diff --git a/AlarmAlertActivity.java b/AlarmAlertActivity.java deleted file mode 100644 index 85723be..0000000 --- a/AlarmAlertActivity.java +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) - * - * 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 net.micode.notes.ui; - -import android.app.Activity; -import android.app.AlertDialog; -import android.content.Context; -import android.content.DialogInterface; -import android.content.DialogInterface.OnClickListener; -import android.content.DialogInterface.OnDismissListener; -import android.content.Intent; -import android.media.AudioManager; -import android.media.MediaPlayer; -import android.media.RingtoneManager; -import android.net.Uri; -import android.os.Bundle; -import android.os.PowerManager; -import android.provider.Settings; -import android.view.Window; -import android.view.WindowManager; - -import net.micode.notes.R; -import net.micode.notes.data.Notes; -import net.micode.notes.tool.DataUtils; - -import java.io.IOException; - - -public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { - private long mNoteId; - private String mSnippet; - private static final int SNIPPET_PREW_MAX_LEN = 60; - MediaPlayer mPlayer; - - @Override - protected void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); - requestWindowFeature(Window.FEATURE_NO_TITLE); - - final Window win = getWindow(); - win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); - - if (!isScreenOn()) { - win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON - | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON - | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON - | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); - } - - Intent intent = getIntent(); - - try { - mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); - mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); - mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, - SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) - : mSnippet; - } catch (IllegalArgumentException e) { - e.printStackTrace(); - return; - } - - mPlayer = new MediaPlayer(); - if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { - showActionDialog(); - playAlarmSound(); - } else { - finish(); - } - } - - private boolean isScreenOn() { - PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); - return pm.isScreenOn(); - } - - private void playAlarmSound() { - Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); - - int silentModeStreams = Settings.System.getInt(getContentResolver(), - Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); - - if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { - mPlayer.setAudioStreamType(silentModeStreams); - } else { - mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); - } - try { - mPlayer.setDataSource(this, url); - mPlayer.prepare(); - mPlayer.setLooping(true); - mPlayer.start(); - } catch (IllegalArgumentException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } catch (SecurityException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } catch (IllegalStateException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } catch (IOException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } - } - - private void showActionDialog() { - AlertDialog.Builder dialog = new AlertDialog.Builder(this); - dialog.setTitle(R.string.app_name); - dialog.setMessage(mSnippet); - dialog.setPositiveButton(R.string.notealert_ok, this); - if (isScreenOn()) { - dialog.setNegativeButton(R.string.notealert_enter, this); - } - dialog.show().setOnDismissListener(this); - } - - public void onClick(DialogInterface dialog, int which) { - switch (which) { - case DialogInterface.BUTTON_NEGATIVE: - Intent intent = new Intent(this, NoteEditActivity.class); - intent.setAction(Intent.ACTION_VIEW); - intent.putExtra(Intent.EXTRA_UID, mNoteId); - startActivity(intent); - break; - default: - break; - } - } - - public void onDismiss(DialogInterface dialog) { - stopAlarmSound(); - finish(); - } - - private void stopAlarmSound() { - if (mPlayer != null) { - mPlayer.stop(); - mPlayer.release(); - mPlayer = null; - } - } -} diff --git a/AlarmInitReceiver.java b/AlarmInitReceiver.java deleted file mode 100644 index f221202..0000000 --- a/AlarmInitReceiver.java +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) - * - * 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 net.micode.notes.ui; - -import android.app.AlarmManager; -import android.app.PendingIntent; -import android.content.BroadcastReceiver; -import android.content.ContentUris; -import android.content.Context; -import android.content.Intent; -import android.database.Cursor; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.NoteColumns; - - -public class AlarmInitReceiver extends BroadcastReceiver { - - private static final String [] PROJECTION = new String [] { - NoteColumns.ID, - NoteColumns.ALERTED_DATE - }; - - private static final int COLUMN_ID = 0; - private static final int COLUMN_ALERTED_DATE = 1; - - @Override - public void onReceive(Context context, Intent intent) { - long currentDate = System.currentTimeMillis(); - Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, - PROJECTION, - NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, - new String[] { String.valueOf(currentDate) }, - null); - - if (c != null) { - if (c.moveToFirst()) { - do { - long alertDate = c.getLong(COLUMN_ALERTED_DATE); - Intent sender = new Intent(context, AlarmReceiver.class); - sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); - PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); - AlarmManager alermManager = (AlarmManager) context - .getSystemService(Context.ALARM_SERVICE); - alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); - } while (c.moveToNext()); - } - c.close(); - } - } -} diff --git a/AlarmReceiver.java b/AlarmReceiver.java deleted file mode 100644 index f35ed7b..0000000 --- a/AlarmReceiver.java +++ /dev/null @@ -1,20 +0,0 @@ -package net.micode.notes.ui; - -import android.content.BroadcastReceiver; -import android.content.Context; -import android.content.Intent; - -public class AlarmReceiver extends BroadcastReceiver { - @Override - public void onReceive(Context context, Intent intent) { - intent.setClass(context, AlarmAlertActivity.class); - //启动AlarmAlertActivity - intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); - //activity要存在于activity的栈中，而非activity的途径启动activity时必然不存在一个activity的栈 - //所以要新起一个栈装入启动的activity - context.startActivity(intent); - } -} -//这是实现alarm这个功能最接近用户层的包，基于上面的两个包， -//作用还需要深究但是对于setClass和addFlags的 - \ No newline at end of file diff --git a/DateTimePicker.java b/DateTimePicker.java deleted file mode 100644 index c7fbbcd..0000000 --- a/DateTimePicker.java +++ /dev/null @@ -1,491 +0,0 @@ -package net.micode.notes.ui; - -import java.text.DateFormatSymbols; -import java.util.Calendar; - -import net.micode.notes.R; - - -import android.content.Context; -import android.text.format.DateFormat; -import android.view.View; -import android.widget.FrameLayout; -import android.widget.NumberPicker; - -public class DateTimePicker extends FrameLayout { - //FrameLayout是布局模板之一 - //所有的子元素全部在屏幕的右上方 - private static final boolean DEFAULT_ENABLE_STATE = true; - - private static final int HOURS_IN_HALF_DAY = 12; - private static final int HOURS_IN_ALL_DAY = 24; - private static final int DAYS_IN_ALL_WEEK = 7; - private static final int DATE_SPINNER_MIN_VAL = 0; - private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1; - private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0; - private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23; - private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1; - private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12; - private