Provide a second overload to TextDelegate.getText that provides layer…

…Name (#1931)

If multiple text layers have the same text, it is impossible to disambiguate which one you are setting the text for. This commit adds a second overload for TextDelegate.getText that lets you receive the layerName in addition to the text.

Fixex #1932

lottie/src/main/java/com/airbnb/lottie/TextDelegate.java

@@ -17,6 +17,7 @@
 public class TextDelegate {
 
   private final Map<String, String> stringMap = new HashMap<>();
+
   @Nullable private final LottieAnimationView animationView;
   @Nullable private final LottieDrawable drawable;
   private boolean cacheText = true;
@@ -41,6 +42,17 @@ public TextDelegate(@SuppressWarnings("NullableProblems") LottieDrawable drawabl
     animationView = null;
   }
 
+  /**
+   * Override this to replace the animation text with something dynamic. This can be used for
+   * translations or custom data.
+   * @param layerName the name of the layer with text
+   * @param input the string at the layer with text
+   * @return a String to use for the specific data, by default this is the same as getText(input)
+   */
+  public String getText(String layerName, String input) {
+    return getText(input);
+  }
+
   /**
    * Override this to replace the animation text with something dynamic. This can be used for
    * translations or custom data.
@@ -82,11 +94,11 @@ public void invalidateAllText() {
   }
 
   @RestrictTo(RestrictTo.Scope.LIBRARY)
-  public final String getTextInternal(String input) {
+  public final String getTextInternal(String layerName, String input) {
     if (cacheText && stringMap.containsKey(input)) {
       return stringMap.get(input);
     }
-    String text = getText(input);
+    String text = getText(layerName, input);
     if (cacheText) {
       stringMap.put(input, text);
     }

lottie/src/main/java/com/airbnb/lottie/model/layer/TextLayer.java

@@ -245,7 +245,7 @@ private void drawTextWithFont(
     String text = documentData.text;
     TextDelegate textDelegate = lottieDrawable.getTextDelegate();
     if (textDelegate != null) {
-      text = textDelegate.getTextInternal(text);
+      text = textDelegate.getTextInternal(getName(), text);
     }
     fillPaint.setTypeface(typeface);
     float textSize;