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Check if an apt-get package is installed and then install it if it's not on Linux
I'm working on a Ubuntu system and currently this is what I'm doing:
22 Answers
22
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Set selected index of an Android RadioGroup
...as R.id.radioButton1), and reduces the need to implement a lookup table to convert index to view id.
– Siavash
Feb 17 '15 at 3:51
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Base64 length calculation?
...al chunks. One or two bytes extra at the end of the string will still get converted to four bytes in the base64 string when padding is added. Unless you have a very specific use, it is best to add the padding, usually an equals character. I added an extra byte for a null character in C, because A...
Add object to ArrayList at specified index
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You can use Array of objects and convert it to ArrayList-
Object[] array= new Object[10];
array[0]="1";
array[3]= "3";
array[2]="2";
array[7]="7";
List<Object> list= Arrays.asList(array);
ArrayList will be- [1, null, 2, 3, null, null, null, 7, null...
android.content.res.Resources$NotFoundException: String resource ID #0x0
... it but it was not found, you wanted to set text so it should be string so convert integer into string by attaching .toStringe or String.valueOf(int) will solve your problem!
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Android ViewPager with bottom dots
...t;
</selector>
Feeling as lazy as I am? Well, all the above code is converted into a library!
Usage
Add the following in your gradle:
implementation 'com.chabbal:slidingdotsplash:1.0.2'
Add the following to your Activity or Fragment layout.
<com.chabbal.slidingdotsplash.SlidingSplashView
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Java using enum with switch statement
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The part you're missing is converting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
Use a list of static final ints rather than a type-safe enum and switch on the int valu...
Is null reference possible?
...ich may not be possible to do. Consider this simple function inside a file converter.cpp:
int& toReference(int* pointer) {
return *pointer;
}
When the compiler sees this function, it does not know whether the pointer is a null pointer or not. So it just generates code that turns any pointer...
Setting onClickListener for the Drawable right of an EditText [duplicate]
...at, you might need to create a static varaible in some other file. This to convert px to dp. A simple solution would be to remove that variable.
– Hardik4560
May 22 '13 at 3:54
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How does std::forward work? [duplicate]
..._cast<T&&> is confusing. Our intuition for a cast is that it converts a type to some other type -- in this case it would be a conversion to an rvalue reference. It's not! So we are explaining one mysterious thing using another mysterious thing. This particular cast is defined by a tabl...