• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

Updated

Hot New

Updated

 Browse

How to find the size of an object in Java Android

1
I'm a newbie in android and python, and I'm trying to establish a TCP socket connection between my android client and a python server. Every time I swipe in my app, I send the swipe movement's direction to the server.

Java: 
//java client
           OutputStream output = client.getOutputStream();
           DataOutputStream out = new DataOutputStream(new BufferedOutputStream(output));

           byte[] msg;
           if(strings[1].equals("swipe"))
           {
               out.write(strings[1].getBytes());
               out.flush();
               //strings[0] contains the movement information in format of:
               //xmovement_ymovement
               //for example: 2.5365_8.5478
               msg = strings[0].getBytes();
               out.write(msg);
               out.flush();
           }

Code: 
#python server
   #the 1024 is a temporary number I just put in there
   #because I don't know how to find the size of the data in the java client side
   request_byte = client_socket.recv(1024)
   print("reqeust_byte size: " + str(sys.getsizeof(request_byte)))
   request = request_byte.decode()
   print("Received " + request)

   if request == "swipe":
       movement_byte = client_socket.recv(1024)
       print("movement_byte size: " + str(sys.getsizeof(movement_byte)))
       movement_str = movement_byte.decode()
       x_movement, y_movement = movement_str.split("_")
       print("x: " + x_movement)
       print("y: " + y_movement)
       swipe(float(x_movement), float(y_movement))


When a simple button press is done and a single data is sent, the code works fine, but when I swipe and a lot of data is being sent in a short amount of time to the server, the data gets mixed up and turns unpredictable.

Now, as this post https://stackoverflow.com/questions/26641840/receiving-end-of-socket-splits-data-when-printed says, I know that I need to build a protocol that delineates messages, but on the Java client side, I can't get the size of the data I'm trying to send, so I'm stuck here.

This post https://stackoverflow.com/questions...-way-to-determine-the-size-of-an-object#52682 says I can find size of objects by using java.lang.instrument package, but I can't import java.lang.instrument.Instrumentation in android studio. Is there another way to find the size of an object in android studio?
Click to expand...

How to turn your Samsung GALAXY Note10/10+ into a fully fleged console!

Today I have the solution to build the ultimate mobile console experience and before we get started here is what you will need:

Requirements:

• Android Gamepad (No PlayStation & Xbox etc Controllers as they do not work correctly with the Note 10/10+).

• Samsung GALAXY Note10/10+.

• Google Chromecast.

• USB Type-C Cable.

• Micro USB Cable (For Chromecast).

• HDTV (Supporting 1080p or Higher).

• High Speed Internet Connection (Wi-Fi).

Now that you got what is required here's how it works

Your Samsung GALAXY Note 10/10+ will be your host device this is the hardware your games will be stored on. This is where your accessories will be connected to.

To setup your Note10/10+ you will need to setup your Chromecast first.

Step 1: Connect your Chromecast to you HDTV and set it up (you may need to download the Google Home app to setup the Chromecast if you haven't already).

Step 2: Now the Chromecast will boot up, once it finishes booting up you will need to connect your game pad to your Note10/10+ via Bluetooth (if you need a gamepad controller look at bottom of the thread for links to our recommended gamepads).

Step 3: Once you connected your gamepad controller connect your Note10/10+ to your Chromecast to connect swipe your notifications down till you see all your Quicktiles and swipe to the right till you see a QS called "Smart View" once you selected it you will start searching for the Chromecast, once it has found your Chromecast select it it will connect to it and your screen will be mirrored.

Step 4: Now once your connected take your USB Type-C and plug it in your Note10/10+ so if your planning to play for more then 1hour it does not die on you while your in the middle of an important game session. (For the Micro USB was for your Chromecast to supply power and we didn't need to explain that).

Step 5: Now not all games will support any kind of gamepads and your basically trialling and erroring each game but if an app that does support gamepads such as for example: Dolphin Emulator & PPSSPP you will need to configure the games you want to play manually as it does not do it automatically.

Once your got the controller setup and other things setup as well your ready to start playing your favorite games!

Internet Connection Notice: This does require an internet connection and may vary depending on your speeds, the faster your connection speed is the faster and better the games will be streamed to your Chromecast!

Buy an Android Gamepad: https://ebay.us/FwYdZ8
Click to expand...

