master
lyt 2 years ago
parent 2f57fb4341
commit 6b5b66f9b2

@ -39,61 +39,119 @@ import net.micode.notes.tool.DataUtils;
import java.io.IOException;
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
private long mNoteId;
private String mSnippet;
/**
*
* @ProjectName:
* @Package: net.micode.notes.ui
* @ClassName: AlarmAlertActivity
* @Description: AlarmAlertActivity
* 便AlarmAlertActivity
*
*
* @CreateDate: 2023-12-24 10:33
* @UpdateUser:
* @UpdateDate: 2023-12-24 10:33
* @UpdateRemark:
* @Version: 1.0
*/
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
private long mNoteId; //文本在数据库存储中的ID号
private String mSnippet; //闹钟提示时出现的文本片段
private static final int SNIPPET_PREW_MAX_LEN = 60;
MediaPlayer mPlayer;
/**
* @method onCreate
* @description :
*
*
* Intent便ID
* 使便ID便
* MediaPlayer
* 便便
* 便
* 便
* @date: 2023-12-24 10:41
* @param
* @return
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Bundle类型的数据与Map类型的数据相似都是以key-value的形式存储数据的
//onsaveInstanceState方法是用来保存Activity的状态的
//能从onCreate的参数savedInsanceState中获得状态数
requestWindowFeature(Window.FEATURE_NO_TITLE);
//界面显示——无标题
final Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
if (!isScreenOn()) {
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
//保持窗体点亮
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
//将窗体点亮
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
//允许窗体点亮时锁屏
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
}
}//在手机锁屏后如果到了闹钟提示时间,点亮屏幕
Intent intent = getIntent();
try {
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
//根据ID从数据库中获取标签的内容
//getContentResolver是实现数据共享实例存储。
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet;
//判断标签片段是否达到符合长度
} catch (IllegalArgumentException e) {
e.printStackTrace();
return;
}
mPlayer = new MediaPlayer();
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
showActionDialog();
//弹出对话框
playAlarmSound();
//闹钟提示音激发
} else {
finish();
//完成闹钟动作
}
}
/**
* @method isScreenOn
* @description
* @date: 2023-12-24 10:45
* @param
* @return bool
*/
private boolean isScreenOn() {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn();
}
/**
* @method playAlarmSound
* @description:
*
*
* @date: 2023-12-24 10:47
* @param
* @return
*/
private void playAlarmSound() {
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
//调用系统的铃声管理URI得到闹钟提示音
int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams);
} else {
@ -101,12 +159,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
}
try {
mPlayer.setDataSource(this, url);
//方法setDataSource(Context context, Uri uri)
//解释:无返回值,设置多媒体数据来源【根据 Uri】
mPlayer.prepare();
//准备同步
mPlayer.setLooping(true);
//设置是否循环播放
mPlayer.start();
//开始播放
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//e.printStackTrace()函数功能是抛出异常, 还将显示出更深的调用信息
//System.out.println(e),这个方法打印出异常,并且输出在哪里出现的异常
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
@ -119,39 +184,95 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
}
}
/**
* @method showActionDialog
* @description
* AlertDialog.BuilderR.string.app_name
* mSnippet
* Positive ButtonR.string.notealert_ok
* isScreenOn()Negative ButtonR.string.notealert_enter
* dialog.show().setOnDismissListener(this)
* @date: 2023-12-24 10:51
* @param
* @return
*/
private void showActionDialog() {
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
/*
* AlertDialogProtected
* newAlertDialogAlertDialog
* AlertDialogAlertDialog.Buildercreate()
* dialogAlertDialog
*/
dialog.setTitle(R.string.app_name);
//为对话框设置标题
dialog.setMessage(mSnippet);
//为对话框设置内容
dialog.setPositiveButton(R.string.notealert_ok, this);
//给对话框添加"Yes"按钮
if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this);
}
}//对话框添加"No"按钮
dialog.show().setOnDismissListener(this);
}
/**
* @method onClick
* @description :
*
* 便idActivity
* @date: 2023-12-24 10:55
* @param
* @return
*/
public void onClick(DialogInterface dialog, int which) {
switch (which) {
//用which来选择click后下一步的操作
case DialogInterface.BUTTON_NEGATIVE:
//这是取消操作
Intent intent = new Intent(this, NoteEditActivity.class);
//实现两个类间的数据传输
intent.setAction(Intent.ACTION_VIEW);
//设置动作属性
intent.putExtra(Intent.EXTRA_UID, mNoteId);
//实现key-value对
//EXTRA_UID为keymNoteId为键
startActivity(intent);
//开始动作
break;
default:
//这是确定操作'
break;
}
}
/**
* @method onDismiss
* @description Activity
* @date: 2023-12-24 10:57
* @param
* @return
*/
public void onDismiss(DialogInterface dialog) {
stopAlarmSound();
//停止闹钟声音
finish();
//完成该动作
}
/**
* @method stopAlarmSound
* @description
* @date: 2023-12-24 10:58
* @param
* @return
*/
private void stopAlarmSound() {
if (mPlayer != null) {
mPlayer.stop();
//停止播放
mPlayer.release();
//释放MediaPlayer对象
mPlayer = null;
}
}

