Java tutorial
/* Copyright (C) 2015-2017 Andreas Shimokawa, Carsten Pfeiffer, Daniele Gobbetti, Lem Dulfo 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.adapter; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.support.design.widget.Snackbar; import android.support.v4.content.LocalBroadcastManager; import android.support.v7.widget.CardView; import android.support.v7.widget.RecyclerView; import android.transition.TransitionManager; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.ProgressBar; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast; import java.util.List; import nodomain.freeyourgadget.gadgetbridge.GBApplication; import nodomain.freeyourgadget.gadgetbridge.R; import nodomain.freeyourgadget.gadgetbridge.activities.ConfigureAlarms; import nodomain.freeyourgadget.gadgetbridge.activities.VibrationActivity; import nodomain.freeyourgadget.gadgetbridge.activities.charts.ChartsActivity; import nodomain.freeyourgadget.gadgetbridge.devices.DeviceCoordinator; import nodomain.freeyourgadget.gadgetbridge.devices.DeviceManager; import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice; import nodomain.freeyourgadget.gadgetbridge.model.BatteryState; import nodomain.freeyourgadget.gadgetbridge.model.DeviceType; import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper; import nodomain.freeyourgadget.gadgetbridge.util.GB; /** * Adapter for displaying GBDevice instances. */ public class GBDeviceAdapterv2 extends RecyclerView.Adapter<GBDeviceAdapterv2.ViewHolder> { private final Context context; private List<GBDevice> deviceList; private int expandedDevicePosition = RecyclerView.NO_POSITION; private ViewGroup parent; public GBDeviceAdapterv2(Context context, List<GBDevice> deviceList) { this.context = context; this.deviceList = deviceList; } @Override public GBDeviceAdapterv2.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { this.parent = parent; View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.device_itemv2, parent, false); ViewHolder vh = new ViewHolder(view); return vh; } @Override public void onBindViewHolder(ViewHolder holder, final int position) { final GBDevice device = deviceList.get(position); final DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(device); holder.container.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (device.isInitialized() || device.isConnected()) { showTransientSnackbar(R.string.controlcenter_snackbar_need_longpress); } else { showTransientSnackbar(R.string.controlcenter_snackbar_connecting); GBApplication.deviceService().connect(device); } } }); holder.container.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { if (device.getState() != GBDevice.State.NOT_CONNECTED) { showTransientSnackbar(R.string.controlcenter_snackbar_disconnecting); GBApplication.deviceService().disconnect(); } return true; } }); holder.deviceImageView.setImageResource(R.drawable.level_list_device); //level-list does not allow negative values, hence we always add 100 to the key. holder.deviceImageView.setImageLevel(device.getType().getKey() + 100 + (device.isInitialized() ? 100 : 0)); holder.deviceNameLabel.setText(getUniqueDeviceName(device)); if (device.isBusy()) { holder.deviceStatusLabel.setText(device.getBusyTask()); holder.busyIndicator.setVisibility(View.VISIBLE); } else { holder.deviceStatusLabel.setText(device.getStateString()); holder.busyIndicator.setVisibility(View.INVISIBLE); } //begin of action row //battery holder.batteryStatusBox.setVisibility(View.GONE); short batteryLevel = device.getBatteryLevel(); if (batteryLevel != GBDevice.BATTERY_UNKNOWN) { holder.batteryStatusBox.setVisibility(View.VISIBLE); holder.batteryStatusLabel.setText(device.getBatteryLevel() + "%"); BatteryState batteryState = device.getBatteryState(); if (BatteryState.BATTERY_CHARGING.equals(batteryState) || BatteryState.BATTERY_CHARGING_FULL.equals(batteryState)) { holder.batteryIcon.setImageLevel(device.getBatteryLevel() + 100); } else { holder.batteryIcon.setImageLevel(device.getBatteryLevel()); } } //fetch activity data holder.fetchActivityDataBox.setVisibility( (device.isInitialized() && coordinator.supportsActivityDataFetching()) ? View.VISIBLE : View.GONE); holder.fetchActivityData.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showTransientSnackbar(R.string.busy_task_fetch_activity_data); GBApplication.deviceService().onFetchActivityData(); } }); //take screenshot holder.takeScreenshotView.setVisibility( (device.isInitialized() && coordinator.supportsScreenshots()) ? View.VISIBLE : View.GONE); holder.takeScreenshotView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showTransientSnackbar(R.string.controlcenter_snackbar_requested_screenshot); GBApplication.deviceService().onScreenshotReq(); } }); //manage apps holder.manageAppsView.setVisibility( (device.isInitialized() && coordinator.supportsAppsManagement()) ? View.VISIBLE : View.GONE); holder.manageAppsView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(device); Class<? extends Activity> appsManagementActivity = coordinator.getAppsManagementActivity(); if (appsManagementActivity != null) { Intent startIntent = new Intent(context, appsManagementActivity); startIntent.putExtra(GBDevice.EXTRA_DEVICE, device); context.startActivity(startIntent); } } }); //set alarms holder.setAlarmsView.setVisibility(coordinator.supportsAlarmConfiguration() ? View.VISIBLE : View.GONE); holder.setAlarmsView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent startIntent; startIntent = new Intent(context, ConfigureAlarms.class); context.startActivity(startIntent); } }); //show graphs holder.showActivityGraphs.setVisibility(coordinator.supportsActivityTracking() ? View.VISIBLE : View.GONE); holder.showActivityGraphs.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent startIntent; startIntent = new Intent(context, ChartsActivity.class); startIntent.putExtra(GBDevice.EXTRA_DEVICE, device); context.startActivity(startIntent); } }); ItemWithDetailsAdapter infoAdapter = new ItemWithDetailsAdapter(context, device.getDeviceInfos()); infoAdapter.setHorizontalAlignment(true); holder.deviceInfoList.setAdapter(infoAdapter); justifyListViewHeightBasedOnChildren(holder.deviceInfoList); holder.deviceInfoList.setFocusable(false); final boolean detailsShown = position == expandedDevicePosition; boolean showInfoIcon = device.hasDeviceInfos() && !device.isBusy(); holder.deviceInfoView.setVisibility(showInfoIcon ? View.VISIBLE : View.GONE); holder.deviceInfoBox.setActivated(detailsShown); holder.deviceInfoBox.setVisibility(detailsShown ? View.VISIBLE : View.GONE); holder.deviceInfoView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { expandedDevicePosition = detailsShown ? -1 : position; TransitionManager.beginDelayedTransition(parent); notifyDataSetChanged(); } } ); holder.findDevice.setVisibility(device.isInitialized() ? View.VISIBLE : View.GONE); holder.findDevice.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (device.getType() == DeviceType.VIBRATISSIMO) { Intent startIntent; startIntent = new Intent(context, VibrationActivity.class); startIntent.putExtra(GBDevice.EXTRA_DEVICE, device); context.startActivity(startIntent); return; } GBApplication.deviceService().onFindDevice(true); //TODO: extract string resource if we like this solution. Snackbar.make(parent, R.string.control_center_find_lost_device, Snackbar.LENGTH_INDEFINITE) .setAction("Found it!", new View.OnClickListener() { @Override public void onClick(View v) { GBApplication.deviceService().onFindDevice(false); } }).setCallback(new Snackbar.Callback() { @Override public void onDismissed(Snackbar snackbar, int event) { GBApplication.deviceService().onFindDevice(false); super.onDismissed(snackbar, event); } }).show(); // ProgressDialog.show( // context, // context.getString(R.string.control_center_find_lost_device), // context.getString(R.string.control_center_cancel_to_stop_vibration), // true, true, // new DialogInterface.OnCancelListener() { // @Override // public void onCancel(DialogInterface dialog) { // GBApplication.deviceService().onFindDevice(false); // } // }); } } ); //remove device, hidden under details holder.removeDevice.