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Simplest way to detect a mobile device in PHP

...Code: <?php $useragent=$_SERVER['HTTP_USER_AGENT']; if(preg_match('/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|...
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How to read/write a boolean when implementing the Parcelable interface?

... @sotrh that is a copy-paste from a source code. Open android.os.Parcel source and see for yourself. – Yaroslav Mytkalyk Jan 5 '16 at 10:19 ...
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Prevent ViewPager from destroying off-screen views

...s limit will be recreated from the adapter when needed." http://developer.android.com/reference/android/support/v4/view/ViewPager.html#setOffscreenPageLimit(int) share | improve this answer ...
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Differences between Intent and PendingIntent

... Intent An Android Intent is an object carrying an intent, i.e. a message from one component to another component either inside or outside of the application. Intents can communicate messages among any of the three core components of an...
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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() share | improve this answer | ...
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Can't find @Nullable inside javax.annotation.*

... 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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I get exception when using Thread.sleep(x) or wait()

... 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 ...
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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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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...
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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...