@ -27,6 +27,21 @@ import android.database.Cursor;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
/**
*
* @ProjectName:
* @Package: net.micode.notes.ui
* @ClassName: AlarmInitReceiver
* @Description: AlarmInitReceiver便广BroadcastReceiver
* 广
* @Author: xumingyang
* @CreateDate: 2023-12-24 11:11
* @UpdateUser:
* @UpdateDate: 2023-12-24 11:11
* @UpdateRemark:
* @Version: 1.0
*/
public class AlarmInitReceiver extends BroadcastReceiver {
@ -34,19 +49,35 @@ public class AlarmInitReceiver extends BroadcastReceiver {
NoteColumns.ID,
NoteColumns.ALERTED_DATE
};
//对数据库的操作调用标签ID和闹钟时间
private static final int COLUMN_ID = 0;
private static final int COLUMN_ALERTED_DATE = 1;
/**
* @method onReceive
* @description
* 便
* @date: 2023-12-24 11:26
* @author: lyt
* @param *Cursor
* alertDate
* Intentsender广AlarmReceiver
* PendingIntent使getBroadcast()广PendingIntentpendingIntent
* @return Cursorc
*/
@Override
public void onReceive(Context context, Intent intent) {
long currentDate = System.currentTimeMillis();
//System.currentTimeMillis()产生一个当前的毫秒
//这个毫秒其实就是自1970年1月1日0时起的毫秒数
Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
PROJECTION,
NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
new String[] { String.valueOf(currentDate) },
//将long变量currentDate转化为字符串
null);
//Cursor在这里的作用是通过查找数据库中的标签内容找到和当前系统时间相等的标签
if (c != null) {
if (c.moveToFirst()) {
do {
@ -62,4 +93,9 @@ public class AlarmInitReceiver extends BroadcastReceiver {
c.close();
}
}
/*
*
* IntentPendingIntentAlarmManager
*
*/
}

@ -20,11 +20,36 @@ import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
/**
*
* @ProjectName:
* @Package: net.micode.notes.ui
* @ClassName: AlarmReceiver
* @Description: AlarmReceiver便
*
* @Author: liyiting
* @CreateDate: 2023-12-24 12:46
* @UpdateUser:
* @UpdateDate: 2023-12-24 12:46
* @UpdateRemark:
*/
/**
* @method
* @description 广AlarmAlertActivity
* @param *Context contextIntent intentcontextintent广
* @return
*/
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//重写了onReceive()方法,该方法在接收到广播时会被调用
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);
}
}

