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How do I verify that an Android apk is signed with a release certificate?
How can I check that an Android apk is signed with a release and not debug cert?
5 Answers
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How can I know when an EditText loses focus?
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Implement onFocusChange of setOnFocusChangeListener and there's a boolean parameter for hasFocus. When this is false, you've lost focus to another control.
EditText txtEdit = (EditText) findViewById(R.id.edittxt);
txtEdit.setOnFocusChangeListener(new OnFocusChangeListener(...
Is there a Java reflection utility to do a deep comparison of two objects?
...te unit tests for a variety of clone() operations inside a large project and I'm wondering if there is an existing class somewhere that is capable of taking two objects of the same type, doing a deep comparison, and saying if they're identical or not?
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jQuery: checking if the value of a field is null (empty)
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@Pispirulito: I don't think so, and I don't think that it will be changed. A select without any option elements is not something that you normally have. It's pretty useless.
– Guffa
Jan 30 '14 at 21:22
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What are the advantages of using a schema-free database like MongoDB compared to a relational databa
I'm used to using relational databases like MySQL or PostgreSQL, and combined with MVC frameworks such as Symfony, RoR or Django, and I think it works great.
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Detect Windows version in .net
...n't explicitly state that your exe assembly is compatible with Windows 8.1 and Windows 10.0, System.Environment.OSVersion will return Windows 8 version, which is 6.2, instead of 6.3 and 10.0! Source: here.
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How to set breakpoints on future shared libraries with a command flag
I'm trying to automate a gdb session using the --command flag. I'm trying to set a breakpoint on a function in a shared library (the Unix equivalent of a DLL) . My cmds.gdb looks like this:
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Editing legend (text) labels in ggplot
I have spent hours looking in the documentation and on StackOverflow, but no solution seems to solve my problem. When using ggplot I can't get the right text in the legend, even though it's in my dataframe. I have tried scale_colour_manual , scale_fill_manual with different values for labels=...
Why do I want to avoid non-default constructors in fragments?
I am creating an app with Fragments and in one of them, I created a non-default constructor and got this warning:
6 Answe...
What is the largest Safe UDP Packet Size on the Internet
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It is true that a typical IPv4 header is 20 bytes, and the UDP header is 8 bytes. However it is possible to include IP options which can increase the size of the IP header to as much as 60 bytes. In addition, sometimes it is necessary for intermediate nodes to encapsulate d...