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Where do alpha testers download Google Play Android apps?
I have developed my app and have published it through Google Play for alpha testing. As one of the testers I get an opt-in link, where I signed in as a tester. After that I was hoping to download the app directly with my phone by going to the Play Store on my phone. But as it seems to turn out, I ha...
Is the creation of Java class files deterministic?
...ystem or hardware ? Except of the JDK version, could there be any other factors resulting in differences? Are there any compiler options to avoid differences? Is a difference only possibly in theory or does Oracle's javac actually produce different class files for the same input and compiler opt...
社交应用组件 · App Inventor 2 中文网
... URI
电话号码：联系人的主要电话号码（在更高版本的 Android 版本上）
电话号码列表：联系人电话号码列表（在更高版本的 Android 版本上）
图片：包含联系人图片的文件的名称，可用作 图像.图片属性值 或 图像精灵.图片 ...
Specifying an Index (Non-Unique Key) Using JPA
...t.Column, index and uniqueIndex properties;
requery (GitHub. Java, Kotlin, Android): Annotation io.requery.Index;
Exposed (Kotlin SQL Library): org.jetbrains.exposed.sql.Index, org.jetbrains.exposed.sql.Table#index(). Example:
object Persons : IdTable() {
val code = varchar("code", 50).index(...
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|...
How do I set environment variables from Java?
...
on Android the interface is exposed via Libcore.os as a kind of hidden API.
Libcore.os.setenv("VAR", "value", bOverwrite);
Libcore.os.getenv("VAR"));
The Libcore class as well as the interface OS is public. Just the class dec...
Should accessing SharedPreferences be done off the UI Thread?
...ched), but yaffs doesn't have much in the way of concurrency (and a lot of Android devices run on yaffs... Droid, Nexus One, etc.) so if you avoid disk, you avoid getting stuck behind other in-flight or pending disk operations.
so you'll probably want to load the SharedPreferences during your onCrea...
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...
How to put space character into a string name in XML?
...
Android doesn't support keeping the spaces at the end of the string in String.xml file so if you want space after string you need to use this unicode in between the words.
\u0020
It is a unicode space character.
...
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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