activity.android.ts

import {
    Application,
    setActivityCallbacks,
    AndroidActivityCallbacks,
} from "@nativescript/core";
import { InAppBrowser } from "nativescript-inappbrowser";

@NativeClass()
@JavaProxy("org.nativescript.demo.MainActivity")
export class Activity extends androidx.appcompat.app.AppCompatActivity {
    public isNativeScriptActivity;

    private _callbacks: AndroidActivityCallbacks;

    public onCreate(savedInstanceState: android.os.Bundle): void {
        Application.android.init(this.getApplication());
        // Set the isNativeScriptActivity in onCreate (as done in the original NativeScript activity code)
        // The JS constructor might not be called because the activity is created from Android.
        this.isNativeScriptActivity = true;
        if (!this._callbacks) {
            setActivityCallbacks(this);
        }

        this._callbacks.onCreate(
            this,
            savedInstanceState,
            this.getIntent(),
            super.onCreate
        );
    }

    public onNewIntent(intent: android.content.Intent): void {
        this._callbacks.onNewIntent(
            this,
            intent,
            super.setIntent,
            super.onNewIntent
        );
    }

    public onSaveInstanceState(outState: android.os.Bundle): void {
        this._callbacks.onSaveInstanceState(
            this,
            outState,
            super.onSaveInstanceState
        );
    }

    public onStart(): void {
        this._callbacks.onStart(this, super.onStart);
        // InAppBrowser initialization (Connect to the Custom Tabs service)
        InAppBrowser.onStart();
    }

    public onStop(): void {
        this._callbacks.onStop(this, super.onStop);
    }

    public onDestroy(): void {
        this._callbacks.onDestroy(this, super.onDestroy);
    }

    public onPostResume(): void {
        this._callbacks.onPostResume(this, super.onPostResume);
    }

    public onBackPressed(): void {
        this._callbacks.onBackPressed(this, super.onBackPressed);
    }

    public onRequestPermissionsResult(
        requestCode: number,
        permissions: Array<string>,
        grantResults: Array<number>
    ): void {
        this._callbacks.onRequestPermissionsResult(
            this,
            requestCode,
            permissions,
            grantResults,
            undefined /*TODO: Enable if needed*/
        );
    }

    public onActivityResult(
        requestCode: number,
        resultCode: number,
        data: android.content.Intent
    ): void {
        this._callbacks.onActivityResult(
            this,
            requestCode,
            resultCode,
            data,
            super.onActivityResult
        );
    }
}