diff options
Diffstat (limited to 'Android/05-UserInterface/UILab/src/course')
4 files changed, 664 insertions, 0 deletions
diff --git a/Android/05-UserInterface/UILab/src/course/labs/todomanager/AddToDoActivity.java b/Android/05-UserInterface/UILab/src/course/labs/todomanager/AddToDoActivity.java new file mode 100644 index 0000000..6604871 --- /dev/null +++ b/Android/05-UserInterface/UILab/src/course/labs/todomanager/AddToDoActivity.java @@ -0,0 +1,258 @@ +package course.labs.todomanager; + +import java.util.Calendar; +import java.util.Date; + +import android.app.Activity; +import android.app.DatePickerDialog; +import android.app.Dialog; +import android.app.DialogFragment; +import android.app.TimePickerDialog; +import android.content.Intent; +import android.os.Bundle; +import android.util.Log; +import android.view.View; +import android.view.View.OnClickListener; +import android.widget.Button; +import android.widget.DatePicker; +import android.widget.EditText; +import android.widget.RadioButton; +import android.widget.RadioGroup; +import android.widget.TextView; +import android.widget.TimePicker; +import course.labs.todomanager.ToDoItem.Priority; +import course.labs.todomanager.ToDoItem.Status; + +public class AddToDoActivity extends Activity { + + // 7 days in milliseconds - 7 * 24 * 60 * 60 * 1000 + private static final int SEVEN_DAYS = 604800000; + + private static final String TAG = "Lab-UserInterface"; + + private static String timeString; + private static String dateString; + private static TextView dateView; + private static TextView timeView; + + + private Date mDate; + private RadioGroup mPriorityRadioGroup; + private RadioGroup mStatusRadioGroup; + private EditText mTitleText; + private RadioButton mDefaultStatusButton; + private RadioButton mDefaultPriorityButton; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.add_todo); + + mTitleText = (EditText) findViewById(R.id.title); + mDefaultStatusButton = (RadioButton) findViewById(R.id.statusNotDone); + mDefaultPriorityButton = (RadioButton) findViewById(R.id.medPriority); + mPriorityRadioGroup = (RadioGroup) findViewById(R.id.priorityGroup); + mStatusRadioGroup = (RadioGroup) findViewById(R.id.statusGroup); + dateView = (TextView) findViewById(R.id.date); + timeView = (TextView) findViewById(R.id.time); + + // Set the default date and time + setDefaultDateTime(); + + // OnClickListener for the Date button, calls showDatePickerDialog() to show + // the Date dialog + final Button datePickerButton = (Button) findViewById(R.id.date_picker_button); + datePickerButton.setOnClickListener(new OnClickListener() { + @Override + public void onClick(View v) { + showDatePickerDialog(); + } + }); + + // OnClickListener for the Time button, calls showTimePickerDialog() to show + // the Time Dialog + final Button timePickerButton = (Button) findViewById(R.id.time_picker_button); + timePickerButton.setOnClickListener(new OnClickListener() { + @Override + public void onClick(View v) { + showTimePickerDialog(); + } + }); + + // OnClickListener for the Cancel Button + final Button cancelButton = (Button) findViewById(R.id.cancelButton); + cancelButton.setOnClickListener(new OnClickListener() { + @Override + public void onClick(View v) { + log("Entered cancelButton.OnClickListener.onClick()"); + //TODO - Implement onClick(). + } + }); + + // OnClickListener for the Reset Button + final Button resetButton = (Button) findViewById(R.id.resetButton); + resetButton.setOnClickListener(new OnClickListener() { + @Override + public void onClick(View v) { + log("Entered resetButton.OnClickListener.onClick()"); + //TODO - Reset data fields to default values + } + }); + + // OnClickListener for the Submit Button + // Implement onClick(). + final Button submitButton = (Button) findViewById(R.id.submitButton); + submitButton.setOnClickListener(new OnClickListener() { + @Override + public void onClick(View v) { + log("Entered submitButton.OnClickListener.onClick()"); + + // Gather ToDoItem data + + //TODO - Get Priority + Priority priority = null; + + //TODO - Get Status + Status status = null; + + //TODO - Title + String titleString = null; + + // Date + String fullDate = dateString + " " + timeString; + + // Package ToDoItem data into an Intent + Intent data = new Intent(); + ToDoItem.packageIntent(data, titleString, priority, status, fullDate); + //TODO - return data Intent and finish + } + }); + } + + // Do not modify below here + // Use this method to set the default date and time + private void setDefaultDateTime() { + + // Default is current time + 7 days + mDate = new Date(); + mDate = new Date(mDate.getTime() + SEVEN_DAYS); + + Calendar c = Calendar.getInstance(); + c.setTime(mDate); + + setDateString(c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH)); + + dateView.setText(dateString); + + setTimeString(c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), c.get(Calendar.MILLISECOND)); + + timeView.setText(timeString); + } + + private static void setDateString(int year, int monthOfYear, int dayOfMonth) { + // Increment monthOfYear for Calendar/Date -> Time Format setting + monthOfYear++; + String mon = "" + monthOfYear; + String day = "" + dayOfMonth; + + if (monthOfYear < 10) + mon = "0" + monthOfYear; + if (dayOfMonth < 10) + day = "0" + dayOfMonth; + + dateString = year + "-" + mon + "-" + day; + } + + private static void setTimeString(int hourOfDay, int minute, int mili) { + String hour = "" + hourOfDay; + String min = "" + minute; + + if (hourOfDay < 10) + hour = "0" + hourOfDay; + if (minute < 10) + min = "0" + minute; + + timeString = hour + ":" + min + ":00"; + } + + private Priority getPriority() { + + switch (mPriorityRadioGroup.getCheckedRadioButtonId()) { + case R.id.lowPriority: + return Priority.LOW; + case R.id.highPriority: + return Priority.HIGH; + default: + return Priority.MED; + } + } + + private Status getStatus() { + + switch (mStatusRadioGroup.getCheckedRadioButtonId()) { + case R.id.statusDone: + return Status.DONE; + default: + return Status.NOTDONE; + } + } + + // DialogFragment used to pick a ToDoItem deadline date + public static class DatePickerFragment extends DialogFragment implements + DatePickerDialog.OnDateSetListener { + + @Override + public Dialog onCreateDialog(Bundle savedInstanceState) { + // Use the current date as the default date in the picker + final Calendar c = Calendar.getInstance(); + int year = c.get(Calendar.YEAR); + int month = c.get(Calendar.MONTH); + int day = c.get(Calendar.DAY_OF_MONTH); + // Create a new instance of DatePickerDialog and return it + return new DatePickerDialog(getActivity(), this, year, month, day); + } + + @Override + public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { + setDateString(year, monthOfYear, dayOfMonth); + dateView.setText(dateString); + } + } + + // DialogFragment used to pick a ToDoItem deadline time + public static class TimePickerFragment extends DialogFragment implements + TimePickerDialog.OnTimeSetListener { + @Override + public Dialog onCreateDialog(Bundle savedInstanceState) { + // Use the current time as the default values for the picker + final Calendar c = Calendar.getInstance(); + int hour = c.get(Calendar.HOUR_OF_DAY); + int minute = c.get(Calendar.MINUTE); + // Create a new instance of TimePickerDialog and return + return new TimePickerDialog(getActivity(), this, hour, minute, true); + } + public void onTimeSet(TimePicker view, int hourOfDay, int minute) { + setTimeString(hourOfDay, minute, 0); + timeView.setText(timeString); + } + } + + private void showDatePickerDialog() { + DialogFragment newFragment = new DatePickerFragment(); + newFragment.show(getFragmentManager(), "datePicker"); + } + + private void showTimePickerDialog() { + DialogFragment newFragment = new TimePickerFragment(); + newFragment.show(getFragmentManager(), "timePicker"); + } + + private void log(String msg) { + try { + Thread.sleep(500); + } catch (InterruptedException e) { + e.printStackTrace(); + } + Log.i(TAG, msg); + } +} diff --git a/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoItem.java b/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoItem.java new file mode 100644 index 0000000..7990eb7 --- /dev/null +++ b/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoItem.java @@ -0,0 +1,107 @@ +package course.labs.todomanager; + +import java.text.ParseException; +import java.text.SimpleDateFormat; +import java.util.Date; +import java.util.Locale; + +import android.content.Intent; + +// Do not modify + +public class ToDoItem { + + public static final String ITEM_SEP = System.getProperty("line.separator"); + + public enum Priority { + LOW, MED, HIGH + }; + + public enum Status { + NOTDONE, DONE + }; + + public final static String TITLE = "title"; + public final static String PRIORITY = "priority"; + public final static String STATUS = "status"; + public final static String DATE = "date"; + public final static String FILENAME = "filename"; + + public final static SimpleDateFormat FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.US); + + private String mTitle = new String(); + private Priority mPriority = Priority.LOW; + private Status mStatus = Status.NOTDONE; + private Date mDate = new Date(); + + ToDoItem(String title, Priority priority, Status status, Date date) { + this.mTitle = title; + this.mPriority = priority; + this.mStatus = status; + this.mDate = date; + } + + // Create a new ToDoItem from data packaged in an Intent + ToDoItem(Intent intent) { + mTitle = intent.getStringExtra(ToDoItem.TITLE); + mPriority = Priority.valueOf(intent.getStringExtra(ToDoItem.PRIORITY)); + mStatus = Status.valueOf(intent.getStringExtra(ToDoItem.STATUS)); + try { + mDate = ToDoItem.FORMAT.parse(intent.getStringExtra(ToDoItem.DATE)); + } catch (ParseException e) { + mDate = new Date(); + } + } + + public String getTitle() { + return mTitle; + } + + public void setTitle(String title) { + mTitle = title; + } + + public Priority getPriority() { + return mPriority; + } + + public void setPriority(Priority priority) { + mPriority = priority; + } + + public Status getStatus() { + return mStatus; + } + + public void setStatus(Status status) { + mStatus = status; + } + + public Date getDate() { + return mDate; + } + + public void setDate(Date date) { + mDate = date; + } + + // Take a set of String data values and + // package them for transport in an Intent + public static void packageIntent(Intent intent, String title, Priority priority, Status status, String date) { + + intent.putExtra(ToDoItem.TITLE, title); + intent.putExtra(ToDoItem.PRIORITY, priority.toString()); + intent.putExtra(ToDoItem.STATUS, status.toString()); + intent.putExtra(ToDoItem.DATE, date); + } + + public String toString() { + return mTitle + ITEM_SEP + mPriority + ITEM_SEP + mStatus + ITEM_SEP + FORMAT.format(mDate); + } + + public String toLog() { + return "Title:" + mTitle + ITEM_SEP + "Priority:" + mPriority + + ITEM_SEP + "Status:" + mStatus + ITEM_SEP + "Date:" + + FORMAT.format(mDate); + } +} diff --git a/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoListAdapter.java b/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoListAdapter.java new file mode 100644 index 0000000..5f16ac8 --- /dev/null +++ b/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoListAdapter.java @@ -0,0 +1,114 @@ +package course.labs.todomanager; + +import java.util.ArrayList; +import java.util.List; + +import android.content.Context; +import android.util.Log; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.BaseAdapter; +import android.widget.CheckBox; +import android.widget.CompoundButton; +import android.widget.CompoundButton.OnCheckedChangeListener; +import android.widget.RelativeLayout; +import android.widget.TextView; +import course.labs.todomanager.ToDoItem.Status; + +public class ToDoListAdapter extends BaseAdapter { + + // List of ToDoItems + private final List<ToDoItem> mItems = new ArrayList<ToDoItem>(); + + private final Context mContext; + + private static final String TAG = "Lab-UserInterface"; + + public ToDoListAdapter(Context context) { + mContext = context; + } + + // Add a ToDoItem to the adapter + // Notify observers that the data set has changed + public void add(ToDoItem item) { + mItems.add(item); + notifyDataSetChanged(); + } + + // Clears the list adapter of all items. + public void clear(){ + mItems.clear(); + notifyDataSetChanged(); + } + + // Returns the number of ToDoItems + @Override + public int getCount() { + return mItems.size(); + } + + // Retrieve the number of ToDoItems + @Override + public Object getItem(int pos) { + return mItems.get(pos); + } + + // Get the ID for the ToDoItem + // In this case it's just the position + @Override + public long getItemId(int pos) { + return pos; + } + + //Create a View to display the ToDoItem + // at specified position in mItems + @Override + public View getView(int position, View convertView, ViewGroup parent) { + //TODO - Get the current ToDoItem + final ToDoItem toDoItem = null; + + //TODO - Inflate the View for this ToDoItem + // from todo_item.xml. + RelativeLayout itemLayout = null; + + //TODO - Fill in specific ToDoItem data + // Remember that the data that goes in this View + // corresponds to the user interface elements defined + // in the layout file + + //TODO - Display Title in TextView + final TextView titleView = null; + + // TODO - Set up Status CheckBox + final CheckBox statusView = null; + + statusView.setOnCheckedChangeListener(new OnCheckedChangeListener() { + @Override + public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { + log("Entered onCheckedChanged()"); + // TODO - Set up and implement an OnCheckedChangeListener, which + // is called when the user toggles the status checkbox + } + }); + + //TODO - Display Priority in a TextView + final TextView priorityView = null; + + // TODO - Display Time and Date. + // Hint - use ToDoItem.FORMAT.format(toDoItem.getDate()) to get date and time String + final TextView dateView = null; + + // Return the View you just created + return itemLayout; + } + + private void log(String msg) { + try { + Thread.sleep(500); + } catch (InterruptedException e) { + e.printStackTrace(); + } + Log.i(TAG, msg); + } +} diff --git