Created
April 4, 2016 17:57
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A wrapper for animating changes of android:weight property of views inside LinearLayout using ObjectAnimator
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| public class ViewWeightAnimationWrapper { | |
| private View view; | |
| public ViewWeightAnimationWrapper(View view) { | |
| if (view.getLayoutParams() instanceof LinearLayout.LayoutParams) { | |
| this.view = view; | |
| } else { | |
| throw new IllegalArgumentException("The view should have LinearLayout as parent"); | |
| } | |
| } | |
| public void setWeight(float weight) { | |
| LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) view.getLayoutParams(); | |
| params.weight = weight; | |
| view.setLayoutParams(params); | |
| } | |
| public float getWeight() { | |
| return ((LinearLayout.LayoutParams) view.getLayoutParams()).weight; | |
| } | |
| } | |
| // code sample | |
| ObjectAnimator.ofFloat(new ViewWeightAnimationWrapper(view), "weight", oldWeight, newWeight).start(); |
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