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How to pass the values from one activity to previous activity
...ctivity when a user clicks the button, you need to create a new Intent and include the entered text value in its extras bundle. To pass it back to the parent call setResult before calling finish to close the secondary Activity.
Intent resultIntent = new Intent();
resultIntent.putExtra(PUBLIC_STATIC...
What is the difference between min SDK version/target SDK version vs. compile SDK version?
... that forces to use compileSdkVersion - level 28. compileSdkVersion is not included in your APK: it is purely used at compile time. Changing your compileSdkVersion does not change runtime behavior. It can generate for example new compiler warnings/errors. Therefore it is strongly recommended that yo...
What's the difference between disabled=“disabled” and readonly=“readonly” for HTML form input fields
...ead only form elements can receive the focus
Read only form elements are included in tabbed navigation.
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How do you get a query string on Flask?
...est. As its name suggests, it contains all the information that the client included in the HTTP request. This object has many attributes and methods that you can retrieve and call, respectively.
You have quite a few request attributes which contain the query string from which to choose. Here I will...
Android - Pulling SQlite database android device
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If your device is running Android v4 or above, you can pull app data, including it's database, without root by using adb backup command, then extract the backup file and access the sqlite database.
First backup app data to your PC via USB cable with the following command, replace app.package.n...
How does the NSAutoreleasePool autorelease pool work?
...t that your statement "anything called with new, alloc or init" should not include "init" (but should include "copy"), because "init" doesn't allocate memory, it only sets up the object (constructor fashion). If you received an alloc'd object and your function only called init as such, you would not...
Error - trustAnchors parameter must be non-empty
... is COMPLETELY EMPTY, that's the error you can get with various libraries (including Apache HttpClient).
– Alan Franzoni
Aug 22 '17 at 10:12
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How to find the sum of an array of numbers
...g an alert isn't the worst thing that could happen. The only reason I have included this is as an answer Ortund's question as I do not think it was clarified.
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Debug vs. Release performance
...ables and compiles the code as is. In release mode, some optimizations are included:
unused variables do not get compiled at all
some loop variables are taken out of the loop by the compiler if they are proven to be invariants
code written under #debug directive is not included, etc.
The rest is u...
When and why should I use fragments in Android applications? [duplicate]
...ragment, do we just have (for example) a main layout file and then use <include fragement code here/> inside that file whereever we want to include a fragment? And maybe if we dont want a fragment to always be there either hide it and show it when needed or inject it when needed?
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