services

MainActivity.java
==================
package com.repoai.mycustomservices;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {
    Context context;
    Intent myServiceClient;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setPointer();
    }

    private void setPointer() {
        this.context=this;
        myServiceClient = new Intent(context,MyService.class);
        findViewById(R.id.btnStart).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //start service
                startService(myServiceClient);
            }
        });
        findViewById(R.id.btnStop).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //stop service
                stopService(myServiceClient);
            }
        });
    }
}




activity_main.xml
=====================
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    android:background="#000">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Start me"
        android:background="#00ff00"
        android:textColor="#ff0000"
        android:textSize="32sp"
        android:id="@+id/btnStart"
        />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Stop me"
        android:background="#ff0000"
        android:textColor="#00ff00"
        android:textSize="32sp"
        android:layout_marginTop="32dp"
        android:id="@+id/btnStop"
        />


</LinearLayout>



MyService.java
==================
package com.repoai.mycustomservices;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;

import androidx.annotation.Nullable;

public class MyService extends Service {
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Toast.makeText(this, "Gal hav a mac, soon comes the bucks!!!", Toast.LENGTH_SHORT).show();
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        Toast.makeText(this, "Kaput !!!", Toast.LENGTH_LONG).show();
        super.onDestroy();
    }
}



AndroidMenifest.xml
=====================
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.repoai.mycustomservices">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme"
        tools:ignore="GoogleAppIndexingWarning">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
       <service android:name=".MyService"/>
    </application>

</manifest>