收到意外的“ EXC_BAD_ACCESS”

问题描述

| 当我从表格视图中删除单元格时：发生此错误：

Program received signal:  “EXC_BAD_ACCESS”.
warning: Unable to read symbols for /Xcode3.2.5/Platforms/iPhoneOS.platform/DeviceSupport/4.3.2 (8H7)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).

在这里，我从单元格中删除对象，并从日历中删除其事件：

if (editingStyle == UITableViewCellEditingStyleDelete)
    {
        //Get the object to delete from the array.
        lovkid *mykids = (lovkid *)[appDelegate.actionarray1 objectAtIndex:indexPath.row];
        appDelegate.actionId = mykids.Id;

        //delete from calender
        if( [ mykids.Event isEqualToString:@\"empty\"])
        {
        }
        else
        {
            EKEvent* event2 = [appDelegate.eventStore eventWithIdentifier:mykids.Event];
            if (event2 != nil) 
            {  
                NSError* error = nil;
                [appDelegate.eventStore removeEvent:event2 span:EKSpanThisEvent error:&error];
            } 
        }

        //delete end
        [mykids deleteAction];
        [appDelegate.actionarray1 removeObjectAtIndex:indexPath.row];

        //Delete the object from the table.
        [localTable deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
        [localTable reloadData];
        a = 0;
    }
    else 
    {
        //NSLog(@\"test\");
    }

从数据库删除：

deleteStmt1 = nil;
    if(deleteStmt1 == nil) 
    {
            const char *sql = \"delete from actions where id = ?\";
            if(sqlite3_prepare_v2(database1,sql,-1,&deleteStmt1,NULL) != SQLITE_OK)
                NSAssert1(0,@\"Error while creating delete statement. \'%s\'\",sqlite3_errmsg(database1));

    //When binding parameters,index starts from 1 and not zero.
        sqlite3_bind_int(deleteStmt1,1,(int)appDelegate.actionId);

        if (SQLITE_DONE != sqlite3_step(deleteStmt1)) 
            NSAssert1(0,@\"Error while deleting. \'%s\'\",sqlite3_errmsg(database1));

        sqlite3_reset(deleteStmt1);
        sqlite3_finalize(deleteStmt1);
    }

出现此错误的原因是什么？     

解决方法

我建议删除该行：

    [localTable deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];

如果要按ѭ4重新加载表，则不必那样删除该行。该表将被重新加载以反映新的数据源状态。 另一方面，如果可以使表更平滑地刷新，则可以调查

beginUpdates

和

endUpdates

。在这种情况下，使用

deleteRowsAtIndexPaths

是有意义的。 我不知道这是否可以解决您的崩溃问题。如果没有，我建议您在调试器下执行，这样您就可以准确地找出引起崩溃的令人讨厌的语句。