Use full screen width for drop target buttons to support higher screen densities from truncating text.
Scale oversized text down if after all computations it will still be truncated at higher densities.
Fix: 239401464
Test: manual. To follow up with screenshot test: b/241386128
Change-Id: Ie088d0631b0d13beb2d9f9d5396a56f7b971dee1
diff --git a/src/com/android/launcher3/ButtonDropTarget.java b/src/com/android/launcher3/ButtonDropTarget.java
index 3b24df2..5abe3d3 100644
--- a/src/com/android/launcher3/ButtonDropTarget.java
+++ b/src/com/android/launcher3/ButtonDropTarget.java
@@ -91,7 +91,7 @@
Resources resources = getResources();
mDragDistanceThreshold = resources.getDimensionPixelSize(R.dimen.drag_distanceThreshold);
- mDrawableSize = resources.getDimensionPixelSize(R.dimen.drop_target_text_size);
+ mDrawableSize = resources.getDimensionPixelSize(R.dimen.drop_target_button_drawable_size);
mDrawablePadding = resources.getDimensionPixelSize(
R.dimen.drop_target_button_drawable_padding);
}
@@ -374,11 +374,63 @@
hideTooltip();
}
+ /**
+ * Returns if the text will be truncated within the provided availableWidth.
+ */
public boolean isTextTruncated(int availableWidth) {
- availableWidth -= (getPaddingLeft() + getPaddingRight() + mDrawable.getIntrinsicWidth()
- + getCompoundDrawablePadding());
- CharSequence displayedText = TextUtils.ellipsize(mText, getPaint(), availableWidth,
+ availableWidth -= getPaddingLeft() + getPaddingRight();
+ if (mIconVisible) {
+ availableWidth -= mDrawable.getIntrinsicWidth() + getCompoundDrawablePadding();
+ }
+ if (availableWidth <= 0) {
+ return true;
+ }
+ CharSequence firstLine = TextUtils.ellipsize(mText, getPaint(), availableWidth,
TextUtils.TruncateAt.END);
- return !mText.equals(displayedText);
+ if (!mTextMultiLine) {
+ return !TextUtils.equals(mText, firstLine);
+ }
+ if (TextUtils.equals(mText, firstLine)) {
+ // When multi-line is active, if it can display as one line, then text is not truncated.
+ return false;
+ }
+ CharSequence secondLine =
+ TextUtils.ellipsize(mText.subSequence(firstLine.length(), mText.length()),
+ getPaint(), availableWidth, TextUtils.TruncateAt.END);
+ return !(TextUtils.equals(mText.subSequence(0, firstLine.length()), firstLine)
+ && TextUtils.equals(mText.subSequence(firstLine.length(), secondLine.length()),
+ secondLine));
+ }
+
+ /**
+ * Reduce the size of the text until it fits the measured width or reaches a minimum.
+ *
+ * The minimum size is defined by {@code R.dimen.button_drop_target_min_text_size} and
+ * it diminishes by intervals defined by
+ * {@code R.dimen.button_drop_target_resize_text_increment}
+ * This functionality is very similar to the option
+ * {@link TextView#setAutoSizeTextTypeWithDefaults(int)} but can't be used in this view because
+ * the layout width is {@code WRAP_CONTENT}.
+ *
+ * @return The biggest text size in SP that makes the text fit or if the text can't fit returns
+ * the min available value
+ */
+ public float resizeTextToFit() {
+ float minSize = Utilities.pxToSp(getResources()
+ .getDimensionPixelSize(R.dimen.button_drop_target_min_text_size));
+ float step = Utilities.pxToSp(getResources()
+ .getDimensionPixelSize(R.dimen.button_drop_target_resize_text_increment));
+ float textSize = Utilities.pxToSp(getTextSize());
+
+ int availableWidth = getMeasuredWidth();
+ while (textSize > minSize) {
+ if (isTextTruncated(availableWidth)) {
+ textSize -= step;
+ setTextSize(textSize);
+ } else {
+ return textSize;
+ }
+ }
+ return minSize;
}
}