/*******************************************************************************
|
* Copyright 2011-2014 Sergey Tarasevich, Daniel Martí
|
*
|
* 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.
|
*******************************************************************************/
|
package com.nostra13.universalimageloader.core.display;
|
|
import android.graphics.Bitmap;
|
import android.view.View;
|
import android.view.animation.AlphaAnimation;
|
import android.view.animation.DecelerateInterpolator;
|
import android.widget.ImageView;
|
import com.nostra13.universalimageloader.core.assist.LoadedFrom;
|
import com.nostra13.universalimageloader.core.imageaware.ImageAware;
|
|
/**
|
* Displays image with "fade in" animation
|
*
|
* @author Sergey Tarasevich (nostra13[at]gmail[dot]com), Daniel Martí
|
* @since 1.6.4
|
*/
|
public class FadeInBitmapDisplayer implements BitmapDisplayer {
|
|
private final int durationMillis;
|
|
private final boolean animateFromNetwork;
|
private final boolean animateFromDisk;
|
private final boolean animateFromMemory;
|
|
/**
|
* @param durationMillis Duration of "fade-in" animation (in milliseconds)
|
*/
|
public FadeInBitmapDisplayer(int durationMillis) {
|
this(durationMillis, true, true, true);
|
}
|
|
/**
|
* @param durationMillis Duration of "fade-in" animation (in milliseconds)
|
* @param animateFromNetwork Whether animation should be played if image is loaded from network
|
* @param animateFromDisk Whether animation should be played if image is loaded from disk cache
|
* @param animateFromMemory Whether animation should be played if image is loaded from memory cache
|
*/
|
public FadeInBitmapDisplayer(int durationMillis, boolean animateFromNetwork, boolean animateFromDisk,
|
boolean animateFromMemory) {
|
this.durationMillis = durationMillis;
|
this.animateFromNetwork = animateFromNetwork;
|
this.animateFromDisk = animateFromDisk;
|
this.animateFromMemory = animateFromMemory;
|
}
|
|
@Override
|
public void display(Bitmap bitmap, ImageAware imageAware, LoadedFrom loadedFrom) {
|
imageAware.setImageBitmap(bitmap);
|
|
if ((animateFromNetwork && loadedFrom == LoadedFrom.NETWORK) ||
|
(animateFromDisk && loadedFrom == LoadedFrom.DISC_CACHE) ||
|
(animateFromMemory && loadedFrom == LoadedFrom.MEMORY_CACHE)) {
|
animate(imageAware.getWrappedView(), durationMillis);
|
}
|
}
|
|
/**
|
* Animates {@link ImageView} with "fade-in" effect
|
*
|
* @param imageView {@link ImageView} which display image in
|
* @param durationMillis The length of the animation in milliseconds
|
*/
|
public static void animate(View imageView, int durationMillis) {
|
if (imageView != null) {
|
AlphaAnimation fadeImage = new AlphaAnimation(0, 1);
|
fadeImage.setDuration(durationMillis);
|
fadeImage.setInterpolator(new DecelerateInterpolator());
|
imageView.startAnimation(fadeImage);
|
}
|
}
|
}
|