a/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoManagerActivity.java b/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoManagerActivity.java new file mode 100644 index 0000000..fe8d9eb --- /dev/null +++ b/Android/05-UserInterface/UILab/src/course/labs/todomanager/ToDoManagerActivity.java @@ -0,0 +1,185 @@ +package course.labs.todomanager; + +import java.io.BufferedReader; +import java.io.BufferedWriter; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStreamReader; +import java.io.OutputStreamWriter; +import java.io.PrintWriter; +import java.text.ParseException; +import java.util.Date; + +import android.app.ListActivity; +import android.content.Intent; +import android.os.Bundle; +import android.util.Log; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuItem; +import android.view.View; +import android.view.View.OnClickListener; +import android.widget.TextView; +import course.labs.todomanager.ToDoItem.Priority; +import course.labs.todomanager.ToDoItem.Status; + +public class ToDoManagerActivity extends ListActivity { + + // Add a ToDoItem Request Code + private static final int ADD_TODO_ITEM_REQUEST = 0; + + private static final String FILE_NAME = "TodoManagerActivityData.txt"; + private static final String TAG = "Lab-UserInterface"; + + // IDs for menu items + private static final int MENU_DELETE = Menu.FIRST; + private static final int MENU_DUMP = Menu.FIRST + 1; + + ToDoListAdapter mAdapter; + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + // Create a new TodoListAdapter for this ListActivity's ListView + mAdapter = new ToDoListAdapter(getApplicationContext()); + + // Put divider between ToDoItems and FooterView + getListView().setFooterDividersEnabled(true); + + //TODO - Inflate footerView for footer_view.xml file + TextView footerView = null; + //TODO - Add footerView to ListView + + footerView.setOnClickListener(new OnClickListener() { + @Override + public void onClick(View v) { + log("Entered footerView.OnClickListener.onClick()"); + //TODO - Attach Listener to FooterView. Implement onClick(). + } + }); + + //TODO - Attach the adapter to this ListActivity's ListView + } + + @Override + protected void onActivityResult(int requestCode, int resultCode, Intent data) { + log("Entered onActivityResult()"); + + // TODO - Check result code and request code. + // If user submitted a new ToDoItem + // Create a new ToDoItem from the data Intent + // and then add it to the adapter + } + + // Do not modify below here + @Override + public void onResume() { + super.onResume(); + // Load saved ToDoItems, if necessary + if (mAdapter.getCount() == 0) + loadItems(); + } + + @Override + protected void onPause() { + super.onPause(); + // Save ToDoItems + saveItems(); + } + + @Override + public boolean onCreateOptionsMenu(Menu menu) { + super.onCreateOptionsMenu(menu); + menu.add(Menu.NONE, MENU_DELETE, Menu.NONE, "Delete all"); + menu.add(Menu.NONE, MENU_DUMP, Menu.NONE, "Dump to log"); + return true; + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case MENU_DELETE: + mAdapter.clear(); + return true; + case MENU_DUMP: + dump(); + return true; + default: + return super.onOptionsItemSelected(item); + } + } + + private void dump() { + for (int i = 0; i < mAdapter.getCount(); i++) { + String data = ((ToDoItem) mAdapter.getItem(i)).toLog(); + log("Item " + i + ": " + data.replace(ToDoItem.ITEM_SEP, ",")); + } + } + + // Load stored ToDoItems + private void loadItems() { + BufferedReader reader = null; + try { + FileInputStream fis = openFileInput(FILE_NAME); + reader = new BufferedReader(new InputStreamReader(fis)); + + String title = null; + String priority = null; + String status = null; + Date date = null; + + while (null != (title = reader.readLine())) { + priority = reader.readLine(); + status = reader.readLine(); + date = ToDoItem.FORMAT.parse(reader.readLine()); + mAdapter.add(new ToDoItem(title, Priority.valueOf(priority), + Status.valueOf(status), date)); + } + + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } catch (ParseException e) { + e.printStackTrace(); + } finally { + if (null != reader) { + try { + reader.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + } + } + + // Save ToDoItems to file + private void saveItems() { + PrintWriter writer = null; + try { + FileOutputStream fos = openFileOutput(FILE_NAME, MODE_PRIVATE); + writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter( fos))); + for (int idx = 0; idx < mAdapter.getCount(); idx++) { + writer.println(mAdapter.getItem(idx)); + } + } catch (IOException e) { + e.printStackTrace(); + } finally { + if (null != writer) { + writer.close(); + } + } + } + + private void log(String msg) { + try { + Thread.sleep(500); + } catch (InterruptedException e) { + e.printStackTrace(); + } + Log.i(TAG, msg); + } +} |