UITextFiled键盘弹出前做ASI请求并且弹出自定view

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.H里面定义的@property(nonatomic,strong)UITextField *publicFiled;

@property(nonatomic,strong)UIView *typePickerView;

.M文件里

#pragma mark - UITextFieldDelegate

- (void)textFieldDidBeginEditing:(UITextField *)textField{

self.publicFiled=textField;

self.publicFiled.inputView=self.typePickerView;

}

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
    if (self.outPatientList.count==0&&!self.typePickerView) {
        self.publicFiled=textField;
        [self listDataSource:[NSNumber numberWithInt:TAG_FOURTY_NINE] ];//自定义了一个方法用不请求网络数据的
        return NO;

    }
    return YES;
}

//异步请求委托
- (void)requestFinished:(ASIHTTPRequest *)request

switch (request.tag) {
case TAG_FOURTY_NINE:

{

self.outPatientList=[rotdic objectForKeyedSubscript:@"recordList"];
self.typePickerView=(UIView *)([[NSBundle mainBundle]loadNibNamed:@"OutPatientType" owner:self options:nil][0]);//此处的@"OutPatientType"是我定义好的一个view.xib

                 UIPickerView *typePKV=(UIPickerView *)[self.typePickerView viewWithTag:1];
                     typePKV.delegate=self;
               [self.publicFiled becomeFirstResponder];

}

break;

default:

                break;
        }



}

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