static final int MINUT_SPINNER_MIN_VAL = 0; - private static final int MINUT_SPINNER_MAX_VAL = 59; - private static final int AMPM_SPINNER_MIN_VAL = 0; - private static final int AMPM_SPINNER_MAX_VAL = 1; - //初始化控件 - private final NumberPicker mDateSpinner; - private final NumberPicker mHourSpinner; - private final NumberPicker mMinuteSpinner; - private final NumberPicker mAmPmSpinner; - //NumberPicker是数字选择器 - //这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午） - private Calendar mDate; - //定义了Calendar类型的变量mDate，用于操作时间 - private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; - - private boolean mIsAm; - - private boolean mIs24HourView; - - private boolean mIsEnabled = DEFAULT_ENABLE_STATE; - - private boolean mInitialising; - - private OnDateTimeChangedListener mOnDateTimeChangedListener; - - private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { - @Override - public void onValueChange(NumberPicker picker, int oldVal, int newVal) { - mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); - updateDateControl(); - onDateTimeChanged(); - } - };//OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听 - //将现在日期的值传递给mDate；updateDateControl是同步操作 - - private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { - //这里是对 小时（Hour） 的监听 - @Override - public void onValueChange(NumberPicker picker, int oldVal, int newVal) { - boolean isDateChanged = false; - Calendar cal = Calendar.getInstance(); - //声明一个Calendar的变量cal，便于后续的操作 - if (!mIs24HourView) { - if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) { - cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, 1); - isDateChanged = true; - //这里是对于12小时制时，晚上11点和12点交替时对日期的更改 - } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { - cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, -1); - isDateChanged = true; - } - //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改 - if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY || - oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { - mIsAm = !mIsAm; - updateAmPmControl(); - }//这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改 - } else { - if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { - cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, 1); - isDateChanged = true; - //这里是对于24小时制时，晚上11点和12点交替时对日期的更改 - } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { - cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, -1); - isDateChanged = true; - } - } //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改 - int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); - //通过数字选择器对newHour的赋值 - mDate.set(Calendar.HOUR_OF_DAY, newHour); - //通过set函数将新的Hour值传给mDate - onDateTimeChanged(); - if (isDateChanged) { - setCurrentYear(cal.get(Calendar.YEAR)); - setCurrentMonth(cal.get(Calendar.MONTH)); - setCurrentDay(cal.get(Calendar.DAY_OF_MONTH)); - } - } - }; - - private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { - @Override - //这里是对 分钟（Minute）改变的监听 - public void onValueChange(NumberPicker picker, int oldVal, int newVal) { - int minValue = mMinuteSpinner.getMinValue(); - int maxValue = mMinuteSpinner.getMaxValue(); - int offset = 0; - //设置offset，作为小时改变的一个记录数据 - if (oldVal == maxValue && newVal == minValue) { - offset += 1; - } else if (oldVal == minValue && newVal == maxValue) { - offset -= 1; - } - //如果原值为59，新值为0，则offset加1 - //如果原值为0，新值为59，则offset减1 - if (offset != 0) { - mDate.add(Calendar.HOUR_OF_DAY, offset); - mHourSpinner.setValue(getCurrentHour()); - updateDateControl(); - int newHour = getCurrentHourOfDay(); - if (newHour >= HOURS_IN_HALF_DAY) { - mIsAm = false; - updateAmPmControl(); - } else { - mIsAm = true; - updateAmPmControl(); - } - } - mDate.set(Calendar.MINUTE, newVal); - onDateTimeChanged(); - } - }; - - private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { - //对AM和PM的监听 - @Override - public void onValueChange(NumberPicker picker, int oldVal, int newVal) { - mIsAm = !mIsAm; - if (mIsAm) { - mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY); - } else { - mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY); - } - updateAmPmControl(); - onDateTimeChanged(); - } - }; - - public interface OnDateTimeChangedListener { - void onDateTimeChanged(DateTimePicker view, int year, int month, - int dayOfMonth, int hourOfDay, int minute); - } - - public DateTimePicker(Context context) { - this(context, System.currentTimeMillis()); - }//通过对数据库的访问，获取当前的系统时间 - - public DateTimePicker(Context context, long date) { - this(context, date, DateFormat.is24HourFormat(context)); - }//上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义 - - public DateTimePicker(Context context, long date, boolean is24HourView) { - super(context); - //获取系统时间 - mDate = Calendar.getInstance(); - mInitialising = true; - mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; - inflate(context, R.layout.datetime_picker, this); - //如果当前Activity里用到别的layout，比如对话框layout - //还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来 - //然后再用findViewById()找到它上面的其它组件 - mDateSpinner = (NumberPicker) findViewById(R.id.date); - mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); - mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); - mDateSpinner.setOnValueChangedListener(mOnDateChangedListener); - - mHourSpinner = (NumberPicker) findViewById(R.id.hour); - mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); - mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); - mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); - mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); - mMinuteSpinner.setOnLongPressUpdateInterval(100); - mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); - - String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); - mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); - mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); - mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL); - mAmPmSpinner.setDisplayedValues(stringsForAmPm); - mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); - - // update controls to initial state - updateDateControl(); - updateHourControl(); - updateAmPmControl(); - - set24HourView(is24HourView); - - // set to current time - setCurrentDate(date); - - setEnabled(isEnabled()); - - // set the content descriptions - mInitialising = false; - } - - @Override - public void setEnabled(boolean enabled) { - if (mIsEnabled == enabled) { - return; - } - super.setEnabled(enabled); - mDateSpinner.setEnabled(enabled); - mMinuteSpinner.setEnabled(enabled); - mHourSpinner.setEnabled(enabled); - mAmPmSpinner.setEnabled(enabled); - mIsEnabled = enabled; - } - //存在疑问！！！！！！！！！！！！！