Android View Disappearing When Go Outside Of Paren

问题:

I have a LinearLayout and ImageView inside this LinearLayout.

There is a translation effect for ImageView.

// v = ImageView    
ObjectAnimator animation2 = ObjectAnimator.ofFloat(v, "translationY", 200);
                        animation2.setDuration(3000);
                        animation2.setTarget(v);
                        animation2.start();

Animation working but it's disappearing when ImageView go outside of LinearLayout.

You can see problem here : http://screenr.com/zoAH

How can i fix it without modify LinearLayout's height.

回答1:

Find the ViewGroup that the ImageView belongs to and apply ViewGroup.setClipChildren(false). By default, the drawing of the children is limited to the bounds of the parent ViewGroup.

回答2:

Two attributes exist that may cause this to happen: clipChildren and clipToPadding. You'll need to set clipChildren to false for each parent ViewGroup whose bounds the object will animate out of. You also need to set clipToPadding to the immediate parent (and maybe more, but I haven't seen a case for it yet).

You can set both attributes in the XML

android:clipChildren="false"
android:clipToPadding="false"

or in code

viewGroup.setClipChildren(false);
viewGroup.setClipToPadding(false);

回答3:

My implementation. It can probably help somebody:

public static void setAllParentsClip(View v, boolean enabled) {
    while (v.getParent() != null && v.getParent() instanceof ViewGroup) {
        ViewGroup viewGroup = (ViewGroup) v.getParent();
        viewGroup.setClipChildren(enabled);
        viewGroup.setClipToPadding(enabled);
        v = viewGroup;
    }
}

call setAllParentsClip(yourView, false); to disable the clipping in all the parents.

回答4:

In my case clipChildren did nothing but clipToPadding="false" fixed the problem. Go figure.

回答5:

Get the view height, then add a percentage of the height to where it will slide to

public void SlideUp(View view){
     float height = view.getHeight();

     TranslateAnimation animate = new TranslateAnimation(0,0,0,0);   

     animate.setDuration(500);
     animate.setFillAfter(true);

     view.animate().translationY((float)(0-0.62*height)).start(); 
     view.startAnimation(animate);
}

回答6:

try to update camera position as in my case below:
 ValueAnimator lockAnimator = ValueAnimator.ofFloat(1, 0);     // value from 0 to 1
                lockAnimator.setDuration(500);
                lockAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                    @Override
                    public void onAnimationUpdate(ValueAnimator pAnimation) {
                        float value = (Float) (pAnimation.getAnimatedValue());
                        if (value < .6 && flipped) {
                            if (preview != null)
                                mCanvasImage.setImageBitmap(preview);
                            else
                                mCanvasImage.setImageBitmap(imageBitmap);
                            flipped = false;
                        }
                        if (value > .3 && value < .7) {
                            lyt_rlt_container.setCameraDistance(lyt_rlt_container.getCameraDistance() - 100);
                        } else {
                            lyt_rlt_container.setCameraDistance(lyt_rlt_container.getCameraDistance() + 100);
                        }
                        lyt_rlt_container.setRotationY(180 * value);

                    }
                });
                lockAnimator.start();