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传感器组件 · App Inventor 2 中文网
...添加此属性的版本之前，加速度传感器 组件直接传递从 Android 系统接收到的传感器值。然而，这些值无法补偿默认为横向模式的平板电脑，需要 MIT App Inventor 程序员进行补偿。但是，在手机等纵向模式设备中进行补偿会导致结...
getViewTypeCount and getItemViewType methods of ArrayAdapter
... But if you don't implement these two methods intuitively according to the Android API Doc, then you might get into the problem I mentioned about.
Summarized Guideline for the implementation:
To implement multiple types of Views for ListView's rows we have to essentially implement, getItemViewType...
How to prevent sticky hover effects for buttons on touch devices
...einsert of the element can be very noticable. Unfortunately, I found on my android 4.4 device that doing this without setTimeout didn't work.
– Rodney
Jul 17 '15 at 10:57
1
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getApplicationContext(), getBaseContext(), getApplication(), getParent()
...lication() is available to Activity and Services only. Although in current Android Activity and Service implementations, getApplication() and getApplicationContext() return the same object, there is no guarantee that this will always be the case (for example, in a specific vendor implementation).
So...
Getting a File's MD5 Checksum in Java
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Doesn't work for me in my android code I get this error...java.lang.NoSuchMethodError: org.apache.commons.codec.binary.Hex.encodeHexString at org.apache.commons.codec.digest.DigestUtils.md5Hex(DigestUtils.java:215)
– JPM
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Download a file from NodeJS Server using Express
...);
});
function readApp(req,res) {
var file = req.originalUrl == "/read-android" ? "Android.apk" : "Ios.ipa",
filePath = "/home/sony/Documents/docs/";
fs.exists(filePath, function(exists){
if (exists) {
res.writeHead(200, {
"Content-Type": "application/octet-s...
How many Activities vs Fragments?
...ink the pattern you're describing is from the original Google sample code: android-developers.blogspot.com/2011/02/… I think ActionBarSherlock just ported the Google demo code to use ABS classes.
– Dan J
Nov 25 '13 at 19:41
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FFMPEG (libx264) “height not divisible by 2”
...
LordNeckbeard has the right answer, very fast
-vf scale=1280:-2
For android, dont forget add
"-preset ultrafast" and|or "-threads n"
share
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How to lock orientation during runtime
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This doesn't address the OQ, at least on Android >= 16. setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR) might set the device to landscape even if it was in portrait, whereas the question refers to locking orientation that was given.
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Getting the class name from a static method in Java
...to use, rather clean and monstrously fast.
Available only since Java 7 and Android API 26!
MethodHandles.lookup().lookupClass();
In case you need this functionality for Android or Java 6, you can use the second best variant. It's rather fast too, but creates an anonymous class in each place o...