[many] Update example android apps to target SDK level 34. (flutter#7587)

Bump up target SDK for each Android example app, bump version and
changelog, and as necessary export activities and update permissions.

For each package, I ensured the example app ran on an emulator before
and after the upgrade and compared its behavior, as well as running the
integration tests to confirm they pass.

flutter#152929

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there for submitting PRs.
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responsibilities.
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auto-formatter. (Unlike the flutter/flutter repo, the flutter/packages
repo does use `dart format`.)
- [ ] I signed the [CLA].
- [x] The title of the PR starts with the name of the package surrounded
by square brackets, e.g. `[shared_preferences]`
- [x] I [linked to at least one issue that this PR fixes] in the
description above.
- [x] I updated `pubspec.yaml` with an appropriate new version according
to the [pub versioning philosophy], or this PR is [exempt from version
changes].
- [x] I updated `CHANGELOG.md` to add a description of the change,
[following repository CHANGELOG style], or this PR is [exempt from
CHANGELOG changes].
- [ ] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] All existing and new tests are passing.

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<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/packages/blob/main/CONTRIBUTING.md
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md
[relevant style guides]:
https://github.com/flutter/packages/blob/main/CONTRIBUTING.md#style
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[linked to at least one issue that this PR fixes]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md#overview
[pub versioning philosophy]: https://dart.dev/tools/pub/versioning
[exempt from version changes]:
https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#version
[following repository CHANGELOG style]:
https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changelog-style
[exempt from CHANGELOG changes]:
https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changelog
[test-exempt]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md#tests

Author: yaakovschectman

packages/file_selector/file_selector_android/example/android/app/build.gradle

@@ -41,7 +41,7 @@ android {
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
         minSdkVersion 21
-        targetSdkVersion 33
+        targetSdkVersion 34
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

packages/flutter_plugin_android_lifecycle/example/android/app/build.gradle

@@ -32,7 +32,7 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.plugins.flutter_plugin_android_lifecycle_example"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 28
+        targetSdkVersion 34
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

packages/flutter_plugin_android_lifecycle/example/android/app/src/main/AndroidManifest.xml

@@ -4,6 +4,7 @@
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"

packages/google_maps_flutter/google_maps_flutter_android/example/android/app/build.gradle

@@ -32,7 +32,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.plugins.googlemapsexample"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 28
+        targetSdkVersion 34
         multiDexEnabled true
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

packages/google_maps_flutter/google_maps_flutter_android/example/android/app/src/main/AndroidManifest.xml

@@ -1,8 +1,10 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="io.flutter.plugins.googlemapsexample">
 
     <uses-permission android:name="android.permission.INTERNET"/>
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
+        tools:ignore="CoarseFineLocation" />
 
     <application android:label="google_maps_flutter_example" android:icon="@mipmap/ic_launcher">
         <meta-data
@@ -13,6 +15,7 @@
             android:name="com.google.android.geo.API_KEY"
             android:value="${mapsApiKey}" />
         <activity android:name="io.flutter.embedding.android.FlutterActivity"
+            android:exported="true"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale"
             android:hardwareAccelerated="true"

packages/google_sign_in/google_sign_in_android/example/android/app/build.gradle

@@ -32,7 +32,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.plugins.googlesigninexample"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 28
+        targetSdkVersion 34
         multiDexEnabled true
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

packages/google_sign_in/google_sign_in_android/example/android/app/src/main/AndroidManifest.xml

@@ -5,7 +5,8 @@
 
     <application>
         <activity android:name="io.flutter.embedding.android.FlutterActivity"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
+            android:exported="true"
+            android:theme="@android:style/Theme.Black.NoTitleBar"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
                   android:hardwareAccelerated="true"
                   android:windowSoftInputMode="adjustResize">

packages/image_picker/image_picker_android/example/android/app/build.gradle

@@ -33,7 +33,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.plugins.imagepicker.example"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 33
+        targetSdkVersion 34
         multiDexEnabled true
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

packages/local_auth/local_auth_android/example/android/app/build.gradle

@@ -32,7 +32,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.plugins.localauthexample"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 28
+        targetSdkVersion 34
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

packages/local_auth/local_auth_android/example/android/app/src/main/AndroidManifest.xml

@@ -6,7 +6,8 @@
 
     <application android:label="local_auth_example" android:icon="@mipmap/ic_launcher">
         <activity android:name="io.flutter.embedding.android.FlutterFragmentActivity"
-                  android:launchMode="singleTop"
+            android:exported="true"
+            android:launchMode="singleTop"
                   android:theme="@style/Theme.AppCompat.Light"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
                   android:hardwareAccelerated="true"