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VideoRecorder 拓展：前台预览录制 + 后台无预览录制，支持分辨率、码率设...
...否启用闪光灯，默认 false
CameraOrientation
摄像头方向（0/90/180/270），默认自动检测
Quality
视频画质预设，默认 HIGHEST。支持 HIGHEST、LOWEST、720P、1080P、480P、1920x1080 等
BitRate
视频编码码率（bps），默认 0 自动根据分辨率计...
Repeat string to certain length
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Joop
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answered Aug 2 '10 at 19:30
Jason ScheirerJason Scheirer
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How do I detect a click outside an element?
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community wiki
10 revs, 7 users 52%Eran Galperin
721
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Postgres unique constraint vs index
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Let's check uniqueness, just in case.
test=# insert into master values (0, 0);
INSERT 0 1
test=# insert into master values (0, 1);
ERROR: duplicate key value violates unique constraint "master_con_id_key"
DETAIL: Key (con_id)=(0) already exists.
test=# insert into master values (1, 0);
ERROR: ...
Align two inline-blocks left and right on same line
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150
Edit: 3 years has passed since I answered this question and I guess a more modern solution is ne...
MLKitCustomLabeler / MLKitCustomObjectDetector 拓展：用自己的 TFLite 模型 · App Inventor 2 中文网
...个）
基础模型只有粗类别 —— 图像标注是 400 个通用类，
目标检测只有 5 个大类。想认具体品类（花的品种、菜名、
零件型号、垃圾分类……）就要用自己训练的模型。这两个拓展就是干这个的：
拓展
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Get color value programmatically when it's a reference (theme)
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Emanuel MoecklinEmanuel Moecklin
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How to apply multiple transforms in CSS?
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1047
You have to put them on one line like this:
li:nth-child(2) {
transform: rotate(15deg) tr...
sql ORDER BY multiple values in specific order?
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bobfluxbobflux
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how to return index of a sorted list? [duplicate]
...list. For example, if the list I want to sort is [2,3,1,4,5] , I need [2,0,1,3,4] to be returned.
7 Answers
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