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get id of an item in spinner
Make a separate integer-array in XML for the ids: Get the int array in code: Using the position get the correct id from the array in onItemSelected :
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Showing 30 of 231 answers tagged android
Exported May 9, 2026
- 1score94viewsyesstatusCC BY-SA 3.0
images in assets are not seen
Saving all the images in R.drawable is not the best idea. It would be better to save specific images instead of all of them. However, here is how you could save all the images as specified in R.drawable :
- 1score228viewsnostatusCC BY-SA 3.0
Bash for Android automation - Can't compare variable resulting from read\awk
You can use a case statement to get the density. This worked for me: Updated code using -le (less than or equal to): Output on my device:
- 1score995viewsnostatusCC BY-SA 3.0
Android: opening large zip file
If a ZipException or IOException is being thrown when initializing ZipFile then you should test the integrity of the ZIP. You may also want to make sure you have read/write access. If you are unzipping this file on...
- 1score3.9KviewsnostatusCC BY-SA 3.0
I'm starting an activity from a broadcast receiver, but why is my other activity also starting?
From looking at your code and logs I think your problem is calling onBackPressed in your fragment. Your AlarmFragment.onPause should not be calling getActivity().onBackPressed() . This is most likely what is causing...
- 1score570viewsnostatusCC BY-SA 3.0
How can I change the color of arrows that appear when I am editing text
You can accomplish this by using a custom theme and setting the following: Or, you can use reflection:
- 1score474viewsyesstatusCC BY-SA 3.0
Draw bitmap and save/share it
The attachment is not readable by other apps because you are saving it to getFilesDir() . Simply change getFilesDir() to Environment.getExternalStorageDir() and other apps will be able to handle the saved image. This...
- 1score2.3KviewsyesstatusCC BY-SA 3.0
Android Material Design AppCompat
Every Activity needs to extend ActionBarActivity. AppCompat doesn't use the native Toolbar or ActionBar, even on Lollipop. For more info see:...
- 1score448viewsyesstatusCC BY-SA 3.0
Which deployed jar contains android.os.SystemClock?
On my device (HTC One M8) android.os.SystemClock is in /system/framework/framework3.jar. I believe framework is separated into multiple jars because of the 65k method limit on classes.dex. android.os.SystemClock may be...
- 1score17.8KviewsnostatusCC BY-SA 3.0
In Photoshop file font size is 20px what sp will be for this in android? Is its same? means 20px= 20sp or something else?
They are different and you should be using sp and not px. Please see this stackoverflow post sp Scale-independent Pixels - this is like the dp unit, but it is also scaled by the user's font size preference. It is...
- 1score961viewsnostatusCC BY-SA 3.0
Is it possible to create a silent installer on a stock ROM rooted device?
You can use an open source library to run the command as root. Check out the following libraries: https://github.com/Stericson/RootTools https://github.com/SpazeDog/rootfw https://github.com/Chainfire/libsuperuser...
- 1score2.8KviewsnostatusCC BY-SA 3.0
Android 4.4+ : check if path is on secondary storage
Here is my current solution. Not ideal, but it should work.
- 0score847.8KviewsnostatusCC BY-SA 4.0
How to display HTML in TextView?
You can build valid HTML for Android TextView using the HtmlDsl library on Github: https://github.com/jaredrummler/HtmlDsl . The library provides syntactic sugar to make the code more understandable and less error-prone...
- 0score9.9KviewsyesstatusCC BY-SA 3.0
adb find phone partitions
You can use toybox find : Toybox is included with Android 6.0 (Marshmallow) and all later Android versions.
- 0score425viewsyesstatusCC BY-SA 3.0
How to use network communication using greenrobot eventbus?
I would suggest using an architecture where an event bus might not be required. An event bus is still useful and I think you can find what you are looking for in their getting started guide . Some example code:
- 0score956viewsnostatusCC BY-SA 3.0
How to create directories in /storage/extSdCard path in android java?
