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MIT已发布v2.75版本，中文网已同步升级最新版本 - App Inventor 2 中文网 -...
...修复该bug。
之前：
修复后：
部分源自：https://mp.weixin.qq.com/s/02-o10bIa9e3ngW3N90Qsw
绝对布局作为一个容器类组件，绝对布局允许其中的其他组件自由地选择停放位置，为此，所有用户界面组件都增加了top及left两个属性，...
/data/user/0/xxxx/files（内部存储）和 /storage/emulated/0/Android/data...
...ile externalFile = new File(context.getExternalFilesDir(null), "cache.mp4");try (FileOutputStream fos = new FileOutputStream(externalFile)) {    fos.write(videoData);}// 可选：通知媒体扫描（如果是媒体文件）MediaScannerConnection.scanFile(context,   &nb...
How can I record a Video in my Android App.?
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Here is a simple video recording example using the MediaRecorder:
public class VideoCapture extends Activity implements OnClickListener, SurfaceHolder.Callback {
MediaRecorder recorder;
SurfaceHolder holder;
boolean recordin...
How do I list all files of a directory?
...ant just files, you could either filter this down using os.path:
from os import listdir
from os.path import isfile, join
onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]
or you could use os.walk() which will yield two lists for each directory it visits - splitting into files an...
How can I generate Unix timestamps?
Related question is "Datetime To Unix timestamp", but this question is more general.
18 Answers
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Eclipse doesn't highlight references anymore
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edited Nov 6 '15 at 11:30
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Xcode 6 how to enable storyboard zoom?
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edited Sep 18 '14 at 14:41
Alex Stone
40....
How to change Hash values?
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edited May 1 '09 at 18:25
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What techniques can be used to speed up C++ compilation times?
What techniques can be used to speed up C++ compilation times?
27 Answers
27
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Android Notification Sound
I've used the newer NotificationCompat builder and I can't get the notification to make a sound. It will vibrate and flash the light. The android documentation says to set a style which I've done with:
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