Android

4K

Solutions

49

Articles & Videos

4K

Contributors

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).

Share tech news, updates, or what's on your mind.

Sign up to Post

I would like to listen to MP3 and FLAC files on my iPhone.
How can I copy them from my PC to my iPhone?
0
Enroll in June's Course of the Month
LVL 8
Enroll in June's Course of the Month

June's Course of the Month is now available! Every 10 seconds, a consumer gets hit with ransomware. Refresh your knowledge of ransomware best practices by enrolling in this month's complimentary course for Premium Members, Team Accounts, and Qualified Experts.

Hello,

I have released my app to Production.

Is there a way to test a new version on Google Play without the others seeing it? (and when everything is ok, then create the new release)

I know that I can copy the new apk to my phone but the Google Play version contains in app purchases.

Thank you.
0
So if my understanding is correct from what I have managed to discover, the problem here is that any device connected to a cell phone hotspot, that has an active VPN, will simply route through the public ip connection on the hotspot and not go through the VPN.

Is there a way to 'route' through the VPN any device connected to the cell hotspot?  I have heard that possibly rooting the cell phone may allow this, but I have never rooted a phone before.

Or, is there another way to make this happen?  I am trying to create a secure VPN from our remote offices back to our main office using a cell phone...without having to step up to a LTE router.
0
1. What does it mean for  "tools:context="com.abc.passingdata.MainActivity"  ? (sample 1)
2. What does it mean for the following XML statement ? For "action", does it refer to the corresponding java class. How does "category" defined in sample 2 ? Any special meaning ? Thx

            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />  

           <action android:name="com.abc.usingintent.SecondActivity" />
            <category android:name="android.intent.category.DEFAULT" />
   
SAMPLE 1
-------------
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:orientation="vertical"

    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.abc.passingdata.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Welcome to the Second Activity"
        android:id="@+id/textView" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click to go to Main  Activity"
        android:id="@+id/button"
        android:onClick="onClick"/>

</LinearLayout>

SAMPLE 2
--------------
        <activity …
0
I'm trying to collect data from FireBase, in Android Studio, while sorting it using the orderByChild and equalTo functions. Then I'm trying to display the data on text views. The page crashes every time? How can I fix this? Below I've given my code and my database:

 public class TrackOrder extends AppCompatActivity {

    DatabaseReference mDatabase;
    private EditText trackText;
    private Button trackBtn;
    private TextView disp, text;


    public void trackBtn (View view){ //opens the admin portal activity
        trackText = (EditText) findViewById(R.id.trackText);
        disp = (TextView) findViewById(R.id.disp);

        String trackNumb = trackText.getText().toString();

        disp.setText(trackNumb);


    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_track_order);

        String numb = disp.getText().toString();

        trackText = (EditText) findViewById(R.id.trackText);
        text = (TextView) findViewById(R.id.text);
        trackBtn = (Button) findViewById(R.id.trackBtn);


        mDatabase = FirebaseDatabase.getInstance().getReference().child("Orders"); //Reflecting where the data will be located


        mDatabase.orderByChild("1 order_number").equalTo("4725");

        mDatabase.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {



        

Open in new window

0
Got a baffling one.  Using stock email app Galaxy S5 6.0.1.  One work account configured Exchange Activesync.  User complained quit getting notification sound on new emails.  I tried changing ringtone, turning on/off notifications in email settings, rebooting.  Then found interestingly that user is not getting notification sounds when email comes from his own domain.  I sent test messages from a couple of outside accounts, and those get notification sounds.  Send an email from the same domain as user account and no notification sound.

Can't figure this one out.  There are no settings in the stock app for rules or anything like that.  There's no folder sorting or anything that I can see.  Even pc outlook interface, user only has one inbox folder.
0
3
 
LVL 17

Expert Comment

by:Lucas Bishop
I've had a similar issue with a Chrome extension in the past.
1
 
LVL 6

Expert Comment

by:Nicholas
Maybe Google should install Windows Defender...
1
Hello sir , i'm using WCF services in both web application and android . Now i want to implement encryption and decryption of various id's  so if i apply the encryption and decryption then on the web end i can easily manage the code but for android developer this is very hectic problem therefore suggest me how can i manage the code.
0
Hi,

my nextbook model (NXW116QC264) happens to go dead. When you plug in the charger - the red lights comes on but when you press the power - it wont come on?

What will be an issue here? Any idea?

Also, is there a way to extract data off it?

Regards,
0
Should I use Ecllispe or Android Studio to develop Android application ? Any good resource for starter to build an Android application ?

Thx
0
On Demand Webinar: Networking for the Cloud Era
LVL 8
On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

I am completely new to Game Dvelopment. Hence my question level in of Beginner Level of Game.please tell me which tool used for teen patti game development in android
0
Is there any solution to access to the shared calendar in Andrioid and iphone ?

Thx
0
how can i remove cookies from android 7 chrome browser for one website (not all cookies). is there anything else that websites can use to track my browsing (to their site) patterns?
0
hi
i have rooted my phone and deleted from there the explorer and browser and youtube and crome
but when user is getin waze and the seting and etc. it still can open youtube how does it posibble ?
and how can i block it ?
0
We send an SMS with a URL (e.g. mydomain.com/whatever)
The custom app "ABC" installed on the phone has "mydomain.com" as "supported links"
Using Android Messages, no problem, it launches ABC.

However using Samsung Messenger or Messages, clicking on the URL just opens the website.
In other words, it ignores the Settings for ABC.

Forcing users to install Android Messages is not an option for us.
What do you suggest?
0
How can I check if the  the number of contacts on my phone is equal to the number of Outlook contacts of my exchange folder.
0
Hello

I'm trying to take screenshots on the Samsung S8

Apparently this is done by pressing the right hand button along with one of the volume keys at the same time. All this seems to do is make the ringer volume go up or down.

