Using LayoutParams on While loop Java, Android

Question

It seems like I have a problem with java code where I want to use LayoutParams in while loop.

So in this code, I thought it might be like this but not working.

If is width and height of the image > 0 , then start looping by subtracting height and width till 0.

Does anyone have some fix for this?

Here is the code:

 public void run() {


    ViewGroup.LayoutParams params = myBall.getLayoutParams();


    while ((params.height > 0) && (params.width > 0)) {
        params.width--;
        params.height--;
        myBall.setLayoutParams(params);
}}

It's like animation, I'm trying to make code that resize width and height of the image till it's gone. — user3537210, Apr 03 '15 at 20:25
I mean by decreasing Height and width, you are doing a animation ? — Ajeet, Apr 03 '15 at 20:26
Let's say "Animation" but it mustn't be repeatable. So image is resizing till 0, so it will be gone. — user3537210, Apr 03 '15 at 20:28
Actually by doing this 1) your view is not "gone" it will be still there 2) You will not see anything happening because View height and width diminishes in few milliseconds , You can't even see it shrinking. — Ajeet, Apr 03 '15 at 20:38
How could i help if you don't want any animation to be included. It gonna be more easier I guess. — Ajeet, Apr 03 '15 at 20:46
With Animation, I will not get what i need actually. This is not the only one "Scene" (code). There are more codes, so I can't use animation for this type. — user3537210, Apr 03 '15 at 20:47
Can you explain clearly what you want, Only then i can help. — Ajeet, Apr 03 '15 at 20:48
Great, I am seeing this first time here. Put some images, give some example, How i could help ? — Ajeet, Apr 03 '15 at 20:52

score 0 · Answer 1 · answered Apr 03 '15 at 21:05

Ok, try this

Create a folder named anim in your res and add anim_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter="true" >

    <scale
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="250"
        android:fromXScale="1"
        android:fromYScale="1"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toXScale="0"
        android:toYScale="0" >
    </scale>

    <alpha
        android:duration="250"
        android:fromAlpha="1"

        android:toAlpha="0" />

</set>

do this in your main java,

//Your view could be any View or ViewGroup
View view = (View) findViewById(R.id.view1);
view.setAnimation(AnimationUtils.loadAnimation(context,
                R.anim.anim_out));
 view.setVisibility(View.GONE);

Try this and tell me :). Happy coding

score -1 · Answer 2 · answered Apr 03 '15 at 20:38

-1

Try doing it like this:

 public void run() {
    while ((myBall.getLayoutParams().height > 0) && (myBall.getLayoutParams().width > 0))
    {
        myBall.getLayoutParams().width--;
        myBall.getLayoutParams().height--;
    }
}

Let me know if it did the trick.

answered Apr 03 '15 at 20:38

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Everything in android studio is fine, but when i run it on any device it unfortunately stopped – user3537210 Apr 03 '15 at 20:50
okay but there must be something in Log, some exception thrown. What was it? – Bugs Happen Apr 03 '15 at 20:53

Using LayoutParams on While loop Java, Android

2 Answers2