G1 x Android Emulator

G1 x Android Emulator

Postby andreleitao » Thu Mar 12, 2009 6:11 pm

How reliable is the Android emulator if it's compared with G1 phone? I mean, the default Android emulator (with no configuration changes) is slower or faster than G1?

Thanks :)
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Postby MrSnowflake » Thu Mar 12, 2009 8:36 pm

That's hard to answer, on most systems the emulator will probably be slower, except maybe OpenGL which might be faster on computer. But don't rely on the emulator for any speed references, as any device will always be different.

Also, the G1 is a relatively high end device and other Android devcies might be faster or slower.
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Postby andreleitao » Thu Mar 12, 2009 9:13 pm

thanks :)
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devPhone hardware

Postby PI9 » Wed Apr 29, 2009 10:14 am

Hello,

I'm working on the devPhone for an Android project. I'm trying to implement ,on this new OS, the functions of my current phone (call transfert by "Dual Tone Multi-Frequency") and I need my phone to decode the DTMF tones send by a switchboard.
Therefore,I'd like to have acces to the audio canal in order to get those tones. Could someone tell me if it is possible?
Is there a DTMF decoder or a DSP in the devPhone/G1 which would be accessible with an application ?

Thanks in advance
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Re: G1 x Android Emulator

Postby Openxcell » Mon Mar 28, 2011 2:20 pm

andreleitao wrote:How reliable is the Android emulator if it's compared with G1 phone? I mean, the default Android emulator (with no configuration changes) is slower or faster than G1?

Thanks :)


It's really very difficult to answer this, it all depends on what you are using.
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Re: G1 x Android Emulator

Postby alisa189 » Thu Apr 14, 2011 10:43 am

The emulator is a piece of software (qemu) that is able to run arm instructions on a developer machine using emulation. This means that the emulator will run an android platform similar to what is running on a physical device. This setup is better than using a simulator where the platform is compiled for the development machine and not for the target hardware. There is however a number of limitations such as

* peripheral support - a mobile platform includes a number of companion chips such as bluetooth, wlan, gps, radio access, graphics acceleration etc. All of these are interacting with the main CPU in ways that are not predictable and hard to simulate on the emulator. Some are supported in a limited way such as internet access while others are not supported at all such as bluetooth.
* performance - the emulator is not a real processor and may not use physical accelerators available on an actual device. It also uses the host machine hardware for a lot of things meaning that memory access and similar items behave differently compared with testing on an actual device.

The general rule is that if it is possible try to do as much testing as possible on a device to avoid surprises in the end. The emulator is good for things such as testing general functionality, initial testing to avoid obvious bugs and checking that layouts and UI look decent at different screen sizes. When it comes to any performance critical testing or behaviour when interacting with the outside world, such as network interaction, the emulator is not recommended. It may tell you that your application has serious issues but do not trust "good enough" on the emulator to be good enough for the real world.
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Re: G1 x Android Emulator

Postby sirena.alex » Fri Apr 15, 2011 6:52 am

In my personel experience i would say that real devises are faster and better then emulator, it would depend upon other factors also like no of applications install device etc.
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Re: G1 x Android Emulator

Postby davidbw » Mon Apr 18, 2011 10:00 am

On a good machine it takes about 35 secs to start the emulator and activity from Eclipse IDE. It is most likely faster than an actual device.
Regards,
David from Android Development Company
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Re: G1 x Android Emulator

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