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/*
 *  键盘即将退下
 */
-(void)keyboardWillHide{

    //执行动画
    [UIView animateWithDuration:_time animations:^{

        //曲线
        [UIView setAnimationCurve:_curve];

        _bottomView.transform=CGAffineTransformIdentity;
    }];
}



- (IBAction)switchBtnClick:(id)sender {

    [self.textView resignFirstResponder];

    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(.15f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        self.textView.inputView=self.textView.inputView?nil:self.emotionView;
        [self.textView becomeFirstResponder];
    });
}



-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{

    [self.view endEditing:YES];
}