［ios］利用alertView 插入数据都数据库。笔记

利用alertView 插入数据都数据库

-(void)addItemToList

{

UIAlertView *alter=[[UIAlertViewalloc]initWithTitle:@"ADD"message:@"please       input"delegate:selfcancelButtonTitle:@"cancel"otherButtonTitles:@"sure", nil];

alter.alertViewStyle=UIAlertViewStylePlainTextInput;

[alter show];

}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

NSString* chooseTitle = [alertView buttonTitleAtIndex:buttonIndex];

if([chooseTitle isEqualToString:@"cancel"])

{

return;

}

else{

NSString *str=[[alertView textFieldAtIndex:0] text];

if (str.length == 0) {

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"

message:@"请输入name"

delegate:nil

cancelButtonTitle:@"好"

otherButtonTitles:nil];

[alert show];

return;

}

//数据库插入

//调用封装好的数据库插入函数

if ([dbexecuteUpdate:@"INSERT INTO ClassList(ClassName) VALUES(?)",str])

{

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"

message:@"插入数据成功"

delegate:nil

cancelButtonTitle:@"好"

otherButtonTitles:nil];

[alert show];

[self.classNameItems removeAllObjects];

//从ClassList表取得数据

FMResultSet *classInfo=[dbexecuteQuery:@"SELECT ClassName FROM ClassList"];

while ([classInfo next]) {

[self.classNameItems addObject:[classInfo stringForColumn:@"ClassName"]];

}

[self.tableViewList reloadData];

}

else {

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"

message:@"插入数据失败"

delegate:nil

cancelButtonTitle:@"好"

otherButtonTitles:nil];

[alert show];

}

}

}