How To Get Random Number On Android Object Animator

Hello guys i am trying to get random number in my object animator. I want to get random number for 'TranslationX' ` imagebutton1.setOnClickList

Solution 1:

First of all get the Width of Screen which may give you limit till where you can translate X

DisplayMetricsdisplaymetrics=newDisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
intwidth= displaymetrics.widthPixels;

Include Random() to get the random translation from the maximum width of screen.

Randomr=newRandom();
inttranslationX= r.nextInt(width)

Use these random generated in translating your view.

publicvoidonClick(View v) {
       ...
        ObjectAnimatoranim= ObjectAnimator.ofFloat(imagebutton1, translationX, 100f, 100f);
 }

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Translating view over your screen.

You can get the view current position with it's getLeft(), getRight(), getTop() and getBottom(). Use these combination to get the view current position and translate from current position to new random position which is within the screen.

DisplayMetricsdisplaymetrics=newDisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
intwidth= displaymetrics.widthPixels;
intheight= displaymetrics.heightPixels;

Randomr=newRandom();
inttranslationX= r.nextInt(width);
inttranslationY= r.nextInt(height)

TranslateAnimationanim=newTranslateAnimation( currentX, translationX , currentY, translationY ); //Use current view position instead of `currentX` and `currentY`
anim.setDuration(1000);
anim.setFillAfter(true);

Apply animation on View which you can post with Handler on schedule interval of time.

 view.startAnimation(anim);

Solution 2:

Randomrand=newRandom();

intn= rand.nextInt(50) + 1;

where nextInt value is the Maximum value so in this example its from 1- 50

Solution 3:

First, import the class

import java.util.Random;

Then create a randomizer:

Randomr=newRandom();

Then call the randomizer with the various next... methods. For example,

int locX = r.nextInt(600) + 50;
int locY = r.nextInt(1024) + 50;

The randomizer creates a pseudo-random number in the range of 0 to 1 (including 0, but not including 1). When you call the nextFloat or nextInt method, it multiplies this random number by the parameter and then coerces the result into the appropriate type.

See details of the randomizer at http://developer.android.com/reference/java/util/Random.html