iOS开发与TableView操作详解-优快云博客

本文深入探讨了iOS开发中TableView的使用技巧，包括点击事件处理、编辑模式激活与关闭、增加、删除、移动（排序）操作的实现，以及如何在特定情况下允许或禁止表格项的编辑。

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webView 添加点击事件：

UITapGestureRecognizer *tapGR = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(tapView:)];

tapGR.numberOfTapsRequired =2;

tapGR.delegate =self;

tapGR.cancelsTouchesInView =NO;

[_webViewaddGestureRecognizer:tapGR];

[tapGR release];

-(BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer

{

returnYES;

}

tableview

编辑（增加，删除），移动（排序）两种操作。

self.navigationItem.leftBarButtonItem = self.editButtonItem;

结合方法

- (void)setEditing:(BOOL)editing animated:(BOOL)animated

tableview 编辑，增加或者删除

// Individual rows can opt out of having the -editing property set for them. If not implemented, all rows are assumed to be editable.

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath;

// After a row has the minus or plus button invoked (based on the UITableViewCellEditingStyle for the cell), the dataSource must commit the change

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath;

/ Allows customization of the editingStyle for a particular cell located at 'indexPath'. If not implemented, all editable cells will have UITableViewCellEditingStyleDelete set for them when the table has editing property set to YES.

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath;

- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath

// Moving/reordering

// Allows the reorder accessory view to optionally be shown for a particular row. By default, the reorder control will be shown only if the datasource implements -tableView:moveRowAtIndexPath:toIndexPath:

- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath;

// Data manipulation - reorder / moving support

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath;