diff --git a/bubbleseekbar/src/main/java/com/xw/repo/BubbleSeekBar.java b/bubbleseekbar/src/main/java/com/xw/repo/BubbleSeekBar.java
index ec03648..839f7c3 100644
--- a/bubbleseekbar/src/main/java/com/xw/repo/BubbleSeekBar.java
+++ b/bubbleseekbar/src/main/java/com/xw/repo/BubbleSeekBar.java
@@ -34,6 +34,7 @@
 import android.view.animation.LinearInterpolator;
 
 import com.xw.repo.bubbleseekbar.R;
+import com.xw.repo.exception.ProgressTextLengthException;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -1006,8 +1007,6 @@ public void onAnimationStart(Animator animation) {
                         mWindowManager.addView(mBubbleView, mLayoutParams);
                     }
                 }).start();
-        mBubbleView.setProgressText(isShowProgressInFloat ?
-                String.valueOf(getProgressFloat()) : String.valueOf(getProgress()));
     }
 
     /**
@@ -1158,6 +1157,19 @@ private float processProgress() {
         return progress;
     }
 
+    public void setProgressText(@NonNull String text) throws ProgressTextLengthException {
+        if (text == null) {
+            throw new ProgressTextLengthException("Text can't be null");
+        }
+        if (text.length() == 0) {
+            throw new ProgressTextLengthException("Text must have a content");
+        }
+        if (text.length() > 5) {
+            throw new ProgressTextLengthException("The text is too long");
+        }
+        mBubbleView.setProgressText(text);
+    }
+
     public OnProgressChangedListener getOnProgressChangedListener() {
         return mProgressListener;
     }
diff --git a/bubbleseekbar/src/main/java/com/xw/repo/exception/ProgressTextLengthException.java b/bubbleseekbar/src/main/java/com/xw/repo/exception/ProgressTextLengthException.java
new file mode 100644
index 0000000..3984774
--- /dev/null
+++ b/bubbleseekbar/src/main/java/com/xw/repo/exception/ProgressTextLengthException.java
@@ -0,0 +1,8 @@
+package com.xw.repo.exception;
+
+public class ProgressTextLengthException extends Exception {
+
+    public ProgressTextLengthException(String message) {
+        super(message);
+    }
+}