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Programmatically go back to the previous fragment in the backstack
...opBackStack() methods (there are several to choose from)
http://developer.android.com/reference/android/app/FragmentManager.html#popBackStack()
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Can't find @Nullable inside javax.annotation.*
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In case someone has this while trying to compile an Android project, there is an alternative Nullable implementation in android.support.annotation.Nullable. So take care which package you've referenced in your imports.
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Difference between an API and SDK
... I agree with this definition, but at the same time wonder why iOS and Android use the term API for e.g. the Bluetooth library (iOS Core Bluetooth API, Android Bluetooth APIs)?
– tamberg
Oct 11 '19 at 9:26
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I get exception when using Thread.sleep(x) or wait()
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When using Android (the only time when I use Java) I would recommend using a handler instead putting the thread to sleep.
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public ...
Java code for getting current time [duplicate]
...ater. Official successor to Joda-Time.Back-ported to Java 6 & 7 and to Android.
Joda-TimeThird-party library, open-source, free-of-cost.
java.time
ZonedDateTime zdt = ZonedDateTime.now();
If needed for old code, convert to java.util.Date. Go through at Instant which is a moment on the timel...
Determine if the device is a smartphone or tablet? [duplicate]
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This subject is discussed in the Android Training:
Use the Smallest-width Qualifier
If you read the entire topic, they explain how to set a boolean value in a specific value file (as res/values-sw600dp/attrs.xml):
<resources>
<bool name="isTa...
How to obtain the start time and end time of a day?
...ted to Java 6 & 7 in the ThreeTen-Backport project, further adapted to Android in the ThreeTenABP project.
An Instant is a moment on the timeline in UTC with a resolution of nanoseconds.
Instant instant = Instant.now();
Apply a time zone to get the wall-clock time for some locality.
ZoneId zone...
“/usr/bin/ld: cannot find -lz”
I am trying to compile Android source code under Ubuntu 10.04. I get an error saying,
11 Answers
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Android, How can I Convert String to Date?
I store current time in database each time application starts by user.
6 Answers
6
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Set margins in a LinearLayout programmatically
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@ArtemRussakovskii Like most functions in Android, they take pixels. I suggest a global utility function that converts dips to px. This is what I have done in all my apps. Android API sucks.
– mxcl
Jan 26 '12 at 12:00
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