Android Open Source - GlimmpseAndroid Power Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

/*
 * Mobile - Android, User Interface for the GLIMMPSE Software System.  Allows
 * users to perform power and sample size calculations. 
 * //from  ww  w.  ja va2  s  .  co m
 * Copyright (C) 2010 Regents of the University of Colorado.  
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package edu.ucdenver.bios.glimmpseandroid.activity.design;

import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.DisplayMetrics;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import edu.ucdenver.bios.glimmpseandroid.R;
import edu.ucdenver.bios.glimmpseandroid.activity.TabViewActivity;
import edu.ucdenver.bios.glimmpseandroid.adapter.GestureFilter;
import edu.ucdenver.bios.glimmpseandroid.adapter.GestureFilter.SimpleGestureListener;
import edu.ucdenver.bios.glimmpseandroid.adapter.PowerListAdapter;
import edu.ucdenver.bios.glimmpseandroid.application.StuyDesignContext;
import edu.ucdenver.bios.webservice.common.domain.NominalPower;

// TODO: Auto-generated Javadoc
/**
 * The Class PowerActivity deals with the 'Power' screen of the GLIMMPSE LITE
 * Application.
 * 
 * @author Uttara Sakhadeo
 * @version 1.0.0
 */
public class PowerActivity extends Activity implements OnClickListener,
        SimpleGestureListener {

    /** The power list view. */
    private ListView powerListView;

    /** The value text. */
    private static EditText valueText;

    /** The img. */
    static Drawable img;

    /** The detector. */
    private static GestureFilter detector;

    /** The global variables. */
    private static StuyDesignContext globalVariables;

    /** The resources. */
    private static Resources resources;

    /*
     * (non-Javadoc)
     * 
     * @see android.app.Activity#onCreate(android.os.Bundle)
     */
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        final Window window = getWindow();
        boolean useTitleFeature = false;
        detector = new GestureFilter(this, this);
        /*
         * If the window has a container, then we are not free to request window
         * features.
         */
        if (window.getContainer() == null) {
            useTitleFeature = window
                    .requestFeature(Window.FEATURE_CUSTOM_TITLE);
        }
        setContentView(R.layout.design_power);

        if (useTitleFeature) {
            window.setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.titlebar);
        }

        globalVariables = StuyDesignContext.getInstance();
        resources = getResources();

        DisplayMetrics metrics = resources.getDisplayMetrics();
        float density = metrics.density;
        int measurement = (int) (density * 20);

        img = resources.getDrawable(R.drawable.clear_button);
        img.setBounds(0, 0, measurement, measurement);

        TextView title = (TextView) findViewById(R.id.window_title);
        title.setText(resources.getString(R.string.title_power));

        Button homeButton = (Button) findViewById(R.id.home_button);
        homeButton.setText(resources.getString(R.string.title_design));
        homeButton.setOnClickListener(this);

        powerListPopulate();

    }

    /**
     * Clear text.
     */
    private void clearText() {
        valueText.setText("");
        valueText.requestFocusFromTouch();
    }

    /**
     * Power list populate.
     */
    private void powerListPopulate() {
        powerListView = (ListView) findViewById(R.id.power_list_view);
        View header1 = getLayoutInflater().inflate(
                R.layout.design_power_list_header, null, false);
        if (powerListView.getHeaderViewsCount() == 0)
            powerListView.addHeaderView(header1);

        valueText = (EditText) findViewById(R.id.power_value);

        valueText.addTextChangedListener(new TextWatcher() {
            public void afterTextChanged(Editable s) {

            }

            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {

            }

            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {
                String data = String.valueOf(s);
                valueText.setCompoundDrawables(null, null, img, null);
                if (data == null || data.equals("") || data.isEmpty()) {
                    valueText.setCompoundDrawables(null, null, null, null);
                }
            }
        });

        valueText.setOnTouchListener(new OnTouchListener() {

            public boolean onTouch(View arg0, MotionEvent arg1) {
                if (arg1.getX() > valueText.getWidth()
                        - img.getIntrinsicWidth() - 10) {
                    clearText();
                }
                return false;
            }

        });