setEnabled的作用 - //下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断 - //下面的各函数主要是对上面代码引用到的各函数功能的实现 - @Override - public boolean isEnabled() { - return mIsEnabled; - } - - /** - * Get the current date in millis - * - * @return the current date in millis - */ - public long getCurrentDateInTimeMillis() { - return mDate.getTimeInMillis(); - }//实现函数——得到当前的秒数 - - /** - * Set the current date - * - * @param date The current date in millis - */ - public void setCurrentDate(long date) { - Calendar cal = Calendar.getInstance(); - cal.setTimeInMillis(date); - setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), - cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)); - }//实现函数功能——设置当前的时间，参数是date - - /** - * Set the current date - * - * @param year The current year - * @param month The current month - * @param dayOfMonth The current dayOfMonth - * @param hourOfDay The current hourOfDay - * @param minute The current minute - */ - public void setCurrentDate(int year, int month, - int dayOfMonth, int hourOfDay, int minute) { - setCurrentYear(year); - setCurrentMonth(month); - setCurrentDay(dayOfMonth); - setCurrentHour(hourOfDay); - setCurrentMinute(minute); - }//实现函数功能——设置当前的时间，参数是各详细的变量 - - /** - * Get current year - * - * @return The current year - */ - //下面是得到year、month、day等值 - public int getCurrentYear() { - return mDate.get(Calendar.YEAR); - } - - /** - * Set current year - * - * @param year The current year - */ - public void setCurrentYear(int year) { - if (!mInitialising && year == getCurrentYear()) { - return; - } - mDate.set(Calendar.YEAR, year); - updateDateControl(); - onDateTimeChanged(); - } - - /** - * Get current month in the year - * - * @return The current month in the year - */ - public int getCurrentMonth() { - return mDate.get(Calendar.MONTH); - } - - /** - * Set current month in the year - * - * @param month The month in the year - */ - public void setCurrentMonth(int month) { - if (!mInitialising && month == getCurrentMonth()) { - return; - } - mDate.set(Calendar.MONTH, month); - updateDateControl(); - onDateTimeChanged(); - } - - /** - * Get current day of the month - * - * @return The day of the month - */ - public int getCurrentDay() { - return mDate.get(Calendar.DAY_OF_MONTH); - } - - /** - * Set current day of the month - * - * @param dayOfMonth The day of the month - */ - public void setCurrentDay(int dayOfMonth) { - if (!mInitialising && dayOfMonth == getCurrentDay()) { - return; - } - mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); - updateDateControl(); - onDateTimeChanged(); - } - - /** - * Get current hour in 24 hour mode, in the range (0~23) - * @return The current hour in 24 hour mode - */ - public int getCurrentHourOfDay() { - return mDate.get(Calendar.HOUR_OF_DAY); - } - - private int getCurrentHour() { - if (mIs24HourView){ - return getCurrentHourOfDay(); - } else { - int hour = getCurrentHourOfDay(); - if (hour > HOURS_IN_HALF_DAY) { - return hour - HOURS_IN_HALF_DAY; - } else { - return hour == 0 ? HOURS_IN_HALF_DAY : hour; - } - } - } - - /** - * Set current hour in 24 hour mode, in the range (0~23) - * - * @param hourOfDay - */ - public void setCurrentHour(int hourOfDay) { - if (!mInitialising && hourOfDay == getCurrentHourOfDay()) { - return; - } - mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); - if (!mIs24HourView) { - if (hourOfDay >= HOURS_IN_HALF_DAY) { - mIsAm = false; - if (hourOfDay > HOURS_IN_HALF_DAY) { - hourOfDay -= HOURS_IN_HALF_DAY; - } - } else { - mIsAm = true; - if (hourOfDay == 0) { - hourOfDay = HOURS_IN_HALF_DAY; - } - } - updateAmPmControl(); - } - mHourSpinner.setValue(hourOfDay); - onDateTimeChanged(); - } - - /** - * Get currentMinute - * - * @return The Current Minute - */ - public int getCurrentMinute() { - return mDate.get(Calendar.MINUTE); - } - - /** - * Set current minute - */ - public void setCurrentMinute(int minute) { - if (!mInitialising && minute == getCurrentMinute()) { - return; - } - mMinuteSpinner.setValue(minute); - mDate.set(Calendar.MINUTE, minute); - onDateTimeChanged(); - } - - /** - * @return true if this is in 24 hour view else false. - */ - public boolean is24HourView () { - return mIs24HourView; - } - - /** - * Set whether in 24 hour or AM/PM mode. - * - * @param is24HourView True for 24 hour mode. False for AM/PM mode. - */ - public void set24HourView(boolean is24HourView) { - if (mIs24HourView == is24HourView) { - return; - } - mIs24HourView = is24HourView; - mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE); - int hour = getCurrentHourOfDay(); - updateHourControl(); - setCurrentHour(hour); - updateAmPmControl(); - } - - private void updateDateControl() { - Calendar cal = Calendar.getInstance(); - cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1); - mDateSpinner.setDisplayedValues(null); - for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) { - cal.add(Calendar.DAY_OF_YEAR, 1); - mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal); - } - mDateSpinner.setDisplayedValues(mDateDisplayValues); - mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2); - mDateSpinner.invalidate(); - }// 对于星期几的算法 - - private void updateAmPmControl() { - if (mIs24HourView) { - mAmPmSpinner.setVisibility(View.GONE); - } else { - int index = mIsAm ? Calendar.AM : Calendar.PM; - mAmPmSpinner.setValue(index); - mAmPmSpinner.setVisibility(View.VISIBLE); - }// 对于上下午操作的算法 - } - - private void updateHourControl() { - if (mIs24HourView) { - mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); - mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW); - } else { - mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW); - mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW); - }// 对与小时的算法 - } - - /** - * Set the callback that indicates the 'Set' button has been pressed. - * @param callback the callback, if null will do nothing - */ - public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { - mOnDateTimeChangedListener = callback; - } - - private void onDateTimeChanged() { - if (mOnDateTimeChangedListener != null) { - mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), - getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); - } - } -} \ No newline at end of file diff --git a/DateTimePickerDialog.java b/DateTimePickerDialog.java deleted file mode 100644 index c11de32..0000000 --- a/DateTimePickerDialog.java +++ /dev/null @@ -1,87 +0,0 @@ -package net.micode.notes.ui; - -import java.util.Calendar; - -import net.micode.notes.R; -import net.micode.notes.ui.DateTimePicker; -import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener; - -import android.app.AlertDialog; -import android.content.Context; -import android.content.DialogInterface; -import android.content.DialogInterface.OnClickListener; -import android.text.format.DateFormat; -import android.text.format.DateUtils; - -public class DateTimePickerDialog extends AlertDialog implements OnClickListener { - - private Calendar mDate = Calendar.getInstance(); - //创建一个Calendar类型的变量 mDate，方便时间的操作 - private boolean mIs24HourView; - private OnDateTimeSetListener mOnDateTimeSetListener; - //声明一个时间日期滚动选择控件 mOnDateTimeSetListener - private DateTimePicker mDateTimePicker; - //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。 - //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的 - - public interface OnDateTimeSetListener { - void OnDateTimeSet(AlertDialog dialog, long date); - } - - public DateTimePickerDialog(Context context, long date) { - //对该界面对话框的实例化 - super(context); - //对数据库的操作 - mDateTimePicker = new DateTimePicker(context); - setView(mDateTimePicker); - //添加一个子视图 - mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { - public void onDateTimeChanged(DateTimePicker view, int year, int month, - int dayOfMonth, int hourOfDay, int minute) { - mDate.set(Calendar.YEAR, year); - mDate.set(Calendar.MONTH, month); - mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); - mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); - mDate.set(Calendar.MINUTE, minute); - //将视图中的各选项设置为系统当前时间 - updateTitle(mDate.getTimeInMillis()); - } - }); - mDate.setTimeInMillis(date); - //得到系统时间 - mDate.set(Calendar.SECOND, 0); - //将秒数设置为0 - mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); - setButton(context.getString(R.string.datetime_dialog_ok), this); - setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); - //设置按钮 - set24HourView(DateFormat.is24HourFormat(this.getContext())); - //时间标准化打印 - updateTitle(mDate.getTimeInMillis()); - } - - public void set24HourView(boolean is24HourView) { - mIs24HourView = is24HourView; - } - - public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { - mOnDateTimeSetListener = callBack; - }//将时间日期滚动选择控件实例化 - - private void updateTitle(long date) { - int flag = - DateUtils.FORMAT_SHOW_YEAR | - DateUtils.FORMAT_SHOW_DATE | - DateUtils.FORMAT_SHOW_TIME; - flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; - setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); - }//android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间 - - public void onClick(DialogInterface arg0, int arg1) { - if (mOnDateTimeSetListener != null) { - mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); - } - }//第一个参数arg0是接收到点击事件的对话框 - //第二个参数arg1是该对话框上的按钮 - -} \ No newline at end of file diff --git a/OLG--I'm OLD 8/新建 文本文档.txt b/OLG--I'm OLD 8/新建 文本文档.txt deleted file mode 100644 index e69de29..0000000 diff --git a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Contact.java b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Contact.java index d97ac5d..6083afa 100644 --- a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Contact.java +++ b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Contact.java @@ -14,60 +14,72 @@ * limitations under the License. */ -package net.micode.notes.data; - -import android.content.Context; -import android.database.Cursor; -import android.provider.ContactsContract.CommonDataKinds.Phone; -import android.provider.ContactsContract.Data; -import android.telephony.PhoneNumberUtils; -import android.util.Log; - -import java.util.HashMap; - -public class Contact { - private static HashMap sContactCache; - private static final String TAG = "Contact"; - - private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER - + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" - + " AND " + Data.RAW_CONTACT_ID + " IN " - + "(SELECT raw_contact_id " - + " FROM phone_lookup" - + " WHERE min_match = '+')"; - - public static String getContact(Context context, String phoneNumber) { - if(sContactCache == null) { - sContactCache = new HashMap(); - } - - if(sContactCache.containsKey(phoneNumber)) { - return sContactCache.get(phoneNumber); - } - - String selection = CALLER_ID_SELECTION.replace("+", - PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); - Cursor cursor = context.getContentResolver().query( - Data.CONTENT_URI, - new String [] { Phone.DISPLAY_NAME }, - selection, - new String[] { phoneNumber }, - null); - - if (cursor != null && cursor.moveToFirst()) { - try { - String name = cursor.getString(0); - sContactCache.put(phoneNumber, name); - return name; - } catch (IndexOutOfBoundsException e) { - Log.e(TAG, " Cursor get string error " + e.toString()); - return null; - } finally { - cursor.close(); - } - } else { - Log.d(TAG, "No contact matched with number:" + phoneNumber); - return null; - } - } -} + package net.micode.notes.data; + + import android.content.Context; + + import android.database.Cursor; + import android.provider.ContactsContract.CommonDataKinds.Phone; + import android.provider.ContactsContract.Data; + import android.telephony.PhoneNumberUtils; + import android.util.Log; + + import java.util.HashMap; + //change + public class Contact { //联系人 + private static HashMap sContactCache; + private static final String TAG = "Contact"; + + // 定义字符串CALLER_ID_SELECTION + private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + + + Phone.NUMBER + + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + + " AND " + Data.RAW_CONTACT_ID + " IN " + + "(SELECT raw_contact_id " + + " FROM phone_lookup" + + " WHERE min_match = '+')"; + + // 获取联系人 + public static String getContact(Context context, String phoneNumber) { + if(sContactCache == null) { + sContactCache = new HashMap(); + } + + // 查找HashMap中是否已有phoneNumber信息 + if(sContactCache.containsKey(phoneNumber)) { + return sContactCache.get(phoneNumber); + } + + String selection = CALLER_ID_SELECTION.replace("+", + PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 查找数据库中phoneNumber的信息 + Cursor cursor = context.getContentResolver().query( + Data.CONTENT_URI, + new String [] { Phone.DISPLAY_NAME }, + selection, + new String[] { phoneNumber }, + null); + + // 判定查询结果 + // moveToFirst()返回第一条 + if (cursor != null && cursor.moveToFirst()) { + try { + // 找到相关信息 + String name = cursor.getString(0); + sContactCache.put(phoneNumber, name); + return name; + // 异常 + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, " Cursor get string error " + e.toString()); + return null; + } finally { + cursor.close(); + } + // 未找到相关信息 + } else { + Log.d(TAG, "No contact matched with number:" + phoneNumber); + return null; + } + } + } \ No newline at end of file diff --git a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Notes.java b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Notes.java index f240604..1cdfe5e 100644 --- a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Notes.java +++ b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/Notes.java @@ -15,15 +15,19 @@ */ package net.micode.notes.data; - + +import android.content.ContentUris; import android.net.Uri; +// Notes 类中定义了很多常量，这些常量大多是int型和string型 public class Notes { public static final String AUTHORITY = "micode_notes"; public static final String TAG = "Notes"; + + //以下三个常量对NoteColumns.TYPE的值进行设置时会用到 public static final int TYPE_NOTE = 0; public static final int TYPE_FOLDER = 1; public static final int TYPE_SYSTEM = 2; - + /** * Following IDs are system folders' identifiers * {@link Notes#ID_ROOT_FOLDER } is default folder @@ -34,246 +38,282 @@ public class Notes { public static final int ID_TEMPARAY_FOLDER = -1; public static final int ID_CALL_RECORD_FOLDER = -2; public static final int ID_TRASH_FOLER = -3; - - public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; - public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; - public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; - public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; - public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; - public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; - + + public static final String INTENT_EXTRA_ALERT_DATE = + +"net.micode.notes.alert_date"; + public static final String INTENT_EXTRA_BACKGROUND_ID = + +"net.micode.notes.background_color_id"; + public static final String INTENT_EXTRA_WIDGET_ID = + +"net.micode.notes.widget_id"; + public static final String INTENT_EXTRA_WIDGET_TYPE = + +"net.micode.notes.widget_type"; + public static final String INTENT_EXTRA_FOLDER_ID = + +"net.micode.notes.folder_id"; + public static final String INTENT_EXTRA_CALL_DATE = + +"net.micode.notes.call_date"; + public static final int TYPE_WIDGET_INVALIDE = -1; public static final int TYPE_WIDGET_2X = 0; public static final int TYPE_WIDGET_4X = 1; - + public static class DataConstants { public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; } - + /** * Uri to query all notes and folders */ - public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note"); - + public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + + +AUTHORITY + "/note");//定义查询便签和文件夹的指针。 + +// public static final Uri my_URI = ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI , 10); + /** * Uri to query data */ - public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); - + public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + + +AUTHORITY + "/data");//定义查找数据的指针。 + + // 定义NoteColumns的常量,用于后面创建数据库的表头 public interface NoteColumns { /** * The unique ID for a row *

