an example with a JobIntentService

BoradcastBoot2/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

BoradcastBoot2/app/.gitignore

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+/build

BoradcastBoot2/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 26
+ buildToolsVersion "26.0.1"
+ defaultConfig {
+ applicationId "edu.cs4730.boradcastboot2"
+ minSdkVersion 16
+ targetSdkVersion 26
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+dependencies {
+ compile fileTree(dir: 'libs', include: ['*.jar'])
+ compile 'com.android.support:appcompat-v7:26.0.2'
+ compile 'com.android.support:support-compat:26.0.2'
+ compile 'com.android.support.constraint:constraint-layout:1.0.2'
+ compile 'com.android.support:support-v4:26.+'
+}

BoradcastBoot2/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Android\android-sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+# http:https://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

BoradcastBoot2/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http:https://schemas.android.com/apk/res/android"
+ package="edu.cs4730.boradcastboot2">
+
+ <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
+ <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>
+
+ <receiver
+ android:name=".MyReceiver"
+ android:enabled="true"
+ android:exported="true">
+ <intent-filter>
+ <action android:name="android.intent.action.BOOT_COMPLETED" />
+ </intent-filter>
+ </receiver>
+
+ <service
+ android:name=".MyJobIntentService"
+ android:exported="true"
+ android:permission="android.permission.BIND_JOB_SERVICE" />
+ </application>
+
+</manifest>

BoradcastBoot2/app/src/main/java/edu/cs4730/boradcastboot2/MainActivity.java

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+package edu.cs4730.boradcastboot2;
+
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.graphics.Color;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+
+public class MainActivity extends AppCompatActivity {
+ final String TAG = "MainActivity";
+ public static String id = "test_channel_01";
+ MainFragment mFragment;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ String info = "Nothing";
+ Bundle extras = getIntent().getExtras();
+ if (extras != null) {
+ info = extras.getString("mText");
+ }
+ Log.wtf(TAG, "info is " + info);
+ mFragment = MainFragment.newInstance(info);
+
+ if (savedInstanceState == null) {
+ getSupportFragmentManager().beginTransaction()
+ .add(R.id.container, mFragment).commit();
+ } else {
+ getSupportFragmentManager().beginTransaction()
+ .replace(R.id.container, mFragment).commit();
+ }
+
+
+ createchannel();
+
+ }
+
+
+ /*
+* for API 26+ create notification channels
+*/
+ private void createchannel() {
+ if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+ NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+ NotificationChannel mChannel = new NotificationChannel(id,
+ getString(R.string.channel_name), //name of the channel
+ NotificationManager.IMPORTANCE_DEFAULT); //importance level
+ //important level: default is is high on the phone. high is urgent on the phone. low is medium, so none is low?
+ // Configure the notification channel.
+ mChannel.setDescription(getString(R.string.channel_description));
+ mChannel.enableLights(true);
+ // Sets the notification light color for notifications posted to this channel, if the device supports this feature.
+ mChannel.setLightColor(Color.RED);
+ mChannel.enableVibration(true);
+ mChannel.setShowBadge(true);
+ mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
+ nm.createNotificationChannel(mChannel);
+
+ }
+ }
+
+}

BoradcastBoot2/app/src/main/java/edu/cs4730/boradcastboot2/MainFragment.java

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+package edu.cs4730.boradcastboot2;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+/**
+ * All this fragment does is display information.
+ * <p>
+ * It also has a button to "jump start" the process. Basically the first message.
+ */
+
+public class MainFragment extends Fragment {
+ private static final String ARG_PARAM1 = "param1";
+
+ String info = "";
+ TextView logger;
+
+ public MainFragment() {
+ // Required empty public constructor
+ }
+
+ public static MainFragment newInstance(String param1) {
+ MainFragment fragment = new MainFragment();
+ Bundle args = new Bundle();
+ args.putString(ARG_PARAM1, param1);
+ fragment.setArguments(args);
+ return fragment;
+ }
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ if (getArguments() != null) {
+ info = getArguments().getString(ARG_PARAM1);
+
+ }
+ }
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container,
+ Bundle savedInstanceState) {
+ // Inflate the layout for this fragment
+ View myView = inflater.inflate(R.layout.fragment_main, container, false);
+ logger = myView.findViewById(R.id.textView2);
+ logger.setText(info);
+
+ myView.findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View view) {
+ Intent intent = new Intent();
+ //normally this intent should have something, like data...
+ MyJobIntentService.enqueueWork(getContext(),intent);
+ }
+ });
+ return myView;
+ }
+
+}