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { new AlertDialog.Builder(context).setCancelable(true) .setTitle(context.getString(R.string.controlcenter_delete_device_name, device.getName())) .setMessage(R.string.controlcenter_delete_device_dialogmessage) .setPositiveButton(R.string.Delete, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { try { DeviceCoordinator coordinator = DeviceHelper.getInstance() .getCoordinator(device); if (coordinator != null) { coordinator.deleteDevice(device); } DeviceHelper.getInstance().removeBond(device); } catch (Exception ex) { GB.toast(context, "Error deleting device: " + ex.getMessage(), Toast.LENGTH_LONG, GB.ERROR, ex); } finally { Intent refreshIntent = new Intent(DeviceManager.ACTION_REFRESH_DEVICELIST); LocalBroadcastManager.getInstance(context).sendBroadcast(refreshIntent); } } }).setNegativeButton(R.string.Cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // do nothing } }).show(); } }); } @Override public int getItemCount() { return deviceList.size(); } static class ViewHolder extends RecyclerView.ViewHolder { CardView container; ImageView deviceImageView; TextView deviceNameLabel; TextView deviceStatusLabel; //actions LinearLayout batteryStatusBox; TextView batteryStatusLabel; ImageView batteryIcon; LinearLayout fetchActivityDataBox; ImageView fetchActivityData; ProgressBar busyIndicator; ImageView takeScreenshotView; ImageView manageAppsView; ImageView setAlarmsView; ImageView showActivityGraphs; ImageView deviceInfoView; //overflow final RelativeLayout deviceInfoBox; ListView deviceInfoList; ImageView findDevice; ImageView removeDevice; ViewHolder(View view) { super(view); container = (CardView) view.findViewById(R.id.card_view); deviceImageView = (ImageView) view.findViewById(R.id.device_image); deviceNameLabel = (TextView) view.findViewById(R.id.device_name); deviceStatusLabel = (TextView) view.findViewById(R.id.device_status); //actions batteryStatusBox = (LinearLayout) view.findViewById(R.id.device_battery_status_box); batteryStatusLabel = (TextView) view.findViewById(R.id.battery_status); batteryIcon = (ImageView) view.findViewById(R.id.device_battery_status); fetchActivityDataBox = (LinearLayout) view.findViewById(R.id.device_action_fetch_activity_box); fetchActivityData = (ImageView) view.findViewById(R.id.device_action_fetch_activity); busyIndicator = (ProgressBar) view.findViewById(R.id.device_busy_indicator); takeScreenshotView = (ImageView) view.findViewById(R.id.device_action_take_screenshot); manageAppsView = (ImageView) view.findViewById(R.id.device_action_manage_apps); setAlarmsView = (ImageView) view.findViewById(R.id.device_action_set_alarms); showActivityGraphs = (ImageView) view.findViewById(R.id.device_action_show_activity_graphs); deviceInfoView = (ImageView) view.findViewById(R.id.device_info_image); deviceInfoBox = (RelativeLayout) view.findViewById(R.id.device_item_infos_box); //overflow deviceInfoList = (ListView) view.findViewById(R.id.device_item_infos); findDevice = (ImageView) view.findViewById(R.id.device_action_find); removeDevice = (ImageView) view.findViewById(R.id.device_action_remove); } } public void justifyListViewHeightBasedOnChildren(ListView listView) { ArrayAdapter adapter = (ArrayAdapter) listView.getAdapter(); if (adapter == null) { return; } ViewGroup vg = listView; int totalHeight = 0; for (int i = 0; i < adapter.getCount(); i++) { View listItem = adapter.getView(i, null, vg); listItem.measure(0, 0); totalHeight += listItem.getMeasuredHeight(); } ViewGroup.LayoutParams par = listView.getLayoutParams(); par.height = totalHeight + (listView.getDividerHeight() * (adapter.getCount() - 1)); listView.setLayoutParams(par); listView.requestLayout(); } private String getUniqueDeviceName(GBDevice device) { String deviceName = device.getName(); if (!isUniqueDeviceName(device, deviceName)) { if (device.getModel() != null) { deviceName = deviceName + " " + device.getModel(); if (!isUniqueDeviceName(device, deviceName)) { deviceName = deviceName + " " + device.getShortAddress(); } } else { deviceName = deviceName + " " + device.getShortAddress(); } } return deviceName; } private boolean isUniqueDeviceName(GBDevice device, String deviceName) { for (int i = 0; i < deviceList.size(); i++) { GBDevice item = deviceList.get(i); if (item == device) { continue; } if (deviceName.equals(item.getName())) { return false; } } return true; } private void showTransientSnackbar(int resource) { Snackbar snackbar = Snackbar.make(parent, resource, Snackbar.LENGTH_SHORT); View snackbarView = snackbar.getView(); // change snackbar text color int snackbarTextId = android.support.design.R.id.snackbar_text; TextView textView = (TextView) snackbarView.findViewById(snackbarTextId); //textView.setTextColor(); //snackbarView.setBackgroundColor(Color.MAGENTA); snackbar.show(); } }