Question

我在UITextfields中有三个UIAlertView，同时点击一个UITextfield并尝试点击其他不选择并创建问题，也就是辞职第一响应者的问题，是吗在UITextfield

中使用UIAlertView并不是一个好选择

- (IBAction)heightMethod:(id)sender
{
    self.centimeterTextField = [[UITextField alloc] initWithFrame:CGRectMake(12.0, 45.0, 260.0, 25.0)];
    centimeterTextField.placeholder = @"  Centimeters";
    self.centimeterTextField.delegate=self;
    self.centimeterTextField.tag=3;

   [ self.centimeterTextField setBackgroundColor:[UIColor whiteColor]];

   [self.alertHeight addSubview: self.centimeterTextField];

    self.ptextfield = [[UITextField alloc] initWithFrame:CGRectMake(40, 80.0, 80, 25.0)]; ptextfield.placeholder = @"   Feet";

    self.ptextfield.delegate=self;

    self.ptextfield.tag=4;

    [self.ptextfield setBackgroundColor:[UIColor whiteColor]];
    [self.alertHeight addSubview:self.ptextfield];
    self.ptextfieldInches = [[UITextField alloc] initWithFrame:CGRectMake(140, 80.0, 80, 25.0)]; ptextfieldInches.placeholder = @"   Inches";
    self.ptextfieldInches.delegate=self;
    self.ptextfieldInches.tag=5;

  [ptextfieldInches setBackgroundColor:[UIColor whiteColor]];

    [self.alertHeight addSubview:ptextfieldInches];

   [self.centimeterTextField setKeyboardType:UIKeyboardTypeDecimalPad];

    [self.ptextfieldInches setKeyboardType:UIKeyboardTypeDecimalPad];

    [self.ptextfield setKeyboardType:UIKeyboardTypeDecimalPad];

     self.alertHeight.tag=1;

   [self.alertHeight show];  
}

Answer 1

- (void) presentSheet {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle: @"Enter Information"
message:@"Specify the Name and URL" delegate:self cancelButtonTitle:@"Cancel"otherButtonTitles:@"OK", nil];

[alert addTextFieldWithValue:@"" label:@"Enter Name"]; 
[alert addTextFieldWithValue:@"http://" label:@"Enter URL"];

UITextField *tf = [alert textFieldAtIndex:0];
 tf.clearButtonMode = UITextFieldViewModeWhileEditing;
 tf.keyboardType = UIKeyboardTypeAlphabet; 
 tf.keyboardAppearance = UIKeyboardAppearanceAlert;

 tf.autocapitalizationType = UITextAutocapitalizationTypeWords;
 tf.autocorrectionType = UITextAutocorrectionTypeNo;
// URL field
 tf = [alert textFieldAtIndex:1];
tf.clearButtonMode = UITextFieldViewModeWhileEditing; tf.keyboardType =  UIKeyboardTypeURL;
tf.keyboardAppearance = UIKeyboardAppearanceAlert; tf.autocapitalizationType =  UITextAutocapitalizationTypeNone; tf.autocorrectionType = UITextAutocorrectionTypeNo;
[alert show]; 
}

Answer 2

您现在可以使用样式创建UIAlertView。

UIAlertView现在有一个属性 - alertViewStyle，你可以将其设置为其中一个枚举值

<强> 1。 UIAlertViewStyleDefault

<强> 2。 UIAlertViewStyleSecureTextInput

第3。 UIAlertViewStylePlainTextInput

<强> 4。 UIAlertViewStyleLoginAndPasswordInput

创建警报视图后，将其设置为样式并显示它。在解除警报后，您可以使用警报视图的textFieldAtIndex属性访问字段的内容。

或者你也可以使用这个。，

IAlertView* dialog = [[UIAlertView alloc] init]; [dialog setDelegate:self]; [dialog setTitle:@"Enter Name"]; [dialog setMessage:@" "]; [dialog addButtonWithTitle:@"Cancel"]; [dialog addButtonWithTitle:@"OK"]; UITextField *nameField = [[UITextField alloc] initWithFrame:CGRectMake(20.0, 45.0, 245.0, 25.0)]; [nameField setBackgroundColor:[UIColor whiteColor]]; [dialog addSubview:nameField]; CGAffineTransform moveUp = CGAffineTransformMakeTranslation(0.0, 70.0); [dialog setTransform: moveUp]; [dialog show]; [dialog release]; [nameField release];

希望这些信息有所帮助。谢谢。

选择iOS的UIAlertView中的UitextFields

2 个答案: