//初始化 UITextView *textView = [[[UITextView alloc] init]; //字体大小 textView.font = [UIFont systemFontOfSize:16]; //设置代理 需在interface中声明UITextViewDelegate textView.delegate = self; //能否编辑 textView.editable = Yes ; //添加滚动区域 textView.contentInset = UIEdgeInsetsMake(-11, -6, 0, 0); //高度自适应 textView.autoresizingMask =UIViewAutoresizingFlexibleHeight; //是否可以滚动 textView.scrollEnabled = NO; //获得焦点 [textView becomeFirstResponder]; [self.view addSubview:textView];
|
|
//返回键的类型 textView.returnKeyType = UIReturnKeyDefault; //键盘类型 textView.keyboardType = UIKeyboardTypeDefault;
//定义一个toolBar
UIToolbar * topView = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 30)];
//设置style
[topView setBarStyle:UIBarStyleBlack];
//定义两个flexibleSpace的button，放在toolBar上，这样完成按钮就会在最右边
UIBarButtonItem * button1 =[[UIBarButtonItem alloc]initWithBarButtonSystemItem: UIBarButtonSystemItemFlexibleSpace target:self action:nil];
UIBarButtonItem * button2 = [[UIBarButtonItem alloc]initWithBarButtonSystemItem: UIBarButtonSystemItemFlexibleSpace target:self action:nil];
//定义完成按钮
UIBarButtonItem * doneButton = [[UIBarButtonItem alloc]initWithTitle:@"完成"style:UIBarButtonItemStyleDone target:self action:@selector(resignKeyboard)];
//在toolBar上加上这些按钮
NSArray * buttonsArray = [NSArray arrayWithObjects:button1,button2,doneButton,nil];
[topView setItems:buttonsArray];
[textView setInputAccessoryView:topView];
//隐藏键盘
- (void)resignKeyboard {
[textView resignFirstResponder];
}
②用回车键，前提是你的textView中不需要用到回车键
|
|
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
[textView resignFirstResponder]; returnNO;
}
returnYES;
}
③触摸空白处隐藏键盘
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
//隐藏键盘
[textView resignFirstResponder];
}
设置textView圆角
|
|
//设置textView圆角 self.textView.layer.CornerRadius:10; self.textView.layer.masksToBounds = YES;
①、在viewWillAppear中添加键盘监听事件 (也可以在textViewShouldBeginEditing:(UITextView *)textView 和 textViewShouldEndEditing代理方法中进行相应的设置)
//添加键盘的监听事件
//注册通知,监听键盘弹出事件
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];
//注册通知,监听键盘消失事件
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidHidden) name:UIKeyboardDidHideNotification object:nil];
②、完成①selector中键盘弹出keyboardDidShow:和消失keyboardDidHidden方法
在.m文件#import后面添加
//动画时间 #define kAnimationDuration 0.2 //view高度 #define kViewHeight 56键盘出现
// 键盘弹出时
-(void)keyboardDidShow:(NSNotification *)notification
{
//获取键盘高度
NSValue *keyboardObject = [[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect;
[keyboardObject getValue:&keyboardRect];
//调整放置有textView的view的位置
//设置动画
[UIView beginAnimations:nil context:nil];
//定义动画时间
[UIView setAnimationDuration:kAnimationDuration];
//设置view的frame，往上平移
[(UIView *)[self.view viewWithTag:1000] setFrame:CGRectMake(0, self.view.frame.size.height-keyboardRect.size.height-kViewHeight, 320, kViewHeight)];
[UIView commitAnimations];
}
</pre><pre name="code" class="objc" style="color: rgb(51, 51, 51); font-size: 14px; font-weight: bold;">键盘消失
//键盘消失时
-(void)keyboardDidHidden
{ //定义动画
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:kAnimationDuration];
//设置view的frame，往下平移
[(UIView *)[self.view viewWithTag:1000] setFrame:CGRectMake(0, self.view.frame.size.height-kViewHeight, 320, kViewHeight)];
[UIView commitAnimations];
}
效果图： 
PS：有网友遇到textView在ios7上出现编辑进入最后一行时光标消失，看不到最后一行，变成盲打，stackOverFlow网站上有大神指出，是ios7本身bug，加上下面一段代码即可（网友调试得出，在此mark一下，有问题，欢迎大神们指出）
-(void)textViewDidChange:(UITextView *)textView {
CGRect line = [textView caretRectForPosition:
textView.selectedTextRange.start];
CGFloat overflow = line.origin.y + line.size.height
- ( textView.contentOffset.y + textView.bounds.size.height
- textView.contentInset.bottom - textView.contentInset.top );
if( overflow > 0 ) {
// We are at the bottom of the visible text and introduced a line feed, scroll down (iOS 7 does not do it)
// Scroll caret to visible area
CGPoint offset = textView.contentOffset;
offset.y += overflow + 7; // leave 7 pixels margin
// Cannot animate with setContentOffset:animated: or caret will not appear
[UIView animateWithDuration:.2 animations:^{
[textView setContentOffset:offset];
}];
}
}