palm-pre | 易学教程

how to call web service by supplying credentials in Palm WebOS

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问题 I am able to call a web service that doesn't require server credentials. But I need to call a web service which require server credentials(username and password) for authentication. How to call this type of web services by supplying appropriate credentials using Ajax.Request or any other method in Palm WebOS. Any help would be highly appreciated. Thanks, 回答1: If you are using Basic Authentication you could try this: Using Authentication with Ajax.Request 来源： https://stackoverflow.com

How to replace image pixel in Webos Palm js

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问题 I want to replace image pixel color with other color in webos. so can any one suggest how i do this. Thanks 回答1: This can be done by using the HTML5 canvas API. Create a canvas the size of the image, and then draw the image into the canvas. Get the image data, and manipulate away! var canvas = document.getElementById(canvasID); var context = canvas.getContext('2d'); var image = context.getImageData(0,0,canvas.width,canvas.height); image is now an imageData object, which contains an array data

How to use jquery in palm mojo?

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问题 How do I do to be able to use jquery in my palm mojo application? 回答1: Check out this question, especially the comments. Edit in response to the comments: I don't know about Palm development so I can't help you out in detail. Mojo however is based on Prototype. Prototype and JQuery crash because they have identical function names. That's where the noConflict plugin comes in. You can read up on it here and get it here. That's about all I can tell you about it - maybe somebody else can take you

Palm Pre frameworks

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问题 I have some measure of web development experience (not my main skill, but I am pretty good with the basics) What I'm sorely lacking is knowledge of and experience with modern JS frameworks (Prototype, jQuery, YUI, whatnot). I'd like to play with them (all eventually but need to start with one). Here's the problem: I'm very interested in trying out my skills on Palm Pre eventually. To the extent that the main criteria for choosing which JS framework to learn first for me is this: Which

How to use jquery in palm mojo?

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How do I do to be able to use jquery in my palm mojo application? Pekka supports GoFundMonica Check out this question , especially the comments. Edit in response to the comments: I don't know about Palm development so I can't help you out in detail. Mojo however is based on Prototype. Prototype and JQuery crash because they have identical function names. That's where the noConflict plugin comes in. You can read up on it here and get it here . That's about all I can tell you about it - maybe somebody else can take you through the process step by step. Import Mojo Import jQuery Create a Script

Palm Pre frameworks

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I have some measure of web development experience (not my main skill, but I am pretty good with the basics) What I'm sorely lacking is knowledge of and experience with modern JS frameworks (Prototype, jQuery, YUI, whatnot). I'd like to play with them (all eventually but need to start with one). Here's the problem: I'm very interested in trying out my skills on Palm Pre eventually. To the extent that the main criteria for choosing which JS framework to learn first for me is this: Which mainstream modern JS framework is the most useful to learn if the main criteria is "knowing this will help me