Java tutorial
/* * This file is part of Domodroid. * * Domodroid is Copyright (C) 2011 Pierre LAINE, Maxime CHOFARDET * * Domodroid is free software: you can redistribute it and/or modify it under the * terms of the GNU General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later * version. * * Domodroid 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along with * Domodroid. If not, see <http://www.gnu.org/licenses/>. */ package widgets; import java.util.ArrayList; import java.util.List; import rinor.Rest_com; import widgets.Graphical_Binary.SBAnim; import database.DmdContentProvider; import database.JSONParser; import database.WidgetUpdate; import org.json.JSONException; import org.json.JSONObject; import activities.Gradients_Manager; import activities.Graphics_Manager; import org.domogik.domodroid13.R; import android.app.Activity; import android.app.AlertDialog; import android.content.ContentValues; import android.content.DialogInterface; import android.content.SharedPreferences; import android.graphics.Color; import android.graphics.Typeface; import android.os.AsyncTask; import android.os.Handler; import android.os.Message; import misc.List_Icon_Adapter; import misc.tracerengine; import android.view.Gravity; import android.view.View; import android.view.View.OnLongClickListener; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; public class Graphical_Range extends Basic_Graphical_widget implements SeekBar.OnSeekBarChangeListener { private FrameLayout rightPan; private LinearLayout bodyPanHorizontal; private LinearLayout leftPan; private TextView state; private SeekBar seekBarVaria; private String address; private int state_progress; private String usage; private String url; private final int dev_id; private int id; private Handler handler; private final String state_key; private int range; private int scale; private int valueMin; private int valueMax; private int CustomMax; private String type; private String command; public static int stateThread; private int update; public boolean activate = false; private Animation animation; private boolean touching; private int updating = 0; private final String wname; private String place_type; private int place_id; public static FrameLayout container = null; public static FrameLayout myself = null; private static String mytag; private tracerengine Tracer = null; private Message msg; private Entity_client session = null; private Boolean realtime = false; private int session_type; private String stateS = ""; private String login; private String password; private SharedPreferences params; private String test_unite; private Activity context; public Graphical_Range(tracerengine Trac, Activity context, String address, String name, int id, int dev_id, String state_key, String url, String usage, String parameters, String model_id, int update, int widgetSize, int session_type, int place_id, String place_type, SharedPreferences params) throws JSONException { super(context, Trac, id, name, "", usage, widgetSize, session_type, place_id, place_type, mytag, container); this.Tracer = Trac; this.address = address; this.url = url; this.dev_id = dev_id; this.id = id; this.state_key = state_key; this.usage = usage; this.update = update; this.wname = name; this.myself = this; this.session_type = session_type; this.place_id = place_id; this.place_type = place_type; this.context = context; stateThread = 1; this.stateS = getResources().getText(R.string.State).toString(); mytag = "Graphical_Range(" + dev_id + ")"; this.params = params; login = params.getString("http_auth_username", null); password = params.getString("http_auth_password", null); //get parameters JSONObject jparam = new JSONObject(parameters.replaceAll(""", "\"")); command = jparam.getString("command"); valueMin = jparam.getInt("valueMin"); valueMax = jparam.getInt("valueMax"); range = valueMax - valueMin; scale = 100 / range; try { test_unite = jparam.getString("unit"); } catch (JSONException e) { test_unite = "%"; } if (test_unite == null || test_unite.length() == 0) { test_unite = "%"; } String[] model = model_id.split("\\."); type = model[0]; //linearlayout horizontal body bodyPanHorizontal = new LinearLayout(context); bodyPanHorizontal.setLayoutParams( new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT, Gravity.CENTER_VERTICAL)); bodyPanHorizontal.setOrientation(LinearLayout.HORIZONTAL); //right panel with different info and seekbars rightPan = new FrameLayout(context); rightPan.