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App Inventor 2 “虚拟”屏幕：同一屏幕展示多屏内容，模拟切换屏幕 · App...
...
虚拟屏幕（虚拟分屏）
开发步骤
demo下载：
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虚拟屏幕（虚拟分屏）
好处：大部分需要连接的组件（比如蓝牙客户端、MQTT、BluetoothLE、Wifi、Socket等）如果跨屏幕的话，都需要...
App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...节数组 (UDPBinaryTest)
« 返回首页 Iot 专题
拓展下载：
UrsAI2UDP.zip
demo下载：
CLOUD_REMOTE_VIDEO_CAR.aia
原作者开发动机
对于一个项目，应该开发一个与 ESP8266（项目）通信的 Android 应用程序。为了轻松开...
How to detect when WIFI Connection has been established in Android?
I need to detect when I have network connectivity over WIFI. What broadcast is sent to establish that a valid network connection has been made. I need to validate that a valid network connection for HTTP exists. What should I listen for and what additional tests do I need to make to know that a v...
Enabling WiFi on Android Emulator
How to enable WiFi on Android emulator? I have tried to find this but everyone is confusing WiFi with 3G.
6 Answers
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How to get device make and model on iOS?
...ro Max
@"iPhone12,8" on iPhone SE (2nd Gen)
//iPad 1
@"iPad1,1" on iPad - Wifi (model A1219)
@"iPad1,2" on iPad - Wifi + Cellular (model A1337)
//iPad 2
@"iPad2,1" - Wifi (model A1395)
@"iPad2,2" - GSM (model A1396)
@"iPad2,3" - 3G (model A1397)
@"iPad2,4" - Wifi (model A1395)
// iPad Mini
@"iPad...
How does Google calculate my location on a desktop?
...and my wireless router has been identified (thanks to association to other wifis around me at that time) in a very accurate area in Switzerland. Now, my wifi moved to Tokyo, but the queried system still thinks the wifi router is in Switzerland, because either it has no information about the addition...
How do I connect to a specific Wi-Fi network in Android programmatically?
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You need to create WifiConfiguration instance like this:
String networkSSID = "test";
String networkPass = "pass";
WifiConfiguration conf = new WifiConfiguration();
conf.SSID = "\"" + networkSSID + "\""; // Please note the quotes. String sh...
How to programmatically turn off WiFi on Android device? [duplicate]
I need to turn off the WiFi a while after pressing the "Turn off the Screen" button. There is a need for this app for my tablet because sometimes I just forget to turn off the WiFi and this discharges the battery very fast. It lives 10x+ times less than I would without WiFi.
Is there any solution a...
Android 4.3 Bluetooth Low Energy unstable
...tt implementation.
I often see even on modern devices with Android 5, that Wifi interferes withs bluetooth and vice versa. As a last resort, turn off wifi to stabilize bluetooth.
Tutorial for beginners
A pretty OK entry point for newcomers could be this video tutorial: Developing Bluetooth Smart ...
How do I see if Wi-Fi is connected on Android?
...ivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (mWifi.isConnected()) {
// Do whatever
}
NOTE: It should be noted (for us n00bies here) that you need to add
<uses-permission android:name="andro...