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@ -22,6 +22,21 @@ import android.preference.PreferenceManager;
import net.micode.notes.R;
import net.micode.notes.ui.NotesPreferenceActivity;
/*使
* R.java
* R.id
* R.drawable 使
* R.layout
* R.menu
* R.String
* R.style 使
* idgetXXX
*
*
* @BG_DEFAULT_COLOR
* BG_DEFAULT_FONT_SIZE
*/
public class ResourceParser {
public static final int YELLOW = 0;
@ -65,9 +80,10 @@ public class ResourceParser {
}
}
//直接获取默认的背景颜色。
public static int getDefaultBgId(Context context) {
if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
} else {
return BG_DEFAULT_COLOR;
@ -162,6 +178,7 @@ public class ResourceParser {
R.style.TextAppearanceSuper
};
//这里有一个容错的函数防止输入的id大于资源总量若如此则自动返回默认的设置结果
public static int getTexAppearanceResource(int id) {
/**
* HACKME: Fix bug of store the resource id in shared preference.

@ -41,58 +41,90 @@ import java.io.IOException;
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
private long mNoteId;
private String mSnippet;
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;
@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中获得状态数据
//界面显示——无标题
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);
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON//保持窗体点亮
//将窗体点亮
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
//允许窗体点亮时锁屏
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
//在手机锁屏后如果到了闹钟提示时间,点亮屏幕
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
}
Intent intent = getIntent();
try {
//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。
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
//判断标签片段是否达到符合长度
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet;
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return;
}
/*
try
{
// 代码区
}
catch(Exception e)
{
// 异常处理
}
*/
mPlayer = new MediaPlayer();
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
//弹出对话框
showActionDialog();
//闹钟提示音激发
playAlarmSound();
} else {
finish();
//完成闹钟动作
}
}
private boolean isScreenOn() {
//判断屏幕是否锁屏,调用系统函数判断,最后返回值是布尔类型
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn();
}
private void playAlarmSound() {
//闹钟提示音激发
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);
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams);
@ -100,13 +132,26 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
}
try {
//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.setDataSource(this, url);
//准备同步
mPlayer.prepare();
//设置是否循环播放
mPlayer.setLooping(true);
//开始播放
mPlayer.start();
} 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();
@ -120,37 +165,67 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
}
private void showActionDialog() {
//AlertDialog的构造方法全部是Protected的
//所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。
//要创建一个AlertDialog就要用到AlertDialog.Builder中的create()方法
//如这里的dialog就是新建了一个AlertDialog
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
//为对话框设置标题
dialog.setTitle(R.string.app_name);
//为对话框设置内容
dialog.setMessage(mSnippet);
//给对话框添加"Yes"按钮
dialog.setPositiveButton(R.string.notealert_ok, this);
if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this);
}
}//对话框添加"No"按钮
dialog.show().setOnDismissListener(this);
}
public void onClick(DialogInterface dialog, int which) {
switch (which) {
switch (which) {//用which来选择click后下一步的操作
//这是取消操作
case DialogInterface.BUTTON_NEGATIVE:
//实现两个类间的数据传输
Intent intent = new Intent(this, NoteEditActivity.class);
//设置动作属性
intent.setAction(Intent.ACTION_VIEW);
//实现key-value对
//EXTRA_UID为keymNoteId为键
intent.putExtra(Intent.EXTRA_UID, mNoteId);
//开始动作
startActivity(intent);
break;
default:
//这是确定操作
break;
}
}
public void onDismiss(DialogInterface dialog) {
public void onDismiss(DialogInterface dialog) {//忽略
//停止闹钟声音
stopAlarmSound();
//完成该动作
finish();
}
private void stopAlarmSound() {
if (mPlayer != null) {
//停止播放
mPlayer.stop();
//释放MediaPlayer对象
mPlayer.release();
mPlayer = null;
}

@ -34,18 +34,23 @@ 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;
@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) },
null);
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()) {
@ -55,11 +60,14 @@ public class AlarmInitReceiver extends BroadcastReceiver {
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);
.getSystemService(Context.ALARM_SERVICE);
alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
} while (c.moveToNext());
}
c.close();
}
//然而通过网上查找资料发现,对于闹钟机制的启动,通常需要上面的几个步骤
//如新建Intent、PendingIntent以及AlarmManager等
//这里就是根据数据库里的闹钟时间创建一个闹钟机制
}
}

@ -23,8 +23,14 @@ import android.content.Intent;
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//启动AlarmAlertActivity
intent.setClass(context, AlarmAlertActivity.class);
//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
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
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

