I have 4GB of memory ram, the android studio virtual device is showing "ANDROID", so the loading is infinite, it doesn't end, I've waited too long, what can be the problem? no matter what application I use
Did you try to use Genymotion? It's hundreds of times better than regular virtual device. Here you have a post to "how to" use it: http://tleyden.github.io/blog/2013/11/22/android-studio-plus-genymotion-emulator/
Remember to use a real phone to make some tries but Genymotion it's almost the same thing.
Hardware requisites are:
Hardware
Genymotion implies that you have the following hardware on your
computer: OpenGL 2.0 capable video card, with an up-to-date driver;
VT-x or AMD-V capable CPU, enabled in BIOS settings; RAM memory: at
least 2GB; Screen resolution greater than 1024 x 768 pixels; Free
space on hard disk: at least 100MB.
UPDATE: Bear in mind this response it's old and now Genymotion is not longer free. Using x86 emulator nowadays it's a great solution to work with.
Related
Now you can easily notice I am new on app development path when I am setting up Android studio for Android development I find that my pc need specific requirements (Hardware) to start
But I have desktop that
CPU : Core 2Duo
RAM : 4 GB
HDD : 500 GB
It's been week when I just run some basic apps but it's very headache to do it for basics app because my android studio every minute got hang and start lagging I can't open chrome there full of warehouse of my problems related to pc because of android studio
Anyone know any hacks or by tips for me you can feel free for it.
Putting it bluntly: those specs are simply not enough to do any serious modern development. If you could replacing the HDD with an SSD (even a small, cheap one) would be the highest priority and more memory is second. A better CPU would obviously help, but it's a luxury, the other two items are more important.
Assuming that's not an option, you can do either of those two things:
don't use an IDE (or at least a more light-weight one, such as VS Code) and build your software from the command line. This will be more painful (especially when you're just starting) and even then the resource requirements of the build will be non-trivial.
Make sure to do as little as possible on your local machine. If you have a decent internet connection, then you might be better off developing on a free remote cloud computer and use something like Projector to show the UI in the browser. I've found this repo with instructions on how to use it with Android Studio, which seems useful, but I've not verified that it works.
The only hacks I can think of are:
Make sure you are not using a remote mounted file system or "share" for either your Android Studio + Java installation or your AS workspace.
Shutoff (quit) all other applications that are using significant amounts of RAM; e.g. your web browsers, your email tool, Slack, Zoom, etc.
If you are using Windows, switch to Linux.
Better idea: get a better development machine. I think that the RAM is most important, because it sounds like your machine is thrashing.
It may seem unfair but Android Studio is not really suitable to run in a lower end device. It used to lag/hang in my device with Core i7 and 8GB Ram. The best thing you can do is to use an SSD instead of HDD. SSDs with smaller memory are often cheap and this alone can somewhat lessen your problems with Android Studio.
i think you should change your HDD to 240 GB SSD and it will works fine
I'm currently using a Samsung Galaxy A20s with a total of 2790MB ram.
the phone was originally developed for Android 9.0 Pie and it has been getting upgrades and I'm currently on Android 11 Honeycomb which is a good thing but the hardware on the phone can't keep up. my ram is always almost full and according to Droid Info app my Java Heap size is 192MB !!!. that's way too much!!
is there any way to reduce the heap size on my smartphone?
One way is you can root your smartphone and get almost full access for example remove factory installed apps, overclock your CPU, increase RAM etc. But rooting will void the warranty and also if your smartphone is uncommon, do it at your own risk !
Read more about it here
https://www.xda-developers.com/root/
does anyone knows how to simulate low ram on an android device?
I want to test my app with low RAM, but the emulator is too slow and i'd like to be able to test it on my HTC one running it only with 512 MB of ram.
Is it possible?
