get Rise Elevation Value ValueAnimator - Android android.animation

Android examples for android.animation:ValueAnimator

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Description

get Rise Elevation Value ValueAnimator

Demo Code


//package com.java2s;
import android.animation.ValueAnimator;
import android.annotation.TargetApi;
import android.os.Build;
import android.view.View;

public class Main {
    private static final int DEFUALT_MIN_ELEVATION = 1;
    private static final int DEFUALT_DEC_ELEVATION = 20;

    public static ValueAnimator getRiseElevationValue(
            final View targetView, int duration, final int mimElevation,
            final int maxElevation) {
        ValueAnimator addElevationValueAnim = ValueAnimator.ofInt(1);
        addElevationValueAnim//w  ww.  j av a2s  . c  o m
                .addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                    @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1)
                    @Override
                    public void onAnimationUpdate(ValueAnimator animation) {
                        float fraction = animation.getAnimatedFraction();
                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                            targetView.setElevation((1 - fraction)
                                    * maxElevation + mimElevation);
                        }
                    }
                });
        addElevationValueAnim.setDuration(duration);
        return addElevationValueAnim;
    }

    public static ValueAnimator getRiseElevationValue(
            final View targetView, int duration) {
        return getRiseElevationValue(targetView, duration,
                DEFUALT_MIN_ELEVATION, DEFUALT_DEC_ELEVATION);
    }
}

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