Add one more parameter(keyboardType) to AlertIOS.promot().

Summary:
Add one more parameter which can specify the keyboard type of first text input(if exists) to AlertIOS.prompt().

Example usage:
`AlertIOS.prompt('Type a phone number', null, null, 'plain-text', undefined, 'phone-pad')`
Closes #8781

Differential Revision: D4437900

Pulled By: hramos

fbshipit-source-id: 8141cc0d7c70d13603cd5a1d5ea3f1ab1ce437a6

Examples/UIExplorer/js/AlertIOSExample.js

@@ -144,6 +144,17 @@ class PromptOptions extends React.Component {
           </View>
         </TouchableHighlight>
 
+        <TouchableHighlight
+          style={styles.wrapper}
+          onPress={() => AlertIOS.prompt('Type a phone number', null, null, 'plain-text', undefined, 'phone-pad')}>
+
+          <View style={styles.button}>
+            <Text>
+              prompt with title & custom keyboard
+            </Text>
+          </View>
+        </TouchableHighlight>
+
         <TouchableHighlight
           style={styles.wrapper}
           onPress={() => AlertIOS.prompt('Type a value', null, this.saveResponse, undefined, 'Default value')}>

Libraries/Alert/AlertIOS.js

@@ -164,6 +164,10 @@ class AlertIOS {
    * @param type This configures the text input. One of 'plain-text',
    *    'secure-text' or 'login-password'.
    * @param defaultValue The default text in text input.
+   * @param keyboardType The keyboard type of first text field(if exists).
+   *    One of 'default', 'email-address', 'numeric', 'phone-pad',
+   *    'ascii-capable', 'numbers-and-punctuation', 'url', 'number-pad',
+   *    'name-phone-pad', 'decimal-pad', 'twitter' or 'web-search'.
    *
    * @example <caption>Example with custom buttons</caption>
    *
@@ -193,13 +197,14 @@ class AlertIOS {
     callbackOrButtons?: ?((text: string) => void) | ButtonsArray,
     type?: ?AlertType = 'plain-text',
     defaultValue?: string,
+    keyboardType?: string
   ): void {
     if (typeof type === 'function') {
       console.warn(
         'You passed a callback function as the "type" argument to AlertIOS.prompt(). React Native is ' +
         'assuming  you want to use the deprecated AlertIOS.prompt(title, defaultValue, buttons, callback) ' +
-        'signature. The current signature is AlertIOS.prompt(title, message, callbackOrButtons, type, defaultValue) ' +
-        'and the old syntax will be removed in a future version.');
+        'signature. The current signature is AlertIOS.prompt(title, message, callbackOrButtons, type, defaultValue, ' +
+        'keyboardType) and the old syntax will be removed in a future version.');
 
       var callback = type;
       var defaultValue = message;
@@ -244,6 +249,7 @@ class AlertIOS {
       defaultValue,
       cancelButtonKey,
       destructiveButtonKey,
+      keyboardType,
     }, (id, value) => {
       var cb = callbacks[id];
       cb && cb(value);

React/Modules/RCTAlertManager.m

@@ -72,6 +72,7 @@ - (void)invalidate
   NSString *defaultValue = [RCTConvert NSString:args[@"defaultValue"]];
   NSString *cancelButtonKey = [RCTConvert NSString:args[@"cancelButtonKey"]];
   NSString *destructiveButtonKey = [RCTConvert NSString:args[@"destructiveButtonKey"]];
+  UIKeyboardType keyboardType = [RCTConvert UIKeyboardType:args[@"keyboardType"]];
 
   if (!title && !message) {
     RCTLogError(@"Must specify either an alert title, or message, or both");
@@ -106,6 +107,7 @@ - (void)invalidate
       [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
         textField.secureTextEntry = NO;
         textField.text = defaultValue;
+        textField.keyboardType = keyboardType;
       }];
       break;
     }
@@ -114,13 +116,15 @@ - (void)invalidate
         textField.placeholder = RCTUIKitLocalizedString(@"Password");
         textField.secureTextEntry = YES;
         textField.text = defaultValue;
+        textField.keyboardType = keyboardType;
       }];
       break;
     }
     case RCTAlertViewStyleLoginAndPasswordInput: {
       [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
         textField.placeholder = RCTUIKitLocalizedString(@"Login");
         textField.text = defaultValue;
+        textField.keyboardType = keyboardType;
       }];
       [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
         textField.placeholder = RCTUIKitLocalizedString(@"Password");