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What is “missing” in the Visual Studio 2008 Express Editions?
...pport for compiling C++ to 64-bit images (workaround is to install Windows SDK which is free)
NOTE: it is often said that the Express EULA does not permit commercial development - that is not true (Visual Studio Express FAQ Item 7)
...
Remote debugging with Android emulator
...ither different on Windows, or has changed with the latest versions of the SDK. (You can check with netstat -ban.)
I installed WinSSHD on the machine that runs the emulator. (I believe it should work with freeSSHd as well, but I couldn't get a login working there.)
I opened port 22 (TCP) in the Wi...
How do I install ASP.NET MVC 5 in Visual Studio 2012?
...io 2012. Update 4 seems to include the Web Tools update now.
Windows 8.1 SDK
Visual Studio 2012 Update 4
ASP.NET and Web Tools 2013.1 for Visual Studio 2012
You don't have to install the full Windows 8.1 SDK if you are just looking for the option to build web applications, just the .NET Framewor...
How can I develop for iPhone using a Windows development machine?
Is there any way to tinker with the iPhone SDK on a Windows machine? Are there plans for an iPhone SDK version for Windows?
...
Hidden features of Android development?
...
The tools in the /tools directory of the SDK deserve a mention:
our designer was particularly impressed with draw9patch which helped design stretchable buttons. He gave me assets from there, and I changed from a background colour to a 9-patch drawable and now we ...
Integrate ZXing in Android Studio
...
From version 4.x, only Android SDK 24+ is supported by default, and androidx is required.
Add the following to your build.gradle file:
repositories {
jcenter()
}
dependencies {
implementation 'com.journeyapps:zxing-android-embedded:4.1.0'
im...
Where'd padding go, when setting background Drawable?
... int bottom = view.getPaddingBottom() + drawablePadding.bottom;
int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
view.setBackgroundDrawable(backgroundDrawable);
} else {
view.setBackground(backgroundDrawable);
}
...
WakeLock 扩展：保持设备唤醒扩展，防止系统休眠和电池优化 · App Inventor 2 中文网
...01-26)：添加 WifiLock 功能
1.5 (2021-03-21)：添加版本属性和 SDK 版本检查
1.7 (2021-07-20)：添加 OnAfterRelease、AcquireCausesWakeup 属性和相关方法
截图
权限请求示例
应用截图
...
Clear Application's Data Programmatically
...ations:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)context.getSystemService(ACTIVITY_SERVICE))
.clearApplicationUserData(); // note: it has a return value!
} else {
// use old hacky way, which can be removed
// once minSdkV...
What permission do I need to access Internet from an Android application?
...eavocats"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="9"
android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_l...