diff --git a/packages/SystemUI/src/com/android/systemui/controls/ui/ControlActionCoordinatorImpl.kt b/packages/SystemUI/src/com/android/systemui/controls/ui/ControlActionCoordinatorImpl.kt
index d3d6e03..6f30ac3 100644
--- a/packages/SystemUI/src/com/android/systemui/controls/ui/ControlActionCoordinatorImpl.kt
+++ b/packages/SystemUI/src/com/android/systemui/controls/ui/ControlActionCoordinatorImpl.kt
@@ -18,6 +18,7 @@
 
 import android.annotation.MainThread
 import android.app.Dialog
+import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
@@ -88,7 +89,7 @@
         bouncerOrRun(createAction(cvh.cws.ci.controlId, {
             cvh.layout.performHapticFeedback(HapticFeedbackConstants.CONTEXT_CLICK)
             if (cvh.usePanel()) {
-                showDetail(cvh, control.getAppIntent().getIntent())
+                showDetail(cvh, control.getAppIntent())
             } else {
                 cvh.action(CommandAction(templateId))
             }
@@ -116,7 +117,7 @@
             // Long press snould only be called when there is valid control state, otherwise ignore
             cvh.cws.control?.let {
                 cvh.layout.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS)
-                showDetail(cvh, it.getAppIntent().getIntent())
+                showDetail(cvh, it.getAppIntent())
             }
         }, false /* blockable */))
     }
@@ -167,10 +168,10 @@
         bgExecutor.execute { vibrator.vibrate(effect) }
     }
 
-    private fun showDetail(cvh: ControlViewHolder, intent: Intent) {
+    private fun showDetail(cvh: ControlViewHolder, pendingIntent: PendingIntent) {
         bgExecutor.execute {
             val activities: List<ResolveInfo> = context.packageManager.queryIntentActivities(
-                intent,
+                pendingIntent.getIntent(),
                 PackageManager.MATCH_DEFAULT_ONLY
             )
 
@@ -178,7 +179,7 @@
                 // make sure the intent is valid before attempting to open the dialog
                 if (activities.isNotEmpty() && taskViewFactory.isPresent) {
                     taskViewFactory.get().create(context, uiExecutor, {
-                        dialog = DetailDialog(activityContext, it, intent, cvh).also {
+                        dialog = DetailDialog(activityContext, it, pendingIntent, cvh).also {
                             it.setOnDismissListener { _ -> dialog = null }
                             it.show()
                         }
diff --git a/packages/SystemUI/src/com/android/systemui/controls/ui/DetailDialog.kt b/packages/SystemUI/src/com/android/systemui/controls/ui/DetailDialog.kt
index 8a47a36..4758ab0 100644
--- a/packages/SystemUI/src/com/android/systemui/controls/ui/DetailDialog.kt
+++ b/packages/SystemUI/src/com/android/systemui/controls/ui/DetailDialog.kt
@@ -43,7 +43,7 @@
 class DetailDialog(
     val activityContext: Context?,
     val taskView: TaskView,
-    val intent: Intent,
+    val pendingIntent: PendingIntent,
     val cvh: ControlViewHolder
 ) : Dialog(
     activityContext ?: cvh.context,
@@ -59,6 +59,14 @@
 
     var detailTaskId = INVALID_TASK_ID
 
+    private val fillInIntent = Intent().apply {
+        putExtra(EXTRA_USE_PANEL, true)
+
+        // Apply flags to make behaviour match documentLaunchMode=always.
+        addFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT)
+        addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK)
+    }
+
     fun removeDetailTask() {
         if (detailTaskId == INVALID_TASK_ID) return
         ActivityTaskManager.getInstance().removeTask(detailTaskId)
@@ -67,13 +75,6 @@
 
     val stateCallback = object : TaskView.Listener {
         override fun onInitialized() {
-            val launchIntent = Intent(intent)
-            launchIntent.putExtra(EXTRA_USE_PANEL, true)
-
-            // Apply flags to make behaviour match documentLaunchMode=always.
-            launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT)
-            launchIntent.addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK)
-
             val options = activityContext?.let {
                 ActivityOptions.makeCustomAnimation(
                     it,
@@ -82,9 +83,8 @@
                 )
             } ?: ActivityOptions.makeBasic()
             taskView.startActivity(
-                PendingIntent.getActivity(context, 0, launchIntent,
-                        PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE),
-                null /* fillInIntent */,
+                pendingIntent,
+                fillInIntent,
                 options,
                 getTaskViewBounds()
             )
@@ -97,6 +97,9 @@
 
         override fun onTaskCreated(taskId: Int, name: ComponentName?) {
             detailTaskId = taskId
+            requireViewById<ViewGroup>(R.id.controls_activity_view).apply {
+                setAlpha(1f)
+            }
         }
 
         override fun onReleased() {
@@ -121,6 +124,7 @@
 
         requireViewById<ViewGroup>(R.id.controls_activity_view).apply {
             addView(taskView)
+            setAlpha(0f)
         }
 
         requireViewById<ImageView>(R.id.control_detail_close).apply {
@@ -134,7 +138,7 @@
                 removeDetailTask()
                 dismiss()
                 context.sendBroadcast(Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS))
-                v.context.startActivity(intent)
+                pendingIntent.send()
             }
         }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/controls/ui/DetailDialogTest.kt b/packages/SystemUI/tests/src/com/android/systemui/controls/ui/DetailDialogTest.kt
new file mode 100644
index 0000000..87b9172
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/controls/ui/DetailDialogTest.kt
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.controls.ui
+
+import android.app.PendingIntent
+import android.testing.AndroidTestingRunner
+import android.testing.TestableLooper
+import androidx.test.filters.SmallTest
+import com.android.systemui.SysuiTestCase
+import com.android.wm.shell.TaskView
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentMatchers.eq
+import org.mockito.Mock
+import org.mockito.Mockito.any
+import org.mockito.Mockito.verify
+import org.mockito.MockitoAnnotations
+
+@SmallTest
+@RunWith(AndroidTestingRunner::class)
+@TestableLooper.RunWithLooper
+class DetailDialogTest : SysuiTestCase() {
+
+    @Mock
+    private lateinit var taskView: TaskView
+    @Mock
+    private lateinit var controlViewHolder: ControlViewHolder
+    @Mock
+    private lateinit var pendingIntent: PendingIntent
+
+    @Before
+    fun setUp() {
+        MockitoAnnotations.initMocks(this)
+    }
+
+    @Test
+    fun testPendingIntentIsUnModified() {
+        // GIVEN the dialog is created with a PendingIntent
+        val dialog = createDialog(pendingIntent)
+
+        // WHEN the TaskView is initialized
+        dialog.stateCallback.onInitialized()
+
+        // THEN the PendingIntent used to call startActivity is unmodified by systemui
+        verify(taskView).startActivity(eq(pendingIntent), any(), any(), any())
+    }
+
+    private fun createDialog(pendingIntent: PendingIntent): DetailDialog {
+        return DetailDialog(
+            mContext,
+            taskView,
+            pendingIntent,
+            controlViewHolder
+        )
+    }
+}