I suppose if the app is already installed, you need to supply the `-r` key:

    adb install -r myapp-release.apk

From the `adb` help:

    &#39;-r&#39; means reinstall the app, keeping its data

What are the **main differences** between using Storyboards and xib files.

  Specifically,
 what are the **advantages or disadvantages** of using a Storyboard?

  Unfortunately, despite doing quite a bit of research, all I&#39;ve been able to find on Storyboards are simple tutorials that show you how to set up a Storyboard, instead of concrete information explaining what they are.

What are the benefits of using Storyboards instead of xib files in iOS programming?

I am probably missing something obvious but anyway:

When you import a package like `os` in python, you can use any submodules/subpackages off the bat. For example this works:

    &gt;&gt;&gt; import os
    &gt;&gt;&gt; os.path.abspath(...)

However I have my own package which is structured as follows:

    FooPackage/
      __init__.py
      foo.py

and here the same logic does not work:

    &gt;&gt;&gt; import FooPackage
    &gt;&gt;&gt; FooPackage.foo
    AttributeError: &#39;module&#39; object has no attribute &#39;foo&#39;

What am I doing wrong?



Importing packages in Python

I know that `adb install` will not replace an existing package if it&#39;s of a different build *type* (i.e. debug vs. release).

Eclipse also successfully replaces the debug apks whenever I run a debug session.

But when I attempt `adb install` for replacing an existing *release* apk with another release apk (same package name!), I get a failure message:

    adb install myapp-release.apk 
    	pkg: /data/local/tmp/myapp-release.apk
    Failure [INSTALL_FAILED_ALREADY_EXISTS]
    745 KB/s (34310 bytes in 0.044s)

Wasn&#39;t that supposed to work? What am I missing?

Why does adb install &lt;same-packagename-always-release&gt; fail?

I know that <code>adb install</code> will not replace an existing package if it's of a different build type (i.e. debug vs. release).
Eclipse also successfully replaces the debug apks whenever I run a debug session.
But when I attempt <code>adb install</code> for replacing an existing release apk with another release apk (same package name!), I get a failure message:
<pre><code class="hljs language-arduino">adb install myapp-release.apk 
	pkg: /data/local/tmp/myapp-release.apk
Failure [INSTALL_FAILED_ALREADY_EXISTS]
745 KB/s (34310 bytes in 0.044s)
</code></pre>
Wasn't that supposed to work? What am I missing?

I am wondering what exactly _API level_ means. I couldn&#39;t seem to find an answer by searching on Google.

Could anyone please explain what the term _API level_ means?

What does API level mean?

I have an apk which I&#39;ve signed and uploaded to Android Market, and installed on my phone. I would like to debug this release apk (by means of Eclipse) whilst it is running on my phone. I have done this before (and remember it being with one of the Android development tools; perhaps Dalvik Debug Monitor) but unfortunately cannot remember how to do it and have been unable to find any articles online. Does anyone know how this can be done?

&gt; **Note:** I _have_ set `android:debuggable=&quot;true&quot;` in the manifest and have enabled USB Debugging on my phone.

How to debug apk signed for release?

I am trying to start up a `BroadcastReceiver` within a `Service`. What I am trying to do is have a background running `service` going that collects incoming text messages, and logs incoming phone calls. I figured the best way to go about this is to have a `service` running that incorporates a broadcast receiver that can catalog either. 

How do i go about doing this? I already have my service up and running.

Broadcast Receiver within a Service

My switch-case statement works perfectly fine yesterday. But when I run the code earlier this morning eclipse gave me an error underlining the case statements in color red and says: case expressions must be constant expression, it is constant I don&#39;t know what happened. Here&#39;s my code below:

    public void onClick(View src)
        {
        	switch(src.getId()) {
        	case R.id.playbtn:
    			checkwificonnection();
    			break;
    			
        	case R.id.stopbtn:
        		Log.d(TAG, &quot;onClick: stopping srvice&quot;);
        		Playbutton.setImageResource(R.drawable.playbtn1);
        		Playbutton.setVisibility(0); //visible
    			Stopbutton.setVisibility(4); //invisible
    			stopService(new Intent(RakistaRadio.this,myservice.class));
    			clearstatusbar();
    			timer.cancel();
    			Title.setText(&quot; &quot;);
    			Artist.setText(&quot; &quot;);
    			break;
    			
        	case R.id.btnmenu:
        		openOptionsMenu();
        		break;
        	}
        }

All R.id.int are all underlined in red.

switch case statement error: case expressions must be constant expression

What is the difference between [`START_STICKY`][1] and [`START_NOT_STICKY`][2] while implementing services in android? Could anyone point out to some standard examples.. ?


