From 00d3d3086a2c2b142ac9dd3b5ff5817c5778236c Mon Sep 17 00:00:00 2001
From: Tsung-Mao Fang <tmfang@google.com>
Date: Fri, 6 May 2022 18:19:25 +0800
Subject: [PATCH] Create an #isAppInstalled() util method

Test: robo test
Bug: 230303570
Change-Id: I39bf4129cda09b0b3e2913543e425f272d80df9d
---
 .../settingslib/applications/AppUtils.java    | 17 ++++++++++++--
 .../applications/AppUtilsTest.java            | 22 +++++++++++++++++++
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java b/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java
index cc4fef8399c3b..7f65837d57167 100644
--- a/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java
+++ b/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java
@@ -268,9 +268,9 @@ public class AppUtils {
     /**
      * Preload the top N icons of app entry list.
      *
-     * @param context caller's context
+     * @param context    caller's context
      * @param appEntries AppEntry list of ApplicationsState
-     * @param number the number of Top N icons of the appEntries
+     * @param number     the number of Top N icons of the appEntries
      */
     public static void preloadTopIcons(Context context,
             ArrayList<ApplicationsState.AppEntry> appEntries, int number) {
@@ -286,6 +286,19 @@ public class AppUtils {
         }
     }
 
+    /**
+     * Returns a boolean indicating whether this app  is installed or not.
+     *
+     * @param appEntry AppEntry of ApplicationsState.
+     * @return true if the app is in installed state.
+     */
+    public static boolean isAppInstalled(ApplicationsState.AppEntry appEntry) {
+        if (appEntry == null || appEntry.info == null) {
+            return false;
+        }
+        return (appEntry.info.flags & ApplicationInfo.FLAG_INSTALLED) != 0;
+    }
+
     private static void setAppEntryMounted(ApplicationsState.AppEntry appEntry, boolean mounted) {
         if (appEntry.mounted != mounted) {
             synchronized (appEntry) {
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/applications/AppUtilsTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/applications/AppUtilsTest.java
index 8e448aa0eacef..994c1ee5013f8 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/applications/AppUtilsTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/applications/AppUtilsTest.java
@@ -129,6 +129,28 @@ public class AppUtilsTest {
         assertThat(mAppIconCacheManager.get(APP_PACKAGE_NAME, APP_UID)).isNotNull();
     }
 
+    @Test
+    public void isAppInstalled_noAppEntry_shouldReturnFalse() {
+        assertThat(AppUtils.isAppInstalled(null)).isFalse();
+    }
+
+    @Test
+    public void isAppInstalled_hasAppEntryWithInstalledFlag_shouldReturnTrue() {
+        final ApplicationsState.AppEntry appEntry = mock(ApplicationsState.AppEntry.class);
+        appEntry.info = new ApplicationInfo();
+        appEntry.info.flags = ApplicationInfo.FLAG_INSTALLED;
+
+        assertThat(AppUtils.isAppInstalled(appEntry)).isTrue();
+    }
+
+    @Test
+    public void isAppInstalled_hasAppEntryWithoutInstalledFlag_shouldReturnFalse() {
+        final ApplicationsState.AppEntry appEntry = mock(ApplicationsState.AppEntry.class);
+        appEntry.info = new ApplicationInfo();
+
+        assertThat(AppUtils.isAppInstalled(appEntry)).isFalse();
+    }
+
     private ApplicationsState.AppEntry createAppEntry(ApplicationInfo appInfo, int id) {
         ApplicationsState.AppEntry appEntry = new ApplicationsState.AppEntry(mContext, appInfo, id);
         appEntry.label = "label";