成品app直播源码，iOS键盘弹出遮挡输入框

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成品app直播源码，iOS键盘弹出遮挡输入框解决的相关代码

	self.phoneInput = [UITextField new];
    self.phoneInput.placeholder = @"请输入...";
    [self.view addSubview:self.phoneInput];


///键盘弹出 处理遮挡问题
- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillHide:)
                                                 name:UIKeyboardWillHideNotification
                                               object:nil];
}
- (void)keyboardWillShow:(NSNotification *)notification
{
  //获取处于焦点中的view
  NSArray *textFields = @[self.phoneInput];
  UIView *focusView = nil;
  for (UITextField *view in textFields) {
    if ([view isFirstResponder]) {
      focusView = view;
      break;
    }
  }
  if (focusView) {
     //获取键盘弹出的时间
     double duration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
     //获取键盘上端Y坐标
     CGFloat keyboardY = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue].origin.y;
     //获取输入框下端相对于window的Y坐标
     CGRect rect = [focusView convertRect:focusView.bounds toView:[[[UIApplication sharedApplication] delegate] window]];
     CGPoint tmp = rect.origin;
     CGFloat inputBoxY = tmp.y + focusView.frame.size.height;
     //计算二者差值
     CGFloat ty = keyboardY- inputBoxY;
     NSLog(@"position keyboard: %f, inputbox: %f, ty: %f", keyboardY, inputBoxY, ty);
     //差值小于0，做平移变换
     [UIView animateWithDuration:duration animations:^{
       if (ty < 0) {
          self.view.transform = CGAffineTransformMakeTranslation(0, ty);
       }
     }];
   }
}

- (void)keyboardWillHide:(NSNotification *)notification
{
  //获取键盘弹出的时间
  double duration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
  //还原
  [UIView animateWithDuration:duration animations:^{
     self.view.transform = CGAffineTransformMakeTranslation(0, 0);
  }];
}
///<UITextFieldDelegate>
///UITextFieldDelegate编辑完成，视图恢复原状
-(void)textFieldDidEndEditing:(UITextField *)textField
{
     self.view.frame =CGRectMake(0, 0,  [[UIScreen mainScreen] bounds].size.width,[[UIScreen mainScreen] bounds].size.height);
}

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