malevich
Android displaying bitmaps library
This library is just wrapper for Google tutorial Loading Large Bitmaps Efficiently:
http://developer.android.com/intl/ru/training/displaying-bitmaps/load-bitmap.html
Example of usage:
https://github.com/recoilme/android-DisplayingBitmaps
How to use:
// init Malevich malevich = new Malevich.Builder(this).build();
// use malevich.load(mImageUrl).into(mImageView);
Thats all!
Advansed usage:
Memory and disk caching params
ImageCache.ImageCacheParams cacheParams = new ImageCache.ImageCacheParams(this, "dir");
cacheParams.memoryCacheEnabled = true; //Enable memory cache
cacheParams.setMemCacheSizePercent(0.4f);
//Percent of available memory for cache
cacheParams.compressQuality = 90; // Compress quality
cacheParams.compressFormat = Bitmap.CompressFormat.PNG; // Compress format
cacheParams.diskCacheEnabled = true; // Use disk cache
cacheParams.diskCacheSize = 10485760; // Disk cache size Malevich Builder
malevich = new Malevich.Builder(this)
.debug(true) // write log
.maxSize(1024) // max size of image in px
.LoadingImage(R.drawable.some) // preloader image or recource
.CacheParams(casheParams) // custom cache
.build();
Loading image
malevich.load(some).into(ImageView);
you may load:
- Bitmap
- BitmapDrawable
- Resource id
- HttpUrl
Transform image after loading with prebuild utils or custom method
malevich.load(url).width(mItemHeight).height(mItemHeight).imageDecodedListener(new Malevich.ImageDecodedListener() {
@Override
public Bitmap onImageDecoded(String data, int reqWidth, int reqHeight, Bitmap bitmap) {
// Get squared bitmap and transform it to circle
return Malevich.Utils.getSquaredCircleBitmap(bitmap,reqWidth);
}
}
).into(imageView);
Pause loading on scroll
mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView absListView, int scrollState) {
// Pause fetcher to ensure smoother scrolling when flinging
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
// Pause image loading on scroll to help with performance
malevich.setPauseWork(true);
}
else {
malevich.setPauseWork(false);
}
}
@Override
public void onScroll(AbsListView absListView, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
}
}
);
Can?el and pausing tasks
@Override
public void onResume() {
super.onResume();
malevich.setExitTasksEarly(false);
mAdapter.notifyDataSetChanged();
}
@Override
public void onPause() {
super.onPause();
malevich.setPauseWork(false);
malevich.setExitTasksEarly(true);
malevich.flushCache();
}
@Override
public void onDestroy() {
super.onDestroy();
malevich.closeCache();
}