diff --git a/MiNote/doc/孙祖凯-2023317168-小米便签泛读报告.docx b/MiNote/doc/孙祖凯-2023317168-小米便签泛读报告.docx deleted file mode 100644 index 5c3449e..0000000 Binary files a/MiNote/doc/孙祖凯-2023317168-小米便签泛读报告.docx and /dev/null differ diff --git a/MiNote/doc/小米便签开源代码的泛读报告 - 模板.docx b/MiNote/doc/小米便签开源代码的泛读报告 - 模板.docx deleted file mode 100644 index 6641a68..0000000 Binary files a/MiNote/doc/小米便签开源代码的泛读报告 - 模板.docx and /dev/null differ diff --git a/MiNote/src/net/micode/notes/ui/AlarmAlertActivity.java b/MiNote/src/net/micode/notes/ui/AlarmAlertActivity.java index 85723be..e380a62 100644 --- a/MiNote/src/net/micode/notes/ui/AlarmAlertActivity.java +++ b/MiNote/src/net/micode/notes/ui/AlarmAlertActivity.java @@ -39,8 +39,9 @@ import net.micode.notes.tool.DataUtils; import java.io.IOException; - 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 long mNoteId; private String mSnippet; private static final int SNIPPET_PREW_MAX_LEN = 60; @@ -49,48 +50,83 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD @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 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; } + /* + try + { + // 代码区 + } + catch(Exception e) + { + // 异常处理 + } + 代码区如果有错误，就会返回所写异常的处理。*/ + /* + try + { + // 代码区 + } + catch(Exception e) + { + // 异常处理 + } + 代码区如果有错误，就会返回所写异常的处理。*/ 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 } } 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); @@ -101,12 +137,19 @@ 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(); @@ -121,38 +164,62 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD private void showActionDialog() { AlertDialog.Builder dialog = new AlertDialog.Builder(this); + //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 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); } 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key；mNoteId为键 startActivity(intent); + //开始动作 break; default: + //这是确定操作 break; } } public void onDismiss(DialogInterface dialog) { + //忽略 + stopAlarmSound(); + //停止闹钟声音 + finish(); + //完成该动作 stopAlarmSound(); finish(); } private void stopAlarmSound() { if (mPlayer != null) { + mPlayer.stop(); + //停止播放 + mPlayer.release(); + //释放MediaPlayer对象 mPlayer.stop(); mPlayer.release(); mPlayer = null; } } -} +} \ No newline at end of file diff --git a/MiNote/src/net/micode/notes/ui/AlarmInitReceiver.java b/MiNote/src/net/micode/notes/ui/AlarmInitReceiver.java index f221202..044ac31 100644 --- a/MiNote/src/net/micode/notes/ui/AlarmInitReceiver.java +++ b/MiNote/src/net/micode/notes/ui/AlarmInitReceiver.java @@ -28,6 +28,78 @@ 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 + }; + //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) }, + //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 { + 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(); + } + //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 + } +} +/* + * 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 [] { diff --git a/MiNote/src/net/micode/notes/ui/AlarmReceiver.java b/MiNote/src/net/micode/notes/ui/AlarmReceiver.java index 54e503b..f1b0064 100644 --- a/MiNote/src/net/micode/notes/ui/AlarmReceiver.java +++ b/MiNote/src/net/micode/notes/ui/AlarmReceiver.java @@ -28,3 +28,4 @@ public class AlarmReceiver extends BroadcastReceiver { context.startActivity(intent); } } + diff --git a/MiNote/src/net/micode/notes/ui/NoteEditActivity.java b/MiNote/src/net/micode/notes/ui/NoteEditActivity.java index 96a9ff8..349aff4 100644 --- a/MiNote/src/net/micode/notes/ui/NoteEditActivity.java +++ b/MiNote/src/net/micode/notes/ui/NoteEditActivity.java @@ -870,4 +870,4 @@ public class NoteEditActivity extends Activity implements OnClickListener, private void showToast(int resId, int duration) { Toast.makeText(this, resId, duration).show(); } -} +}s}