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POProgrammatically show soft keyboard on iPhone in a PhoneGap application?
 

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  1. POProgrammatically show soft keyboard on iPhone in a PhoneGap application?
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    <p>I've been searching far and long, and to this moment, I did not come across a <strong>working solution</strong> for PhoneGap / Cordova applications that would show soft keyboard programmatically.</p> <p><strong>Scenario:</strong></p> <p>We have a PhoneGap application - a website created in jQuery Mobile - that at one point shows a dialog to the user. This dialog is also a web page and has one single INPUT text box where user should enter a code.</p> <p><strong>Problem:</strong></p> <p>When the code dialog is shown, the <strong><em>input box is focused using JavaScript</em></strong>. However, due to restrictions placed on iPhone's internal browser, the soft keyboard does not come up until the user actually really clicks inside the input text box.</p> <p><strong>What we tried:</strong></p> <ul> <li>creating a <strong><em><a href="https://stackoverflow.com/questions/467601/display-the-iphone-keyboard">hidden text box</a></em></strong> and making it <strong><em>first responder</em></strong></li> <li>making the actual <strong><em>webview a first responder</em></strong> once the input receives focus via JavaScript</li> <li>using <strong><em>sendActionsForControlEvents</em></strong> to try and delive Touch events to the webview (although if anyone has a working code for a PhoneGap application, I would appreciate if they could share it, since I'm no professional in iOS coding)</li> </ul> <p>Any ideas?</p> <hr> <p><strong>EDIT:</strong> The restriction mentioned in this question is for <strong><em>built-in browsers</em></strong> only... if you're aiming Opera, you will be successful by using the following code:</p> <pre><code>var e = jQuery.Event("keydown", { keyCode: 37 }); $('#element').focus().trigger(e); </code></pre> <hr> <p><strong>EDIT2:</strong> This is a final working PhoneGap code that can be used in a plugin: </p> <p><em>keyboardhelper.h</em></p> <pre><code>// // keyboardHelper.h // soft keyboard displaying plugin for PhoneGap // // Copyright 2012 Martin Ambrus. // #import &lt;Foundation/Foundation.h&gt; #ifdef CORDOVA_FRAMEWORK #import &lt;Cordova/CDVPlugin.h&gt; #else #import "CDVPlugin.h" #endif @interface keyboardHelper : CDVPlugin { NSString *callbackID; } @property (nonatomic, copy) NSString *callbackID; - (void)showKeyboard:(NSMutableArray*)arguments withDict:(NSMutableDictionary*)options; @end </code></pre> <p><em>keyboardhelper.m</em></p> <pre><code>// // keyboardHelper.m // soft keyboard displaying plugin for PhoneGap // // Copyright 2012 Martin Ambrus. // #import "keyboardHelper.h" #import "AppDelegate.h" @implementation keyboardHelper @synthesize callbackID; -(void)showKeyboard:(NSMutableArray*)arguments withDict:(NSMutableDictionary*)options { self.callbackID = [arguments pop]; //Get text field coordinate from webview. - You should do this after the webview gets loaded //myCustomDiv is a div in the html that contains the textField. int textFieldContainerHeightOutput = [[((AppDelegate *)[[UIApplication sharedApplication] delegate]).viewController.webView stringByEvaluatingJavaScriptFromString:@"document.getElementById(\"myCustomDiv\").offsetHeight;"] intValue]; int textFieldContainerWidthOutput = [[((AppDelegate *)[[UIApplication sharedApplication] delegate]).viewController.webView stringByEvaluatingJavaScriptFromString:@"document.getElementById(\"myCustomDiv\").offsetWidth;"] intValue]; int textFieldContainerYOffset = [[((AppDelegate *)[[UIApplication sharedApplication] delegate]).viewController.webView stringByEvaluatingJavaScriptFromString:@"document.getElementById(\"myCustomDiv\").offsetTop;"] intValue]; int textFieldContainerXOffset = [[((AppDelegate *)[[UIApplication sharedApplication] delegate]).viewController.webView stringByEvaluatingJavaScriptFromString:@"document.getElementById(\"myCustomDiv\").offsetLeft;"] intValue]; UITextField *myTextField = [[UITextField alloc] initWithFrame: CGRectMake(textFieldContainerXOffset, textFieldContainerYOffset, textFieldContainerWidthOutput, textFieldContainerHeightOutput)]; [((AppDelegate *)[[UIApplication sharedApplication] delegate]).viewController.webView addSubview:myTextField]; myTextField.delegate = self; CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString: @"ok"]; [self writeJavascript:[pluginResult toSuccessCallbackString:self.callbackID]]; } -(BOOL)textFieldShouldReturn:(UITextField *)textField { //here you create your request to the server return NO; } -(BOOL)textFieldDidEndEditing:(UITextField *)textField { //here you create your request to the server return NO; } @end </code></pre> <p><em>javascript</em></p> <pre><code>var keyboardHelper = { showKeyboard: function(types, success, fail) { return Cordova.exec(success, fail, "keyboardHelper", "showKeyboard", types); } }; </code></pre>
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      1. POProgrammatically show soft keyboard on iPhone in a PhoneGap application?
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    1. COHave you tried $("#input_id").trigger("click")? I did not yet as I am at work but that is one option more you could try.
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      1. POProgrammatically show soft keyboard on iPhone in a PhoneGap application?
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    2. COyes, we tried that... this is not a about JavaScript here, since programmatic events never trigger soft keyboard on mobile devices due to usability and performance issues... I'm looking for native iPhone code that can help out here
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      1. POProgrammatically show soft keyboard on iPhone in a PhoneGap application?
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    3. COI've updated the question to include a solution for Opera Mobile browser which doesn't seem to be affected by they keyboard restriction
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