Java tutorial
/* * Copyright 2016 . Anargyros Kiourkos. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and limitations under the License. */ package anakiou.com.picontrol.ui.fragments; import android.annotation.SuppressLint; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.os.Handler; import android.preference.PreferenceManager; import android.support.design.widget.Snackbar; import android.support.v4.app.Fragment; import android.support.v4.os.ResultReceiver; import android.support.v4.widget.SwipeRefreshLayout; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import android.widget.ToggleButton; import java.util.List; import anakiou.com.picontrol.R; import anakiou.com.picontrol.dao.OutputDAO; import anakiou.com.picontrol.domain.Output; import anakiou.com.picontrol.service.NetworkService; import anakiou.com.picontrol.service.OutputIntentService; import anakiou.com.picontrol.ui.activities.SettingsActivity; import anakiou.com.picontrol.util.Constants; public class OutputsFragment extends Fragment { private OutputsResultReceiver outputsResultReceiver; private SwipeRefreshLayout refreshLayout; private ImageView out0Image; private ImageView out1Image; private ImageView out2Image; private ImageView out3Image; private ImageView out4Image; private ImageView out5Image; private ImageView out6Image; private ImageView out7Image; private ToggleButton out0Btn; private ToggleButton out1Btn; private ToggleButton out2Btn; private ToggleButton out3Btn; private ToggleButton out4Btn; private ToggleButton out5Btn; private ToggleButton out6Btn; private ToggleButton out7Btn; private TextView out0NameText; private TextView out1NameText; private TextView out2NameText; private TextView out3NameText; private TextView out4NameText; private TextView out5NameText; private TextView out6NameText; private TextView out7NameText; private NetworkService networkService; private OutputDAO outputDAO; private Handler refreshHandler; private OutputsStatusRefreshRunnable runnable; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setHasOptionsMenu(true); SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getActivity()); int refreshInterval = Integer.parseInt(sharedPref.getString(Constants.SET_REFRESH_INTERVAL, "5000")); networkService = NetworkService.get(getActivity().getApplicationContext()); outputDAO = outputDAO.get(getActivity().getApplicationContext()); outputsResultReceiver = new OutputsResultReceiver(new Handler()); refreshHandler = new Handler(); runnable = new OutputsStatusRefreshRunnable(refreshInterval); refreshHandler.postDelayed(runnable, 0000); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { final View view = inflater.inflate(R.layout.fragment_outputs, container, false); setupImageViews(view); setupButtonViews(view); setupNameViews(view); refreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.outputs_swipe_layout); refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { refreshFromServer(); } }); updateUI(); return view; } @Override public void onStop() { super.onStop(); refreshHandler.removeCallbacks(runnable); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); inflater.inflate(R.menu.menu_settings, menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_item_settings: Intent i = new Intent(getContext(), SettingsActivity.class); startActivity(i); break; } return true; } private void refreshFromServer() { if (networkService.isNetworkAvailableAndConnected()) { Intent intent = OutputIntentService.newRefreshIntent(getContext()); intent.putExtra(Constants.RECEIVER, outputsResultReceiver); getActivity().startService(intent); } else { refreshLayout.setRefreshing(false); if (getView() != null) Snackbar.make(getView(), getString(R.string.network_required_msg), Snackbar.LENGTH_SHORT).show(); } } private void updateUI() { List<Output> outputList = outputDAO.findAll(); updatedImageViews(outputList); updatedButtonViews(outputList); updatedNameViews(outputList); } private void setupImageViews(View v) { out0Image = (ImageView) v.findViewById(R.id.output_0_image_view); out1Image = (ImageView) v.findViewById(R.id.output_1_image_view); out2Image = (ImageView) v.findViewById(R.id.output_2_image_view); out3Image = (ImageView) v.findViewById(R.id.output_3_image_view); out4Image = (ImageView) v.findViewById(R.id.output_4_image_view); out5Image = (ImageView) v.findViewById(R.id.output_5_image_view); out6Image = (ImageView) v.findViewById(R.id.output_6_image_view); out7Image = (ImageView) v.findViewById(R.id.output_7_image_view); } private void setupNameViews(View v) { out0NameText = (TextView) v.findViewById(R.id.output_0_name_view); out1NameText = (TextView) v.findViewById(R.id.output_1_name_view); out2NameText = (TextView) v.findViewById(R.id.output_2_name_view); out3NameText = (TextView) v.findViewById(R.id.output_3_name_view); out4NameText = (TextView) v.findViewById(R.id.output_4_name_view); out5NameText = (TextView) v.findViewById(R.id.output_5_name_view); out6NameText = (TextView) v.findViewById(R.id.output_6_name_view); out7NameText = (TextView) v.findViewById(R.id.output_7_name_view); } private void setupButtonViews(View v) { out0Btn = (ToggleButton) v.findViewById(R.id.output_0_button); out1Btn = (ToggleButton) v.findViewById(R.id.output_1_button); out2Btn = (ToggleButton) v.findViewById(R.id.output_2_button); out3Btn = (ToggleButton) v.findViewById(R.id.output_3_button); out4Btn = (ToggleButton) v.findViewById(R.id.output_4_button); out5Btn = (ToggleButton) v.findViewById(R.id.output_5_button); out6Btn = (ToggleButton) v.findViewById(R.id.output_6_button); out7Btn = (ToggleButton) v.findViewById(R.id.output_7_button); setupButtonEvents(); } private void setupButtonEvents() { View.OnClickListener listener = buildListener(); out0Btn.setOnClickListener(listener); out1Btn.setOnClickListener(listener); out2Btn.setOnClickListener(listener); out3Btn.setOnClickListener(listener); out4Btn.setOnClickListener(listener); out5Btn.setOnClickListener(listener); out6Btn.setOnClickListener(listener); out7Btn.setOnClickListener(listener); } private View.OnClickListener buildListener() { return new View.OnClickListener() { @Override public void onClick(View v) { boolean isChecked = ((ToggleButton) v).isChecked(); switch (v.getId()) { case R.id.output_0_button: controlOutput(0, isChecked); break; case R.id.output_1_button: controlOutput(1, isChecked); break; case R.id.output_2_button: controlOutput(2, isChecked); break; case R.id.output_3_button: controlOutput(3, isChecked); break; case R.id.output_4_button: controlOutput(4, isChecked); break; case R.id.output_5_button: controlOutput(5, isChecked); break; case R.id.output_6_button: controlOutput(6, isChecked); break; case R.id.output_7_button: controlOutput(7, isChecked); break; } } }; } private void controlOutput(int no, boolean value) { if (networkService.isNetworkAvailableAndConnected()) { Intent intent = OutputIntentService.newOutputControlIntent(getContext(), no, value); intent.putExtra(Constants.RECEIVER, outputsResultReceiver); getActivity().startService(intent); } else { if (getView() != null) Snackbar.make(getView(), getString(R.string.network_required_msg), Snackbar.LENGTH_SHORT).show(); } } private void updatedImageViews(List<Output> outputList) { out0Image.setImageDrawable(getDrawableForStatus(outputList.get(0).getOutputStatus())); out1Image.setImageDrawable(getDrawableForStatus(outputList.get(1).getOutputStatus())); out2Image.setImageDrawable(getDrawableForStatus(outputList.get(2).getOutputStatus())); out3Image.setImageDrawable(getDrawableForStatus(outputList.get(3).getOutputStatus())); out4Image.setImageDrawable(getDrawableForStatus(outputList.get(4).getOutputStatus())); out5Image.setImageDrawable(getDrawableForStatus(outputList.get(5).getOutputStatus())); out6Image.setImageDrawable(getDrawableForStatus(outputList.get(6).getOutputStatus())); out7Image.setImageDrawable(getDrawableForStatus(outputList.get(7).getOutputStatus())); } private void updatedNameViews(List<Output> outputList) { out0NameText.setText(outputList.get(0).getName()); out1NameText.setText(outputList.get(1).getName()); out2NameText.setText(outputList.get(2).getName()); out3NameText.setText(outputList.get(3).getName()); out4NameText.setText(outputList.get(4).getName()); out5NameText.setText(outputList.get(5).getName()); out6NameText.setText(outputList.get(6).getName()); out7NameText.setText(outputList.get(7).getName()); } private void updatedButtonViews(List<Output> outputList) { out0Btn.setChecked(outputList.get(0).getBoolStatus()); out1Btn.setChecked(outputList.get(1).getBoolStatus()); out2Btn.setChecked(outputList.get(2).getBoolStatus()); out3Btn.setChecked(outputList.get(3).getBoolStatus()); out4Btn.setChecked(outputList.get(4).getBoolStatus()); out5Btn.setChecked(outputList.get(5).getBoolStatus()); out6Btn.setChecked(outputList.get(6).getBoolStatus()); out7Btn.setChecked(outputList.get(7).getBoolStatus()); out0Btn.setEnabled(outputList.get(0).getOutputStatus() > -1); out1Btn.setEnabled(outputList.get(1).getOutputStatus() > -1); out2Btn.setEnabled(outputList.get(2).getOutputStatus() > -1); out3Btn.setEnabled(outputList.get(3).getOutputStatus() > -1); out4Btn.setEnabled(outputList.get(4).getOutputStatus() > -1); out5Btn.setEnabled(outputList.get(5).getOutputStatus() > -1); out6Btn.setEnabled(outputList.get(6).getOutputStatus() > -1); out7Btn.setEnabled(outputList.get(7).getOutputStatus() > -1); } private Drawable getDrawableForStatus(int status) { switch (status) { case 0: return getResources().getDrawable(R.drawable.ic_led_blue); case 1: return getResources().getDrawable(R.drawable.ic_led_red); default: return getResources().getDrawable(R.drawable.ic_led_grey); } } @SuppressLint("ParcelCreator") class OutputsResultReceiver extends ResultReceiver { OutputsResultReceiver(Handler handler) { super(handler); } @Override protected void onReceiveResult(int resultCode, Bundle resultData) { refreshLayout.setRefreshing(false); final String msg = resultData.getString(Constants.RESULT_DATA_KEY); boolean viewOk = getView() != null; if (viewOk) { updateUI(); } if (viewOk && resultCode == Constants.FAILURE_RESULT) { Snackbar.make(getView(), msg, Snackbar.LENGTH_LONG).show(); } } } class OutputsStatusRefreshRunnable implements Runnable { private int refreshInterval; OutputsStatusRefreshRunnable(int refreshInterval) { this.refreshInterval = refreshInterval; } public void run() { refreshHandler.postDelayed(this, refreshInterval); refreshFromServer(); } } }