Type: INTEGER (long)

*/ public static final String ID = "_id"; - + /** * The parent's id for note or folder *

Type: INTEGER (long)

*/ - public static final String PARENT_ID = "parent_id"; - + public static final String PARENT_ID = "parent_id";//为什么会有parent_id + /** * Created data for note or folder *

Type: INTEGER (long)

*/ public static final String CREATED_DATE = "created_date"; - + /** * Latest modified date *

Type: INTEGER (long)

*/ public static final String MODIFIED_DATE = "modified_date"; - - + + /** * Alert date *

Type: INTEGER (long)

*/ public static final String ALERTED_DATE = "alert_date"; - + /** * Folder's name or text content of note *

Type: TEXT

*/ public static final String SNIPPET = "snippet"; - + /** * Note's widget id *

Type: INTEGER (long)

*/ public static final String WIDGET_ID = "widget_id"; - + /** * Note's widget type *

Type: INTEGER (long)

*/ public static final String WIDGET_TYPE = "widget_type"; - + /** * Note's background color's id *

Type: INTEGER (long)

*/ public static final String BG_COLOR_ID = "bg_color_id"; - + /** * For text note, it doesn't has attachment, for multi-media * note, it has at least one attachment *

Type: INTEGER

*/ public static final String HAS_ATTACHMENT = "has_attachment"; - + /** * Folder's count of notes *

Type: INTEGER (long)

*/ public static final String NOTES_COUNT = "notes_count"; - + /** * The file type: folder or note *

Type: INTEGER

*/ public static final String TYPE = "type"; - + /** * The last sync id *

Type: INTEGER (long)

*/ - public static final String SYNC_ID = "sync_id"; - + public static final String SYNC_ID = "sync_id";//同步 + /** * Sign to indicate local modified or not *

