Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;

import android.view.View;
import android.view.ViewPropertyAnimator;
import android.view.animation.Interpolator;
import android.view.animation.PathInterpolator;

public class Main {
    public static final int DEFAULT_DURATION = -1;
    public static final Interpolator EASE_IN = new PathInterpolator(0.0f, 0.0f, 0.2f, 1.0f);

    /**
     * Scales in the view from scale of 0 to actual dimensions.
     * @param view The view to scale.
     * @param durationMs The duration of the scaling in milliseconds.
     * @param startDelayMs The delay to applying the scaling in milliseconds.
     */
    public static void scaleIn(final View view, int durationMs, int startDelayMs) {
        AnimatorListenerAdapter listener = (new AnimatorListenerAdapter() {
            @Override
            public void onAnimationStart(Animator animation) {
                view.setVisibility(View.VISIBLE);
            }

            @Override
            public void onAnimationCancel(Animator animation) {
                view.setScaleX(1);
                view.setScaleY(1);
            }
        });
        scaleInternal(view, 0 /* startScaleValue */, 1 /* endScaleValue */, durationMs, startDelayMs, listener,
                EASE_IN);
    }

    private static void scaleInternal(final View view, int startScaleValue, int endScaleValue, int durationMs,
            int startDelay, AnimatorListenerAdapter listener, Interpolator interpolator) {
        view.setScaleX(startScaleValue);
        view.setScaleY(startScaleValue);

        final ViewPropertyAnimator animator = view.animate();
        animator.cancel();

        animator.setInterpolator(interpolator).scaleX(endScaleValue).scaleY(endScaleValue).setListener(listener)
                .withLayer();

        if (durationMs != DEFAULT_DURATION) {
            animator.setDuration(durationMs);
        }
        animator.setStartDelay(startDelay);

        animator.start();
    }
}