JobIntentService Tutorial

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    android:padding="16dp"
    tools:context=".MainActivity">

    <EditText
        android:id="@+id/edit_text_input"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Input" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="enqueueWork"
        android:text="Enqueue Work" />

</LinearLayout>

AndroidManifest.xml

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

    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <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">
        <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=".ExampleJobIntentService"
            android:permission="android.permission.BIND_JOB_SERVICE" />
    </application>

</manifest>

ExampleJobIntentService.java

package com.codinginflow.jobintentserviceexample;

import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;
import android.support.annotation.NonNull;
import android.support.v4.app.JobIntentService;
import android.util.Log;

public class ExampleJobIntentService extends JobIntentService {
    private static final String TAG = "ExampleJobIntentService";

    static void enqueueWork(Context context, Intent work) {
        enqueueWork(context, ExampleJobIntentService.class, 123, work);
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Log.d(TAG, "onCreate");
    }

    @Override
    protected void onHandleWork(@NonNull Intent intent) {
        Log.d(TAG, "onHandleWork");

        String input = intent.getStringExtra("inputExtra");

        for (int i = 0; i < 10; i++) {
            Log.d(TAG, input + " - " + i);

            if (isStopped()) return;

            SystemClock.sleep(1000);
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d(TAG, "onDestroy");
    }

    @Override
    public boolean onStopCurrentWork() {
        Log.d(TAG, "onStopCurrentWork");
        return super.onStopCurrentWork();
    }
}

MainActivity.java

package com.codinginflow.jobintentserviceexample;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {
    private EditText editTextInput;

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

        editTextInput = findViewById(R.id.edit_text_input);
    }

    public void enqueueWork(View v) {
        String input = editTextInput.getText().toString();

        Intent serviceIntent = new Intent(this, ExampleJobIntentService.class);
        serviceIntent.putExtra("inputExtra", input);

        ExampleJobIntentService.enqueueWork(this, serviceIntent);
    }
}