jawnnypoo / physicslayout

Android layout that simulates physics using JBox2D

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physicslayout's Issues

Get Body after adding View dynamically

Hi,
I'm adding Views to the PhysicsLayout with addView(). I want to create a Joint between multiple dynamically added Views. How can I access the Body Instance right after adding the View so I can create a Joint?

Applying force to views

Hi, i found your great Project and was amazed how quick this leads to cool looking results. After fiddling around a bit i was wondering how to apply a force to views. I want them to "fall" into the middle of the screen like there is the center of a huge mass. I'm trying to misuse the gravity property to simulate a force, but it would be nice to have an interface to the "bodys" of the box2d entitys.

Thanks for you work :)

How to use fling=true in a scrollview?

I've experimented with a number of different ways to intercept the touch events, but I cannot seem to figure out how to enable fling when the PhysicsFrameLayout is in a NestedScrollView, and be able to drag the views inside it vertically.

I can drag them horizontally fine, but as soon as I start dragging vertically I get an ACTION_CANCEL MotionEvent, and my dragging of the view inside the PhysicsFrameLayout stops.

Question about the inconsistency between the number of child views added and the number actually displayed

I'm using PhysicsFrameLayout, then I dynamically added 11 ImageView layouts, but only 7 of them are actually displayed, what can I do to display all the views?

set "layout_fixedRotation" dynamically

Hi, Thanks for your great lib.

Is there anyway to set layout_fixedRotation dynamically?
I want to add an inflated view to PhysicsRelativeLayout in runtime, but i cannot set this feature for the inflated view.
how can I do that?

Thanks in advance.

How to update radius of already added view

I'm working on scaling the objects within physics layout.When scale objects their radius does not change and the view goes beyond boundaries. Is there any way to change the radius of already added view in the layout?

drag & drop object

Hello.
I have imported your lib in my app and am using its 'statik' feature for drag & drop ImageViews. It is a great library, thank you :)

My question is:
Is there a way to detect where user drops the object?

Edit:
When I use this code to detect user's touch release, the object (ball) doesn't move anymore:

ball.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if(event.getAction() == MotionEvent.ACTION_UP)
                    Toast.makeText(MainActivity.this, "Dropped.", Toast.LENGTH_SHORT).show();
                return true;
            }
        });

Is there edge detection?

Does it have edge detection? Listening is triggered every time the edge is touched by scrolling @mkonecny @Jawnnypoo @jaspervandeklundert

Problem with joints

Hello,
I'm trying to use this physics layout, but I have found a problem when, in the main activity, I create a joint between two bodies. The joint is created correctly, but it's remove again, I think it is because in the 'onLayout' the world is recreated once and once again and only the bodies are safe for the next world. To try fix it, I modify the 'createWorld' method in the Physics class, but when I save the Joints in the array like bodies, I get an error with the memory, concretly this:
java.lang.OutOfMemoryError: Failed to allocate a 154589920 byte allocation with 33554432 free bytes and 125MB until OOM

Can help me? Thanks in advance.
Are the joints really removed? or, maybe, Am I doing something wrong?

After 2 minutes very laggy

Hi.
very good lib;
but after 2 or 3 minutes going to laggy.

Multi touch don't work

The fling work only for one view.
Is it possible to activate X to move objects?

Thank you

physicsLayout.getPhysics().giveRandomImpulse() bug

call method multiple time gone items please help me

Jetpack Compose Version (Simplified)

Thanks for this repo, I write a corresponding Jetpack Compose version. https://github.com/FunnySaltyFish/JetpackComposePhysicsLayout :)

Can I Change the Bounds' restitution?

Physics freezes after all child views finished movement

Hello, I'm looking for a way to change this behavior:

Help with onClickListener on PhysicsLayout child view

Hi, my name is Eduardo and i have been trying to figure out a way to set a onClickListener on a PhysicsLayout child view to change its background color. The thing is, when i do, all the physics behaviour stop working. Do you have any suggestions that could help me?

Sorry if this is a obvious question, i am just starting android developing :P

Too fast to the edge, the figure will disappear

i am Chinese ，Can you understand the title ?

problem with the layout

the views get stuck on the corners of the bounds

Circular bounding layout

Maybe I'm missing it, but there does not appear to be a way to create a PhysicsFrameLayout (or other layout) that's boundary is a circle. I'm looking to put circle views inside a circular bounding layout. Is there a way to do this?

Fling not working

I have app:fling="true" and app:physics="true" in my PhysicsFrameLayout, but I cant't fling the ImageVew inside.