@ -28,8 +28,22 @@ import android.view.View;
import android.widget.FrameLayout;
import android.widget.NumberPicker;
/**
*
* @ProjectName:
* @Package: net.micode.notes.ui
* @ClassName: DateTimePicker
* @Description:
* 使NumberPicker便
* @CreateDate: 2023-12-24 12:58
* @UpdateUser:
* @UpdateDate: 2023-12-24 12:58
* @UpdateRemark:
* @Version: 1.0
*/
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;
@ -45,13 +59,15 @@ public class DateTimePicker extends FrameLayout {
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;
@ -72,8 +88,21 @@ public class DateTimePicker extends FrameLayout {
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mDateupdateDateControl是同步操作
private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
//这里是对 小时Hour 的监听
/**
* @method onValueChange
* @description NumberPicker
*
* 24
* @date: 2023-12-24 13:03
* @param *Calendarcal便
* @return isdateChanged bool
*/
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
boolean isDateChanged = false;
@ -83,29 +112,33 @@ public class DateTimePicker extends FrameLayout {
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小时制时晚上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));
@ -116,16 +149,25 @@ public class DateTimePicker extends FrameLayout {
};
private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
/**
* @method onValueChange
* @description NumberPicker
*
* @param *picker NumberPicker oldVal newVal
*/
@Override
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());
@ -145,9 +187,15 @@ public class DateTimePicker extends FrameLayout {
};
private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
/**
* @method onValueChange
* @description NumberPicker
* /
*/
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
mIsAm = !mIsAm;
//对AM和PM的监听
if (mIsAm) {
mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
} else {
@ -166,18 +214,25 @@ public class DateTimePicker extends FrameLayout {
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);
/*
* Activitylayoutlayout
* layoutinflate()layout
* findViewById()
*/
mDateSpinner = (NumberPicker) findViewById(R.id.date);
mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
@ -214,17 +269,28 @@ public class DateTimePicker extends FrameLayout {
mInitialising = false;
}
/**
* @method setEnabled
* @description
* @param * enabled
* @return mIsEnabled enabled
*/
@Override
public void setEnabled(boolean enabled) {
if (mIsEnabled == enabled) {
return;
}
/*
* enabled mIsEnabled
*
*/
super.setEnabled(enabled);
mDateSpinner.setEnabled(enabled);
mMinuteSpinner.setEnabled(enabled);
mHourSpinner.setEnabled(enabled);
mAmPmSpinner.setEnabled(enabled);
mIsEnabled = enabled;
//将 mIsEnabled 的值更新为传入的 enabled以保持状态同步
}
@Override
@ -239,7 +305,7 @@ public class DateTimePicker extends FrameLayout {
*/
public long getCurrentDateInTimeMillis() {
return mDate.getTimeInMillis();
}
}//实现函数——得到当前的秒数
/**
* Set the current date
@ -251,7 +317,7 @@ public class DateTimePicker extends FrameLayout {
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
@ -269,13 +335,14 @@ public class DateTimePicker extends FrameLayout {
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);
}
@ -446,7 +513,7 @@ public class DateTimePicker extends FrameLayout {
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) {
@ -456,7 +523,7 @@ public class DateTimePicker extends FrameLayout {
mAmPmSpinner.setValue(index);
mAmPmSpinner.setVisibility(View.VISIBLE);
}
}
}// 对于上下午操作的算法
private void updateHourControl() {
if (mIs24HourView) {
@ -466,7 +533,7 @@ public class DateTimePicker extends FrameLayout {
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.

