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Custom attributes in styles.xml
... style.
<?xml version="1.0" encoding="utf-8" ?>
<resources xmlns:android="http://schemas.android.com/apk/res/android">
<style name="CustomStyle">
<item name="android:layout_width">wrap_content</item>
<item name="android:layout_height">wrap_con...
Android: How to enable/disable option menu item on button click?
...Item(R.id.example_foobar).setEnabled(false);
}
return true;
}
On Android 3.0 and higher, the options menu is considered to always be open when menu items are presented in the action bar. When an event occurs and you want to perform a menu update, you must call invalidateOptionsMenu() to re...
Difference between Activity Context and Application Context
This has me stumped, I was using this in Android 2.1-r8 SDK:
7 Answers
7
...
Android onCreate or onStartCommand for starting service
Usually when I create an Android service I implement the onCreate method, but in my last project this does not work. I tried implementing onStartCommand , and this seems to work.
...
Search all the occurrences of a string in the entire project in Android Studio
I've just started using Android Studio (IntelliJ), and I now look for the feature to find the occurrence of a string in any of the files in my project. For example: I want to find all the files that contain the string " .getUuid() "
...
Getting activity from context in android
...
No
You can't
There are two different contexts in Android. One for your application (Let's call it the BIG one) and one for each view (let's call it the activity context).
A linearLayout is a view, so you have to call the activity context. To call it from an activity, simpl...
Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
...th Mac OS X Mavericks . Building for iOS went just fine, but building for Android wasn't without some guesswork.
7 Answers...
SparseArray vs HashMap
...rally slower, not indicated for large collections
They won't work in a non-Android project
HashMap can be replaced by the following:
SparseArray <Integer, Object>
SparseBooleanArray <Integer, Boolean>
SparseIntArray <Integer, Integer>
SparseLongArray <In...
App Inventor 2 高频定时器教程 - 实现10ms级精确定时 · App Inventor 2 中文网
...实际精度
说明
1ms
≈15-20ms
Android定时器最小精度约15ms
10ms
≈15-30ms
受系统调度影响
20ms
≈20-40ms
较可靠
50ms
≈50-70ms
稳定
10...
Moving and vanishing lines of code; trouble with Eclipse's XML Editor
...now available in ADT 21 Preview 9, posted a few minutes ago, here: https://android-review.googlesource.com/#/c/44936/1
The reason you get weird visual artifacts is that if a file contains broken DOS line endings (multiple carriage returns without a newline for each carriage return), Eclipse gets ve...