Play the 4K Video in video tag inside the WebView

A
In our Application, We are using Exoplayer and Webview in the Same Screen. We are loading some HTML content in the Webview and 4K Video in the Exoplayer. Playing the 4KVideo in exoplayer and HTML Content loading in the webview playing fine. Sometimes we are hiding the exoplayer and playing the 4K video in the WebView by loading the HTML content inside the iframe of the HTML. sometimes it was not play the video in the video tag.just showing up the video tag and show the HTML Content alone.
Click to expand...

Tech Dummie...101

svim
Being apprehensive about a smartphone is understandable, the industry just keeps packing more and more functionality into them every production cycle.
Before you do get into installing things on your own, get comfortable using your phone as is. Sit down and just start going through the Settings menu. That's your link to managing the different aspects of your particular phone. (Every different phone model has its own hardware configuration inside, and the Settings menu will reflect that, along with all the different features that vary between the different versions of Android.)

Open up the Settings menu and just start at the top and eventually work your way down the list one by one. A lot of those items will have their own sub-menus, and even some of those will have their own sub-menus so don't be surprised by the complexity that some things might appear to be. They're typically contextual so they need to nested within each other, and be aware some sub-menu options are accessed by tapping on a wrench icon or a three dot icon in the top menubar. Also, you'll encounter a lot of what appear to be odd phrasing and terminology. Some will be Android-based, some more specific to Samsung (Samsung is notorious for heavily branding its own products) so just do an online search for explanations and definitions. There's plenty of info online for Android and for Samsung so it's actually a problem now with the over-abundance of resulting links when doing a search these days.

Anyway, once you get more comfortable and familiar with all the things your S7 Edge can do, it shouldn't feel so daunting to change things around to make it more suitable to your needs. And don't rush things, we all learn at a different pace.
Click to expand...

Moto e5 Cruise

P
ocnbrze said:
the best way to send videos, especially large sized videos thru text or email is to use google drive. just upload the video there and use the share option. you should be shown a link which you can just copy and paste in to either text or email. i know it is not quite the same, but texting especially is not that sophisticated when it comes to handling media files like that.

http://wikiahow.com/how-to-send-large-videos-through-text-on-android-with-pictures/
Click to expand...
Sorry for the delayed response and thank you very much. Using your suggestion solved that problem. I think I just need to sit down with someone who also has an android who can walk me through the learning process. Again, thanks so much!!
Click to expand...

Instagram - Retrofit

umtblbl
Hello friends,
The following url returns the user's followers as json if the user logged in to instagram in the browser. If no input is made, the data is not returned.
How do I set a user's login status when sending a request to this url with Retrofit on Android? I think this url will return empty data again if no login is made.

Example
https://www.instagram.com/graphql/query/?query_id=17874545323001329&id=427553890&first=20
Click to expand...

Customising a spinner

S
So I figured this out, and it looks like I could make this work.
So in my class ConnectMySql in the onPostExcute method I have the following:

Code: 
@Override
protected void onPostExecute(String result) {
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),R.layout.spinner_layout, trainers);
    spinner.setAdapter(adapter);
}

The only change is changing the "android.R.layout.simple_spinner_dropdown_item" to "R.layout.spinner_layout", and then creating a layout_spinner.xml file.
This was the original line:
Code: 
adapter = new ArrayAdapter<String> (getContext(), android.R.layout.simple_spinner_dropdown_item, trainers);

The layout_spinner.xml file:

Code: 
<?xml version="1.0" encoding="utf-8"?>
    <TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceListItemSmall"
    android:gravity="center_vertical"
    android:paddingStart="?android:attr/listPreferredItemPaddingStart"
    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
    android:minHeight="?android:attr/listPreferredItemHeightSmall"
    android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"
    android:background="@color/logoGreen"
    android:paddingRight="?android:attr/listPreferredItemPaddingRight" />

Although it doesn't give me yet what I am wanting, it is just now a matter of changing this layout_spinner.xml to what I need.
Click to expand...

Root Moto E (1st gen) failed root.

G
Hi All,
I, too, struggled at the point of getting my Moto E 1st gen (XT1021) to enter TWRP recovery. Everything looked fine from the adb command window, but, I suspect, on reboot in recovery mode, the stock recovery was overwriting the twrp.img recovery. After many, many, attempts, I found a dead simple solution: instead of naming the file twrp.img, I renamed it recovery.img . Success at first attempt!

Hope this helps someone,
GWH
Click to expand...