Type: INTEGER

*/ public static final String LOCAL_MODIFIED = "local_modified"; - + /** * Original parent id before moving into temporary folder *

Type : INTEGER

*/ public static final String ORIGIN_PARENT_ID = "origin_parent_id"; - + /** * The gtask id *

Type : TEXT

*/ public static final String GTASK_ID = "gtask_id"; - + /** * The version code *

Type : INTEGER (long)

*/ public static final String VERSION = "version"; - } - + }//这些常量主要是定义便签的属性的。 + + // 定义DataColumns的常量,用于后面创建数据库的表头 public interface DataColumns { /** * The unique ID for a row *

Type: INTEGER (long)

*/ public static final String ID = "_id"; - + /** * The MIME type of the item represented by this row. *

Type: Text

*/ public static final String MIME_TYPE = "mime_type"; - + /** * The reference id to note that this data belongs to *

Type: INTEGER (long)

*/ public static final String NOTE_ID = "note_id"; - + /** * Created data for note or folder *

Type: INTEGER (long)

*/ public static final String CREATED_DATE = "created_date"; - + /** * Latest modified date *

Type: INTEGER (long)

*/ public static final String MODIFIED_DATE = "modified_date"; - + /** * Data's content *

Type: TEXT

*/ public static final String CONTENT = "content"; - - + + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * integer data type *

Type: INTEGER

*/ public static final String DATA1 = "data1"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * integer data type *

Type: INTEGER

*/ public static final String DATA2 = "data2"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * TEXT data type *

Type: TEXT

*/ public static final String DATA3 = "data3"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * TEXT data type *

Type: TEXT

*/ public static final String DATA4 = "data4"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * TEXT data type *

Type: TEXT

*/ public static final String DATA5 = "data5"; - } - + }//主要是定义存储便签内容数据的 public static final class TextNote implements DataColumns { /** * Mode to indicate the text in check list mode or not *

Type: Integer 1:check list mode 0: normal mode

*/ public static final String MODE = DATA1; - + public static final int MODE_CHECK_LIST = 1; - - public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; - - public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; - - public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); - } - + + public static final String CONTENT_TYPE = + +"vnd.android.cursor.dir/text_note"; + + public static final String CONTENT_ITEM_TYPE = + +"vnd.android.cursor.item/text_note"; + + public static final Uri CONTENT_URI = Uri.parse("content://" + + +AUTHORITY + "/text_note"); + }//文本内容的数据结构 + public static final class CallNote implements DataColumns { /** * Call date for this record *

Type: INTEGER (long)

*/ public static final String CALL_DATE = DATA1; - + /** * Phone number for this record *

