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Broadcast receiver for checking internet connection in android app

...c void onReceive(Context context, Intent intent) { Bundle extras = intent.getExtras(); NetworkInfo info = (NetworkInfo) extras .getParcelable("networkInfo"); State state = info.getState(); Log.d("TEST Internet...
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Create Directory When Writing To File In Node.js

... Node <= 10.11.0 You can solve this with a package like mkdirp or fs-extra. If you don't want to install a package, please see Tiago Peres França's answer below. share | improve this answer ...
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Is it possible to implement a Python for range loop without an iterator variable?

...'myapplication') _ = gettext.gettext # ... print _('This is a translatable string.') share | improve this answer | follow | ...
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Android Studio could not find any version that matches com.android.support:appcompat-v7:+

...io go to: Tools >> Android >> SDK Manager Select and install "Extras|Android Support Repository" share | improve this answer | follow | ...
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How to document a method with parameter(s)?

How to document methods with parameters using Python's documentation strings? 8 Answers ...
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使用Activity启动器组件 · App Inventor 2 中文网

...性 DataType 和 DataURI 在 App Inventor 中设置这些。 还有一个 Extras 属性,它采用键和值的列表并指定相应键的属性值。 你必须设置的特定值取决于你要启动的活动。 这里有些例子。 警告:这些示例中的值取决于应用程序用户设备...
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Guaranteed lifetime of temporary in C++?

...Schaub: What is a "full-expression" in this case: printf("%s", strdup(std::string("$$$").c_str()) ); ?I mean if strdup(std::string("$$$").c_str()) is taken as the full expression, then the pointer that strdup sees is valid. If std::string("$$$").c_str() is a full expression, then the pointer that st...
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How to enter quotes in a Java string?

I want to initialize a String in Java, but that string needs to include quotes; for example: "ROM" . I tried doing: 10 Ans...
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Cannot delete directory with Directory.Delete(path, true)

...Just slap this code into your project. public static void DeleteDirectory(string target_dir) { string[] files = Directory.GetFiles(target_dir); string[] dirs = Directory.GetDirectories(target_dir); foreach (string file in files) { File.SetAttributes(file, FileAttributes.Nor...
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What does if __name__ == “__main__”: do?

...in program, e.g. python foo.py the interpreter will assign the hard-coded string "__main__" to the __name__ variable, i.e. # It's as if the interpreter inserts this at the top # of your module when run as the main program. __name__ = "__main__" When Your Module Is Imported By Another On the other...