Fix lints that were added by updated toolchain, mostly camera

packages/camera/camera_android/android/build.gradle

@@ -45,6 +45,9 @@ android {
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    lint {
+        baseline = file("lint-baseline.xml")
+    }
 
     testOptions {
         unitTests.includeAndroidResources = true

packages/camera/camera_android/android/lint-baseline.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="6" by="lint 7.4.2" type="baseline" client="gradle" dependencies="false" name="AGP (7.4.2)" variant="all" version="7.4.2">
+
+    <issue
+        id="OldTargetApi"
+        message="Not targeting the latest versions of Android; compatibility modes apply. Consider testing and updating this version. Consult the android.os.Build.VERSION_CODES javadoc for details."
+        errorLine1="        targetSdkVersion 31"
+        errorLine2="        ~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="build.gradle"
+            line="34"
+            column="9"/>
+    </issue>
+
+    <issue
+        id="ObsoleteSdkInt"
+        message="Unnecessary; SDK_INT is always >= 21"
+        errorLine1="  @TargetApi(Build.VERSION_CODES.LOLLIPOP)"
+        errorLine2="  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="src/main/java/io/flutter/plugins/camera/CameraDeviceWrapper.java"
+            line="27"
+            column="3"/>
+    </issue>
+
+</issues>

packages/camera/camera_android/android/src/main/java/io/flutter/plugins/camera/Camera.java

@@ -322,15 +322,15 @@ public void onOpened(@NonNull CameraDevice device) {
             cameraDevice = new DefaultCameraDeviceWrapper(device);
             try {
               startPreview();
-              if (!recordingVideo) // only send initialization if we werent already recording and switching cameras
-              dartMessenger.sendCameraInitializedEvent(
+              if (!recordingVideo) { // only send initialization if we werent already recording and switching cameras
+                dartMessenger.sendCameraInitializedEvent(
                     resolutionFeature.getPreviewSize().getWidth(),
                     resolutionFeature.getPreviewSize().getHeight(),
                     cameraFeatures.getExposureLock().getValue(),
                     cameraFeatures.getAutoFocus().getValue(),
                     cameraFeatures.getExposurePoint().checkIsSupported(),
                     cameraFeatures.getFocusPoint().checkIsSupported());
-
+              }
             } catch (Exception e) {
               if (BuildConfig.DEBUG) {
                 Log.i(TAG, "open | onOpened error: " + e.getMessage());

packages/camera/camera_android_camerax/android/src/main/java/io/flutter/plugins/camerax/InstanceManager.java

@@ -146,7 +146,8 @@ public long addHostCreatedInstance(Object instance) {
 
     if (containsInstance(instance)) {
       throw new IllegalArgumentException(
-          String.format("Instance of `%s` has already been added.", instance.getClass()));
+        "Instance of " + instance.getClass() + " has already been added."
+      );
     }
     final long identifier = nextIdentifier++;
     addInstance(instance, identifier);

packages/url_launcher/url_launcher_android/android/src/main/java/io/flutter/plugins/urllauncher/MethodCallHandlerImpl.java

@@ -100,7 +100,7 @@ private void onLaunch(@NonNull MethodCall call, @NonNull Result result, @NonNull
     } else if (launchStatus == LaunchStatus.ACTIVITY_NOT_FOUND) {
       result.error(
           "ACTIVITY_NOT_FOUND",
-          String.format("No Activity found to handle intent { %s }", url),
+          "No Activity found to handle intent { " + url + " }",
           null);
     } else {
       result.success(true);

packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/InstanceManager.java

@@ -146,7 +146,8 @@ public long addHostCreatedInstance(@NonNull Object instance) {
 
     if (containsInstance(instance)) {
       throw new IllegalArgumentException(
-          String.format("Instance of `%s` has already been added.", instance.getClass()));
+        "Instance of " + instance.getClass() + " has already been added."
+      );
     }
     final long identifier = nextIdentifier++;
     addInstance(instance, identifier);