@ -29,9 +29,11 @@ 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;
//初始化控件
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;
@ -46,10 +48,14 @@ public class DateTimePicker extends FrameLayout {
private static final int AMPM_SPINNER_MIN_VAL = 0;
private static final int AMPM_SPINNER_MAX_VAL = 1;
//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 final NumberPicker mDateSpinner;
private final NumberPicker mHourSpinner;
private final NumberPicker mMinuteSpinner;
private final NumberPicker mAmPmSpinner;
//定义了Calendar类型的变量mDate用于操作时间
private Calendar mDate;
private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
@ -66,6 +72,8 @@ public class DateTimePicker extends FrameLayout {
private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
//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
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
updateDateControl();
@ -74,37 +82,52 @@ public class DateTimePicker extends FrameLayout {
};
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;
//声明一个Calendar的变量cal便于后续的操作
Calendar cal = Calendar.getInstance();
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) {
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24小时制时凌晨11点和12点交替时对日期的更改
}
}
//通过数字选择器对newHour的赋值
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
//通过set函数将新的Hour值传给mDate
mDate.set(Calendar.HOUR_OF_DAY, newHour);
onDateTimeChanged();
if (isDateChanged) {
@ -117,10 +140,14 @@ public class DateTimePicker extends FrameLayout {
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;
int offset = 0;//设置offset作为小时改变的一个记录数据
//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
if (oldVal == maxValue && newVal == minValue) {
offset += 1;
} else if (oldVal == minValue && newVal == maxValue) {
@ -145,6 +172,7 @@ public class DateTimePicker extends FrameLayout {
};
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;
@ -160,24 +188,31 @@ public class DateTimePicker extends FrameLayout {
public interface OnDateTimeChangedListener {
void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute);
int dayOfMonth, int hourOfDay, int minute);
}
//通过对数据库的访问,获取当前的系统时间
public DateTimePicker(Context context) {
this(context, System.currentTimeMillis());
}
//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) {
this(context, date, DateFormat.is24HourFormat(context));
}
public DateTimePicker(Context context, long date, boolean is24HourView) {
//获取系统时间
super(context);
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);
@ -227,6 +262,8 @@ public class DateTimePicker extends FrameLayout {
mIsEnabled = enabled;
}
//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;
@ -237,6 +274,8 @@ public class DateTimePicker extends FrameLayout {
*
* @return the current date in millis
*/
//实现函数——得到当前的秒数
public long getCurrentDateInTimeMillis() {
return mDate.getTimeInMillis();
}
@ -246,11 +285,13 @@ public class DateTimePicker extends FrameLayout {
*
* @param date The current date in millis
*/
//实现函数功能——设置当前的时间参数是date
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));
cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
}
/**
@ -262,8 +303,10 @@ public class DateTimePicker extends FrameLayout {
* @param hourOfDay The current hourOfDay
* @param minute The current minute
*/
//实现函数功能——设置当前的时间,参数是各详细的变量
public void setCurrentDate(int year, int month,
int dayOfMonth, int hourOfDay, int minute) {
int dayOfMonth, int hourOfDay, int minute) {
setCurrentYear(year);
setCurrentMonth(month);
setCurrentDay(dayOfMonth);
@ -276,6 +319,8 @@ public class DateTimePicker extends FrameLayout {
*
* @return The current year
*/
//下面是得到year、month、day等值
public int getCurrentYear() {
return mDate.get(Calendar.YEAR);
}
@ -434,7 +479,7 @@ public class DateTimePicker extends FrameLayout {
updateAmPmControl();
}
private void updateDateControl() {
private void updateDateControl() {// 对于星期几的算法
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
@ -448,7 +493,7 @@ public class DateTimePicker extends FrameLayout {
mDateSpinner.invalidate();
}
private void updateAmPmControl() {
private void updateAmPmControl() {// 对于上下午操作的算法
if (mIs24HourView) {
mAmPmSpinner.setVisibility(View.GONE);
} else {
@ -458,7 +503,7 @@ public class DateTimePicker extends FrameLayout {
}
}
private void updateHourControl() {
private void updateHourControl() {// 对与小时的算法
if (mIs24HourView) {
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW);
@ -479,7 +524,7 @@ public class DateTimePicker extends FrameLayout {
private void onDateTimeChanged() {
if (mOnDateTimeChangedListener != null) {
mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
}
}
}

@ -31,9 +31,15 @@ import android.text.format.DateUtils;
public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
//创建一个Calendar类型的变量 mDate方便时间的操作
private Calendar mDate = Calendar.getInstance();
private boolean mIs24HourView;
//声明一个时间日期滚动选择控件 mOnDateTimeSetListener
private OnDateTimeSetListener mOnDateTimeSetListener;
//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
private DateTimePicker mDateTimePicker;
public interface OnDateTimeSetListener {
@ -41,25 +47,39 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
}
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) {
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());
}
});
//得到系统时间
mDate.setTimeInMillis(date);
//将秒数设置为0
mDate.set(Calendar.SECOND, 0);
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
//设置按钮
setButton(context.getString(R.string.datetime_dialog_ok), this);
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
//时间标准化打印
set24HourView(DateFormat.is24HourFormat(this.getContext()));
updateTitle(mDate.getTimeInMillis());
}
@ -68,19 +88,23 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
mIs24HourView = is24HourView;
}
//将时间日期滚动选择控件实例化
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
mOnDateTimeSetListener = callBack;
}
//android开发中常见日期管理工具类API——DateUtils按照上下午显示时间
private void updateTitle(long date) {
int flag =
DateUtils.FORMAT_SHOW_YEAR |
DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_SHOW_TIME;
DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_SHOW_TIME;
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
}
//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
public void onClick(DialogInterface arg0, int arg1) {
if (mOnDateTimeSetListener != null) {
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());

@ -29,14 +29,21 @@ import net.micode.notes.R;
public class DropdownMenu {
private Button mButton;
//声明一个下拉菜单
private PopupMenu mPopupMenu;
private Menu mMenu;
public DropdownMenu(Context context, Button button, int menuId) {
mButton = button;
//设置这个view的背景
mButton.setBackgroundResource(R.drawable.dropdown_icon);
mPopupMenu = new PopupMenu(context, mButton);
mMenu = mPopupMenu.getMenu();
//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
mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
mButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
@ -45,16 +52,19 @@ public class DropdownMenu {
});
}
//设置菜单的监听
public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
if (mPopupMenu != null) {
mPopupMenu.setOnMenuItemClickListener(listener);
}
}
//对于菜单选项的初始化,根据索引搜索菜单需要的选项
public MenuItem findItem(int id) {
return mMenu.findItem(id);
}
//布局文件,设置标题
public void setTitle(CharSequence title) {
mButton.setText(title);
}

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