Is there something extra I need to do?

Maybe change your README.md

You just write

compile 'com.github.Jawnnypoo:PhysicsLayout:2.1.0'

in your README.md,but I find that in jitpack.io,your newest version is 2.0.0.
:)

Support layout params

Is there a way to make views not draggable or add views that don't have physics enabled?

I have a PhysicsLayout with physics enabled and have tried
Physics.setPhysicsConfig(view, null)

Is either possible?

Help with adding view to PhysicsLinearLayout

Hi John, thank you for making this awesome library. I am trying to use it with my project. But when I tried to add child views to the PhysicsLinearLayout, the animation paused when new child view was added, like

physicsLayout = (ViewGroup) rootView.findViewById(R.id.physics_layout);
physicsLayout.addView(textView, params);

When a new TextView was added to the PhysicalLinearLayout meanwhile a previously added TextView was falling down, the latter will pause at the moment the new view was added. Any idea to solve this ?

Thanks again for this awesome library!

Performance issue when I add more than 10 views

Hi,

I have encounter a performance issue when I built my own app.
That is when I add more than 10 object inside the view. It start getting lag and sometimes crashed.
I also download your sample app and everything seems fine.
So I make my code almost as same as yours. But the problem is still there.
Could you give my some advice or how you make your app's performance better?

Is there any way views/childs in layouts can move according to accelerometer values

Is there any way views/childs in layouts can move according to accelerometer values

Consider making PixelsPerMeter a function of DP by default

Testing out this great library, and was a little puzzled when different DPI phones had boundaries at different positions.

I've been able to set this myself using setPixelsPerMeter but I think it would be a great default if 50 was replaced by 50/3 * density (since most phone densities today are 3 or 4)

Difference between the sample on Google Play and sample on github

There is alot of lag in the github sample where as i can add multiple views without any lag in the sample on Google Play without any lag.

why is that?

Create flappy bird sample

I can't dynamically add a child layout via addView, it crashes!

It crashes when I dynamically add a child layout via the addview method.
Here is the code to add the section:

for (int i = 0; i < dataList.size(); i++) {
    JsonMap item = dataList.getJsonMap(i);
    ImageView imageView = new ImageView(this);
    Glide.with(me)
            .load(item.getString("image_url"))
            .into(imageView);
    physicsLayout.addView(imageView);
}

Here is the crash message:

java.lang.AssertionError
	at org.jbox2d.collision.shapes.PolygonShape.computeMass(PolygonShape.java:545)
	at org.jbox2d.dynamics.Fixture.getMassData(Fixture.java:253)
	at org.jbox2d.dynamics.Body.resetMassData(Body.java:687)
	at org.jbox2d.dynamics.Body.createFixture(Body.java:203)
	at com.jawnnypoo.physicslayout.Physics.createBody(Physics.kt:470)
	at com.jawnnypoo.physicslayout.Physics.createWorld(Physics.kt:347)
	at com.jawnnypoo.physicslayout.Physics.onLayout(Physics.kt:240)
	at com.jawnnypoo.physicslayout.PhysicsLinearLayout.onLayout(PhysicsLinearLayout.kt:58)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1103)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
	at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
	at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1891)
	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1729)
	at android.widget.LinearLayout.onLayout(LinearLayout.java:1638)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
	at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1891)
	at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1729)
	at android.widget.LinearLayout.onLayout(LinearLayout.java:1638)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
	at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
	at com.android.internal.policy.DecorView.onLayout(DecorView.java:789)
	at android.view.View.layout(View.java:24421)
	at android.view.ViewGroup.layout(ViewGroup.java:6440)
	at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:4258)
	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3583)
	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2465)
	at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:9305)
	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1339)
	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1348)
	at android.view.Choreographer.doCallbacks(Choreographer.java:952)
	at android.view.Choreographer.doFrame(Choreographer.java:882)
	at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1322)
	at android.os.Handler.handleCallback(Handler.java:958)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:205)
	at android.os.Looper.loop(Looper.java:294)

But when I preset the sub-layout in the layout xml file there is no problem, I would like to get help with that!

Locked in an angle

My objects come to be blocked against the bounds of the layout
One idea to solve the problem?
Thank you.

Still Compute Physics for Grabbed Views

Right now, if a view is grabbed and being dragged, you can see that the physics body remains in its place even though the view moves.

Hello, ask the next question

I imitated your project, but the two balls did not collide with each other.
This is the project I wrote, can help me find
https://github.com/xufeifandj/Ball