iOS_UITextField 基本操作

iOS_UITextField 基本操作
基本操作

UITextField *userNameTextField = [[UITextField alloc] init];    userNameTextField.frame = CGRectMake(30, 100, 220, 50);    [self.window addSubview:userNameTextField];    [userNameTextField release];    // 設定樣式    userNameTextField.borderStyle = UITextBorderStyleRoundedRect;    userNameTextField.placeholder = @"Enter your name";    userNameTextField.text = @"OUTLAN";    userNameTextField.clearButtonMode = UITextFieldViewModeWhileEditing; // 設定右邊刪除按鈕出現時間    UILabel *leftLable = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];    leftLable.text = @"N";    // 設定左右視圖的顯示時間    userNameTextField.leftView = leftLable;    userNameTextField.leftViewMode = UITextFieldViewModeAlways;    [leftLable release];    userNameTextField.enabled = YES; // 設定是否允許輸入    userNameTextField.clearsOnBeginEditing = NO; // 輸入時清空    userNameTextField.secureTextEntry = NO; // 呈現圓點，一般用於輸入密碼    userNameTextField.keyboardAppearance = UIKeyboardAppearanceDark; // 修飾鍵盤顏色為黑    userNameTextField.keyboardType = UIKeyboardTypeEmailAddress; // 設定鍵盤樣式    userNameTextField.returnKeyType = UIReturnKeySearch; // 設定return按鍵的樣式    UIView *keyBoard = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 300)];    keyBoard.backgroundColor = [UIColor greenColor];//    userNameTextField.inputView = keyBoard; // 替換鍵盤    [keyBoard release];    UIView *inputAccessView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 20)];    inputAccessView.backgroundColor = [UIColor yellowColor];    userNameTextField.inputAccessoryView = inputAccessView; // 輔助條    [inputAccessView release];

收回鍵盤設定代理對象，通常為self

// 設定代理    textFiled.delegate = self;

當前類遵守協議

@interface AppDelegate : UIResponder 

實現協議方法

  - (BOOL)textFieldShouldReturn:(UITextField *)textField{    NSLog(@"點擊了Return");    [textField resignFirstResponder]; // 放棄第一響應者 收回鍵盤    return YES;}- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{    NSLog(@"begining");    return YES;}- (BOOL)textFieldShouldEndEditing:(UITextField *)textField{    NSLog(@"ending");    return YES;}