application slow on iphone with phonegap [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that i开发者_如何转开发t can be reopened, visit the help center. Closed 11 years ago.

We testing our app on simulater is fast but slow on iphone. We are initializing canvas for drawing and try to draw multiple line on the canvas is very slow.

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The simulator runs using the full power of the machine it is running on, it is not an emulator. That's why you can't trust it all the way through a project - every app must be test run on an actual device.

Although this isn't what you have asked for: Don't use phonegap. Please. It employs web technology to make development easier, but web technology is just not as performant as a native application would be. If you need to do extensive graphics operations, consider developing a native app.

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Aside from not actually asking a question, you need to consider that the iphone has a much slower processor than what ever you're running the simulator on.