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【原因】Al伴侣出现错误: invoke: no method named Theme' in class edu.mi...
...: invoke: no method named Theme' in class edu.mit.appinventor.aicompanion3.Screen1
原因：aiStarter中AI伴侣版本 或者 其他任何途径中的AI伴侣版本过低导致的。
解决：升级到最新的AI伴侣即可。
升级可参考：https://www.fun123.cn/reference/creative/ai...
moveCamera with CameraUpdateFactory.newLatLngBounds crashes
...ngeListener. All will be working perfectly and you don't need to calculate screen size. This event occurs after map size calculation (as I understand).
Example:
map.setOnCameraChangeListener(new OnCameraChangeListener() {
@Override
public void onCameraChange(CameraPosition arg0) {
...
Understanding Canvas and Surface concepts
...:
A Surface is an object holding pixels that are being composited to the screen. Every window you see on the screen (a dialog, your full-screen activity, the status bar) has its own surface that it draws in to, and Surface Flinger renders these to the final display in their correct Z-order. A su...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...omponent is an item that the app can use. It could be visible on the phone screen such as a button or label, or it could be non-visible, such as a camera or a sensor. Each component has a set of blocks that the programmer can use to control its behavior.
Figure 1. Blocks for an App Inventor app t...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...xHeart]——心跳可选区间。
successHeart——当前成功心跳，初始为MinHeart
curHeart——当前心跳初始值为successHeart
heartStep——心跳增加步长
successStep——稳定期后的探测步长
b） 最大值探测步骤：
图4-1 自适应心跳计算流程
自...
Run ssh and immediately execute command [duplicate]
...milar should be possible with shells other than bash):
if [ -f $HOME/.add-screen-to-history ] ; then
history -s 'screen -dr'
fi
I keep a screen session running on one particular machine, and I've had problems with ssh connections to that machine being dropped, requiring me to re-run screen -d...
getting the screen density programmatically in android?
How to get the screen density programmatically in android?
19 Answers
19
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How do I get monitor resolution in Python?
..."Height =", GetSystemMetrics(1))
If you are working with high resolution screen, make sure your python interpreter is HIGHDPIAWARE.
Based on this post.
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Favicons - Best practices
... the touch icon, then multiple touch icons dues to the various iOS devices screen resolutions, then there was the tile icon for Windows...
Some answers here are very comprehensive - and overwhelming (all this, only for a favicon?). Yet, they fail at indicating that the 310x310 tile icon for Windows...
Detect iPad Mini in HTML5
...so this method can't be used for device detection!
You can use the either screen.availWidth or screen.availHeight as they seem to be different for iPad Mini and iPad 2.
iPad Mini
screen.availWidth = 768
screen.availHeight = 1004
iPad 2
screen.availWidth = 748
screen.availHeight = 1024
Source...