You need to use DocumentFile.createDirectory(displayName) to create a directory on a removable SD card. See https://stackoverflow.com/a/35175460/1048340
- 0score101viewsnostatusCC BY-SA 3.0
Extract correct combination of digits from string
This works with all the examples from your logcat messages: https://regex101.com/r/P7lICp/1 Personally, I would rethink what you are doing.
- 0score83viewsnostatusCC BY-SA 3.0
Android - pass several parameters with putExtras between two activities
Two problems I see: 1: You are calling startActivityForResult twice. You can pass extras using intent.putExtra(...) . 2: You don't have a break in your switch statement:
- 0score128viewsyesstatusCC BY-SA 3.0
How to achieve the same appbar-design as Periscope's Android app?
I would use TabBarView . Then, in the Fragment you want a MenuItem to show (like the last tab in Periscope), add setHasOptionsMenu(true) and have the MenuItem 's visibility be app:showAsAction="always" . Wally also uses...
- 0score1KviewsnostatusCC BY-SA 3.0
Android - Getting Img Uri from file in drawable
You need to change your Uri . R.drawable.img is a resource id. Example: Change "your.package.here" with the package-name of your application. EDIT I don't have experience with the FacebookSdk. However, a quick Google...
- 0score152viewsnostatusCC BY-SA 3.0
How can I optimize my syntax highlighting?
Here are some suggestions: Use a Handler and a Runnable instead of TimerTask . I'm assuming you want to wait n milliseconds before calling textHighLighter(Editable s) after afterTextChanged(final Editable s) is invoked....
- 0score4.6KviewsnostatusCC BY-SA 3.0
Animate custom Dialog programmatically
You can use DialogFragment and set the animation in onCreateDialog(Dialog) or onStart() . Example from here :
- 0score1.1KviewsnostatusCC BY-SA 3.0
Multi dex eclipse android
Possible duplicate: Android multidex support library using eclipse It looks like ADT's ant-tasks project is no longer maintained (it resides under 'legacy' folder). So if you can't migrate to Gradle, you can edit the...
- 0score1.4KviewsnostatusCC BY-SA 3.0
Method Invocation actionbar.somemethod() may produce java null pointer exception
Your Activity ( Moovo ) inherits the application theme specified in your AndroidManifest . Your theme is a parent of Theme.AppCompat.Light.DarkActionBar . This theme removes the native android.app.ActionBar which is why...
- 0score90viewsnostatusCC BY-SA 3.0
How to read last four lines form the file?
Are you sure the file exists and you have read access? It is odd that you are creating the parent directory before reading. Check your logcat for the stacktrace. Also, make sure you declared the...
- 0score971viewsyesstatusCC BY-SA 3.0
Dynamically disable auto-capitalization of an EditText
As @CommonsWare pointed out, what you are doing should be OK. It is impossible to guarantee disabled auto-capitalization across all devices. If the user is using a third-party keyboard, like SwiftKey, it may override...
- 0score117viewsnostatusCC BY-SA 3.0
Android : linkify the textview in android application
You can use Html.fromHtml(String source) :
- 0score1.7KviewsnostatusCC BY-SA 3.0
Can i programmatically rename a file on removable sd card
Your problem is that in the context of a shell, the path returned from Environment.getExternalStorageDirectory() will throw an error that the file or directory does not exist. You need to change all file paths which you...
- 0score2.9KviewsnostatusCC BY-SA 3.0
Check If MenuItem is In ActionBar Overflow
You can use reflection. Put the following code in a class and then invoke Foo.isInOverflow(yourMenuItem); Note: you need to add the following line to your proguard configuration file so reflection works in production...
- 0score64.7KviewsnostatusCC BY-SA 3.0
How to get thumbnail for video in my /sdcard/Android/data/mypackage/files folder?
Here is a similar answer to Matthew Willis but with added reflection. Why? because science.