  [1]: http://developer.android.com/reference/android/app/Service.html#START_STICKY
  [2]: http://developer.android.com/reference/android/app/Service.html#START_NOT_STICKY

START_STICKY and START_NOT_STICKY

I want to install an APK from PC to Android device. And because of user&#39;s Android and generally technical skills, I need to do it as automatically (silently) as possible. So how do I send an APK from PC to Android and start install there?

How to install APK from PC?

What is the equivalent of `apk` in `iOS`?

What is the equivalent of apk in iOS?

I&#39;ve decoded an APK with apktool (as the original source code was lost) so I could fix some issues with the layout xml files. I&#39;ve then rebuilt it back up with apktool and when I tried to install it on my device (using adb: adb install appname.apk) it gave me this error:

    [INSTALL_PARSE_FAILED_NO_CERTIFICATES]

the original apk however was signed by a keystore (on eclipse IDE), this one isn&#39;t, how can I sign it properly with it&#39;s original keystone file outside Eclipse!?

How to Sign an Already Compiled Apk

I&#39;m trying to extract the APK file of an installed Android app WITHOUT root permissions.

I thought that this was impossible, because all APK files for non-system-apps are located in /data/app, and accessing this folder requires root permission. Then I found that there are numerous apps in the Google Play store that seem to have access to the APK files even on non-rooted devices.

Can someone tell me how this is possible? Aren&#39;t there backup apps which backup the APK files without root?

How do I get the APK of an installed app without root access?

When I try to run my application with in-app billing I am getting the error: &quot;This version of the application is not configured for billing through Google Play. Check the help center for more information&quot;.

I have the billing permission already in the Manifest file and I have a signed .apk uploaded as a draft onto Google Play and I have also installed that same signed apk onto my phone.

Any help on how to solve this issue?

This version of the application is not configured for billing through Google Play

I am using a Samsung galaxy nexus phone (**Android 4.0** platform) .

I am developing Android app on Ubuntu linux OS. I would like to run my application directly on the Samsung handset device, so I performed the following setup steps:

1. in my project `AndroidManifest.xml` file, added `android:debuggable=&quot;true&quot;` to the `&lt;application&gt;` element

2. On the device, in the **Settings &gt; Security** enabled **Unknown sources**

3. On the device, in the **Settings &gt; Developer options** enabled **USB debugging**

4. On my computer, created the `/etc/udev/rules.d/51-android.rules` file with the following content:

        SUBSYSTEM==&quot;usb&quot;, ATTR{idVendor}==&quot;04E8&quot;, MODE=&quot;0666&quot;, GROUP=&quot;plugdev&quot; 

5. On my computer, run the `chmod a+r /etc/udev/rules.d/51-android.rules` command

Then, on my computer I opened a terminal and executed the `adb devices` command, I got:

    List of devices attached 
    ????????????	no permissions

Since I did not see my device but only `???????????? no permissions`, I then run the following commands:

     adb kill-server
     adb start-server
     adb devices

But I still got:

    List of devices attached 
    ????????????	no permissions

Why? What am I missing?



set up device for development (???????????? no permissions)

I need to install just ADB on customer&#180;s PC to connect to android phone and install apk there. And because of SDK size is it possible to do it without installing whole SDK?

Is there any way how to install just ADB without whole SDK?

I&#39;m basically trying to do this:
https://stackoverflow.com/questions/2417427/changing-the-android-emulator-locale-automatically

Everything works up until &#39;start&#39;.  the emulator starts to boot but keeps loading at the shimmering &#39;ANDROID&#39; screen forever.  I must be missing something...  How can I restart the emulator from ADB?  

Okay, I should be more specific.  

I am trying to do this from the command line using adb.  I can use adb to setprop and I can stop the emulator. When I try doing &#39;start&#39; in the adb shell, the emulator does begin to boot, but it never returns to the lock screen.  

How do I restart an android emulator?

Im automating a testing procedure for wifi calling and I was wondering is there a way to turn off/on wifi via adb?

I would either like to disable/enable wifi or kill wifi calling (com.movial.wificall) and restart it. 

Is it possible to do this all via adb and shell commands?   

so far I have found:

    android.net.wifi.WifiManager
    setWifiEnabled(true/false)

Im just not sure how to put it together






How to turn off Wifi via ADB?

I need to run an `adb forward` command before I could use the *ezkeyboard* application which allows user to type on the phone using browser. 

When I run `adb forward tcp:8080 tcp:8080` command I get the `adb command not found` error message.

I can run `android` command from terminal. Why `adb` is not working?


Content Type	Original Author	Original Content on Stackoverflow
Question	an00b	View Question on Stackoverflow
Solution 1 - Android	alex.zherdev	View Answer on Stackoverflow

Why does adb install <same-packagename-always-release> fail?

Android Problem Overview

Android Solutions

Solution 1 - Android

Importing packages in Python

What are the benefits of using Storyboards instead of xib files in iOS programming?

Attributions