【代码笔记】点评内容

一，效果图。

二，工程图。

三，代码。

ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UITextViewDelegate> { //评论内容
    UITextView *commentTextView; } @end

 

ViewController.m

#import "ViewController.h"

@interface ViewController () @end

@implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. //初始化点评内容
 [self addCommentView]; } #pragma -mark -functions
//初始化点评内容
-(void)addCommentView { //点评内容
    commentTextView=[[UITextView alloc]initWithFrame:CGRectMake(50, 180, 300, 90)]; commentTextView.text=@"亲，您对商户感觉如何，环境怎样，服务态度如何。(500字符内)"; commentTextView.font=[UIFont systemFontOfSize:14]; commentTextView.backgroundColor=[UIColor redColor]; commentTextView.delegate=self; [self.view addSubview:commentTextView]; } #pragma mark - UITextView Delegate Methods

-(BOOL)textViewShouldBeginEditing:(UITextView *)textView { if ([textView.text isEqualToString:@"亲，您对商户感觉如何，环境怎样，服务态度如何。(500字符内)"]) { textView.text=@""; } return YES; } -(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text { if ([text isEqualToString:@"\n"]) { [textView resignFirstResponder]; return NO; } return YES; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.
}