Benznest studios test about using Android notifications.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    tools:context="com.benzneststudios.testnotification.MainActivity">
    <Button
        android:id="@+id/btn_show_notification"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Show notification" />
</FrameLayout>

activity_main2.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.benzneststudios.testnotification.Main2Activity">
<TextView
    android:id="@+id/tv_answer"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="36sp"
    android:text="Test"
    android:layout_gravity="center_horizontal"/>
</FrameLayout>

AndroidManifest.xml

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        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>
        <activity android:name=".Main2Activity"></activity>
    </application>

</manifest>

Main2Activity.java

package com.benzneststudios.testnotification;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

public class Main2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        TextView tv = (TextView) findViewById(R.id.tv_answer);
        Bundle bundle = getIntent().getExtras();
        if(bundle != null){
            tv.setText(bundle.getString("MESSAGE"));
        }
    }
}

MainActivity.java

package com.benzneststudios.testnotification;

import android.annotation.TargetApi;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.RemoteInput;
import android.support.v4.app.TaskStackBuilder;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    Button btnShowNotification;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnShowNotification = (Button) findViewById(R.id.btn_show_notification);
        btnShowNotification.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                showNotification();

            }
        });

    }

    @TargetApi(Build.VERSION_CODES.KITKAT_WATCH)
    private void showNotification() {
        Context context = MainActivity.this;
        int color = ContextCompat.getColor(context, R.color.colorPrimary);
        Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(),
                R.mipmap.ic_launcher);

        final NotificationManager notificationManager =
                (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

       final String KEY_TEXT_REPLY = "ACTION_REPLY";
        RemoteInput remoteInput = new RemoteInput.Builder(KEY_TEXT_REPLY)
                .setLabel("REPLY")
                .build();

        NotificationCompat.Action action =
                new NotificationCompat.Action.Builder(R.mipmap.ic_launcher,"OK", getPendingIntent(context,"Hello World"))
                        .build();


        final NotificationCompat.Builder notification = new NotificationCompat.Builder(context)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setLargeIcon(bitmap)
                .setContentTitle("Hello World")
                .setContentText("Good night.")
                .setAutoCancel(true)
                .setColor(color)
                .addAction(action);

        notificationManager.notify(1000, notification.build());
    }

    private PendingIntent getPendingIntent(Context context, String message) {
        Intent intent = new Intent(context, Main2Activity.class);
        intent.putExtra("MESSAGE", message);
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addParentStack(Main2Activity.class);
        stackBuilder.addNextIntent(intent);
        return stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
    }

    private PendingIntent getPendingIntentURL() {
        String url = "http://benzneststudios.com";
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        return PendingIntent.getActivity(MainActivity.this, 0, intent, 0);
    }
}