Use Observable to notify.

Author: rome753

activitytaskview/src/main/java/cc/rome753/activitytask/model/ViewPool.java

@@ -5,10 +5,11 @@
 import android.view.ViewGroup;
 
 import java.util.LinkedList;
+import java.util.Observable;
 
 import cc.rome753.activitytask.view.ATextView;
 
-public class ViewPool {
+public class ViewPool extends Observable {
 
     LinkedList<ATextView> pool = new LinkedList<>();
     private static ViewPool factory = new ViewPool();
@@ -21,6 +22,8 @@ public void recycle(ViewGroup viewGroup) {
             for(int i = 0; i < viewGroup.getChildCount(); i++) {
                 View view = viewGroup.getChildAt(i);
                 if(view instanceof ATextView) {
+                    removeParent(view);
+                    view.setTag(null);
                     pool.add((ATextView) view);
                 } else if(view instanceof ViewGroup) {
                     recycle((ViewGroup) view);
@@ -30,12 +33,12 @@ public void recycle(ViewGroup viewGroup) {
     }
 
     public ATextView getOne(Context context) {
-        ATextView view;
+        ATextView view;notifyObservers();
         if(pool.isEmpty()) {
             view = new ATextView(context);
+            addObserver(view);
         } else {
             view = pool.remove();
-            removeParent(view);
         }
         return view;
     }
@@ -46,4 +49,8 @@ private void removeParent(View view) {
         }
     }
 
+    public void notifyLifecycleChange(LifecycleInfo info) {
+        setChanged();
+        notifyObservers(info);
+    }
 }

activitytaskview/src/main/java/cc/rome753/activitytask/view/ATextView.java

@@ -4,17 +4,23 @@
 import android.graphics.Color;
 import android.text.SpannableString;
 import android.text.Spanned;
+import android.text.TextUtils;
 import android.text.style.AbsoluteSizeSpan;
 import android.util.AttributeSet;
 
 import androidx.appcompat.widget.AppCompatTextView;
 
+import java.util.Observable;
+import java.util.Observer;
+
+import cc.rome753.activitytask.model.LifecycleInfo;
+
 /**
  * change text color when update
  * Created by rome753@163.com on 2017/4/3.
  */
 
-public class ATextView extends AppCompatTextView{
+public class ATextView extends AppCompatTextView implements Observer {
 
     private static AbsoluteSizeSpan absoluteSizeSpan = new AbsoluteSizeSpan(8, true);
 
@@ -36,20 +42,39 @@ public void setInfoText(String s, String lifecycle) {
         int i1 = s.indexOf("@");
         String tag = s.substring(i1);
         setTag(tag);
+        s = s.replace("Activity", "A…");
+        s = s.replace("Fragment", "F…");
+        s = s.replace(tag, " ");
+
+        addLifecycle(s, lifecycle);
+    }
 
+    private void addLifecycle(String s, String lifecycle) {
         lifecycle = lifecycle.replace("onFragment", "");
         lifecycle = lifecycle.replace("onActivity", "");
         lifecycle = lifecycle.replace("SaveInstanceState", "SIS");
-        s = s.replace("Activity", "A…");
-        s = s.replace("Fragment", "F…");
-        s = s.replace(tag, " ") + lifecycle;
 
-        int i2 = s.indexOf(" ");
-
-        setTextColor(s.contains("Resume") ? Color.YELLOW : Color.WHITE);
-        SpannableString span = new SpannableString(s);
-        span.setSpan(absoluteSizeSpan, i2, s.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        setTextColor(lifecycle.contains("Resume") ? Color.YELLOW : Color.WHITE);
+        SpannableString span = new SpannableString(s + lifecycle);
+        span.setSpan(absoluteSizeSpan, s.length(), span.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
         setText(span);
     }
 
+    @Override
+    public void update(Observable o, Object arg) {
+        if(getTag() == null) {
+            return;
+        }
+        if(arg instanceof LifecycleInfo) {
+            LifecycleInfo info = (LifecycleInfo) arg;
+            String s = info.fragments != null ? info.fragments.get(0) : info.activity;
+            int i1 = s.indexOf("@");
+            String tag = s.substring(i1);
+            if(TextUtils.equals((CharSequence) getTag(), tag)) {
+                s = getText().toString();
+                s = s.substring(0, s.lastIndexOf(" ") + 1);
+                addLifecycle(s, info.lifecycle);
+            }
+        }
+    }
 }

activitytaskview/src/main/java/cc/rome753/activitytask/view/ActivityTaskView.java

@@ -139,7 +139,7 @@ public void remove(LifecycleInfo info) {
 
     public void update(LifecycleInfo info) {
         aTree.updateLifecycle(info.activity, info.lifecycle);
-        notifyData();
+        ViewPool.get().notifyLifecycleChange(info);
     }
 
     private void notifyData() {

activitytaskview/src/main/java/cc/rome753/activitytask/view/FragmentTaskView.java

@@ -45,7 +45,7 @@ public void remove(List<String> fragments) {
 
     public void update(LifecycleInfo info) {
         mTree.updateLifecycle(info.fragments.get(0), info.lifecycle);
-        notifyData();
+        ViewPool.get().notifyLifecycleChange(info);
     }
 
     private void notifyData(){