From cd5a45a9793bfbba079242586933af6832a41e52 Mon Sep 17 00:00:00 2001
From: Vadim Caen <caen@google.com>
Date: Mon, 24 Jan 2022 18:14:44 +0100
Subject: [PATCH] Add option to show the splashscreen from 'adb shell am'

Add an option to show the splashscreen when launching an appliation :
--splashscreen-show-icon

This will allow to show the splash screen when the application is run
from Android Studio

Bug: 205021357
Test: adb shell am start --splashscreen-show-icon
Change-Id: I09371169bea9c8114c6bf6fe4d486164b5cf561a
---
 .../server/am/ActivityManagerShellCommand.java        | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/services/core/java/com/android/server/am/ActivityManagerShellCommand.java b/services/core/java/com/android/server/am/ActivityManagerShellCommand.java
index c062365944d77..b6a0ec4278d62 100644
--- a/services/core/java/com/android/server/am/ActivityManagerShellCommand.java
+++ b/services/core/java/com/android/server/am/ActivityManagerShellCommand.java
@@ -98,6 +98,7 @@ import android.util.DebugUtils;
 import android.util.DisplayMetrics;
 import android.util.proto.ProtoOutputStream;
 import android.view.Display;
+import android.window.SplashScreen;
 
 import com.android.internal.compat.CompatibilityChangeConfig;
 import com.android.internal.util.HexDump;
@@ -178,6 +179,7 @@ final class ActivityManagerShellCommand extends ShellCommand {
     private boolean mIsLockTask;
     private boolean mAsync;
     private BroadcastOptions mBroadcastOptions;
+    private boolean mShowSplashScreen;
 
     final boolean mDumping;
 
@@ -428,6 +430,8 @@ final class ActivityManagerShellCommand extends ShellCommand {
                     mBroadcastOptions.setBackgroundActivityStartsAllowed(true);
                 } else if (opt.equals("--async")) {
                     mAsync = true;
+                } else if (opt.equals("--splashscreen-show-icon")) {
+                    mShowSplashScreen = true;
                 } else {
                     return false;
                 }
@@ -566,6 +570,12 @@ final class ActivityManagerShellCommand extends ShellCommand {
                 }
                 options.setLockTaskEnabled(true);
             }
+            if (mShowSplashScreen) {
+                if (options == null) {
+                    options = ActivityOptions.makeBasic();
+                }
+                options.setSplashScreenStyle(SplashScreen.SPLASH_SCREEN_STYLE_ICON);
+            }
             if (mWaitOption) {
                 result = mInternal.startActivityAndWait(null, SHELL_PACKAGE_NAME, null, intent,
                         mimeType, null, null, 0, mStartFlags, profilerInfo,
@@ -3301,6 +3311,7 @@ final class ActivityManagerShellCommand extends ShellCommand {
             pw.println("      --windowingMode <WINDOWING_MODE>: The windowing mode to launch the activity into.");
             pw.println("      --activityType <ACTIVITY_TYPE>: The activity type to launch the activity as.");
             pw.println("      --display <DISPLAY_ID>: The display to launch the activity into.");
+            pw.println("      --splashscreen-icon: Show the splash screen icon on launch.");
             pw.println("  start-service [--user <USER_ID> | current] <INTENT>");
             pw.println("      Start a Service.  Options are:");
             pw.println("      --user <USER_ID> | current: Specify which user to run as; if not");