Java tutorial
/* Copyright (C) 2016-2017 Andreas Shimokawa This file is part of Gadgetbridge. Gadgetbridge is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Gadgetbridge is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ package nodomain.freeyourgadget.gadgetbridge.activities; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.support.v4.content.LocalBroadcastManager; import android.widget.SeekBar; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import nodomain.freeyourgadget.gadgetbridge.GBApplication; import nodomain.freeyourgadget.gadgetbridge.R; public class VibrationActivity extends GBActivity { private static final Logger LOG = LoggerFactory.getLogger(VibrationActivity.class); private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { switch (intent.getAction()) { case GBApplication.ACTION_QUIT: { finish(); break; } } } }; private SeekBar seekBar; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_vibration); IntentFilter filter = new IntentFilter(); filter.addAction(GBApplication.ACTION_QUIT); LocalBroadcastManager.getInstance(this).registerReceiver(mReceiver, filter); registerReceiver(mReceiver, filter); seekBar = (SeekBar) findViewById(R.id.vibration_seekbar); seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { if (progress > 0) { // 1-16 progress = progress * 16 - 1; // max 255 } GBApplication.deviceService().onSetConstantVibration(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); } @Override protected void onDestroy() { super.onDestroy(); LocalBroadcastManager.getInstance(this).unregisterReceiver(mReceiver); unregisterReceiver(mReceiver); } }