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check android application is in foreground or not? [duplicate]
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This was the answer I originally proposed in Android: Is application running in background? thread. However it turned out to be unreliable, moreover ActivityManager usage for background/foreground check is discouraged by Android authors. You may check my following answe...
SearchView's OnCloseListener doesn't work
I'm trying to add support for the SearchView in the Android 3.0+ ActionBar, but I can't get the OnCloseListener to work.
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Context switches much slower in new linux kernels
We are looking to upgrade the OS on our servers from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS. Unfortunately, it seems that the latency to run a thread that has become runnable has significantly increased from the 2.6 kernel to the 3.2 kernel. In fact the latency numbers we are getting are hard to belie...
How to create a file in Android?
How to create a file, write data into it and read data from it on Android? If possible provide a code snippet.
4 Answers
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一个自媒体的运营手记：我做公众号已经两年多了 - 资讯 - 清泛网 - 专注C/C...
...员，他们可能需求的是人脉，需求资源，需求推广运用的方法和技巧，他们更多的需求是把事情做好，做出效果来。所以针对这些人的内容，就是一些推广技巧，运用技巧等方面的知识。这个也是我做移动互联网公众号的内容守...
How do I see if Wi-Fi is connected on Android?
...d be noted (for us n00bies here) that you need to add
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
to your
AndroidManifest.xml for this to work.
NOTE2: public NetworkInfo getNetworkInfo (int networkType) is now deprecated:
This method was deprecated in AP...
Chrome DevTools Devices does not detect device when plugged in
...s/remote-debugging
Install Windows USB driver http://developer.samsung.com/android/tools-sdks/Samsung-Android-USB-Driver-for-Windows
Install Android SDK http://developer.android.com/sdk/index.html
Install Android SDK Platform-tools http://developer.android.com/sdk/installing/adding-packages.html (th...
What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?
...ge my default/main/startup (whatever you call it) activity by editing the androidmanifest.xml file. All i did was change the android:name property. however, this completely broke the entire app. when I try to install it fails and reads.
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How To Set Text In An EditText
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Why does android.text.Editable exist or, better yet, why are normal developers supposed to navigate around it instead of EditText exposing an void setText(CharSequence) method?
– Marcelo Lacerda
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Download large file in python with requests
...b.request import urlretrieve
url = 'http://mirror.pnl.gov/releases/16.04.2/ubuntu-16.04.2-desktop-amd64.iso'
dst = 'ubuntu-16.04.2-desktop-amd64.iso'
urlretrieve(url, dst)
Or this way, if you want to save it to a temporary file:
from urllib.request import urlopen
from shutil import copyfileobj
fr...