Gadgetbridge/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/ControlCenter.java

package nodomain.freeyourgadget.gadgetbridge;

import android.app.NotificationManager;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.NotificationCompat;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import java.util.UUID;

public class ControlCenter extends ActionBarActivity {
    // SPP Serial Device UUID
    private static final UUID SERIAL_UUID = UUID.fromString("00001101-0000-1000-8000-00805f9b34fb");

    Button sendButton;
    Button testNotificationButton;
    Button startServiceButton;
    Button setTimeButton;
    EditText editTitle;
    EditText editContent;

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


        editTitle = (EditText) findViewById(R.id.editTitle);
        editContent = (EditText) findViewById(R.id.editContent);
        startServiceButton = (Button) findViewById(R.id.startServiceButton);
        startServiceButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent startIntent = new Intent(ControlCenter.this, BluetoothCommunicationService.class);
                startIntent.setAction(BluetoothCommunicationService.ACTION_START);
                startService(startIntent);
            }
        });
        sendButton = (Button) findViewById(R.id.sendButton);
        sendButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent startIntent = new Intent(ControlCenter.this, BluetoothCommunicationService.class);
                startIntent.setAction(BluetoothCommunicationService.ACTION_SENDMESSAGE);
                startIntent.putExtra("notification_title", editTitle.getText().toString());
                startIntent.putExtra("notification_content", editContent.getText().toString());
                startService(startIntent);
            }
        });
        setTimeButton = (Button) findViewById(R.id.setTimeButton);
        setTimeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent startIntent = new Intent(ControlCenter.this, BluetoothCommunicationService.class);
                startIntent.setAction(BluetoothCommunicationService.ACTION_SETTIME);
                startService(startIntent);
            }
        });

        testNotificationButton = (Button) findViewById(R.id.testNotificationButton);
        testNotificationButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                testNotification();
            }
        });

        /*
         * Ask for permission to intercept notifications on first run.
         * TODO: allow re-request in preferences
         */
        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
        if (sharedPrefs.getBoolean("firstrun", true)) {
            sharedPrefs.edit().putBoolean("firstrun", false).commit();
            Intent enableIntent = new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS");
            startActivity(enableIntent);
        }
    }

    private void testNotification() {
        NotificationManager nManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        NotificationCompat.Builder ncomp = new NotificationCompat.Builder(this);
        ncomp.setContentTitle("Test Notification");
        ncomp.setContentText("This is a Test Notification from Gadgetbridge");
        ncomp.setTicker("This is a Test Notification from Gadgetbridge");
        ncomp.setSmallIcon(R.drawable.ic_launcher);
        ncomp.setAutoCancel(true);
        nManager.notify((int) System.currentTimeMillis(), ncomp.build());
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            //Intent intent = new Intent(this, SettingsActivity.class);
            //startActivity(intent);
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}