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@ -361,7 +361,7 @@ public class SqlNote {
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}
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}
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if (sqlData == null) {
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if (sqlData == null) {‘’
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sqlData = new SqlData(mContext);
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mDataList.add(sqlData);
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}
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@ -377,16 +377,19 @@ public class SqlNote {
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return true;
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}
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//函数用于获取便签的内容
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public JSONObject getContent() {
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try {
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JSONObject js = new JSONObject();
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//如果mIsCreate属性为true,表示该便签还未在数据库中创建,此时打印警告信息并返回null
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if (mIsCreate) {
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Log.e(TAG, "it seems that we haven't created this in database yet");
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return null;
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}
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JSONObject note = new JSONObject();
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//如果便签类型是笔记,将便签的各个属性添加到note对象中,然后将note对象添加到js对象中。同时创建一个名为dataArray的JSONArray数组,并遍历mDataList列表中的每个SqlData对象。对于每个SqlData对象,调用getContent获取其内容数据,并将数据对象添加到dataArray数组中。
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if (mType == Notes.TYPE_NOTE) {
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note.put(NoteColumns.ID, mId);
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note.put(NoteColumns.ALERTED_DATE, mAlertDate);
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@ -410,7 +413,7 @@ public class SqlNote {
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}
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}
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js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
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} else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
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} //如果类型是文件夹和系统,将ID、类型和摘要属性添加到note对象中,然后将note对象添加到js对象中。 else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
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note.put(NoteColumns.ID, mId);
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note.put(NoteColumns.TYPE, mType);
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note.put(NoteColumns.SNIPPET, mSnippet);
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@ -425,45 +428,56 @@ public class SqlNote {
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return null;
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}
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//函数用于给当前ID设置父ID
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public void setParentId(long id) {
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mParentId = id;
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mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
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}
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//函数用于给当前ID设置GTASK_ID,
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public void setGtaskId(String gid) {
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mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
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}
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//函数用于给当前ID设置同步ID
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public void setSyncId(long syncId) {
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mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
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}
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//函数用于初始化本地修改,即撤销所有当前修改
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public void resetLocalModified() {
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mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
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}
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//函数用于获得当前ID
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public long getId() {
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return mId;
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}
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//函数用于获得当前ID的父ID
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public long getParentId() {
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return mParentId;
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}
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//函数用于显示当前便签的摘要
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public String getSnippet() {
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return mSnippet;
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}
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//函数用于判断是否为笔记属性
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public boolean isNoteType() {
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return mType == Notes.TYPE_NOTE;
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}
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//函数用于把对当前便签所做的修改保存到数据库中
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public void commit(boolean validateVersion) {
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if (mIsCreate) {
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//如果便签的ID为无效值(INVALID_ID)且mDiffNoteValues集合中包含键为NoteColumns.ID的键值对,则将该键值对从集合中移除
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if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
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mDiffNoteValues.remove(NoteColumns.ID);
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}
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//调用ContentResolver的insert将便签的内容插入到数据库中
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Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
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try {
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mId = Long.valueOf(uri.getPathSegments().get(1));
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@ -475,12 +489,14 @@ public class SqlNote {
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throw new IllegalStateException("Create thread id failed");
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}
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//如果便签类型为笔记,则遍历mDataList列表中的每个SqlData对象,并调用commit,将对应的数据保存到数据库中
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if (mType == Notes.TYPE_NOTE) {
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for (SqlData sqlData : mDataList) {
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sqlData.commit(mId, false, -1);
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}
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}
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} else {
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//如果便签的ID无效或为根文件夹或通话记录文件夹,则抛出IllegalStateException异常,提示正在尝试使用无效ID更新笔记
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if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
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Log.e(TAG, "No such note");
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throw new IllegalStateException("Try to update note with invalid id");
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@ -488,6 +504,7 @@ public class SqlNote {
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if (mDiffNoteValues.size() > 0) {
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mVersion ++;
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int result = 0;
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//如果validateVersion值为false,则直接调用update更新内容到数据库中,否则先查询数据库中该便签的版本号,如果查询得到的版本号小于等于mVersion,则更新笔记到数据库中,否则抛出异常,提示提交失败
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if (!validateVersion) {
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result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
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+ NoteColumns.ID + "=?)", new String[] {
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@ -503,8 +520,9 @@ public class SqlNote {
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if (result == 0) {
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Log.w(TAG, "there is no update. maybe user updates note when syncing");
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}
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}
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}
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//如果便签类型为笔记,则遍历mDataList列表中的每个SqlData对象,调用commit,将对应的数据保存到数据库中
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if (mType == Notes.TYPE_NOTE) {
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for (SqlData sqlData : mDataList) {
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sqlData.commit(mId, validateVersion, mVersion);
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@ -513,10 +531,12 @@ public class SqlNote {
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}
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// refresh local info
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//调用loadFromCursor重新加载从数据库中获取的数据,并调用loadDataContent重新加载便签的附加数据,以确保对便签修改的完整性和正确性
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loadFromCursor(mId);
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if (mType == Notes.TYPE_NOTE)
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loadDataContent();
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//最后清空mDiffNoteValues集合,将mIsCreate属性设置为false,表示提交操作已完成
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mDiffNoteValues.clear();
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mIsCreate = false;
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}
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