[Free Game] Slappy Limbs (by Fronne)

Fronne
Kors_Santos said:
This game is awesome!;)
Click to expand...
Thank you so much for telling us! ;)
Spread the word and please Rate Slappy Limbs at Google Play, you will get an dialog to do it in the App after a few days...

Time is the Key to earn a Belt:
  • 30 seconds - Yellow Belt
  • 60 seconds - Orange Belt
  • 90 seconds - Green Belt
  • 120 seconds - Blue Belt
  • 180 seconds - Brown Belt - Health and Punches are restored
  • 240 seconds - Black Belt - Health and Punches are restored
Good Luck!
Let me know when you earn your Brown Belt and your Black Belt ofcourse! :p
Click to expand...

Higher FPS drains battery faster and heats faster?

Hadron
Running the same hardware at a higher FPS will use more power, because the phone is having to do more calculations per second.
For the same reason running the same FPS but higher resolution in the same phone will use more power.

"Flagship" vs "midrange" is too broad for the question to be answered. Different flagships have different screen resolutions, as do different midrangers. Different display panels will use different amounts of power at the same refresh rate and same brightness. Different SoCs vary in the amount of power they use to do the same amount of computation. So different midrangers will use different amounts of power, different flagships will use different amounts of power, different people using the same phone will use different amounts of power (because e.g. they'll choose different brightness settings). There will be a range for both flagships and midrangers, and I expect the ranges overlap.

Different people have different sensitivities to frame rates, so I don't think there is a single correct answer to that last question.
Click to expand...

Help Android remote support API follows the NIST 800-80 guidelines?

M
Does android remote support API follows the NIST 800-80 guidelines on device wipe operation ? if yes it falls under "clear" or "purge" operations

Below APi used to wipe device
https://developer.android.com/reference/android/app/admin/DevicePolicyManager.html#wipeData(int)

NIST 800-80 Guide
https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-88r1.pdf
Click to expand...

why does my screen randomly go black

G
My Galaxy Tab A 8.0 does the same thing. Randomly swaps from landscape to portrait, then the screen turns off. 30-minute screen timeout setting. Tapping the power button does NOT restore the screen. Only a reboot seems to fix it. I have no case on my device. Very random occurrence. Sometimes it happens 1 or 2 times a day, other times I can go 2 or 3 weeks without any problem. Has happened ever since Lollipop, now running Nougat.
Click to expand...

Android 9 Microphone feedback

C
My wife just got a new Galaxy S9. I noticed that it was significantly harder to hear her when we were talking. After a lot of troubleshooting, I've believe the problem is that her microphone is picking up the sounds coming from her speakers and canceling out all noises from being recorded. This happens when she has me on speaker phone as well as while we are in a video chat with Duo, Hangout, Skype, or Messenger (like I said, a lot of troubleshooting lol).

Is there a way to adjust the noise reduction or ambient noise threshold in Android 9?

Thank you in advance!
Click to expand...

Tech Dummie 101 help

ocnbrze
amandadereck2018 said:
I recently had the pie 9 update on phone which by the way I could hardly work it for a month. I'm that person that loves changing the back and the key Board
..
But oviously not good download this down....not good...I know something or someone is on my phone now but it looks like there protect it..Amways 1st time need navigation and def the best themes having nova launcher
Click to expand...
sorry i'm not sure i understand what it is you are asking. are you having difficulties with nova after the pie update? if so what exactly is the issue?
Click to expand...

no luck with frp bypass mediatek

ocnbrze
fugee279 said:
It's not for google to conjure up thoughts of stolen phones If a phone's been reset it's none of their business Google has service features for owners to reset their phones if lost or stolen and in that way can determine if a request came from the phone's owner If no such request was made there's no reason to assume the device to be stolen except that someone who bought a used phone is going to be very frustrated and without the use of the phone until they bypass frp Also, people trade in broken phones at cell phone retail stores bearing the names of the big four and selling their plans who then sell the broken phones and they end up on ebay
Click to expand...
tbh i feel better about this feature. if i left my phone lying around someone could find it and factory reset it and then use it as their own with their own acct. if you reset your phone, it is your responsibility to know your own acct info. even if it was bought used, as long as it was factory reset and then you sign in with your own acct, it is still your responsibility to know you acct info. its not google's fault if you forgot and can't log in. for me this is a very welcome security.

you can always go onto your pc and do a forget password with google and change the password which in turn should be able to log into your phone to unlock frp.
Click to expand...
Load more

Filter

Back
Top Bottom