Add logging for task view thumbnail state.

Test: adb shell dumpsys activity com.android.systemui

Bug: 32735667
Change-Id: Ieb06b1c11f833f7489d1d4994e634efea4227db2
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
index 15de7b5..1de21c6 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -2192,6 +2192,11 @@
             mFocusedTask.dump("", writer);
         }
 
+        int numTaskViews = mTaskViews.size();
+        for (int i = 0; i < numTaskViews; i++) {
+            mTaskViews.get(i).dump(innerPrefix, writer);
+        }
+
         mLayoutAlgorithm.dump(innerPrefix, writer);
         mStackScroller.dump(innerPrefix, writer);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
index 93ab0bd..d33a91c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
@@ -58,6 +58,7 @@
 import com.android.systemui.recents.model.Task;
 import com.android.systemui.recents.model.TaskStack;
 
+import java.io.PrintWriter;
 import java.util.ArrayList;
 
 /**
@@ -715,4 +716,14 @@
             setClipViewInStack(true);
         });
     }
+
+    public void dump(String prefix, PrintWriter writer) {
+        String innerPrefix = prefix + "  ";
+
+        writer.print(prefix); writer.print("TaskView");
+        writer.print(" mTask="); writer.print(mTask.key.id);
+        writer.println();
+
+        mThumbnailView.dump(innerPrefix, writer);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
index 16521f7..e10f329 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
@@ -35,8 +35,11 @@
 import android.view.ViewDebug;
 
 import com.android.systemui.R;
+import com.android.systemui.recents.misc.Utilities;
 import com.android.systemui.recents.model.Task;
 
+import java.io.PrintWriter;
+
 
 /**
  * The task thumbnail view.  It implements an image view that allows for animating the dim and
@@ -335,4 +338,15 @@
         mTask = null;
         setThumbnail(null, null);
     }
+
+    public void dump(String prefix, PrintWriter writer) {
+        String innerPrefix = prefix + "  ";
+
+        writer.print(prefix); writer.print("TaskViewThumbnail");
+        writer.print(" mTaskViewRect="); writer.print(Utilities.dumpRect(mTaskViewRect));
+        writer.print(" mThumbnailRect="); writer.print(Utilities.dumpRect(mThumbnailRect));
+        writer.print(" mThumbnailScale="); writer.print(mThumbnailScale);
+        writer.print(" mDimAlpha="); writer.print(mDimAlpha);
+        writer.println();
+    }
 }