Thanks in advance
The android emulator can run really smooth if you have an Intel CPU on your machine. In order to use to create a smooth emulator, you'll need the following:
1 Install Intel HAXM on your computer. Available here
http://software.intel.com/en-us/articles/installation-instructions-for-intel-hardware-accelerated-execution-manager-microsoft
2 Create a new AVD in AVD Manager, and for CPU select Intel Atom (x86)
3 Make sure you check Use Host GPU option
4 Start the emulator. If everything is ok, you should see a message like this
One option would be create a non-swappable application that dynamically uses up main memory to maintain average available free memory ~= 512 Mb. By non-swappable I mean that it should not be swapped out of main memory by the kernel memory-manager at any time. In Windows this is done using a VirtualLock (http://msdn.microsoft.com/en-us/library/aa366895%28VS.85%29.aspx) that prevents a memory region from being swapped out. Not sure how this can be done in Android though...
With each SDK, I have a solution of installing MIPS system image.
What is it? What does it do and when will someone use it? What will happen if I do not install it?
What is it?
It is an emulator image that emulates a device that has a MIPS CPU, instead of an ARM or x86 CPU.
What does it do and when will someone use it?
You will use it if you wish to emulate a device that has a MIPS CPU, instead of an ARM or x86 CPU.
What will happen if I do not install it?
You will not be able to emulate a device that has a MIPS CPU, instead of an ARM or x86 CPU. The MIPS Consortium may cry. But, considering right now there are very few Android devices with MIPS CPUs on the market, not having a MIPS emulator is probably just fine.
More info on the MIPS architecture can be found here: http://www.mips.com/
According to my understanding you need the system images for MIPS and x86 only to test native code, which was developed using the "Native Development Kit" (NDK).
The x86-image can be executed with higher performance, if your CPU is offering virtualization support (e.g., Intel's VTx; AMD-V only for Linux), see this section in the official documentation. According to this discussion the emulator will write "HAX is working and emulator runs in fast virt mode" to the console if he uses the CPU's virtualization support.
However, if the emulator is running too fast, then the developer might forget that the app will also have to run with sufficient performance on a mobile device with limited resources ...
Strangely enough, updating MIPS System Image solved a build problem that I was having. After updating all components except for the MIPS System Image, all my projects failed to build with errors saying "R cannot be resolved to a variable". After updating MIPS System Image, everything builds well.
if I wanna work/test with my AVD, the Android emulator is super slow, barely usable. Im developing with eclipse and was just about testing a helloWorld app., but the whole thing runs too slow. Is it the hardware of my pc?
details:
AMD Athlon 64 3500+, 2.21 Ghz
2 GB RAM
Windows XP
I know its kinda running with coal, but actually, its just a phone emulator. What is your opinion?
I had the same problem. The emulator was slow as hell. You can significantly speed it up by changing the heap size allocated to it in AVD manager. Go to AVD Manager -> Select your device -> Click on "Details" button. The heap size will most probably be 24 or 48 (vm.heapSize: 24). Here's how you increase the heap size.
AVD Manager -> Select device -> Edit -> Hardware section (same window) -> Select "Max VM application heapsize" property -> Double click and edit the value to 512 or higher.
Restart the emulator (if already running).
It is just a very slow emulator. The best option is definately to test on a real phone.
I am using Intel Core2 Quad # 2.33HZ, 2.33Hz with 3GB of RAM. It take about 20 seconds to upload the app after making changes. You must upgrade your PC in order to test your apps on emulator. If you have android device, then good. Your PC will work fine.
Like cjk says, the emulator is incredibly slow. It fully emulates the core ARM architecture and can only be single threaded. Best you can do to help it is assign it to a lesser used core and increase the priority/niceness of the process.
I had the same type of specs on my computer while developing, indeed the emulator is too slow to work with. What is your screen resolution? In my case connecting to a monitor sped up the emulator, really lame..
My LCD's current screen resolution is 1600 * 900 and I am using Windows 7. Its working fine.
I have a macbook air (not very powerfull), the emulator was too slow. It was because the in the Emulation Options Use Host GPU was ticked. This might also help. its fine with:
Device: 3.2" QVGA
target: level 8
Memory Ram: 512
Heap: 128
Emulation options: not ticked.
hope it helps