app:subtitleCentered` | `setSubtitleCentered` | `false` **`CollapsingToolbarLayout` collapsed title typography** | `app:collapsedTitleTextAppearance` | `setCollapsedTitleTextAppearance` | `?attr/textAppearanceTitleLarge` **`CollapsingToolbarLayout` expanded title typography** | `app:expandedTitleTextAppearance` | `setExpandedTitleTextAppearance` | `?attr/textAppearanceHeadlineSmall` for Medium
`?attr/textAppearanceHeadlineMedium` for Large diff --git a/lib/java/com/google/android/material/appbar/MaterialToolbar.java b/lib/java/com/google/android/material/appbar/MaterialToolbar.java index 347c55af0bc..2c60a830346 100644 --- a/lib/java/com/google/android/material/appbar/MaterialToolbar.java +++ b/lib/java/com/google/android/material/appbar/MaterialToolbar.java @@ -83,6 +83,7 @@ public class MaterialToolbar extends Toolbar { @Nullable private Integer navigationIconTint; private boolean titleCentered; private boolean subtitleCentered; + private boolean titleMarqueeEnabled; @Nullable private ImageView.ScaleType logoScaleType; @Nullable private Boolean logoAdjustViewBounds; @@ -110,6 +111,7 @@ public MaterialToolbar(@NonNull Context context, @Nullable AttributeSet attrs, i titleCentered = a.getBoolean(R.styleable.MaterialToolbar_titleCentered, false); subtitleCentered = a.getBoolean(R.styleable.MaterialToolbar_subtitleCentered, false); + titleMarqueeEnabled = a.getBoolean(R.styleable.MaterialToolbar_titleMarqueeEnabled, false); final int index = a.getInt(R.styleable.MaterialToolbar_logoScaleType, -1); if (index >= 0 && index < LOGO_SCALE_TYPE_ARRAY.length) { @@ -144,6 +146,7 @@ protected void onLayout(boolean changed, int left, int top, int right, int botto maybeCenterTitleViews(); updateLogoImageView(); + enableMarqueeIfNeeded(); } private void maybeCenterTitleViews() { @@ -228,6 +231,19 @@ private void updateLogoImageView() { } } + private void enableMarqueeIfNeeded() { + if (!titleMarqueeEnabled) return; + + TextView titleTextView = ToolbarUtils.getTitleTextView(this); + if (titleTextView != null) { + titleTextView.setEllipsize(android.text.TextUtils.TruncateAt.MARQUEE); + titleTextView.setSingleLine(true); + titleTextView.setSelected(true); + titleTextView.setFocusable(true); + titleTextView.setFocusableInTouchMode(true); + } + } + /** * Returns scale type of logo's ImageView * @@ -347,6 +363,24 @@ public boolean isTitleCentered() { return titleCentered; } + /** + * Sets whether the title text corresponding to the {@link #setTitle(int)} method should be + * marquee. + */ + public void setTitleMarqueeEnabled(boolean enabled) { + this.titleMarqueeEnabled = enabled; + requestLayout(); + } + + /** + * Returns whether the title text corresponding to the {@link #setTitle(int)} method is marquee or not. + * + * @see #setTitleMarqueeEnabled(boolean) + */ + public boolean isTitleMarqueeEnabled() { + return titleMarqueeEnabled; + } + /** * Sets whether the subtitle text corresponding to the {@link #setSubtitle(int)} method should be * centered horizontally within the toolbar. diff --git a/lib/java/com/google/android/material/appbar/res-public/values/public.xml b/lib/java/com/google/android/material/appbar/res-public/values/public.xml index e2bb35dc985..bf6b05643fc 100644 --- a/lib/java/com/google/android/material/appbar/res-public/values/public.xml +++ b/lib/java/com/google/android/material/appbar/res-public/values/public.xml @@ -93,6 +93,7 @@ +