support max lines for labels

README.md

@@ -195,6 +195,11 @@ Attributes:
 	<td>Color for the labels</td>
 	<td>android:textColorSecondary defined in your project</td>
 	</tr>
+<tr>
+    <td>stpi_labelMaxLines</td>
+    <td>Max number of lines for the labels. Ellipsized at the end if exceeded. Only above SDK 23.</td>
+    <td>infinite</td>
+    </tr>
 </tbody></table>
 
 

library/src/main/java/com/rakshakhegde/stepperindicator/StepperIndicator.java

@@ -25,7 +25,9 @@
 import android.support.v4.view.ViewPager;
 import android.text.Layout;
 import android.text.StaticLayout;
+import android.text.TextDirectionHeuristics;
 import android.text.TextPaint;
+import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.util.TypedValue;
@@ -179,6 +181,11 @@
  * <td>Color for the labels</td>
  * <td>android:textColorSecondary defined in your project</td>
  * </tr>
+ * <tr>
+ * <td>stpi_labelMaxLines</td>
+ * <td>Max number of lines for the labels. Ellipsized at the end if exceeded. Only above SDK 23.</td>
+ * <td>infinite</td>
+ * </tr>
  * </tbody></table>
  * <p>
  * <p> Updated by Ionut Negru on 08/08/16 to add the stepClickListener feature.</p>
@@ -354,6 +361,7 @@ public class StepperIndicator extends View implements ViewPager.OnPageChangeList
     private CharSequence[] labels;
     private boolean showLabels;
     private float labelMarginTop;
+    private int labelMaxLines;
     private StaticLayout[] labelLayouts;
     private float maxLabelHeight;
 
@@ -626,6 +634,8 @@ private void init(Context context, AttributeSet attrs, int defStyleAttr) {
         float defaultLabelMarginTop = resources.getDimension(R.dimen.stpi_default_label_margin_top);
         labelMarginTop = typedArray.getDimension(R.styleable.StepperIndicator_stpi_labelMarginTop, defaultLabelMarginTop);
 
+        labelMaxLines = typedArray.getInt(R.styleable.StepperIndicator_stpi_labelMaxLines, Integer.MAX_VALUE);
+
         showLabels(typedArray.getBoolean(R.styleable.StepperIndicator_stpi_showLabels, false));
         setLabels(typedArray.getTextArray(R.styleable.StepperIndicator_stpi_labels));
 
@@ -825,6 +835,17 @@ private void calculateMaxLabelHeight(final int measuredWidth) {
 
             labelLayouts[i] = new StaticLayout(labels[i], labelPaint, gridWidth,
                                                Layout.Alignment.ALIGN_NORMAL, 1, 0, false);
+
+            if (labelMaxLines < Integer.MAX_VALUE && labelLayouts[i].getLineCount() > labelMaxLines && Build.VERSION.SDK_INT >= 23) {
+                // recreate StaticLayout if it needs to be ellipsized
+                labelLayouts[i]= StaticLayout.Builder
+                        .obtain(labels[i], 0, labels[i].length(), labelPaint, gridWidth)
+                        .setMaxLines(labelMaxLines)
+                        .setLineSpacing(0, 1)
+                        .setIncludePad(false)
+                        .setEllipsize(TextUtils.TruncateAt.END)
+                        .build();
+            }
             maxLabelHeight = Math.max(maxLabelHeight, labelLayouts[i].getLineCount() * labelSingleLineHeight);
         }
     }

library/src/main/res/values/attrs.xml

@@ -34,5 +34,6 @@
         <attr name="stpi_labelMarginTop" format="dimension"/>
         <attr name="stpi_labelSize" format="dimension"/>
         <attr name="stpi_labelColor" format="color"/>
+        <attr name="stpi_labelMaxLines" format="integer"/>
     </declare-styleable>
 </resources>