@ -29,21 +29,42 @@ import android.content.DialogInterface.OnClickListener;
import android.text.format.DateFormat;
import android.text.format.DateUtils;
/**
*
* @ProjectName: DateTimePickerDialog
* @Package: net.micode.notes.ui
* @ClassName: DateTimePickerDialog
* @Description: DateTimePickerDialog
* 便
* DateTimePickerDialog 便使便
* @CreateDate: 2023-12-24 13:52
* @UpdateUser:
* @UpdateDate: 2023-12-24 13:52
* @UpdateRemark:
* @Version: 1.0
*/
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) {
@ -52,15 +73,21 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
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 对日期时间进行标准化处理
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
//将日期时间选择器设置为当前设置的日期时间。
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());
}
@ -70,7 +97,7 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
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 =
@ -79,12 +106,13 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
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
}

@ -27,17 +27,37 @@ import android.widget.PopupMenu.OnMenuItemClickListener;
import net.micode.notes.R;
/**
*
* @ProjectName:
* @Package: net.micode.notes.ui
* @ClassName: DropdownMenu
* @Description: DropdownMenu
* DropdownMenu
* 1.使DropdownMenu便
* 2.使DropdownMenu
* 3.使DropdownMenu
* @CreateDate: 2023-12-24 13:57
* @UpdateUser:
* @UpdateDate: 2023-12-24 13:57
* @UpdateRemark:
* @Version: 1.0
*/
public class DropdownMenu {
private Button mButton;
private PopupMenu mPopupMenu;
//声明一个下拉菜单
private Menu mMenu;
public DropdownMenu(Context context, Button button, int menuId) {
mButton = button;
mButton.setBackgroundResource(R.drawable.dropdown_icon);
//设置这个view的背景
mPopupMenu = new PopupMenu(context, mButton);
mMenu = mPopupMenu.getMenu();
mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
//MenuInflater是用来实例化Menu目录下的Menu布局文件
//根据ID来确认menu的内容选项
mButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPopupMenu.show();
@ -49,13 +69,13 @@ public class DropdownMenu {
if (mPopupMenu != null) {
mPopupMenu.setOnMenuItemClickListener(listener);
}
}
}//设置菜单的监听
public MenuItem findItem(int id) {
return mMenu.findItem(id);
}
//对于菜单选项的初始化,根据索引搜索菜单需要的选项
public void setTitle(CharSequence title) {
mButton.setText(title);
}
}
}//布局文件,设置标题

@ -28,25 +28,53 @@ import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
/**
*
* @ProjectName:
* @Package: net.micode.notes.ui
* @ClassName: FoldersListAdapter
* @Description: FoldersListAdapter
* @CreateDate: 2023-12-24 14:05
* @UpdateUser:
* @UpdateDate: 2023-12-24 14:05
* @UpdateRemark:
* @Version: 1.0
*/
public class FoldersListAdapter extends CursorAdapter {
/*
* CursorAdapterCursorListView
* FoldersListAdapterCursorAdapter
* 便
* folder
*/
public static final String [] PROJECTION = {
NoteColumns.ID,
NoteColumns.SNIPPET
};
};//调用数据库中便签的ID和片段
public static final int ID_COLUMN = 0;
public static final int NAME_COLUMN = 1;
/**
* @method FoldersListAdapter
* @description FoldersListAdapter
* @param context
* c Cursor
*/
public FoldersListAdapter(Context context, Cursor c) {
super(context, c);
// TODO Auto-generated constructor stub
}
}//数据库操作
/**
* @method newView
* @description
* @return 使
*/
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return new FolderListItem(context);
}
}//创建一个文件夹,对于各文件夹中子标签的初始化
@Override
public void bindView(View view, Context context, Cursor cursor) {
@ -55,20 +83,23 @@ public class FoldersListAdapter extends CursorAdapter {
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
((FolderListItem) view).bind(folderName);
}
}
}//将各个布局文件绑定起来
public String getFolderName(Context context, int position) {
Cursor cursor = (Cursor) getItem(position);
return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
}
}//根据数据库中标签的ID得到标签的各项内容
private class FolderListItem extends LinearLayout {
private TextView mName;
public FolderListItem(Context context) {
super(context);
//操作数据库
inflate(context, R.layout.folder_list_item, this);
//根据布局文件的名字等信息将其找出来
mName = (TextView) findViewById(R.id.tv_folder_name);
}

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