Getting 7 warnings at compile time

[kamleshwebtech]

Launching lib\main.dart on Redmi Note 4 in debug mode...
D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:9: warning: [deprecation] AsyncTask in android.os has been deprecated
import android.os.AsyncTask;
^
D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:121: warning: [deprecation] AsyncTask in android.os has been deprecated
new AsyncTask<Void, Void, Boolean>() {
^

D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:121: warning: [deprecation] AsyncTask() in AsyncTask has been deprecated
new AsyncTask<Void, Void, Boolean>() {
^

D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:123: warning: [deprecation] doInBackground(Params...) in AsyncTask has been deprecated
protected Boolean doInBackground(Void... voids) {
^
where Params,Result are type-variables:
Params extends Object declared in class AsyncTask
Result extends Object declared in class AsyncTask
D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:121: warning: [deprecation] AsyncTask() in AsyncTask has been deprecated
new AsyncTask<Void, Void, Boolean>() {
^
D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:128: warning: [deprecation] onPostExecute(Result) in AsyncTask has been deprecated
protected void onPostExecute(Boolean value) {
^
where Result is a type-variable:
Result extends Object declared in class AsyncTask
D:\john\flutter.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.12+4\android\src\main\java\io\flutter\plugins\sharedpreferences\MethodCallHandlerImpl.java:131: warning: [deprecation] execute(Params...) in AsyncTask has been deprecated
}.execute();
^
where Params,Progress,Result are type-variables:
Params extends Object declared in class AsyncTask
Progress extends Object declared in class AsyncTask
Result extends Object declared in class AsyncTask
7 warnings
Note: D:\john\flutter.pub-cache\hosted\pub.dartlang.org\emoji_picker-0.1.0\android\src\main\java\com\jeffg\emoji_picker\EmojiPickerPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
√ Built build\app\outputs\flutter-apk\app-debug.apk.

Any suggestion, what is the issue and how can we fix it. Thanks a lot.

[Fintasys]

@kamleshwebtech Seems you have a lot of issue, maybe you should try to checkout this package
https://pub.dev/packages/emoji_picker_flutter