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#import "ViewController.h"
@interface ViewController ()<UITextFieldDelegate>
{
 UITextField *_commentTextField;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //键盘通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWasChange:) name:UIKeyboardWillChangeFrameNotification object:nil];
    //实例化输入框
    _commentTextField = [[UITextField alloc] initWithFrame:CGRectMake(0, [UIScreen mainScreen].bounds.size.height-35, [UIScreen mainScreen].bounds.size.width, 32)];
    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector (textFieldChange:)
     name:UITextFieldTextDidChangeNotification object:_commentTextField];
    _commentTextField.borderStyle = UITextBorderStyleRoundedRect;
    _commentTextField.returnKeyType = UIReturnKeyDone;
    _commentTextField.enablesReturnKeyAutomatically = YES;
    _commentTextField.placeholder = @"请输入  王木木  点击完成";
    _commentTextField.backgroundColor = [UIColor whiteColor];
    _commentTextField.delegate = self;
    [self.view addSubview:_commentTextField];
    self.view.backgroundColor = [UIColor blueColor];
}

- (void)btn{
    NSLog(@"dsfa");
}
#pragma mark - 键盘 改变通知 弹键盘
-(void)keyboardWasChange:(NSNotification *)notification
{
    NSDictionary *info = [notification userInfo];
    if ([[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].origin.y != [UIScreen mainScreen].bounds.size.height) {
        
        _commentTextField.frame = CGRectMake(0, [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].origin.y-45, [UIScreen mainScreen].bounds.size.width, 45);
        
    }else {
        _commentTextField.frame = CGRectMake(0, [UIScreen mainScreen].bounds.size.height - 45, [UIScreen mainScreen].bounds.size.width, 45);
    }
}
//点击界面view 触发  收键盘
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    [_commentTextField resignFirstResponder];
    _commentTextField.frame = CGRectMake(0, [UIScreen mainScreen].bounds.size.height - 45, [UIScreen mainScreen].bounds.size.width, 45);
}
-(void)textFieldChange:(NSNotification *)notification
{
    UITextField *textField=[notification object];

    NSString *lang = [textField.textInputMode primaryLanguage]; // 键盘输入模式
    if ([lang isEqualToString:@"zh-Hans"]) { // 简体中文输入，包括简体拼音，健体五笔，简体手写
        UITextRange *selectedRange = [textField markedTextRange];
        //获取高亮部分
        UITextPosition *position = [textField positionFromPosition:selectedRange.start offset:0];
        // 没有高亮选择的字，则对已输入的文字进行字数统计和限制
        if (!position) {
                if ([textField.text isEqualToString:@"王木木"]) {
                    UIAlertView *ale = [[UIAlertView alloc]initWithTitle:@"我爱你" message:nil delegate:nil cancelButtonTitle:@"谢谢" otherButtonTitles: nil];
                    [ale show];
                }
        }
        
    }
    
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end