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/**
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* 便签列表活动，用于展示和管理便签列表。
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*/
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public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
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// 定义查询令牌
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private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
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private static final int FOLDER_LIST_QUERY_TOKEN = 1;
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// 定义菜单项ID
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private static final int MENU_FOLDER_DELETE = 0;
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private static final int MENU_FOLDER_VIEW = 1;
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private static final int MENU_FOLDER_CHANGE_NAME = 2;
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// 定义偏好设置键
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private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction";
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// 枚举，表示当前列表的编辑状态
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private enum ListEditState {
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NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER
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};
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// 类成员变量
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private ListEditState mState;
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private BackgroundQueryHandler mBackgroundQueryHandler;
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private NotesListAdapter mNotesListAdapter;
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private ListView mNotesListView;
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private Button mAddNewNote;
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private boolean mDispatch;
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private int mOriginY;
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private int mDispatchY;
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private TextView mTitleBar;
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private long mCurrentFolderId;
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private ContentResolver mContentResolver;
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private ModeCallback mModeCallBack;
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private static final String TAG = "NotesListActivity";
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private NoteItemData mFocusNoteDataItem;
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// onCreate方法，活动创建时调用
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.note_list);
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initResources();
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setAppInfoFromRawRes();
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}
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// 初始化资源
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private void initResources() {
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// 初始化代码...
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}
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// 从raw资源文件中设置应用信息
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private void setAppInfoFromRawRes() {
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// 读取介绍信息并显示
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}
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// onStart方法，活动启动时调用
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@Override
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protected void onStart() {
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super.onStart();
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startAsyncNotesListQuery();
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}
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// 启动异步查询便签列表
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private void startAsyncNotesListQuery() {
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// 查询代码...
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}
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// 异步查询处理器
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private final class BackgroundQueryHandler extends AsyncQueryHandler {
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// 构造函数和onQueryComplete方法...
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}
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// 显示文件夹列表菜单
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private void showFolderListMenu(Cursor cursor) {
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// 显示文件夹列表菜单代码...
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}
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// 创建新便签
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private void createNewNote() {
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// 创建新便签代码...
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}
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// 批量删除便签
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private void batchDelete() {
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// 批量删除便签代码...
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}
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// 删除文件夹
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private void deleteFolder(long folderId) {
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// 删除文件夹代码...
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}
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// 打开节点（便签或文件夹）
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private void openNode(NoteItemData data) {
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// 打开便签节点代码...
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}
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// 打开文件夹
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private void openFolder(NoteItemData data) {
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// 打开文件夹代码...
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}
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// onClick方法，处理点击事件
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public void onClick(View v) {
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// 处理点击事件代码...
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}
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// 其他方法，包括处理选项菜单、上下文菜单、搜索请求等...
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} |
