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How can I get useful error messages in PHP?
Quite often I will try and run a PHP script and just get a blank screen back. No error message; just an empty screen. The cause might have been a simple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely.
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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...摸事件派发超时ANR，一般阈值为5s（设置中开启ANR弹窗，默认有事件派发才会触发弹框ANR）；
广播阻塞ANR，一般阈值为10s（设置中开启ANR弹窗，默认不弹框，只有log提示）；
服务超时ANR，一般阈值为20s（设置中开启ANR弹...
UICollectionView current visible cell index
... especially well when each item in your collection view takes up the whole screen.
Swift version
let visibleRect = CGRect(origin: collectionView.contentOffset, size: collectionView.bounds.size)
let visiblePoint = CGPoint(x: visibleRect.midX, y: visibleRect.midY)
let visibleIndexPath = collect...
How to make the window full screen with Javascript (stretching all over the screen)
How can I make a visitor's browser go fullscreen using JavaScript, in a way that works with IE, Firefox and Opera?
19 Answe...
Read only file system on Android
...adb
as a normal user:
adb shell
su
Grant root permissions on touch screen
mount
list all mount points that we have and we can see, in my case, that /dev/stl12 was mounted on /system as ro (ready only), so we just need do:
mount -o rw,remount /dev/stl12 /system
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How Do You Clear The IRB Console?
How do you clear the IRB console screen?
21 Answers
21
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Using vagrant to run virtual machines with desktop environment
...rtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y xfce4 virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11
$ sudo VBoxClient-all
Only now should you start the GUI as the vagrant user, with $ s...
Application Skeleton to support multiple screens
...oming with various device which having different
Features, Resolution, and Screen-size so while developing an Application which support
multiple (small and big) screen there is an obstacle of size and layout.
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Android splash screen image sizes to fit all devices
I have a full screen PNG I want to display on splash. Only one error there, and I have no idea
what size to put in every drawable folder ( ldpi , mdpi , hdpi , and xhdpi ). My application is supposed to run good and beautiful on all phones and tablets. What sizes (in pixels) should I create so th...
Programmatically Request Access to Contacts
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Only black screen appear like app is frozen and when i close app i see alert of permission. Do you have an idea about why it is happening? this alert should be on app not under black screen.
– Yucel Bayram
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