Drop min sdk to 26

CompatLib/build.gradle

@@ -7,7 +7,7 @@ android {
     compileSdk 31
 
     defaultConfig {
-        minSdk 28
+        minSdk 26
         targetSdk 31
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

CompatLibVR/build.gradle

@@ -7,7 +7,7 @@ android {
     compileSdk 30
 
     defaultConfig {
-        minSdk 28
+        minSdk 26
         targetSdk 31
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

CompatLibVS/build.gradle

@@ -7,7 +7,7 @@ android {
     compileSdk 31
 
     defaultConfig {
-        minSdk 28
+        minSdk 26
         targetSdk 31
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

SystemUIShared/build.gradle

@@ -6,7 +6,7 @@ android {
     buildToolsVersion BUILD_TOOLS_VERSION
 
     defaultConfig {
-        minSdkVersion 28
+        minSdkVersion 26
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"

SystemUIShared/src/com/android/systemui/shared/system/ThreadedRendererCompat.java

@@ -29,6 +29,10 @@ public class ThreadedRendererCompat {
     public static int EGL_CONTEXT_PRIORITY_LOW_IMG = 0x3103;
 
     public static void setContextPriority(int priority) {
-        ThreadedRenderer.setContextPriority(priority);
+        try {
+            ThreadedRenderer.setContextPriority(priority);
+        } catch (Throwable e) {
+            // ignore
+        }
     }
 }

build.gradle

@@ -165,7 +165,7 @@ android {
         withQuickstep {
             dimension "recents"
 
-            minSdkVersion 28
+            minSdkVersion 26
         }
 
         withoutQuickstep {

src/com/android/launcher3/Utilities.java

@@ -116,7 +116,7 @@ public final class Utilities {
     private static final Matrix sInverseMatrix = new Matrix();
 
     public static final String[] EMPTY_STRING_ARRAY = new String[0];
-    public static final Person[] EMPTY_PERSON_ARRAY = new Person[0];
+    public static final Person[] EMPTY_PERSON_ARRAY = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) ? new Person[0] : null;
 
     public static final boolean ATLEAST_O = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
 

src/com/android/launcher3/model/data/WorkspaceItemInfo.java

@@ -173,9 +173,11 @@ public class WorkspaceItemInfo extends ItemInfoWithIcon {
         }
         disabledMessage = shortcutInfo.getDisabledMessage();
 
-        Person[] persons = ApiWrapper.getPersons(shortcutInfo);
-        personKeys = persons.length == 0 ? Utilities.EMPTY_STRING_ARRAY
-            : Arrays.stream(persons).map(Person::getKey).sorted().toArray(String[]::new);
+        if (Utilities.ATLEAST_Q) {
+            Person[] persons = ApiWrapper.getPersons(shortcutInfo);
+            personKeys = persons.length == 0 ? Utilities.EMPTY_STRING_ARRAY
+                    : Arrays.stream(persons).map(Person::getKey).sorted().toArray(String[]::new);
+        }
     }
 
     /** Returns the WorkspaceItemInfo id associated with the deep shortcut. */