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10th October 2014 by admin. 0 Comments.
Android studio hangs “Waiting for ADB”
I have been getting android studio hangs intermittently (whole window frozen) and it looks to just be ADB hanging. Seems to happen a lot when my mac sleeps.
The solution was just to restart adb using :
Hopefully this will be fixed soon. the whole Android studio inferface shouldn’t hang just because ADB isn’t responding – it should be in a background task.
Hope it helps someone.
The solution was just to restart adb using :
adb kill-server; adb start-server
Hopefully this will be fixed soon. the whole Android studio inferface shouldn’t hang just because ADB isn’t responding – it should be in a background task.
Hope it helps someone.
7th October 2014 by admin. 0 Comments.
Recover files from a non booting device
This is for when you have not been able to boot your phone and need to get files off it.
The device (a Nexus 4) turns on but never makes it past the loading screen.
So it doesn’t finish booting – but mine had booted enough to have ADB running.
To use this method you need to have ADB installed on the host. (e.g. install dev tools – see [1])
* To get the list we use ADB shell
* Take this list (select+copy) and paste to to a local file say picnames.txt
* Then execute
This should copy the files to the local directory … phew!
refs:
[1] developer.android.com/sdk/index.html
The device (a Nexus 4) turns on but never makes it past the loading screen.
So it doesn’t finish booting – but mine had booted enough to have ADB running.
To use this method you need to have ADB installed on the host. (e.g. install dev tools – see [1])
* To get the list we use ADB shell
$ adb shell shell@mako:/ $ ls /sdcard/ ... DCIM/ shell@mako:/ $ ls /sdcard/DCIM/ 100ANDRO/ Camera/ shell@mako:/ $ ls /sdcard/DCIM/Camera/ ... (list files)
* Take this list (select+copy) and paste to to a local file say picnames.txt
* Then execute
$ cat picnames.txt | xargs -I % adb pull /sdcard/DCIM/Camera/% 7003 KB/s (3677132 bytes in 0.512s) ...
This should copy the files to the local directory … phew!
refs:
[1] developer.android.com/sdk/index.html
7th August 2014 by admin. 0 Comments.
Some great in depth turtorials and slide for Android tasks
These are some great tutorial/slides I found recently:
Threading:
www.slideshare.net/andersgoransson/efficient-android-threading
Loaders:
www.slideshare.net/cbeyls/android-loaders-reloaded
Android source:
Threading:
www.slideshare.net/andersgoransson/efficient-android-threading
Loaders:
www.slideshare.net/cbeyls/android-loaders-reloaded
Android source:
Android Source Code Guided Tour from Kevin McDonagh
15th March 2014 by admin. 0 Comments.
Setting up Junit ServiceTestUnit tests with Application references
I have been setting up unit testing for an existing project of late and when testing services I ran into problems setting up the application and base context references. Searching around – I wasn’t able to find a way to do this, hence I am noting it down to make it (hopefully) easier for you..
Setting the Application context in the test unit setUp() enabled me to get the Application object but many other calls did not work (e.g. getPackageName()). To properly setup the application object we need to set the Base Context for the application object. This can be done by overriding attachBaseContext(Context base) in the application object and making it public.
Of course you shouldn’t really have to change your source to run tests – but in practice it happens anyways (e.g. making methods public to call them from the test).
Setting the Application context in the test unit setUp() enabled me to get the Application object but many other calls did not work (e.g. getPackageName()). To properly setup the application object we need to set the Base Context for the application object. This can be done by overriding attachBaseContext(Context base) in the application object and making it public.
Of course you shouldn’t really have to change your source to run tests – but in practice it happens anyways (e.g. making methods public to call them from the test).
Application
This method is added to the application object it overrides the default from ContextWrapper
@Override
public void attachBaseContext(Context base) {
super.attachBaseContext(base);
}
DownloadServiceTest
public class DownloadServiceTest extends ServiceTestCase<DownloadService> {
DownloadService _downloadService;
public DownloadServiceTest() {
super(DownloadService.class);
}
public DownloadServiceTest(Class<DownloadService> activityClass) {
super(activityClass);
}
protected void setUp() throws Exception {
super.setUp();
MyPODApplication myPODApplication = new MyPODApplication();// the application object
// the overrided method to attach the context - we pass the Context provided by getSystemContext();
myPODApplication.attachBaseContext(getSystemContext());
setApplication(myPODApplication);
getApplication().onCreate();
setContext(getApplication());
Intent i = new Intent(getSystemContext(),DownloadService.class);
i.setAction(Globals.INTENT_START_DOWNLOADS);
Log.d(DownloadService.class.getSimpleName(), "dl svc started");
startService(i);
// should use a service binder here
_downloadService = getService();
}
// more test methods here
}