iOS-UIAlertController简易封装

//提醒框封装方法
-(void)showAlertControllerWithMessage:(NSString *)message{
UIAlertController *remindAV = [UIAlertController alertControllerWithTitle:@"提示" message:message preferredStyle:UIAlertControllerStyleAlert];
[remindAV addAction:[UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDefault handler:nil]];
[self presentViewController:remindAV animated:YES completion:nil];
}
#pragma mark - 网络请求
-(void)getResult{
//保证输入框不为空
if (self.sourceFD.text.length == 0) {
[self showAlertControllerWithMessage:@"请选择源币种"];
return;
}else if (self.targetFD.text.length == 0){
[self showAlertControllerWithMessage:@"请选择目标币种"];
return;
}else if (self.amountFD.text.length == 0){
[self showAlertControllerWithMessage:@"请选择兑换金额"];
return;
}
//...在保证输入框都不为空的前提下进行网络请求

}