iOS-UIAlertController簡易封裝

iOS-UIAlertController簡易封裝

//提醒框封裝方法-(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 - 網路請求-(void)getResult{    //保證輸入框不為空白    if (self.sourceFD.text.length == 0) {        [self showAlertControllerWithMessage:@"請選擇源幣種"];        return;    }else if (self.targetFD.text.length == 0){        [self showAlertControllerWithMessage:@"請選擇目標幣種"];        return;    }else if (self.amountFD.text.length == 0){        [self showAlertControllerWithMessage:@"請選擇兌換金額"];        return;    }    //...在保證輸入框都不為空白的前提下進行網路請求}