【代码笔记】判断textField里面是否有空

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

//TextField
UITextField *textField=[[UITextField alloc]initWithFrame:CGRectMake(20, 100, 100, 200)];
textField.backgroundColor=[UIColor redColor];
textField.text=@"123";
[self.view addSubview:textField];

NSLog(@"判断textField里面是否为空%i",[self textFieldIsNOTEmpt:textField]);

}

//判断textField里面是否有空
-(BOOL)textFieldIsNOTEmpt:(UITextField *)textField{
if ([textField.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]].length!=0){
return YES;
}else {
return NO;
}
}