Android Animation 'f' meaning

Question

I am confused by the 'f'.

ObjectAnimator moveUp = ObjectAnimator.ofFloat(ivLogo, "translationY", 0f, -150f);
    moveUp.setDuration(1000);
    moveUp.setStartDelay(500);
    moveUp.start();

What's the meaning of 'f'?And what's the meaning of form 'of' to '-150f'?

score 2 · Answer 1 · answered Jun 01 '16 at 14:55

2

The 'f' means that the -150 is a float type, not a value by itself

answered Jun 01 '16 at 14:55

moictab

959
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score 2 · Accepted Answer · answered Jun 01 '16 at 14:55

2

It's a floating point literal. https://docs.oracle.com/javase/specs/jls/se8/html/jls-3.html#jls-3.10.2

0f means that 0 is float

answered Jun 01 '16 at 14:55

Kirill Akhmetov

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4
12

score 2 · Answer 3 · answered Jun 01 '16 at 14:55

That f is needed because the parameter type the function expects is float. And that is the way of converting 0 (which is integer) to float.

See here

Also using d and L will give you double and long type respectively (just in case if you see them any other place.)

Android Animation 'f' meaning

3 Answers3