I've tried this many times and it still doesn't work. Is there a setting I actually need to enable?

Many thanks in advance
0
There is a blue light Setting that basically reduces the brightness and supposedly the amount of blue light sent

But I'm not understanding this. The feature documentation says this is supposed to be enabled to help people sleep

But if I'm sleeping I'm not using my phone?

Or is this in case I wake up and check something ?

Or supposed to turn this feature on in the evening as I am starting to get tired so when I do check my phone it keeps me up less?
0
Hello

I understand with the Samsung S8 that there is the ability to view more than one app on the screen at the same time

Some questions

1. I know Mac can do this, can IOS iPhone and iPad

2. When I try this on a Samsung S8, i always seem to get the Settings as the first app and then any other app as the second. How can I get two real apps to run in multi screen
0
On Demand Webinar: Networking for the Cloud Era
LVL 8
On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

On the new Samsung Edge can there is a feature where the edge light will go off if there is a notification rather than a vibration or noise

Does anyone know

1. How to actually turn this on and simultaneously not have noise for notification

2. Does the S8 go into Do Not Disturb mode when someone puts it face down?

3. How can I control which notifications use this feature
0
RamChip
This article shows how to use a free utility called 'Parkdale' to easily test the performance and benchmark any Hard Drive(s) installed in your computer. We also look at RAM Disks and their speed comparisons.
3
 
LVL 17

Expert Comment

by:Gerald Connolly
Comment Utility
NIce article although the author doesnt seem to know that there are two measures of a disks performance
1) Throughput - measured in MBytes/sec
2) Bandwidth - Measured in IOPS

These two measures are mutually linked ie 100MB/s can either be 1*IOPS*100MB, or 100*IOPS*1MB

The figures seem to also show a lot of cache effects, or have dubious provenance,  otherwise how does a USB connected drive achieve 2289.5 IOPS (how do you get .5 of an IOPS anyhow)
0
 
LVL 10

Author Comment

by:Andrew Leniart
Comment Utility
Hi Gerald,

I do understand there are several things to take into consideration when measuring the performance of any hard drive, however going into depth in so far as eliminating cache effects would go beyond the scope of what this article is attempting to achieve. You may have also noticed that I didn't mention or talk about the effect FSB speeds can have on a hard drive's performance either?

As I mentioned at the start of the article;
The reason you might want to skip the QD32 tests is that they're not particularly useful for real life scenarios and just take additional time to run. QD stands for "Queue Depth" so the software also measures "separate thread" transfer speeds. Information not of much use for our purposes. I only include the results that I got below for the sake of completeness.
I think the general flow of the article from that point forward clearly shows it is targeting beginners to hard disk performance measuring and not representing any type of advanced hard drive performance analysis.  
The figures seem to also show a lot of cache effects, or have dubious provenance, otherwise how does a USB connected drive achieve 2289.5 IOPS (how do you get .5 of an IOPS anyhow)

Indeed.  How do you get a .5 of an IOPS ?  

Or even a .7 or .8  

How about you tell us?  :-)

Thanks for your feedback.  Always great to hear back from ones readers.

Best regards,
Andrew
0
I am trying to check for certain conditions, such as accessing the Internet and being able to read/write to a calendar and prompting the permissions if they are not already enabled. I cannot call the checkSelfPermissions() method on the ContextCompat class. It says that method does not exist.

Am I calling the method incorrectly or in the wrong place? My application is using API 23.

Please see the code below:
public void initializeCalendar() {

if (Build.VERSION.SDK_INT >= 23) {
    if (ContextCompat.checkSelfPermission(MainActivity.this,
            Manifest.permission.READ_CONTACTS))

    // write code to ask for permission

}

}

Open in new window


Can you give me some ideas on what is happening here?
0
I have an expandable list view that is inside of an expandable list adapter. I would like to remove an item from an expandable list view when the delete option is selected in the context menu in Android. After I call the remove method on the object's position, when I try to call notifyDataSetChanged() on the expandable list adapter, it says the method does not exist.

However, it will work for a regular ArrayAdapter. Because of the way my data is structured (having to display multiple fields in each list view item), I need to use an expandable list view instead of just a simple list view. I have tried casting the expandable list adapter to an ExpandListAdapter object and calling the getAdapter() method on it, and then calling notifyDataSetChanged() but I get the following error: SimpleAdapter cannot be cast to com.test.myapp.ExpandListAdapter.

My application is using API 25. Please see the code below:
@Override
public boolean onContextItemSelected(MenuItem item) {

    AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
    switch(item.getItemId()) {
        case R.id.add:
            Intent intent = new Intent(MainActivity.this, AddUser.class);
            startActivity(intent);
            return true;
        case R.id.edit:
            Intent intent2 = new Intent(MainActivity.this, ViewUser.class);
            intent2.putExtra("data", userList.get(info.position).get("id"));
            startActivity(intent2);
 

Open in new window

0
Hi!

I have an Android App written in Delphi Seattle.
The app won't be available on Google Play: I will deliver the Apk file to the user.

I would like to be able to restrict the number of devices per user (so each more device usage would cost a small sum of money)...

How can I do that?

Thank you.
0
Please provide me with a URL address of the Sprint PCS add a phone program.

I know several users who all currently have a single Sprint PCS cell phone and are interested in finding the details of how they can add a second phone to their Spring PCS account using the current Sprint PCS promotion that we have heard is going on until the end of June of 2017.
0

Android

4K

Solutions

49

Articles & Videos

4K

Contributors

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).