Type: TEXT

*/ public static final String PHONE_NUMBER = DATA3; - - public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; - - public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; - - public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note"); - } -} + + public static final String CONTENT_TYPE = + +"vnd.android.cursor.dir/call_note"; + + public static final String CONTENT_ITEM_TYPE = + +"vnd.android.cursor.item/call_note"; + + public static final Uri CONTENT_URI = Uri.parse("content://" + + +AUTHORITY + "/call_note"); + }//电话内容的数据结构 +} \ No newline at end of file diff --git a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java index ffe5d57..531e473 100644 --- a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java +++ b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java @@ -15,33 +15,33 @@ */ package net.micode.notes.data; - -import android.content.ContentValues; -import android.content.Context; -import android.database.sqlite.SQLiteDatabase; -import android.database.sqlite.SQLiteOpenHelper; + +import android.content.ContentValues;//就是用于保存一些数据（string boolean byte double float int long short ...）信息，这些信息可以被数据库操作时使用。 +import android.content.Context;//加载和访问资源。（android中主要是这两个功能，但是这里具体不清楚） +import android.database.sqlite.SQLiteDatabase;//主要提供了对应于添加、删除、更新、查询的操作方法： insert()、delete()、update()和query()。配合content.values +import android.database.sqlite.SQLiteOpenHelper;//用来管理数据的创建和版本更新 import android.util.Log; - + import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.DataConstants; import net.micode.notes.data.Notes.NoteColumns; - - +//数据库操作，用SQLOpenhelper,对一些note和文件进行数据库的操作，比如删除文件后，将文件里的note也相应删除 + public class NotesDatabaseHelper extends SQLiteOpenHelper { private static final String DB_NAME = "note.db"; - + private static final int DB_VERSION = 4; - - public interface TABLE { + + public interface TABLE { //接口，分成note和data，在后面的程序里分别使用过 public static final String NOTE = "note"; - + public static final String DATA = "data"; } - + private static final String TAG = "NotesDatabaseHelper"; - + private static NotesDatabaseHelper mInstance; - + private static final String CREATE_NOTE_TABLE_SQL = "CREATE TABLE " + TABLE.NOTE + "(" + NoteColumns.ID + " INTEGER PRIMARY KEY," + @@ -61,8 +61,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + - ")"; - + ")";//数据库中需要存储的项目的名称，就相当于创建一个表格的表头的内容。 + private static final String CREATE_DATA_TABLE_SQL = "CREATE TABLE " + TABLE.DATA + "(" + DataColumns.ID + " INTEGER PRIMARY KEY," + @@ -76,12 +76,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + - ")"; - + ")";//和上面的功能一样，主要是存储的项目不同 + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = "CREATE INDEX IF NOT EXISTS note_id_index ON " + - TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; - + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";//存储便签编号的一个数据表格 + /** * Increase folder's note count when move note to the folder */ @@ -92,8 +92,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + - " END"; - + " END";//在文件夹中移入一个Note之后需要更改的数据的表格。 + /** * Decrease folder's note count when move note from folder */ @@ -105,8 +105,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + - " END"; - + " END";//在文件夹中移出一个Note之后需要更改的数据的表格。 + /** * Increase folder's note count when insert new note to the folder */ @@ -117,8 +117,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + - " END"; - + " END";//在文件夹中插入一个Note之后需要更改的数据的表格。 + /** * Decrease folder's note count when delete note from the folder */ @@ -130,8 +130,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + " AND " + NoteColumns.NOTES_COUNT + ">0;" + - " END"; - + " END";//在文件夹中删除一个Note之后需要更改的数据的表格。 + /** * Update note's content when insert data with type {@link DataConstants#NOTE} */ @@ -143,8 +143,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + - " END"; - + " END";//在文件夹中对一个Note导入新的数据之后需要更改的数据的表格。 + /** * Update note's content when data with {@link DataConstants#NOTE} type has changed */ @@ -156,8 +156,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + - " END"; - + " END";//Note数据被修改后需要更改的数据的表格。 + /** * Update note's content when data with {@link DataConstants#NOTE} type has deleted */ @@ -169,8 +169,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.SNIPPET + "=''" + " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + - " END"; - + " END";//Note数据被删除后需要更改的数据的表格。 + /** * Delete datas belong to note which has been deleted */ @@ -180,8 +180,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " BEGIN" + " DELETE FROM " + TABLE.DATA + " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + - " END"; - + " END";//删除已删除的便签的数据后需要更改的数据的表格。 + /** * Delete notes belong to folder which has been deleted */ @@ -191,8 +191,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " BEGIN" + " DELETE FROM " + TABLE.NOTE + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + - " END"; - + " END";//删除已删除的文件夹的便签后需要更改的数据的表格。 + /** * Move notes belong to folder which has been moved to trash folder */ @@ -204,19 +204,19 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + - " END"; - + " END";//还原垃圾桶中便签后需要更改的数据的表格。 + public NotesDatabaseHelper(Context context) { super(context, DB_NAME, null, DB_VERSION); - } - + }//构造函数，传入数据库的名称和版本 + public void createNoteTable(SQLiteDatabase db) { db.execSQL(CREATE_NOTE_TABLE_SQL); reCreateNoteTableTriggers(db); createSystemFolder(db); Log.d(TAG, "note table has been created"); - } - + }//创建表格（用来存储标签属性） + private void reCreateNoteTableTriggers(SQLiteDatabase db) { db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); @@ -225,7 +225,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete"); db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash"); - + db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); @@ -233,18 +233,19 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER); db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER); db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); - } - + }//execSQL是数据库操作的API，主要是更改行为的SQL语句。 + //在这里主要是用来重新创建上述定义的表格用的，先删除原来有的数据库的触发器再重新创建新的数据库 + private void createSystemFolder(SQLiteDatabase db) { ContentValues values = new ContentValues(); - + /** * call record foler for call notes */ values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - + /** * root folder which is default folder */ @@ -252,7 +253,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - + /** * temporary folder which is used for moving note */ @@ -260,7 +261,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - + /** * create trash folder */ @@ -268,78 +269,80 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - } - + }//创建几个系统文件夹 + public void createDataTable(SQLiteDatabase db) { db.execSQL(CREATE_DATA_TABLE_SQL); reCreateDataTableTriggers(db); db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); Log.d(TAG, "data table has been created"); - } - + }//创建表格（用来存储标签内容） + private void reCreateDataTableTriggers(SQLiteDatabase db) { db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); - + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); - } - + }//同上面的execSQL + static synchronized NotesDatabaseHelper getInstance(Context context) { if (mInstance == null) { mInstance = new NotesDatabaseHelper(context); } return mInstance; - } - + }//上网查是为解决同一时刻只能有一个线程执行. + //在写程序库代码时，有时有一个类需要被所有的其它类使用， + //但又要求这个类只能被实例化一次，是个服务类，定义一次，其它类使用同一个这个类的实例 + @Override public void onCreate(SQLiteDatabase db) { createNoteTable(db); createDataTable(db); - } - + }//实现两个表格（上面创建的两个表格） + @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { boolean reCreateTriggers = false; boolean skipV2 = false; - + if (oldVersion == 1) { upgradeToV2(db); skipV2 = true; // this upgrade including the upgrade from v2 to v3 oldVersion++; } - + if (oldVersion == 2 && !skipV2) { upgradeToV3(db); reCreateTriggers = true; oldVersion++; } - + if (oldVersion == 3) { upgradeToV4(db); oldVersion++; } - + if (reCreateTriggers) { reCreateNoteTableTriggers(db); reCreateDataTableTriggers(db); } - + if (oldVersion != newVersion) { throw new IllegalStateException("Upgrade notes database to version " + newVersion + "fails"); } - } - + }//数据库版本的更新（数据库内容的更改） + private void upgradeToV2(SQLiteDatabase db) { db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); createNoteTable(db); createDataTable(db); - } - + }//更新到V2版本 + private void upgradeToV3(SQLiteDatabase db) { // drop unused triggers db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); @@ -353,10 +356,10 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - } - + }//更新到V3版本 + private void upgradeToV4(SQLiteDatabase db) { db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0"); - } + }//更新到V4版本 } diff --git a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesProvider.java b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesProvider.java index edb0a60..1ed1bd8 100644 --- a/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesProvider.java +++ b/src/MiNotes-master/app/src/main/java/net/micode/notes/data/NotesProvider.java @@ -15,8 +15,7 @@ */ package net.micode.notes.data; - - + import android.app.SearchManager; import android.content.ContentProvider; import android.content.ContentUris; @@ -28,30 +27,38 @@ import android.database.sqlite.SQLiteDatabase; import android.net.Uri; import android.text.TextUtils; import android.util.Log; - + import net.micode.notes.R; import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.NotesDatabaseHelper.TABLE; - - +//为存储和获取数据提供接口。可以在不同的应用程序之间共享数据 +//ContentProvider提供的方法 +//query：查询 +//insert：插入 +//update：更新 +//delete：删除 +//getType：得到数据类型 public class NotesProvider extends ContentProvider { + // UriMatcher用于匹配Uri private static final UriMatcher mMatcher; - + private NotesDatabaseHelper mHelper; - + private static final String TAG = "NotesProvider"; - + private static final int URI_NOTE = 1; private static final int URI_NOTE_ITEM = 2; private static final int URI_DATA = 3; private static final int URI_DATA_ITEM = 4; - + private static final int URI_SEARCH = 5; private static final int URI_SEARCH_SUGGEST = 6; - + static { + // 创建UriMatcher时，调用UriMatcher(UriMatcher.NO_MATCH)表示不匹配任何路径的返回码 mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + // 把需要匹配Uri路径全部给注册上 mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); @@ -60,11 +67,12 @@ public class NotesProvider extends ContentProvider { mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST); mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST); } - + /** * x'0A' represents the '\n' character in sqlite. For title and content in the search result, * we will trim '\n' and white space in order to show more information. */ + // 声明 NOTES_SEARCH_PROJECTION private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," @@ -72,26 +80,32 @@ public class NotesProvider extends ContentProvider { + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + "," + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + "," + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA; - + // 声明NOTES_SNIPPET_SEARCH_QUERY private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION + " FROM " + TABLE.NOTE + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; - + @Override + // Context只有在onCreate()中才被初始化 + // 对mHelper进行实例化 public boolean onCreate() { mHelper = NotesDatabaseHelper.getInstance(getContext()); return true; } - + @Override + // 查询uri在数据库中对应的位置 public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { Cursor c = null; + // 获取可读数据库 SQLiteDatabase db = mHelper.getReadableDatabase(); String id = null; + // 匹配查找uri switch (mMatcher.match(uri)) { + // 对于不同的匹配值，在数据库中查找相应的条目 case URI_NOTE: c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, sortOrder); @@ -113,23 +127,26 @@ public class NotesProvider extends ContentProvider { case URI_SEARCH: case URI_SEARCH_SUGGEST: if (sortOrder != null || projection != null) { + // 不合法的参数异常 throw new IllegalArgumentException( "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); } - + String searchString = null; if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { if (uri.getPathSegments().size() > 1) { + // getPathSegments()方法得到一个String的List， + // 在uri.getPathSegments().get(1)为第2个元素 searchString = uri.getPathSegments().get(1); } } else { searchString = uri.getQueryParameter("pattern"); } - + if (TextUtils.isEmpty(searchString)) { return null; } - + try { searchString = String.format("%%%s%%", searchString); c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY, @@ -139,6 +156,7 @@ public class NotesProvider extends ContentProvider { } break; default: + // 抛出异常 throw new IllegalArgumentException("Unknown URI " + uri); } if (c != null) { @@ -146,15 +164,19 @@ public class NotesProvider extends ContentProvider { } return c; } - + @Override + // 插入一个uri public Uri insert(Uri uri, ContentValues values) { + // 获得可写的数据库 SQLiteDatabase db = mHelper.getWritableDatabase(); long dataId = 0, noteId = 0, insertedId = 0; switch (mMatcher.match(uri)) { + // 新增一个条目 case URI_NOTE: insertedId = noteId = db.insert(TABLE.NOTE, null, values); break; + // 如果存在，查找NOTE_ID case URI_DATA: if (values.containsKey(DataColumns.NOTE_ID)) { noteId = values.getAsLong(DataColumns.NOTE_ID); @@ -163,28 +185,33 @@ public class NotesProvider extends ContentProvider { } insertedId = dataId = db.insert(TABLE.DATA, null, values); break; - default: + default: throw new IllegalArgumentException("Unknown URI " + uri); } // Notify the note uri + // notifyChange获得一个ContextResolver对象并且更新里面的内容 if (noteId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); } - + // Notify the data uri if (dataId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); } - + + // 返回插入的uri的路径 return ContentUris.withAppendedId(uri, insertedId); } - + @Override + // 删除一个uri public int delete(Uri uri, String selection, String[] selectionArgs) { + //Uri代表要操作的数据，Android上可用的每种资源 -包括 图像、视频片段、音频资源等都可以用Uri来表示。 int count = 0; String id = null; + // 获得可写的数据库 SQLiteDatabase db = mHelper.getWritableDatabase(); boolean deleteData = false; switch (mMatcher.match(uri)) { @@ -226,8 +253,9 @@ public class NotesProvider extends ContentProvider { } return count; } - + @Override + // 更新一个uri public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { int count = 0; String id = null; @@ -257,7 +285,7 @@ public class NotesProvider extends ContentProvider { default: throw new IllegalArgumentException("Unknown URI " + uri); } - + if (count > 0) { if (updateData) { getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); @@ -266,11 +294,13 @@ public class NotesProvider extends ContentProvider { } return count; } - + + // 将字符串解析成规定格式 private String parseSelection(String selection) { return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); } - + + //增加一个noteVersion private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { StringBuilder sql = new StringBuilder(120); sql.append("UPDATE "); @@ -278,7 +308,7 @@ public class NotesProvider extends ContentProvider { sql.append(" SET "); sql.append(NoteColumns.VERSION); sql.append("=" + NoteColumns.VERSION + "+1 "); - + if (id > 0 || !TextUtils.isEmpty(selection)) { sql.append(" WHERE "); } @@ -292,14 +322,15 @@ public class NotesProvider extends ContentProvider { } sql.append(selectString); } - + + // execSQL()方法可以执行insert、delete、update和CREATE TABLE之类有更改行为的SQL语句 mHelper.getWritableDatabase().execSQL(sql.toString()); } - + @Override public String getType(Uri uri) { // TODO Auto-generated method stub return null; } - -} + +} \ No newline at end of file