        Button addButton = (Button) findViewById(R.id.power_add_button);
        addButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                addValue();

            }
        });

        Button clearAllButton = (Button) findViewById(R.id.delete_all_button);
        clearAllButton.setOnClickListener(new OnClickListener() {

            // @SuppressLint("NewApi")
            public void onClick(View v) {
                valueText = (EditText) findViewById(R.id.power_value);
                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(valueText.getWindowToken(), 0);
                powerListView.setAdapter(new PowerListAdapter(
                        PowerActivity.this, -1.0));
                clearText();
                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
            }
        });

        powerListView
                .setAdapter(new PowerListAdapter(PowerActivity.this, null));
    }

    /**
     * Adds the value.
     */
    private void addValue() {
        boolean flag = true;
        List<NominalPower> list = globalVariables.getStudyDesign()
                .getNominalPowerList();
        if (list != null && !list.isEmpty()) {
            if (list.size() == 5) {
                flag = false;
                AlertDialog.Builder builder = new AlertDialog.Builder(
                        PowerActivity.this);
                builder.setMessage(
                        resources.getString(R.string.power_values_upper_limit))
                        .setCancelable(false)
                        .setPositiveButton(resources.getString(R.string.ok),
                                new DialogInterface.OnClickListener() {
                                    public void onClick(DialogInterface dialog,
                                            int id) {

                                    }
                                });
                builder.show();
            }
        }
        if (flag) {
            valueText = (EditText) findViewById(R.id.power_value);
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(valueText.getWindowToken(), 0);
            String data = String.valueOf(valueText.getText());
            if (data != null && !data.isEmpty()) {
                if (!data.equals(".")) {
                    Double value = Double.parseDouble(data);
                    if (value < 1 && value != 0) {
                        powerListView.setAdapter(new PowerListAdapter(
                                PowerActivity.this, value));
                    } else {
                        (Toast.makeText(
                                getBaseContext(),
                                resources.getString(R.string.power_value_error),
                                Toast.LENGTH_LONG)).show();
                    }
                }
                clearText();
            }
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.app.Activity#onKeyDown(int, android.view.KeyEvent)
     */
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            addValue();
            finish();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.view.View.OnClickListener#onClick(android.view.View)
     */
    public void onClick(View v) {
        addValue();
        finish();
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.app.Activity#dispatchTouchEvent(android.view.MotionEvent)
     */
    public boolean dispatchTouchEvent(MotionEvent me) {
        detector.onTouchEvent(me);
        return super.dispatchTouchEvent(me);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * edu.ucdenver.bios.glimmpseandroid.adapter.GestureFilter.SimpleGestureListener
     * #onSwipe(int)
     */
    public void onSwipe(int direction) {
        switch (direction) {

        case GestureFilter.SWIPE_RIGHT:
            addValue();
            finish();
            break;
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * edu.ucdenver.bios.glimmpseandroid.adapter.GestureFilter.SimpleGestureListener
     * #onDoubleTap()
     */
    public void onDoubleTap() {

    }

    /*
     * (non-Javadoc)
     * 
     * @see android.app.Activity#onCreateOptionsMenu(android.view.Menu)
     */
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.home_screen_menu, menu);
        return true;
    }

    /**
     * Menu selection.
     * 
     * @param item
     *            the item
     * @return true, if successful
     */
    private boolean menuSelection(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.menu_tutorial:
            addValue();
            finish();
            Intent tabIntent = new Intent(this.getBaseContext(),
                    TabViewActivity.class);
            Bundle bundle = new Bundle();
            bundle.putInt("tab_id", 0);
            tabIntent.putExtras(bundle);
            tabIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(tabIntent);
            return true;
        case R.id.menu_start:
            addValue();
            finish();
            return true;
        case R.id.menu_aboutus:
            addValue();
            finish();
            tabIntent = new Intent(this.getBaseContext(), TabViewActivity.class);
            bundle = new Bundle();
            bundle.putInt("tab_id", 2);
            tabIntent.putExtras(bundle);
            tabIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(tabIntent);
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem)
     */
    public boolean onOptionsItemSelected(MenuItem item) { // Handle
        return menuSelection(item);
    }
}
Java Source Code List
