Develop Reference

Cannot copying file from Android to Linuxmint 17.3 Desktop "libmtp error: Could not get file from device"

I am trying to copy image file to backup it on my desktop which is linux mint (17.3 or Rosa) installed. I am using Infinix X510 phone with the newest version of android 6. At the beginning it was OK. But, at the end i get the message
“libmtp error: Could not get file from device”
I tried the solution as found by Googling here https://askubuntu.com/questions/879029/libmtp-error-could-not-get-file-from-device-on-attempting-to-transfer-files
But, it wasn't working for me. Is there a way to solve this matter? I need file to support my company job which supplying cosmetics.

Try compressing the file to a compressed format(tar,zip).Copy the file and then decompress it.

Changing the filename was the solution for me e.g: file.mkv to file.zip

Try to rename file, make sure file name not contain (-) (:) etc. Just rename it to alphabet

Autocompletion not showing in Android Studio with dual screens

I just switched from Eclipse to Android Studio (IntelliJ).
I can't figure out how the autocompletion works! I tried Control + Space, Control + Shift + Space but i have no relevant suggestion. Not in the Java files, not in the layout files.
Is there another shortcut? Do I need to enable some option beforehand?

Preferences > Keymap > Code > Completion > Basic/SmartType:

It was actually a display problem. I'm using two screens, and the suggestions only appear when the IDE is on the main one.
The (imperfect) solution is to define the display where I'm using the IDE as the main one.

Just remove all the folder "AndroidStudioPreview";
On Windows:
Go to your User Folder - on Windows 7/8 this would be:
[SYSDRIVE]:\Users\[your username] (ex. C:\Users\JohnDoe\)
In this folder there should be a folder called .AndroidStudioPreview
On Mac OS X
Remove these files:
~/Library/Application Support/AndroidStudioPreview
~/Library/Caches/AndroidStudioPreview
~/Library/Logs/AndroidStudioPreview
~/Library/Preferences/AndroidStudioPreview

You can get your Autocompletion suggestions back in Android Studio by doing: File>Invalidate Coches/Restart...>Invalidate and Restart

Android Virtual Device location error

I'm having a problem with starting an AVD from Eclipse.
When I start the AVD that I just created, it gives me the following error:
I think that is because of the username in the path...
I tried to just copy the .android to C:\ (=C:\.android) but the manager is just searching in the old path...
I tried to setup a environement variable like this:
Name: ANDROID_SDK_HOME
Value: C:\Users\André Peixoto\.android\.android
But it didn't solve the problem...
What should I try next?
UPDATE
I reinstalled the android sdk and now it doesn't show the weird characters:
But the path for the AVD_2_3_3.ini file still wrong. I think it should be: C:\Users\André Peixoto\.android\avd\AVD_2_3_3.ini instead of C:\Users\André Peixoto\.android\.android\.android/avd/AVD_2_3_3.ini
How should I change that?

I solved that using the solution presented on the comment 26 from here:
No matter your configuration. If the message will be like this
"[2011-11-21 22:31:24 - Emulator] PANIC: Could not open AVD config file: C:\Users\Ярослав.android\avd\my_defult_android_2_3_3_avd.avd/config.ini"
(
"C:\Users\Ярослав.android\avd\my_defult_android_2_3_3_avd.avd"
- it's your AVD device configuration. )
than :
copy direcoty "my_defult_android_2_3_3_avd.avd" to some place where the path will not contain "Ярослав" symbols (I in result had
the path like this
"d:\android\my_avd_devices\avd\my_defult_android_2_3_3_avd.avd").
File "my_defult_android_2_3_3_avd.ini" will contained in directory "C:\Users\Ярослав.android\avd\". Open this file.
Change "path=C:\Users\Ярослав.android\avd\my_defult_android_2_3_3_avd.avd" to
"path=d:\android\my_avd_devices\avd\my_defult_android_2_3_3_avd.avd"
Save and close. Start your application again))).
But at the first time I tried this solution and it didn't work. So I uninstalled the android SDK and eclipse and reinstalled all over again. I also removed the environments variables for android_sdk that I had previously set and set a new one called ANDROID_HOME with value C:\android-sdk.
Now I'm able to run AVD.
I think this is not a ideal solution because each time I create an AVD, I need to do this process. But for now it solves my problem.
Hope this solution helps someone else.
UPDATE - New Solution
I was having some problems with the previous solution so I used a diferent approach:
I created a new account (Administrator) in my Windows which the username havn't accents.
I put my Eclipse folder inside C:\ to have access from the new account.
Now, when I want to work with Android, I change to this new account.

Can not create new projectin Android

Hi iam new in Android and I am facing a problem in creating new project. After clicking finish button I am getting error as follow.
Failed to load properties file for project 'VDemo'

I got this in groups.google.com.See here
Here you have to set the environmental path's system variables. Which will
you get by *right clicking on My Computer properties Advanced Environmental
variables. *
** Then you select path option from System Variables* *and
select Edit option. Then u have to mentioned the *jdk's path as follows.
C:\Program Files\Java\jdk1.6.0_14\bin *after that give semi colon and set
the avd file path.
*
*
*C:\Documents and Settings\tpbhade.android\avd like this.** *Give the
semicolon. and click on ok button. Then u restart u r Eclipse. and go to
project menu unchecked Build Automatically option, and click on Build all
option. your problem will be solved.

How can i open .trace file format(traceview) without DDMS?

I want to save a log of method calls.
Traceview supports that function and I can get .trace file format.
but, I need to open .trace file format without DDMS.
If I can't open .trace file without DDMS, How can I get a log of method calls?
(The best is .txt file format.)
thanks.

It is an old thread.
because I found here, so other guys may need this, too.
Try this:
traceview -r yourtrace.trace > 1.txt
and look 1.txt has any useful thing to u.

"traceview" is a command-line utility. You don't need to launch it from DDMS.
If you just want a text file with times and message names, you can use "dmtracedump -o file.trace".

Well for one, you should just use DDMS it's very simple to work with. Even if you don't have eclipse you can use the one that shipped with the SDK. However, if you already have access to the tracefile.trace then you could simply use Traceview from the SDK. Simply open your command prompt and navigate to your android SDK/tools directory as such: cd C:\Program Files\Android\android-sdk\tools. Once there simply type traceview followed by the filename (can omit .trace) as such: traceview C:\Users\Sino\Desktop\Janky_trace_file. This should open your trace file in a GUI representation with functionality to delve into your method calls.

This is simple.
Eclipse: File --> Open file --> open traveview file (xxxx.trace)

If you have a ".trace" file, just use "traceview " from the command line and you should be able to view the content of the file.
You can generate various graphs with the existing .trace file using the command line tool "dmtracedump". http://developer.android.com/tools/help/dmtracedump.html.