Flow strict-local in TimePickerAndroid.android.js (#22188)

Summary:
Related to #22100 . I had this issue before(#22154 & #22172).

Turn Flow strict mode on for Libraries/Components/TimePickerAndroid/TimePickerAndroid.android.js.

- [x] npm run prettier
- [x] npm run flow
- [x] npm run flow-check-ios
- [x] npm run flow-check-android
- [x] npm run lint
- [x] npm run test
- [x] ./scripts/run-android-local-unit-tests.sh

[GENERAL][ENHANCEMENT][TimePickerAndroid.android.js] - apply flow strict-local
Pull Request resolved: https://github.com/facebook/react-native/pull/22188

Reviewed By: TheSavior

Differential Revision: D12972356

Pulled By: RSNara

fbshipit-source-id: 838604a791dfdc86bacf8b49f6c399920a3f57bc

Libraries/Components/TimePickerAndroid/TimePickerAndroid.android.js

@@ -5,13 +5,18 @@
  * LICENSE file in the root directory of this source tree.
  *
  * @format
- * @flow
+ * @flow strict-local
  */
 
 'use strict';
 
 const TimePickerModule = require('NativeModules').TimePickerAndroid;
 
+import type {
+  TimePickerOptions,
+  TimePickerResult,
+} from './TimePickerAndroidTypes';
+
 /**
  * Opens the standard Android time picker dialog.
  *
@@ -52,22 +57,18 @@ class TimePickerAndroid {
    * still be resolved with action being `TimePickerAndroid.dismissedAction` and all the other keys
    * being undefined. **Always** check whether the `action` before reading the values.
    */
-  static async open(options: Object): Promise<Object> {
+  static async open(options: TimePickerOptions): Promise<TimePickerResult> {
     return TimePickerModule.open(options);
   }
 
   /**
    * A time has been selected.
    */
-  static get timeSetAction() {
-    return 'timeSetAction';
-  }
+  static +timeSetAction: 'timeSetAction' = 'timeSetAction';
   /**
    * The dialog has been dismissed.
    */
-  static get dismissedAction() {
-    return 'dismissedAction';
-  }
+  static +dismissedAction: 'dismissedAction' = 'dismissedAction';
 }
 
 module.exports = TimePickerAndroid;

Libraries/Components/TimePickerAndroid/TimePickerAndroidTypes.js

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @flow strict-local
+ */
+
+'use strict';
+
+export type TimePickerOptions = {|
+  hour?: number,
+  minute?: number,
+  is24Hour?: boolean,
+  mode?: 'clock' | 'spinner' | 'default',
+|};
+
+export type TimePickerResult = $ReadOnly<{|
+  action: string,
+  hour: number,
+  minute: number,
+|}>;