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); rightPan.setPadding(0, 0, 10, 0); // panel leftPan = new LinearLayout(context); leftPan.setLayoutParams( new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT, Gravity.BOTTOM)); leftPan.setOrientation(LinearLayout.VERTICAL); leftPan.setGravity(Gravity.CENTER_VERTICAL); leftPan.setPadding(4, 5, 0, 0); state = new TextView(context); state.setTextColor(Color.BLACK); state.setPadding(20, 0, 0, 0); animation = new AlphaAnimation(0.0f, 1.0f); animation.setDuration(1000); //first seekbar variator seekBarVaria = new SeekBar(context); seekBarVaria.setProgress(0); seekBarVaria.setMax(valueMax - valueMin); seekBarVaria.setLayoutParams( new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT, Gravity.CENTER_HORIZONTAL)); seekBarVaria.setProgressDrawable(getResources().getDrawable(R.drawable.bgseekbarvaria)); seekBarVaria.setThumb(getResources().getDrawable(R.drawable.buttonseekbar)); seekBarVaria.setThumbOffset(-3); seekBarVaria.setOnSeekBarChangeListener(this); seekBarVaria.setPadding(0, 0, 15, 7); leftPan.addView(state); leftPan.addView(seekBarVaria); rightPan.addView(leftPan); bodyPanHorizontal.addView(rightPan); super.LL_topPan.removeView(super.LL_featurePan); super.LL_infoPan.addView(bodyPanHorizontal); handler = new Handler() { @Override public void handleMessage(Message msg) { /// Deprecated method to die ///////////////////////////////////////// if (activate) { Tracer.d(mytag, "Handler receives a request to die "); //That seems to be a zombie removeView(LL_background); myself.setVisibility(GONE); if (container != null) { container.removeView(myself); container.recomputeViewAttributes(myself); } try { finalize(); } catch (Throwable t) { } //kill the handler thread itself /////////////////////////////////////////////////////////////////// } else { int new_val = 0; if (msg.what == 9999) { //state_engine send us a signal to notify value changed if (session == null) return; try { Tracer.d(mytag, "Handler receives a new value from cache_engine <" + session.getValue() + ">"); new_val = Integer.parseInt(session.getValue()); } catch (Exception e) { new_val = 0; } //#1649 //Value min and max should be the limit of the widget if (new_val <= valueMin) { state.setText(stateS + valueMin + " " + test_unite); } else if (new_val > valueMin && new_val < valueMax) { state.setText(stateS + new_val + " " + test_unite); } else if (new_val >= valueMax) { state.setText(stateS + valueMax + " " + test_unite); } state.setAnimation(animation); new SBAnim(seekBarVaria.getProgress(), new_val - valueMin).execute(); } else if (msg.what == 9998) { // state_engine send us a signal to notify it'll die ! Tracer.d(mytag, "state engine disappeared ===> Harakiri !"); session = null; realtime = false; removeView(LL_background); myself.setVisibility(GONE); if (container != null) { container.removeView(myself); container.recomputeViewAttributes(myself); } try { finalize(); } catch (Throwable t) { } //kill the handler thread itself } } } }; //================================================================================ /* * New mechanism to be notified by widgetupdate engine when our value is changed * */ WidgetUpdate cache_engine = WidgetUpdate.getInstance(); if (cache_engine != null) { session = new Entity_client(dev_id, state_key, mytag, handler, session_type); if (Tracer.get_engine().subscribe(session)) { realtime = true; //we're connected to engine //each time our value change, the engine will call handler handler.sendEmptyMessage(9999); //Force to consider current value in session } } //================================================================================ } public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) { //#1649 //Value min and max should be the limit of the widget int realprogress = (progress + valueMin); if (realprogress <= valueMin) { state.setText(stateS + valueMin + " " + test_unite); IV_img.setBackgroundResource(Graphics_Manager.Icones_Agent(usage, 0)); } else if (realprogress > valueMin && realprogress < valueMax) { state.setText(stateS + realprogress + " " + test_unite); IV_img.setBackgroundResource(Graphics_Manager.Icones_Agent(usage, 1)); } else if (realprogress >= valueMax) { state.setText(stateS + valueMax + " " + test_unite); IV_img.setBackgroundResource(Graphics_Manager.Icones_Agent(usage, 2)); } } public void onStartTrackingTouch(SeekBar arg0) { touching = true; updating = 3; } public void onStopTrackingTouch(SeekBar arg0) { //send the correct value by replacing it with a converted one. state_progress = (int) (arg0.getProgress() + valueMin); new CommandeThread().execute(); touching = false; } public class CommandeThread extends AsyncTask<Void, Integer, Void> { @Override protected Void doInBackground(Void... params) { updating = 3; JSONObject json_Ack = null; try { json_Ack = Rest_com.connect( url + "command/" + type + "/" + address + "/" + command + "/" + state_progress, login, password); } catch (Exception e) { Tracer.e(mytag, "Rest exception getting state : <" + e.getMessage() + ">"); } try { @SuppressWarnings("unused") Boolean ack = JSONParser.Ack(json_Ack); } catch (Exception e) { e.printStackTrace(); } return null; } } public class SBAnim extends AsyncTask<Void, Integer, Void> { private int begin; private int end; public SBAnim(int begin, int end) { this.begin = begin; this.end = end; } @Override protected Void doInBackground(Void... params) { final int steps = java.lang.Math.abs(end - begin); new Thread(new Runnable() { public synchronized void run() { for (int i = 0; i <= steps; i++) { try { this.wait(7 * scale); if (!touching) { if (end - begin > 0) seekBarVaria.setProgress(begin + i); else seekBarVaria.setProgress(begin - i); } } catch (InterruptedException e) { e.printStackTrace(); } } } }).start(); return null; } } @Override protected void onWindowVisibilityChanged(int visibility) { if (visibility == 0) { //activate=true; } } }